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-rw-r--r--sound/soc/meson/Kconfig41
-rw-r--r--sound/soc/meson/Makefile19
-rw-r--r--sound/soc/meson/aiu-acodec-ctrl.c203
-rw-r--r--sound/soc/meson/aiu-codec-ctrl.c151
-rw-r--r--sound/soc/meson/aiu-encoder-i2s.c365
-rw-r--r--sound/soc/meson/aiu-encoder-spdif.c209
-rw-r--r--sound/soc/meson/aiu-fifo-i2s.c153
-rw-r--r--sound/soc/meson/aiu-fifo-spdif.c186
-rw-r--r--sound/soc/meson/aiu-fifo.c223
-rw-r--r--sound/soc/meson/aiu-fifo.h50
-rw-r--r--sound/soc/meson/aiu.c388
-rw-r--r--sound/soc/meson/aiu.h89
-rw-r--r--sound/soc/meson/axg-card.c414
-rw-r--r--sound/soc/meson/axg-fifo.c2
-rw-r--r--sound/soc/meson/g12a-toacodec.c252
-rw-r--r--sound/soc/meson/g12a-tohdmitx.c219
-rw-r--r--sound/soc/meson/gx-card.c141
-rw-r--r--sound/soc/meson/meson-card-utils.c385
-rw-r--r--sound/soc/meson/meson-card.h55
-rw-r--r--sound/soc/meson/meson-codec-glue.c149
-rw-r--r--sound/soc/meson/meson-codec-glue.h32
-rw-r--r--sound/soc/meson/t9015.c333
22 files changed, 3501 insertions, 558 deletions
diff --git a/sound/soc/meson/Kconfig b/sound/soc/meson/Kconfig
index 2e3676147cea..8b6295283989 100644
--- a/sound/soc/meson/Kconfig
+++ b/sound/soc/meson/Kconfig
@@ -2,6 +2,16 @@
menu "ASoC support for Amlogic platforms"
depends on ARCH_MESON || COMPILE_TEST
+config SND_MESON_AIU
+ tristate "Amlogic AIU"
+ select SND_MESON_CODEC_GLUE
+ select SND_PCM_IEC958
+ imply SND_SOC_MESON_T9015
+ imply SND_SOC_HDMI_CODEC if DRM_MESON_DW_HDMI
+ help
+ Select Y or M to add support for the Audio output subsystem found
+ in the Amlogic Meson8, Meson8b and GX SoC families
+
config SND_MESON_AXG_FIFO
tristate
select REGMAP_MMIO
@@ -50,6 +60,7 @@ config SND_MESON_AXG_TDMOUT
config SND_MESON_AXG_SOUND_CARD
tristate "Amlogic AXG Sound Card Support"
select SND_MESON_AXG_TDM_INTERFACE
+ select SND_MESON_CARD_UTILS
imply SND_MESON_AXG_FRDDR
imply SND_MESON_AXG_TODDR
imply SND_MESON_AXG_TDMIN
@@ -85,11 +96,41 @@ config SND_MESON_AXG_PDM
Select Y or M to add support for PDM input embedded
in the Amlogic AXG SoC family
+config SND_MESON_CARD_UTILS
+ tristate
+
+config SND_MESON_CODEC_GLUE
+ tristate
+
+config SND_MESON_GX_SOUND_CARD
+ tristate "Amlogic GX Sound Card Support"
+ select SND_MESON_CARD_UTILS
+ imply SND_MESON_AIU
+ help
+ Select Y or M to add support for the GXBB/GXL SoC sound card
+
+config SND_MESON_G12A_TOACODEC
+ tristate "Amlogic G12A To Internal DAC Control Support"
+ select SND_MESON_CODEC_GLUE
+ select REGMAP_MMIO
+ imply SND_SOC_MESON_T9015
+ help
+ Select Y or M to add support for the internal audio DAC on the
+ g12a SoC family
+
config SND_MESON_G12A_TOHDMITX
tristate "Amlogic G12A To HDMI TX Control Support"
select REGMAP_MMIO
+ select SND_MESON_CODEC_GLUE
imply SND_SOC_HDMI_CODEC
help
Select Y or M to add support for HDMI audio on the g12a SoC
family
+
+config SND_SOC_MESON_T9015
+ tristate "Amlogic T9015 DAC"
+ select REGMAP_MMIO
+ help
+ Say Y or M if you want to add support for the internal DAC found
+ on GXL, G12 and SM1 SoC family.
endmenu
diff --git a/sound/soc/meson/Makefile b/sound/soc/meson/Makefile
index 1a8b1470ed84..e446bc980481 100644
--- a/sound/soc/meson/Makefile
+++ b/sound/soc/meson/Makefile
@@ -1,5 +1,13 @@
# SPDX-License-Identifier: (GPL-2.0 OR MIT)
+snd-soc-meson-aiu-objs := aiu.o
+snd-soc-meson-aiu-objs += aiu-acodec-ctrl.o
+snd-soc-meson-aiu-objs += aiu-codec-ctrl.o
+snd-soc-meson-aiu-objs += aiu-encoder-i2s.o
+snd-soc-meson-aiu-objs += aiu-encoder-spdif.o
+snd-soc-meson-aiu-objs += aiu-fifo.o
+snd-soc-meson-aiu-objs += aiu-fifo-i2s.o
+snd-soc-meson-aiu-objs += aiu-fifo-spdif.o
snd-soc-meson-axg-fifo-objs := axg-fifo.o
snd-soc-meson-axg-frddr-objs := axg-frddr.o
snd-soc-meson-axg-toddr-objs := axg-toddr.o
@@ -11,8 +19,14 @@ snd-soc-meson-axg-sound-card-objs := axg-card.o
snd-soc-meson-axg-spdifin-objs := axg-spdifin.o
snd-soc-meson-axg-spdifout-objs := axg-spdifout.o
snd-soc-meson-axg-pdm-objs := axg-pdm.o
+snd-soc-meson-card-utils-objs := meson-card-utils.o
+snd-soc-meson-codec-glue-objs := meson-codec-glue.o
+snd-soc-meson-gx-sound-card-objs := gx-card.o
+snd-soc-meson-g12a-toacodec-objs := g12a-toacodec.o
snd-soc-meson-g12a-tohdmitx-objs := g12a-tohdmitx.o
+snd-soc-meson-t9015-objs := t9015.o
+obj-$(CONFIG_SND_MESON_AIU) += snd-soc-meson-aiu.o
obj-$(CONFIG_SND_MESON_AXG_FIFO) += snd-soc-meson-axg-fifo.o
obj-$(CONFIG_SND_MESON_AXG_FRDDR) += snd-soc-meson-axg-frddr.o
obj-$(CONFIG_SND_MESON_AXG_TODDR) += snd-soc-meson-axg-toddr.o
@@ -24,4 +38,9 @@ obj-$(CONFIG_SND_MESON_AXG_SOUND_CARD) += snd-soc-meson-axg-sound-card.o
obj-$(CONFIG_SND_MESON_AXG_SPDIFIN) += snd-soc-meson-axg-spdifin.o
obj-$(CONFIG_SND_MESON_AXG_SPDIFOUT) += snd-soc-meson-axg-spdifout.o
obj-$(CONFIG_SND_MESON_AXG_PDM) += snd-soc-meson-axg-pdm.o
+obj-$(CONFIG_SND_MESON_CARD_UTILS) += snd-soc-meson-card-utils.o
+obj-$(CONFIG_SND_MESON_CODEC_GLUE) += snd-soc-meson-codec-glue.o
+obj-$(CONFIG_SND_MESON_GX_SOUND_CARD) += snd-soc-meson-gx-sound-card.o
+obj-$(CONFIG_SND_MESON_G12A_TOACODEC) += snd-soc-meson-g12a-toacodec.o
obj-$(CONFIG_SND_MESON_G12A_TOHDMITX) += snd-soc-meson-g12a-tohdmitx.o
+obj-$(CONFIG_SND_SOC_MESON_T9015) += snd-soc-meson-t9015.o
diff --git a/sound/soc/meson/aiu-acodec-ctrl.c b/sound/soc/meson/aiu-acodec-ctrl.c
new file mode 100644
index 000000000000..7078197e0cc5
--- /dev/null
+++ b/sound/soc/meson/aiu-acodec-ctrl.c
@@ -0,0 +1,203 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include <dt-bindings/sound/meson-aiu.h>
+#include "aiu.h"
+#include "meson-codec-glue.h"
+
+#define CTRL_DIN_EN 15
+#define CTRL_CLK_INV BIT(14)
+#define CTRL_LRCLK_INV BIT(13)
+#define CTRL_I2S_IN_BCLK_SRC BIT(11)
+#define CTRL_DIN_LRCLK_SRC_SHIFT 6
+#define CTRL_DIN_LRCLK_SRC (0x3 << CTRL_DIN_LRCLK_SRC_SHIFT)
+#define CTRL_BCLK_MCLK_SRC GENMASK(5, 4)
+#define CTRL_DIN_SKEW GENMASK(3, 2)
+#define CTRL_I2S_OUT_LANE_SRC 0
+
+#define AIU_ACODEC_OUT_CHMAX 2
+
+static const char * const aiu_acodec_ctrl_mux_texts[] = {
+ "DISABLED", "I2S", "PCM",
+};
+
+static int aiu_acodec_ctrl_mux_put_enum(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_kcontrol_component(kcontrol);
+ struct snd_soc_dapm_context *dapm =
+ snd_soc_dapm_kcontrol_dapm(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned int mux, changed;
+
+ mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
+ changed = snd_soc_component_test_bits(component, e->reg,
+ CTRL_DIN_LRCLK_SRC,
+ FIELD_PREP(CTRL_DIN_LRCLK_SRC,
+ mux));
+
+ if (!changed)
+ return 0;
+
+ /* Force disconnect of the mux while updating */
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
+
+ snd_soc_component_update_bits(component, e->reg,
+ CTRL_DIN_LRCLK_SRC |
+ CTRL_BCLK_MCLK_SRC,
+ FIELD_PREP(CTRL_DIN_LRCLK_SRC, mux) |
+ FIELD_PREP(CTRL_BCLK_MCLK_SRC, mux));
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+ return 0;
+}
+
+static SOC_ENUM_SINGLE_DECL(aiu_acodec_ctrl_mux_enum, AIU_ACODEC_CTRL,
+ CTRL_DIN_LRCLK_SRC_SHIFT,
+ aiu_acodec_ctrl_mux_texts);
+
+static const struct snd_kcontrol_new aiu_acodec_ctrl_mux =
+ SOC_DAPM_ENUM_EXT("ACodec Source", aiu_acodec_ctrl_mux_enum,
+ snd_soc_dapm_get_enum_double,
+ aiu_acodec_ctrl_mux_put_enum);
+
+static const struct snd_kcontrol_new aiu_acodec_ctrl_out_enable =
+ SOC_DAPM_SINGLE_AUTODISABLE("Switch", AIU_ACODEC_CTRL,
+ CTRL_DIN_EN, 1, 0);
+
+static const struct snd_soc_dapm_widget aiu_acodec_ctrl_widgets[] = {
+ SND_SOC_DAPM_MUX("ACODEC SRC", SND_SOC_NOPM, 0, 0,
+ &aiu_acodec_ctrl_mux),
+ SND_SOC_DAPM_SWITCH("ACODEC OUT EN", SND_SOC_NOPM, 0, 0,
+ &aiu_acodec_ctrl_out_enable),
+};
+
+static int aiu_acodec_ctrl_input_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct meson_codec_glue_input *data;
+ int ret;
+
+ ret = meson_codec_glue_input_hw_params(substream, params, dai);
+ if (ret)
+ return ret;
+
+ /* The glue will provide 1 lane out of the 4 to the output */
+ data = meson_codec_glue_input_get_data(dai);
+ data->params.channels_min = min_t(unsigned int, AIU_ACODEC_OUT_CHMAX,
+ data->params.channels_min);
+ data->params.channels_max = min_t(unsigned int, AIU_ACODEC_OUT_CHMAX,
+ data->params.channels_max);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops aiu_acodec_ctrl_input_ops = {
+ .hw_params = aiu_acodec_ctrl_input_hw_params,
+ .set_fmt = meson_codec_glue_input_set_fmt,
+};
+
+static const struct snd_soc_dai_ops aiu_acodec_ctrl_output_ops = {
+ .startup = meson_codec_glue_output_startup,
+};
+
+#define AIU_ACODEC_CTRL_FORMATS \
+ (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+#define AIU_ACODEC_STREAM(xname, xsuffix, xchmax) \
+{ \
+ .stream_name = xname " " xsuffix, \
+ .channels_min = 1, \
+ .channels_max = (xchmax), \
+ .rate_min = 5512, \
+ .rate_max = 192000, \
+ .formats = AIU_ACODEC_CTRL_FORMATS, \
+}
+
+#define AIU_ACODEC_INPUT(xname) { \
+ .name = "ACODEC CTRL " xname, \
+ .playback = AIU_ACODEC_STREAM(xname, "Playback", 8), \
+ .ops = &aiu_acodec_ctrl_input_ops, \
+ .probe = meson_codec_glue_input_dai_probe, \
+ .remove = meson_codec_glue_input_dai_remove, \
+}
+
+#define AIU_ACODEC_OUTPUT(xname) { \
+ .name = "ACODEC CTRL " xname, \
+ .capture = AIU_ACODEC_STREAM(xname, "Capture", AIU_ACODEC_OUT_CHMAX), \
+ .ops = &aiu_acodec_ctrl_output_ops, \
+}
+
+static struct snd_soc_dai_driver aiu_acodec_ctrl_dai_drv[] = {
+ [CTRL_I2S] = AIU_ACODEC_INPUT("ACODEC I2S IN"),
+ [CTRL_PCM] = AIU_ACODEC_INPUT("ACODEC PCM IN"),
+ [CTRL_OUT] = AIU_ACODEC_OUTPUT("ACODEC OUT"),
+};
+
+static const struct snd_soc_dapm_route aiu_acodec_ctrl_routes[] = {
+ { "ACODEC SRC", "I2S", "ACODEC I2S IN Playback" },
+ { "ACODEC SRC", "PCM", "ACODEC PCM IN Playback" },
+ { "ACODEC OUT EN", "Switch", "ACODEC SRC" },
+ { "ACODEC OUT Capture", NULL, "ACODEC OUT EN" },
+};
+
+static const struct snd_kcontrol_new aiu_acodec_ctrl_controls[] = {
+ SOC_SINGLE("ACODEC I2S Lane Select", AIU_ACODEC_CTRL,
+ CTRL_I2S_OUT_LANE_SRC, 3, 0),
+};
+
+static int aiu_acodec_of_xlate_dai_name(struct snd_soc_component *component,
+ struct of_phandle_args *args,
+ const char **dai_name)
+{
+ return aiu_of_xlate_dai_name(component, args, dai_name, AIU_ACODEC);
+}
+
+static int aiu_acodec_ctrl_component_probe(struct snd_soc_component *component)
+{
+ /*
+ * NOTE: Din Skew setting
+ * According to the documentation, the following update adds one delay
+ * to the din line. Without this, the output saturates. This happens
+ * regardless of the link format (i2s or left_j) so it is not clear what
+ * it actually does but it seems to be required
+ */
+ snd_soc_component_update_bits(component, AIU_ACODEC_CTRL,
+ CTRL_DIN_SKEW,
+ FIELD_PREP(CTRL_DIN_SKEW, 2));
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver aiu_acodec_ctrl_component = {
+ .name = "AIU Internal DAC Codec Control",
+ .probe = aiu_acodec_ctrl_component_probe,
+ .controls = aiu_acodec_ctrl_controls,
+ .num_controls = ARRAY_SIZE(aiu_acodec_ctrl_controls),
+ .dapm_widgets = aiu_acodec_ctrl_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(aiu_acodec_ctrl_widgets),
+ .dapm_routes = aiu_acodec_ctrl_routes,
+ .num_dapm_routes = ARRAY_SIZE(aiu_acodec_ctrl_routes),
+ .of_xlate_dai_name = aiu_acodec_of_xlate_dai_name,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+int aiu_acodec_ctrl_register_component(struct device *dev)
+{
+ return snd_soc_register_component(dev, &aiu_acodec_ctrl_component,
+ aiu_acodec_ctrl_dai_drv,
+ ARRAY_SIZE(aiu_acodec_ctrl_dai_drv));
+}
diff --git a/sound/soc/meson/aiu-codec-ctrl.c b/sound/soc/meson/aiu-codec-ctrl.c
new file mode 100644
index 000000000000..4b773d3e8b07
--- /dev/null
+++ b/sound/soc/meson/aiu-codec-ctrl.c
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include <dt-bindings/sound/meson-aiu.h>
+#include "aiu.h"
+#include "meson-codec-glue.h"
+
+#define CTRL_CLK_SEL GENMASK(1, 0)
+#define CTRL_DATA_SEL_SHIFT 4
+#define CTRL_DATA_SEL (0x3 << CTRL_DATA_SEL_SHIFT)
+
+static const char * const aiu_codec_ctrl_mux_texts[] = {
+ "DISABLED", "PCM", "I2S",
+};
+
+static int aiu_codec_ctrl_mux_put_enum(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_kcontrol_component(kcontrol);
+ struct snd_soc_dapm_context *dapm =
+ snd_soc_dapm_kcontrol_dapm(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned int mux, changed;
+
+ mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
+ changed = snd_soc_component_test_bits(component, e->reg,
+ CTRL_DATA_SEL,
+ FIELD_PREP(CTRL_DATA_SEL, mux));
+
+ if (!changed)
+ return 0;
+
+ /* Force disconnect of the mux while updating */
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
+
+ /* Reset the source first */
+ snd_soc_component_update_bits(component, e->reg,
+ CTRL_CLK_SEL |
+ CTRL_DATA_SEL,
+ FIELD_PREP(CTRL_CLK_SEL, 0) |
+ FIELD_PREP(CTRL_DATA_SEL, 0));
+
+ /* Set the appropriate source */
+ snd_soc_component_update_bits(component, e->reg,
+ CTRL_CLK_SEL |
+ CTRL_DATA_SEL,
+ FIELD_PREP(CTRL_CLK_SEL, mux) |
+ FIELD_PREP(CTRL_DATA_SEL, mux));
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+ return 0;
+}
+
+static SOC_ENUM_SINGLE_DECL(aiu_hdmi_ctrl_mux_enum, AIU_HDMI_CLK_DATA_CTRL,
+ CTRL_DATA_SEL_SHIFT,
+ aiu_codec_ctrl_mux_texts);
+
+static const struct snd_kcontrol_new aiu_hdmi_ctrl_mux =
+ SOC_DAPM_ENUM_EXT("HDMI Source", aiu_hdmi_ctrl_mux_enum,
+ snd_soc_dapm_get_enum_double,
+ aiu_codec_ctrl_mux_put_enum);
+
+static const struct snd_soc_dapm_widget aiu_hdmi_ctrl_widgets[] = {
+ SND_SOC_DAPM_MUX("HDMI CTRL SRC", SND_SOC_NOPM, 0, 0,
+ &aiu_hdmi_ctrl_mux),
+};
+
+static const struct snd_soc_dai_ops aiu_codec_ctrl_input_ops = {
+ .hw_params = meson_codec_glue_input_hw_params,
+ .set_fmt = meson_codec_glue_input_set_fmt,
+};
+
+static const struct snd_soc_dai_ops aiu_codec_ctrl_output_ops = {
+ .startup = meson_codec_glue_output_startup,
+};
+
+#define AIU_CODEC_CTRL_FORMATS \
+ (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
+ SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S24_LE | \
+ SNDRV_PCM_FMTBIT_S32_LE)
+
+#define AIU_CODEC_CTRL_STREAM(xname, xsuffix) \
+{ \
+ .stream_name = xname " " xsuffix, \
+ .channels_min = 1, \
+ .channels_max = 8, \
+ .rate_min = 5512, \
+ .rate_max = 192000, \
+ .formats = AIU_CODEC_CTRL_FORMATS, \
+}
+
+#define AIU_CODEC_CTRL_INPUT(xname) { \
+ .name = "CODEC CTRL " xname, \
+ .playback = AIU_CODEC_CTRL_STREAM(xname, "Playback"), \
+ .ops = &aiu_codec_ctrl_input_ops, \
+ .probe = meson_codec_glue_input_dai_probe, \
+ .remove = meson_codec_glue_input_dai_remove, \
+}
+
+#define AIU_CODEC_CTRL_OUTPUT(xname) { \
+ .name = "CODEC CTRL " xname, \
+ .capture = AIU_CODEC_CTRL_STREAM(xname, "Capture"), \
+ .ops = &aiu_codec_ctrl_output_ops, \
+}
+
+static struct snd_soc_dai_driver aiu_hdmi_ctrl_dai_drv[] = {
+ [CTRL_I2S] = AIU_CODEC_CTRL_INPUT("HDMI I2S IN"),
+ [CTRL_PCM] = AIU_CODEC_CTRL_INPUT("HDMI PCM IN"),
+ [CTRL_OUT] = AIU_CODEC_CTRL_OUTPUT("HDMI OUT"),
+};
+
+static const struct snd_soc_dapm_route aiu_hdmi_ctrl_routes[] = {
+ { "HDMI CTRL SRC", "I2S", "HDMI I2S IN Playback" },
+ { "HDMI CTRL SRC", "PCM", "HDMI PCM IN Playback" },
+ { "HDMI OUT Capture", NULL, "HDMI CTRL SRC" },
+};
+
+static int aiu_hdmi_of_xlate_dai_name(struct snd_soc_component *component,
+ struct of_phandle_args *args,
+ const char **dai_name)
+{
+ return aiu_of_xlate_dai_name(component, args, dai_name, AIU_HDMI);
+}
+
+static const struct snd_soc_component_driver aiu_hdmi_ctrl_component = {
+ .name = "AIU HDMI Codec Control",
+ .dapm_widgets = aiu_hdmi_ctrl_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(aiu_hdmi_ctrl_widgets),
+ .dapm_routes = aiu_hdmi_ctrl_routes,
+ .num_dapm_routes = ARRAY_SIZE(aiu_hdmi_ctrl_routes),
+ .of_xlate_dai_name = aiu_hdmi_of_xlate_dai_name,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+int aiu_hdmi_ctrl_register_component(struct device *dev)
+{
+ return snd_soc_register_component(dev, &aiu_hdmi_ctrl_component,
+ aiu_hdmi_ctrl_dai_drv,
+ ARRAY_SIZE(aiu_hdmi_ctrl_dai_drv));
+}
+
diff --git a/sound/soc/meson/aiu-encoder-i2s.c b/sound/soc/meson/aiu-encoder-i2s.c
new file mode 100644
index 000000000000..832e22d275fe
--- /dev/null
+++ b/sound/soc/meson/aiu-encoder-i2s.c
@@ -0,0 +1,365 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "aiu.h"
+
+#define AIU_I2S_SOURCE_DESC_MODE_8CH BIT(0)
+#define AIU_I2S_SOURCE_DESC_MODE_24BIT BIT(5)
+#define AIU_I2S_SOURCE_DESC_MODE_32BIT BIT(9)
+#define AIU_I2S_SOURCE_DESC_MODE_SPLIT BIT(11)
+#define AIU_RST_SOFT_I2S_FAST BIT(0)
+
+#define AIU_I2S_DAC_CFG_MSB_FIRST BIT(2)
+#define AIU_I2S_MISC_HOLD_EN BIT(2)
+#define AIU_CLK_CTRL_I2S_DIV_EN BIT(0)
+#define AIU_CLK_CTRL_I2S_DIV GENMASK(3, 2)
+#define AIU_CLK_CTRL_AOCLK_INVERT BIT(6)
+#define AIU_CLK_CTRL_LRCLK_INVERT BIT(7)
+#define AIU_CLK_CTRL_LRCLK_SKEW GENMASK(9, 8)
+#define AIU_CLK_CTRL_MORE_HDMI_AMCLK BIT(6)
+#define AIU_CLK_CTRL_MORE_I2S_DIV GENMASK(5, 0)
+#define AIU_CODEC_DAC_LRCLK_CTRL_DIV GENMASK(11, 0)
+
+static void aiu_encoder_i2s_divider_enable(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_I2S_DIV_EN,
+ enable ? AIU_CLK_CTRL_I2S_DIV_EN : 0);
+}
+
+static void aiu_encoder_i2s_hold(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_update_bits(component, AIU_I2S_MISC,
+ AIU_I2S_MISC_HOLD_EN,
+ enable ? AIU_I2S_MISC_HOLD_EN : 0);
+}
+
+static int aiu_encoder_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ aiu_encoder_i2s_hold(component, false);
+ return 0;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ aiu_encoder_i2s_hold(component, true);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int aiu_encoder_i2s_setup_desc(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params)
+{
+ /* Always operate in split (classic interleaved) mode */
+ unsigned int desc = AIU_I2S_SOURCE_DESC_MODE_SPLIT;
+ unsigned int val;
+
+ /* Reset required to update the pipeline */
+ snd_soc_component_write(component, AIU_RST_SOFT, AIU_RST_SOFT_I2S_FAST);
+ snd_soc_component_read(component, AIU_I2S_SYNC, &val);
+
+ switch (params_physical_width(params)) {
+ case 16: /* Nothing to do */
+ break;
+
+ case 32:
+ desc |= (AIU_I2S_SOURCE_DESC_MODE_24BIT |
+ AIU_I2S_SOURCE_DESC_MODE_32BIT);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ switch (params_channels(params)) {
+ case 2: /* Nothing to do */
+ break;
+ case 8:
+ desc |= AIU_I2S_SOURCE_DESC_MODE_8CH;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AIU_I2S_SOURCE_DESC,
+ AIU_I2S_SOURCE_DESC_MODE_8CH |
+ AIU_I2S_SOURCE_DESC_MODE_24BIT |
+ AIU_I2S_SOURCE_DESC_MODE_32BIT |
+ AIU_I2S_SOURCE_DESC_MODE_SPLIT,
+ desc);
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_set_legacy_div(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params,
+ unsigned int bs)
+{
+ switch (bs) {
+ case 1:
+ case 2:
+ case 4:
+ case 8:
+ /* These are the only valid legacy dividers */
+ break;
+
+ default:
+ dev_err(component->dev, "Unsupported i2s divider: %u\n", bs);
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_I2S_DIV,
+ FIELD_PREP(AIU_CLK_CTRL_I2S_DIV,
+ __ffs(bs)));
+
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL_MORE,
+ AIU_CLK_CTRL_MORE_I2S_DIV,
+ FIELD_PREP(AIU_CLK_CTRL_MORE_I2S_DIV,
+ 0));
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_set_more_div(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params,
+ unsigned int bs)
+{
+ /*
+ * NOTE: this HW is odd.
+ * In most configuration, the i2s divider is 'mclk / blck'.
+ * However, in 16 bits - 8ch mode, this factor needs to be
+ * increased by 50% to get the correct output rate.
+ * No idea why !
+ */
+ if (params_width(params) == 16 && params_channels(params) == 8) {
+ if (bs % 2) {
+ dev_err(component->dev,
+ "Cannot increase i2s divider by 50%%\n");
+ return -EINVAL;
+ }
+ bs += bs / 2;
+ }
+
+ /* Use CLK_MORE for mclk to bclk divider */
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_I2S_DIV,
+ FIELD_PREP(AIU_CLK_CTRL_I2S_DIV, 0));
+
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL_MORE,
+ AIU_CLK_CTRL_MORE_I2S_DIV,
+ FIELD_PREP(AIU_CLK_CTRL_MORE_I2S_DIV,
+ bs - 1));
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_set_clocks(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+ unsigned int srate = params_rate(params);
+ unsigned int fs, bs;
+ int ret;
+
+ /* Get the oversampling factor */
+ fs = DIV_ROUND_CLOSEST(clk_get_rate(aiu->i2s.clks[MCLK].clk), srate);
+
+ if (fs % 64)
+ return -EINVAL;
+
+ /* Send data MSB first */
+ snd_soc_component_update_bits(component, AIU_I2S_DAC_CFG,
+ AIU_I2S_DAC_CFG_MSB_FIRST,
+ AIU_I2S_DAC_CFG_MSB_FIRST);
+
+ /* Set bclk to lrlck ratio */
+ snd_soc_component_update_bits(component, AIU_CODEC_DAC_LRCLK_CTRL,
+ AIU_CODEC_DAC_LRCLK_CTRL_DIV,
+ FIELD_PREP(AIU_CODEC_DAC_LRCLK_CTRL_DIV,
+ 64 - 1));
+
+ bs = fs / 64;
+
+ if (aiu->platform->has_clk_ctrl_more_i2s_div)
+ ret = aiu_encoder_i2s_set_more_div(component, params, bs);
+ else
+ ret = aiu_encoder_i2s_set_legacy_div(component, params, bs);
+
+ if (ret)
+ return ret;
+
+ /* Make sure amclk is used for HDMI i2s as well */
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL_MORE,
+ AIU_CLK_CTRL_MORE_HDMI_AMCLK,
+ AIU_CLK_CTRL_MORE_HDMI_AMCLK);
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ int ret;
+
+ /* Disable the clock while changing the settings */
+ aiu_encoder_i2s_divider_enable(component, false);
+
+ ret = aiu_encoder_i2s_setup_desc(component, params);
+ if (ret) {
+ dev_err(dai->dev, "setting i2s desc failed\n");
+ return ret;
+ }
+
+ ret = aiu_encoder_i2s_set_clocks(component, params);
+ if (ret) {
+ dev_err(dai->dev, "setting i2s clocks failed\n");
+ return ret;
+ }
+
+ aiu_encoder_i2s_divider_enable(component, true);
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ aiu_encoder_i2s_divider_enable(component, false);
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ unsigned int inv = fmt & SND_SOC_DAIFMT_INV_MASK;
+ unsigned int val = 0;
+ unsigned int skew;
+
+ /* Only CPU Master / Codec Slave supported ATM */
+ if ((fmt & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
+ return -EINVAL;
+
+ if (inv == SND_SOC_DAIFMT_NB_IF ||
+ inv == SND_SOC_DAIFMT_IB_IF)
+ val |= AIU_CLK_CTRL_LRCLK_INVERT;
+
+ if (inv == SND_SOC_DAIFMT_IB_NF ||
+ inv == SND_SOC_DAIFMT_IB_IF)
+ val |= AIU_CLK_CTRL_AOCLK_INVERT;
+
+ /* Signal skew */
+ switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+ case SND_SOC_DAIFMT_I2S:
+ /* Invert sample clock for i2s */
+ val ^= AIU_CLK_CTRL_LRCLK_INVERT;
+ skew = 1;
+ break;
+ case SND_SOC_DAIFMT_LEFT_J:
+ skew = 0;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val |= FIELD_PREP(AIU_CLK_CTRL_LRCLK_SKEW, skew);
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_LRCLK_INVERT |
+ AIU_CLK_CTRL_AOCLK_INVERT |
+ AIU_CLK_CTRL_LRCLK_SKEW,
+ val);
+
+ return 0;
+}
+
+static int aiu_encoder_i2s_set_sysclk(struct snd_soc_dai *dai, int clk_id,
+ unsigned int freq, int dir)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(dai->component);
+ int ret;
+
+ if (WARN_ON(clk_id != 0))
+ return -EINVAL;
+
+ if (dir == SND_SOC_CLOCK_IN)
+ return 0;
+
+ ret = clk_set_rate(aiu->i2s.clks[MCLK].clk, freq);
+ if (ret)
+ dev_err(dai->dev, "Failed to set sysclk to %uHz", freq);
+
+ return ret;
+}
+
+static const unsigned int hw_channels[] = {2, 8};
+static const struct snd_pcm_hw_constraint_list hw_channel_constraints = {
+ .list = hw_channels,
+ .count = ARRAY_SIZE(hw_channels),
+ .mask = 0,
+};
+
+static int aiu_encoder_i2s_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(dai->component);
+ int ret;
+
+ /* Make sure the encoder gets either 2 or 8 channels */
+ ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_CHANNELS,
+ &hw_channel_constraints);
+ if (ret) {
+ dev_err(dai->dev, "adding channels constraints failed\n");
+ return ret;
+ }
+
+ ret = clk_bulk_prepare_enable(aiu->i2s.clk_num, aiu->i2s.clks);
+ if (ret)
+ dev_err(dai->dev, "failed to enable i2s clocks\n");
+
+ return ret;
+}
+
+static void aiu_encoder_i2s_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(dai->component);
+
+ clk_bulk_disable_unprepare(aiu->i2s.clk_num, aiu->i2s.clks);
+}
+
+const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops = {
+ .trigger = aiu_encoder_i2s_trigger,
+ .hw_params = aiu_encoder_i2s_hw_params,
+ .hw_free = aiu_encoder_i2s_hw_free,
+ .set_fmt = aiu_encoder_i2s_set_fmt,
+ .set_sysclk = aiu_encoder_i2s_set_sysclk,
+ .startup = aiu_encoder_i2s_startup,
+ .shutdown = aiu_encoder_i2s_shutdown,
+};
+
diff --git a/sound/soc/meson/aiu-encoder-spdif.c b/sound/soc/meson/aiu-encoder-spdif.c
new file mode 100644
index 000000000000..de850913975f
--- /dev/null
+++ b/sound/soc/meson/aiu-encoder-spdif.c
@@ -0,0 +1,209 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <sound/pcm_params.h>
+#include <sound/pcm_iec958.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "aiu.h"
+
+#define AIU_958_MISC_NON_PCM BIT(0)
+#define AIU_958_MISC_MODE_16BITS BIT(1)
+#define AIU_958_MISC_16BITS_ALIGN GENMASK(6, 5)
+#define AIU_958_MISC_MODE_32BITS BIT(7)
+#define AIU_958_MISC_U_FROM_STREAM BIT(12)
+#define AIU_958_MISC_FORCE_LR BIT(13)
+#define AIU_958_CTRL_HOLD_EN BIT(0)
+#define AIU_CLK_CTRL_958_DIV_EN BIT(1)
+#define AIU_CLK_CTRL_958_DIV GENMASK(5, 4)
+#define AIU_CLK_CTRL_958_DIV_MORE BIT(12)
+
+#define AIU_CS_WORD_LEN 4
+#define AIU_958_INTERNAL_DIV 2
+
+static void
+aiu_encoder_spdif_divider_enable(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_958_DIV_EN,
+ enable ? AIU_CLK_CTRL_958_DIV_EN : 0);
+}
+
+static void aiu_encoder_spdif_hold(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_update_bits(component, AIU_958_CTRL,
+ AIU_958_CTRL_HOLD_EN,
+ enable ? AIU_958_CTRL_HOLD_EN : 0);
+}
+
+static int
+aiu_encoder_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ aiu_encoder_spdif_hold(component, false);
+ return 0;
+
+ case SNDRV_PCM_TRIGGER_STOP:
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ aiu_encoder_spdif_hold(component, true);
+ return 0;
+
+ default:
+ return -EINVAL;
+ }
+}
+
+static int aiu_encoder_spdif_setup_cs_word(struct snd_soc_component *component,
+ struct snd_pcm_hw_params *params)
+{
+ u8 cs[AIU_CS_WORD_LEN];
+ unsigned int val;
+ int ret;
+
+ ret = snd_pcm_create_iec958_consumer_hw_params(params, cs,
+ AIU_CS_WORD_LEN);
+ if (ret < 0)
+ return ret;
+
+ /* Write the 1st half word */
+ val = cs[1] | cs[0] << 8;
+ snd_soc_component_write(component, AIU_958_CHSTAT_L0, val);
+ snd_soc_component_write(component, AIU_958_CHSTAT_R0, val);
+
+ /* Write the 2nd half word */
+ val = cs[3] | cs[2] << 8;
+ snd_soc_component_write(component, AIU_958_CHSTAT_L1, val);
+ snd_soc_component_write(component, AIU_958_CHSTAT_R1, val);
+
+ return 0;
+}
+
+static int aiu_encoder_spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+ unsigned int val = 0, mrate;
+ int ret;
+
+ /* Disable the clock while changing the settings */
+ aiu_encoder_spdif_divider_enable(component, false);
+
+ switch (params_physical_width(params)) {
+ case 16:
+ val |= AIU_958_MISC_MODE_16BITS;
+ val |= FIELD_PREP(AIU_958_MISC_16BITS_ALIGN, 2);
+ break;
+ case 32:
+ val |= AIU_958_MISC_MODE_32BITS;
+ break;
+ default:
+ dev_err(dai->dev, "Unsupport physical width\n");
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AIU_958_MISC,
+ AIU_958_MISC_NON_PCM |
+ AIU_958_MISC_MODE_16BITS |
+ AIU_958_MISC_16BITS_ALIGN |
+ AIU_958_MISC_MODE_32BITS |
+ AIU_958_MISC_FORCE_LR |
+ AIU_958_MISC_U_FROM_STREAM,
+ val);
+
+ /* Set the stream channel status word */
+ ret = aiu_encoder_spdif_setup_cs_word(component, params);
+ if (ret) {
+ dev_err(dai->dev, "failed to set channel status word\n");
+ return ret;
+ }
+
+ snd_soc_component_update_bits(component, AIU_CLK_CTRL,
+ AIU_CLK_CTRL_958_DIV |
+ AIU_CLK_CTRL_958_DIV_MORE,
+ FIELD_PREP(AIU_CLK_CTRL_958_DIV,
+ __ffs(AIU_958_INTERNAL_DIV)));
+
+ /* 2 * 32bits per subframe * 2 channels = 128 */
+ mrate = params_rate(params) * 128 * AIU_958_INTERNAL_DIV;
+ ret = clk_set_rate(aiu->spdif.clks[MCLK].clk, mrate);
+ if (ret) {
+ dev_err(dai->dev, "failed to set mclk rate\n");
+ return ret;
+ }
+
+ aiu_encoder_spdif_divider_enable(component, true);
+
+ return 0;
+}
+
+static int aiu_encoder_spdif_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+
+ aiu_encoder_spdif_divider_enable(component, false);
+
+ return 0;
+}
+
+static int aiu_encoder_spdif_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(dai->component);
+ int ret;
+
+ /*
+ * NOTE: Make sure the spdif block is on its own divider.
+ *
+ * The spdif can be clocked by the i2s master clock or its own
+ * clock. We should (in theory) change the source depending on the
+ * origin of the data.
+ *
+ * However, considering the clocking scheme used on these platforms,
+ * the master clocks will pick the same PLL source when they are
+ * playing from the same FIFO. The clock should be in sync so, it
+ * should not be necessary to reparent the spdif master clock.
+ */
+ ret = clk_set_parent(aiu->spdif.clks[MCLK].clk,
+ aiu->spdif_mclk);
+ if (ret)
+ return ret;
+
+ ret = clk_bulk_prepare_enable(aiu->spdif.clk_num, aiu->spdif.clks);
+ if (ret)
+ dev_err(dai->dev, "failed to enable spdif clocks\n");
+
+ return ret;
+}
+
+static void aiu_encoder_spdif_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(dai->component);
+
+ clk_bulk_disable_unprepare(aiu->spdif.clk_num, aiu->spdif.clks);
+}
+
+const struct snd_soc_dai_ops aiu_encoder_spdif_dai_ops = {
+ .trigger = aiu_encoder_spdif_trigger,
+ .hw_params = aiu_encoder_spdif_hw_params,
+ .hw_free = aiu_encoder_spdif_hw_free,
+ .startup = aiu_encoder_spdif_startup,
+ .shutdown = aiu_encoder_spdif_shutdown,
+};
diff --git a/sound/soc/meson/aiu-fifo-i2s.c b/sound/soc/meson/aiu-fifo-i2s.c
new file mode 100644
index 000000000000..9a5271ce80fe
--- /dev/null
+++ b/sound/soc/meson/aiu-fifo-i2s.c
@@ -0,0 +1,153 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "aiu.h"
+#include "aiu-fifo.h"
+
+#define AIU_I2S_SOURCE_DESC_MODE_8CH BIT(0)
+#define AIU_I2S_SOURCE_DESC_MODE_24BIT BIT(5)
+#define AIU_I2S_SOURCE_DESC_MODE_32BIT BIT(9)
+#define AIU_I2S_SOURCE_DESC_MODE_SPLIT BIT(11)
+#define AIU_MEM_I2S_MASKS_IRQ_BLOCK GENMASK(31, 16)
+#define AIU_MEM_I2S_CONTROL_MODE_16BIT BIT(6)
+#define AIU_MEM_I2S_BUF_CNTL_INIT BIT(0)
+#define AIU_RST_SOFT_I2S_FAST BIT(0)
+
+#define AIU_FIFO_I2S_BLOCK 256
+
+static struct snd_pcm_hardware fifo_i2s_pcm = {
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE),
+ .formats = AIU_FORMATS,
+ .rate_min = 5512,
+ .rate_max = 192000,
+ .channels_min = 2,
+ .channels_max = 8,
+ .period_bytes_min = AIU_FIFO_I2S_BLOCK,
+ .period_bytes_max = AIU_FIFO_I2S_BLOCK * USHRT_MAX,
+ .periods_min = 2,
+ .periods_max = UINT_MAX,
+
+ /* No real justification for this */
+ .buffer_bytes_max = 1 * 1024 * 1024,
+};
+
+static int aiu_fifo_i2s_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ unsigned int val;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ snd_soc_component_write(component, AIU_RST_SOFT,
+ AIU_RST_SOFT_I2S_FAST);
+ snd_soc_component_read(component, AIU_I2S_SYNC, &val);
+ break;
+ }
+
+ return aiu_fifo_trigger(substream, cmd, dai);
+}
+
+static int aiu_fifo_i2s_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ int ret;
+
+ ret = aiu_fifo_prepare(substream, dai);
+ if (ret)
+ return ret;
+
+ snd_soc_component_update_bits(component,
+ AIU_MEM_I2S_BUF_CNTL,
+ AIU_MEM_I2S_BUF_CNTL_INIT,
+ AIU_MEM_I2S_BUF_CNTL_INIT);
+ snd_soc_component_update_bits(component,
+ AIU_MEM_I2S_BUF_CNTL,
+ AIU_MEM_I2S_BUF_CNTL_INIT, 0);
+
+ return 0;
+}
+
+static int aiu_fifo_i2s_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ unsigned int val;
+ int ret;
+
+ ret = aiu_fifo_hw_params(substream, params, dai);
+ if (ret)
+ return ret;
+
+ switch (params_physical_width(params)) {
+ case 16:
+ val = AIU_MEM_I2S_CONTROL_MODE_16BIT;
+ break;
+ case 32:
+ val = 0;
+ break;
+ default:
+ dev_err(dai->dev, "Unsupported physical width %u\n",
+ params_physical_width(params));
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AIU_MEM_I2S_CONTROL,
+ AIU_MEM_I2S_CONTROL_MODE_16BIT,
+ val);
+
+ /* Setup the irq periodicity */
+ val = params_period_bytes(params) / fifo->fifo_block;
+ val = FIELD_PREP(AIU_MEM_I2S_MASKS_IRQ_BLOCK, val);
+ snd_soc_component_update_bits(component, AIU_MEM_I2S_MASKS,
+ AIU_MEM_I2S_MASKS_IRQ_BLOCK, val);
+
+ return 0;
+}
+
+const struct snd_soc_dai_ops aiu_fifo_i2s_dai_ops = {
+ .trigger = aiu_fifo_i2s_trigger,
+ .prepare = aiu_fifo_i2s_prepare,
+ .hw_params = aiu_fifo_i2s_hw_params,
+ .hw_free = aiu_fifo_hw_free,
+ .startup = aiu_fifo_startup,
+ .shutdown = aiu_fifo_shutdown,
+};
+
+int aiu_fifo_i2s_dai_probe(struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+ struct aiu_fifo *fifo;
+ int ret;
+
+ ret = aiu_fifo_dai_probe(dai);
+ if (ret)
+ return ret;
+
+ fifo = dai->playback_dma_data;
+
+ fifo->pcm = &fifo_i2s_pcm;
+ fifo->mem_offset = AIU_MEM_I2S_START;
+ fifo->fifo_block = AIU_FIFO_I2S_BLOCK;
+ fifo->pclk = aiu->i2s.clks[PCLK].clk;
+ fifo->irq = aiu->i2s.irq;
+
+ return 0;
+}
diff --git a/sound/soc/meson/aiu-fifo-spdif.c b/sound/soc/meson/aiu-fifo-spdif.c
new file mode 100644
index 000000000000..44eb6faacf44
--- /dev/null
+++ b/sound/soc/meson/aiu-fifo-spdif.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/clk.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "aiu.h"
+#include "aiu-fifo.h"
+
+#define AIU_IEC958_DCU_FF_CTRL_EN BIT(0)
+#define AIU_IEC958_DCU_FF_CTRL_AUTO_DISABLE BIT(1)
+#define AIU_IEC958_DCU_FF_CTRL_IRQ_MODE GENMASK(3, 2)
+#define AIU_IEC958_DCU_FF_CTRL_IRQ_OUT_THD BIT(2)
+#define AIU_IEC958_DCU_FF_CTRL_IRQ_FRAME_READ BIT(3)
+#define AIU_IEC958_DCU_FF_CTRL_SYNC_HEAD_EN BIT(4)
+#define AIU_IEC958_DCU_FF_CTRL_BYTE_SEEK BIT(5)
+#define AIU_IEC958_DCU_FF_CTRL_CONTINUE BIT(6)
+#define AIU_MEM_IEC958_CONTROL_ENDIAN GENMASK(5, 3)
+#define AIU_MEM_IEC958_CONTROL_RD_DDR BIT(6)
+#define AIU_MEM_IEC958_CONTROL_MODE_16BIT BIT(7)
+#define AIU_MEM_IEC958_CONTROL_MODE_LINEAR BIT(8)
+#define AIU_MEM_IEC958_BUF_CNTL_INIT BIT(0)
+
+#define AIU_FIFO_SPDIF_BLOCK 8
+
+static struct snd_pcm_hardware fifo_spdif_pcm = {
+ .info = (SNDRV_PCM_INFO_INTERLEAVED |
+ SNDRV_PCM_INFO_MMAP |
+ SNDRV_PCM_INFO_MMAP_VALID |
+ SNDRV_PCM_INFO_PAUSE),
+ .formats = AIU_FORMATS,
+ .rate_min = 5512,
+ .rate_max = 192000,
+ .channels_min = 2,
+ .channels_max = 2,
+ .period_bytes_min = AIU_FIFO_SPDIF_BLOCK,
+ .period_bytes_max = AIU_FIFO_SPDIF_BLOCK * USHRT_MAX,
+ .periods_min = 2,
+ .periods_max = UINT_MAX,
+
+ /* No real justification for this */
+ .buffer_bytes_max = 1 * 1024 * 1024,
+};
+
+static void fifo_spdif_dcu_enable(struct snd_soc_component *component,
+ bool enable)
+{
+ snd_soc_component_update_bits(component, AIU_IEC958_DCU_FF_CTRL,
+ AIU_IEC958_DCU_FF_CTRL_EN,
+ enable ? AIU_IEC958_DCU_FF_CTRL_EN : 0);
+}
+
+static int fifo_spdif_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ int ret;
+
+ ret = aiu_fifo_trigger(substream, cmd, dai);
+ if (ret)
+ return ret;
+
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ fifo_spdif_dcu_enable(component, true);
+ break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_STOP:
+ fifo_spdif_dcu_enable(component, false);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int fifo_spdif_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ int ret;
+
+ ret = aiu_fifo_prepare(substream, dai);
+ if (ret)
+ return ret;
+
+ snd_soc_component_update_bits(component,
+ AIU_MEM_IEC958_BUF_CNTL,
+ AIU_MEM_IEC958_BUF_CNTL_INIT,
+ AIU_MEM_IEC958_BUF_CNTL_INIT);
+ snd_soc_component_update_bits(component,
+ AIU_MEM_IEC958_BUF_CNTL,
+ AIU_MEM_IEC958_BUF_CNTL_INIT, 0);
+
+ return 0;
+}
+
+static int fifo_spdif_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ unsigned int val;
+ int ret;
+
+ ret = aiu_fifo_hw_params(substream, params, dai);
+ if (ret)
+ return ret;
+
+ val = AIU_MEM_IEC958_CONTROL_RD_DDR |
+ AIU_MEM_IEC958_CONTROL_MODE_LINEAR;
+
+ switch (params_physical_width(params)) {
+ case 16:
+ val |= AIU_MEM_IEC958_CONTROL_MODE_16BIT;
+ break;
+ case 32:
+ break;
+ default:
+ dev_err(dai->dev, "Unsupported physical width %u\n",
+ params_physical_width(params));
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, AIU_MEM_IEC958_CONTROL,
+ AIU_MEM_IEC958_CONTROL_ENDIAN |
+ AIU_MEM_IEC958_CONTROL_RD_DDR |
+ AIU_MEM_IEC958_CONTROL_MODE_LINEAR |
+ AIU_MEM_IEC958_CONTROL_MODE_16BIT,
+ val);
+
+ /* Number bytes read by the FIFO between each IRQ */
+ snd_soc_component_write(component, AIU_IEC958_BPF,
+ params_period_bytes(params));
+
+ /*
+ * AUTO_DISABLE and SYNC_HEAD are enabled by default but
+ * this should be disabled in PCM (uncompressed) mode
+ */
+ snd_soc_component_update_bits(component, AIU_IEC958_DCU_FF_CTRL,
+ AIU_IEC958_DCU_FF_CTRL_AUTO_DISABLE |
+ AIU_IEC958_DCU_FF_CTRL_IRQ_MODE |
+ AIU_IEC958_DCU_FF_CTRL_SYNC_HEAD_EN,
+ AIU_IEC958_DCU_FF_CTRL_IRQ_FRAME_READ);
+
+ return 0;
+}
+
+const struct snd_soc_dai_ops aiu_fifo_spdif_dai_ops = {
+ .trigger = fifo_spdif_trigger,
+ .prepare = fifo_spdif_prepare,
+ .hw_params = fifo_spdif_hw_params,
+ .hw_free = aiu_fifo_hw_free,
+ .startup = aiu_fifo_startup,
+ .shutdown = aiu_fifo_shutdown,
+};
+
+int aiu_fifo_spdif_dai_probe(struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+ struct aiu_fifo *fifo;
+ int ret;
+
+ ret = aiu_fifo_dai_probe(dai);
+ if (ret)
+ return ret;
+
+ fifo = dai->playback_dma_data;
+
+ fifo->pcm = &fifo_spdif_pcm;
+ fifo->mem_offset = AIU_MEM_IEC958_START;
+ fifo->fifo_block = 1;
+ fifo->pclk = aiu->spdif.clks[PCLK].clk;
+ fifo->irq = aiu->spdif.irq;
+
+ return 0;
+}
diff --git a/sound/soc/meson/aiu-fifo.c b/sound/soc/meson/aiu-fifo.c
new file mode 100644
index 000000000000..d9cede4c33ff
--- /dev/null
+++ b/sound/soc/meson/aiu-fifo.c
@@ -0,0 +1,223 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "aiu-fifo.h"
+
+#define AIU_MEM_START 0x00
+#define AIU_MEM_RD 0x04
+#define AIU_MEM_END 0x08
+#define AIU_MEM_MASKS 0x0c
+#define AIU_MEM_MASK_CH_RD GENMASK(7, 0)
+#define AIU_MEM_MASK_CH_MEM GENMASK(15, 8)
+#define AIU_MEM_CONTROL 0x10
+#define AIU_MEM_CONTROL_INIT BIT(0)
+#define AIU_MEM_CONTROL_FILL_EN BIT(1)
+#define AIU_MEM_CONTROL_EMPTY_EN BIT(2)
+
+static struct snd_soc_dai *aiu_fifo_dai(struct snd_pcm_substream *ss)
+{
+ struct snd_soc_pcm_runtime *rtd = ss->private_data;
+
+ return asoc_rtd_to_cpu(rtd, 0);
+}
+
+snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream)
+{
+ struct snd_soc_dai *dai = aiu_fifo_dai(substream);
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ unsigned int addr;
+
+ snd_soc_component_read(component, fifo->mem_offset + AIU_MEM_RD,
+ &addr);
+
+ return bytes_to_frames(runtime, addr - (unsigned int)runtime->dma_addr);
+}
+
+static void aiu_fifo_enable(struct snd_soc_dai *dai, bool enable)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ unsigned int en_mask = (AIU_MEM_CONTROL_FILL_EN |
+ AIU_MEM_CONTROL_EMPTY_EN);
+
+ snd_soc_component_update_bits(component,
+ fifo->mem_offset + AIU_MEM_CONTROL,
+ en_mask, enable ? en_mask : 0);
+}
+
+int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai)
+{
+ switch (cmd) {
+ case SNDRV_PCM_TRIGGER_START:
+ case SNDRV_PCM_TRIGGER_RESUME:
+ case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+ aiu_fifo_enable(dai, true);
+ break;
+ case SNDRV_PCM_TRIGGER_SUSPEND:
+ case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+ case SNDRV_PCM_TRIGGER_STOP:
+ aiu_fifo_enable(dai, false);
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int aiu_fifo_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_component *component = dai->component;
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+
+ snd_soc_component_update_bits(component,
+ fifo->mem_offset + AIU_MEM_CONTROL,
+ AIU_MEM_CONTROL_INIT,
+ AIU_MEM_CONTROL_INIT);
+ snd_soc_component_update_bits(component,
+ fifo->mem_offset + AIU_MEM_CONTROL,
+ AIU_MEM_CONTROL_INIT, 0);
+ return 0;
+}
+
+int aiu_fifo_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct snd_pcm_runtime *runtime = substream->runtime;
+ struct snd_soc_component *component = dai->component;
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ dma_addr_t end;
+ int ret;
+
+ ret = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params));
+ if (ret < 0)
+ return ret;
+
+ /* Setup the fifo boundaries */
+ end = runtime->dma_addr + runtime->dma_bytes - fifo->fifo_block;
+ snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_START,
+ runtime->dma_addr);
+ snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_RD,
+ runtime->dma_addr);
+ snd_soc_component_write(component, fifo->mem_offset + AIU_MEM_END,
+ end);
+
+ /* Setup the fifo to read all the memory - no skip */
+ snd_soc_component_update_bits(component,
+ fifo->mem_offset + AIU_MEM_MASKS,
+ AIU_MEM_MASK_CH_RD | AIU_MEM_MASK_CH_MEM,
+ FIELD_PREP(AIU_MEM_MASK_CH_RD, 0xff) |
+ FIELD_PREP(AIU_MEM_MASK_CH_MEM, 0xff));
+
+ return 0;
+}
+
+int aiu_fifo_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ return snd_pcm_lib_free_pages(substream);
+}
+
+static irqreturn_t aiu_fifo_isr(int irq, void *dev_id)
+{
+ struct snd_pcm_substream *playback = dev_id;
+
+ snd_pcm_period_elapsed(playback);
+
+ return IRQ_HANDLED;
+}
+
+int aiu_fifo_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ int ret;
+
+ snd_soc_set_runtime_hwparams(substream, fifo->pcm);
+
+ /*
+ * Make sure the buffer and period size are multiple of the fifo burst
+ * size
+ */
+ ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_BUFFER_BYTES,
+ fifo->fifo_block);
+ if (ret)
+ return ret;
+
+ ret = snd_pcm_hw_constraint_step(substream->runtime, 0,
+ SNDRV_PCM_HW_PARAM_PERIOD_BYTES,
+ fifo->fifo_block);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(fifo->pclk);
+ if (ret)
+ return ret;
+
+ ret = request_irq(fifo->irq, aiu_fifo_isr, 0, dev_name(dai->dev),
+ substream);
+ if (ret)
+ clk_disable_unprepare(fifo->pclk);
+
+ return ret;
+}
+
+void aiu_fifo_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+
+ free_irq(fifo->irq, substream);
+ clk_disable_unprepare(fifo->pclk);
+}
+
+int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai)
+{
+ struct snd_pcm_substream *substream =
+ rtd->pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream;
+ struct snd_card *card = rtd->card->snd_card;
+ struct aiu_fifo *fifo = dai->playback_dma_data;
+ size_t size = fifo->pcm->buffer_bytes_max;
+
+ snd_pcm_lib_preallocate_pages(substream,
+ SNDRV_DMA_TYPE_DEV,
+ card->dev, size, size);
+
+ return 0;
+}
+
+int aiu_fifo_dai_probe(struct snd_soc_dai *dai)
+{
+ struct aiu_fifo *fifo;
+
+ fifo = kzalloc(sizeof(*fifo), GFP_KERNEL);
+ if (!fifo)
+ return -ENOMEM;
+
+ dai->playback_dma_data = fifo;
+
+ return 0;
+}
+
+int aiu_fifo_dai_remove(struct snd_soc_dai *dai)
+{
+ kfree(dai->playback_dma_data);
+
+ return 0;
+}
+
diff --git a/sound/soc/meson/aiu-fifo.h b/sound/soc/meson/aiu-fifo.h
new file mode 100644
index 000000000000..42ce266677cc
--- /dev/null
+++ b/sound/soc/meson/aiu-fifo.h
@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright (c) 2020 BayLibre, SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _MESON_AIU_FIFO_H
+#define _MESON_AIU_FIFO_H
+
+struct snd_pcm_hardware;
+struct snd_soc_component_driver;
+struct snd_soc_dai_driver;
+struct clk;
+struct snd_pcm_ops;
+struct snd_pcm_substream;
+struct snd_soc_dai;
+struct snd_pcm_hw_params;
+struct platform_device;
+
+struct aiu_fifo {
+ struct snd_pcm_hardware *pcm;
+ unsigned int mem_offset;
+ unsigned int fifo_block;
+ struct clk *pclk;
+ int irq;
+};
+
+int aiu_fifo_dai_probe(struct snd_soc_dai *dai);
+int aiu_fifo_dai_remove(struct snd_soc_dai *dai);
+
+snd_pcm_uframes_t aiu_fifo_pointer(struct snd_soc_component *component,
+ struct snd_pcm_substream *substream);
+
+int aiu_fifo_trigger(struct snd_pcm_substream *substream, int cmd,
+ struct snd_soc_dai *dai);
+int aiu_fifo_prepare(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+int aiu_fifo_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai);
+int aiu_fifo_hw_free(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+int aiu_fifo_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+void aiu_fifo_shutdown(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+int aiu_fifo_pcm_new(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_dai *dai);
+
+#endif /* _MESON_AIU_FIFO_H */
diff --git a/sound/soc/meson/aiu.c b/sound/soc/meson/aiu.c
new file mode 100644
index 000000000000..dc35ca79021c
--- /dev/null
+++ b/sound/soc/meson/aiu.c
@@ -0,0 +1,388 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/regmap.h>
+#include <linux/reset.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include <dt-bindings/sound/meson-aiu.h>
+#include "aiu.h"
+#include "aiu-fifo.h"
+
+#define AIU_I2S_MISC_958_SRC_SHIFT 3
+
+static const char * const aiu_spdif_encode_sel_texts[] = {
+ "SPDIF", "I2S",
+};
+
+static SOC_ENUM_SINGLE_DECL(aiu_spdif_encode_sel_enum, AIU_I2S_MISC,
+ AIU_I2S_MISC_958_SRC_SHIFT,
+ aiu_spdif_encode_sel_texts);
+
+static const struct snd_kcontrol_new aiu_spdif_encode_mux =
+ SOC_DAPM_ENUM("SPDIF Buffer Src", aiu_spdif_encode_sel_enum);
+
+static const struct snd_soc_dapm_widget aiu_cpu_dapm_widgets[] = {
+ SND_SOC_DAPM_MUX("SPDIF SRC SEL", SND_SOC_NOPM, 0, 0,
+ &aiu_spdif_encode_mux),
+};
+
+static const struct snd_soc_dapm_route aiu_cpu_dapm_routes[] = {
+ { "I2S Encoder Playback", NULL, "I2S FIFO Playback" },
+ { "SPDIF SRC SEL", "SPDIF", "SPDIF FIFO Playback" },
+ { "SPDIF SRC SEL", "I2S", "I2S FIFO Playback" },
+ { "SPDIF Encoder Playback", NULL, "SPDIF SRC SEL" },
+};
+
+int aiu_of_xlate_dai_name(struct snd_soc_component *component,
+ struct of_phandle_args *args,
+ const char **dai_name,
+ unsigned int component_id)
+{
+ struct snd_soc_dai *dai;
+ int id;
+
+ if (args->args_count != 2)
+ return -EINVAL;
+
+ if (args->args[0] != component_id)
+ return -EINVAL;
+
+ id = args->args[1];
+
+ if (id < 0 || id >= component->num_dai)
+ return -EINVAL;
+
+ for_each_component_dais(component, dai) {
+ if (id == 0)
+ break;
+ id--;
+ }
+
+ *dai_name = dai->driver->name;
+
+ return 0;
+}
+
+static int aiu_cpu_of_xlate_dai_name(struct snd_soc_component *component,
+ struct of_phandle_args *args,
+ const char **dai_name)
+{
+ return aiu_of_xlate_dai_name(component, args, dai_name, AIU_CPU);
+}
+
+static int aiu_cpu_component_probe(struct snd_soc_component *component)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+
+ /* Required for the SPDIF Source control operation */
+ return clk_prepare_enable(aiu->i2s.clks[PCLK].clk);
+}
+
+static void aiu_cpu_component_remove(struct snd_soc_component *component)
+{
+ struct aiu *aiu = snd_soc_component_get_drvdata(component);
+
+ clk_disable_unprepare(aiu->i2s.clks[PCLK].clk);
+}
+
+static const struct snd_soc_component_driver aiu_cpu_component = {
+ .name = "AIU CPU",
+ .dapm_widgets = aiu_cpu_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(aiu_cpu_dapm_widgets),
+ .dapm_routes = aiu_cpu_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(aiu_cpu_dapm_routes),
+ .of_xlate_dai_name = aiu_cpu_of_xlate_dai_name,
+ .pointer = aiu_fifo_pointer,
+ .probe = aiu_cpu_component_probe,
+ .remove = aiu_cpu_component_remove,
+};
+
+static struct snd_soc_dai_driver aiu_cpu_dai_drv[] = {
+ [CPU_I2S_FIFO] = {
+ .name = "I2S FIFO",
+ .playback = {
+ .stream_name = "I2S FIFO Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ .rate_min = 5512,
+ .rate_max = 192000,
+ .formats = AIU_FORMATS,
+ },
+ .ops = &aiu_fifo_i2s_dai_ops,
+ .pcm_new = aiu_fifo_pcm_new,
+ .probe = aiu_fifo_i2s_dai_probe,
+ .remove = aiu_fifo_dai_remove,
+ },
+ [CPU_SPDIF_FIFO] = {
+ .name = "SPDIF FIFO",
+ .playback = {
+ .stream_name = "SPDIF FIFO Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ .rate_min = 5512,
+ .rate_max = 192000,
+ .formats = AIU_FORMATS,
+ },
+ .ops = &aiu_fifo_spdif_dai_ops,
+ .pcm_new = aiu_fifo_pcm_new,
+ .probe = aiu_fifo_spdif_dai_probe,
+ .remove = aiu_fifo_dai_remove,
+ },
+ [CPU_I2S_ENCODER] = {
+ .name = "I2S Encoder",
+ .playback = {
+ .stream_name = "I2S Encoder Playback",
+ .channels_min = 2,
+ .channels_max = 8,
+ .rates = SNDRV_PCM_RATE_8000_192000,
+ .formats = AIU_FORMATS,
+ },
+ .ops = &aiu_encoder_i2s_dai_ops,
+ },
+ [CPU_SPDIF_ENCODER] = {
+ .name = "SPDIF Encoder",
+ .playback = {
+ .stream_name = "SPDIF Encoder Playback",
+ .channels_min = 2,
+ .channels_max = 2,
+ .rates = (SNDRV_PCM_RATE_32000 |
+ SNDRV_PCM_RATE_44100 |
+ SNDRV_PCM_RATE_48000 |
+ SNDRV_PCM_RATE_88200 |
+ SNDRV_PCM_RATE_96000 |
+ SNDRV_PCM_RATE_176400 |
+ SNDRV_PCM_RATE_192000),
+ .formats = AIU_FORMATS,
+ },
+ .ops = &aiu_encoder_spdif_dai_ops,
+ }
+};
+
+static const struct regmap_config aiu_regmap_cfg = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+ .max_register = 0x2ac,
+};
+
+static int aiu_clk_bulk_get(struct device *dev,
+ const char * const *ids,
+ unsigned int num,
+ struct aiu_interface *interface)
+{
+ struct clk_bulk_data *clks;
+ int i, ret;
+
+ clks = devm_kcalloc(dev, num, sizeof(*clks), GFP_KERNEL);
+ if (!clks)
+ return -ENOMEM;
+
+ for (i = 0; i < num; i++)
+ clks[i].id = ids[i];
+
+ ret = devm_clk_bulk_get(dev, num, clks);
+ if (ret < 0)
+ return ret;
+
+ interface->clks = clks;
+ interface->clk_num = num;
+ return 0;
+}
+
+static const char * const aiu_i2s_ids[] = {
+ [PCLK] = "i2s_pclk",
+ [AOCLK] = "i2s_aoclk",
+ [MCLK] = "i2s_mclk",
+ [MIXER] = "i2s_mixer",
+};
+
+static const char * const aiu_spdif_ids[] = {
+ [PCLK] = "spdif_pclk",
+ [AOCLK] = "spdif_aoclk",
+ [MCLK] = "spdif_mclk_sel"
+};
+
+static int aiu_clk_get(struct device *dev)
+{
+ struct aiu *aiu = dev_get_drvdata(dev);
+ int ret;
+
+ aiu->pclk = devm_clk_get(dev, "pclk");
+ if (IS_ERR(aiu->pclk)) {
+ if (PTR_ERR(aiu->pclk) != -EPROBE_DEFER)
+ dev_err(dev, "Can't get the aiu pclk\n");
+ return PTR_ERR(aiu->pclk);
+ }
+
+ aiu->spdif_mclk = devm_clk_get(dev, "spdif_mclk");
+ if (IS_ERR(aiu->spdif_mclk)) {
+ if (PTR_ERR(aiu->spdif_mclk) != -EPROBE_DEFER)
+ dev_err(dev, "Can't get the aiu spdif master clock\n");
+ return PTR_ERR(aiu->spdif_mclk);
+ }
+
+ ret = aiu_clk_bulk_get(dev, aiu_i2s_ids, ARRAY_SIZE(aiu_i2s_ids),
+ &aiu->i2s);
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Can't get the i2s clocks\n");
+ return ret;
+ }
+
+ ret = aiu_clk_bulk_get(dev, aiu_spdif_ids, ARRAY_SIZE(aiu_spdif_ids),
+ &aiu->spdif);
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Can't get the spdif clocks\n");
+ return ret;
+ }
+
+ ret = clk_prepare_enable(aiu->pclk);
+ if (ret) {
+ dev_err(dev, "peripheral clock enable failed\n");
+ return ret;
+ }
+
+ ret = devm_add_action_or_reset(dev,
+ (void(*)(void *))clk_disable_unprepare,
+ aiu->pclk);
+ if (ret)
+ dev_err(dev, "failed to add reset action on pclk");
+
+ return ret;
+}
+
+static int aiu_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ void __iomem *regs;
+ struct regmap *map;
+ struct aiu *aiu;
+ int ret;
+
+ aiu = devm_kzalloc(dev, sizeof(*aiu), GFP_KERNEL);
+ if (!aiu)
+ return -ENOMEM;
+
+ aiu->platform = device_get_match_data(dev);
+ if (!aiu->platform)
+ return -ENODEV;
+
+ platform_set_drvdata(pdev, aiu);
+
+ ret = device_reset(dev);
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(dev, "Failed to reset device\n");
+ return ret;
+ }
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ map = devm_regmap_init_mmio(dev, regs, &aiu_regmap_cfg);
+ if (IS_ERR(map)) {
+ dev_err(dev, "failed to init regmap: %ld\n",
+ PTR_ERR(map));
+ return PTR_ERR(map);
+ }
+
+ aiu->i2s.irq = platform_get_irq_byname(pdev, "i2s");
+ if (aiu->i2s.irq < 0)
+ return aiu->i2s.irq;
+
+ aiu->spdif.irq = platform_get_irq_byname(pdev, "spdif");
+ if (aiu->spdif.irq < 0)
+ return aiu->spdif.irq;
+
+ ret = aiu_clk_get(dev);
+ if (ret)
+ return ret;
+
+ /* Register the cpu component of the aiu */
+ ret = snd_soc_register_component(dev, &aiu_cpu_component,
+ aiu_cpu_dai_drv,
+ ARRAY_SIZE(aiu_cpu_dai_drv));
+ if (ret) {
+ dev_err(dev, "Failed to register cpu component\n");
+ return ret;
+ }
+
+ /* Register the hdmi codec control component */
+ ret = aiu_hdmi_ctrl_register_component(dev);
+ if (ret) {
+ dev_err(dev, "Failed to register hdmi control component\n");
+ goto err;
+ }
+
+ /* Register the internal dac control component on gxl */
+ if (aiu->platform->has_acodec) {
+ ret = aiu_acodec_ctrl_register_component(dev);
+ if (ret) {
+ dev_err(dev,
+ "Failed to register acodec control component\n");
+ goto err;
+ }
+ }
+
+ return 0;
+err:
+ snd_soc_unregister_component(dev);
+ return ret;
+}
+
+static int aiu_remove(struct platform_device *pdev)
+{
+ snd_soc_unregister_component(&pdev->dev);
+
+ return 0;
+}
+
+static const struct aiu_platform_data aiu_gxbb_pdata = {
+ .has_acodec = false,
+ .has_clk_ctrl_more_i2s_div = true,
+};
+
+static const struct aiu_platform_data aiu_gxl_pdata = {
+ .has_acodec = true,
+ .has_clk_ctrl_more_i2s_div = true,
+};
+
+static const struct aiu_platform_data aiu_meson8_pdata = {
+ .has_acodec = false,
+ .has_clk_ctrl_more_i2s_div = false,
+};
+
+static const struct of_device_id aiu_of_match[] = {
+ { .compatible = "amlogic,aiu-gxbb", .data = &aiu_gxbb_pdata },
+ { .compatible = "amlogic,aiu-gxl", .data = &aiu_gxl_pdata },
+ { .compatible = "amlogic,aiu-meson8", .data = &aiu_meson8_pdata },
+ { .compatible = "amlogic,aiu-meson8b", .data = &aiu_meson8_pdata },
+ {}
+};
+MODULE_DEVICE_TABLE(of, aiu_of_match);
+
+static struct platform_driver aiu_pdrv = {
+ .probe = aiu_probe,
+ .remove = aiu_remove,
+ .driver = {
+ .name = "meson-aiu",
+ .of_match_table = aiu_of_match,
+ },
+};
+module_platform_driver(aiu_pdrv);
+
+MODULE_DESCRIPTION("Meson AIU Driver");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/meson/aiu.h b/sound/soc/meson/aiu.h
new file mode 100644
index 000000000000..87aa19ac4af3
--- /dev/null
+++ b/sound/soc/meson/aiu.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
+/*
+ * Copyright (c) 2018 BayLibre, SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _MESON_AIU_H
+#define _MESON_AIU_H
+
+struct clk;
+struct clk_bulk_data;
+struct device;
+struct of_phandle_args;
+struct snd_soc_dai;
+struct snd_soc_dai_ops;
+
+enum aiu_clk_ids {
+ PCLK = 0,
+ AOCLK,
+ MCLK,
+ MIXER
+};
+
+struct aiu_interface {
+ struct clk_bulk_data *clks;
+ unsigned int clk_num;
+ int irq;
+};
+
+struct aiu_platform_data {
+ bool has_acodec;
+ bool has_clk_ctrl_more_i2s_div;
+};
+
+struct aiu {
+ struct clk *pclk;
+ struct clk *spdif_mclk;
+ struct aiu_interface i2s;
+ struct aiu_interface spdif;
+ const struct aiu_platform_data *platform;
+};
+
+#define AIU_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
+ SNDRV_PCM_FMTBIT_S20_LE | \
+ SNDRV_PCM_FMTBIT_S24_LE)
+
+int aiu_of_xlate_dai_name(struct snd_soc_component *component,
+ struct of_phandle_args *args,
+ const char **dai_name,
+ unsigned int component_id);
+
+int aiu_hdmi_ctrl_register_component(struct device *dev);
+int aiu_acodec_ctrl_register_component(struct device *dev);
+
+int aiu_fifo_i2s_dai_probe(struct snd_soc_dai *dai);
+int aiu_fifo_spdif_dai_probe(struct snd_soc_dai *dai);
+
+extern const struct snd_soc_dai_ops aiu_fifo_i2s_dai_ops;
+extern const struct snd_soc_dai_ops aiu_fifo_spdif_dai_ops;
+extern const struct snd_soc_dai_ops aiu_encoder_i2s_dai_ops;
+extern const struct snd_soc_dai_ops aiu_encoder_spdif_dai_ops;
+
+#define AIU_IEC958_BPF 0x000
+#define AIU_958_MISC 0x010
+#define AIU_IEC958_DCU_FF_CTRL 0x01c
+#define AIU_958_CHSTAT_L0 0x020
+#define AIU_958_CHSTAT_L1 0x024
+#define AIU_958_CTRL 0x028
+#define AIU_I2S_SOURCE_DESC 0x034
+#define AIU_I2S_DAC_CFG 0x040
+#define AIU_I2S_SYNC 0x044
+#define AIU_I2S_MISC 0x048
+#define AIU_RST_SOFT 0x054
+#define AIU_CLK_CTRL 0x058
+#define AIU_CLK_CTRL_MORE 0x064
+#define AIU_CODEC_DAC_LRCLK_CTRL 0x0a0
+#define AIU_HDMI_CLK_DATA_CTRL 0x0a8
+#define AIU_ACODEC_CTRL 0x0b0
+#define AIU_958_CHSTAT_R0 0x0c0
+#define AIU_958_CHSTAT_R1 0x0c4
+#define AIU_MEM_I2S_START 0x180
+#define AIU_MEM_I2S_MASKS 0x18c
+#define AIU_MEM_I2S_CONTROL 0x190
+#define AIU_MEM_IEC958_START 0x194
+#define AIU_MEM_IEC958_CONTROL 0x1a4
+#define AIU_MEM_I2S_BUF_CNTL 0x1d8
+#define AIU_MEM_IEC958_BUF_CNTL 0x1fc
+
+#endif /* _MESON_AIU_H */
diff --git a/sound/soc/meson/axg-card.c b/sound/soc/meson/axg-card.c
index 1f698adde506..af46845f4ef2 100644
--- a/sound/soc/meson/axg-card.c
+++ b/sound/soc/meson/axg-card.c
@@ -9,11 +9,7 @@
#include <sound/soc-dai.h>
#include "axg-tdm.h"
-
-struct axg_card {
- struct snd_soc_card card;
- void **link_data;
-};
+#include "meson-card.h"
struct axg_dai_link_tdm_mask {
u32 tx;
@@ -41,161 +37,15 @@ static const struct snd_soc_pcm_stream codec_params = {
.channels_max = 8,
};
-#define PREFIX "amlogic,"
-
-static int axg_card_reallocate_links(struct axg_card *priv,
- unsigned int num_links)
-{
- struct snd_soc_dai_link *links;
- void **ldata;
-
- links = krealloc(priv->card.dai_link,
- num_links * sizeof(*priv->card.dai_link),
- GFP_KERNEL | __GFP_ZERO);
- ldata = krealloc(priv->link_data,
- num_links * sizeof(*priv->link_data),
- GFP_KERNEL | __GFP_ZERO);
-
- if (!links || !ldata) {
- dev_err(priv->card.dev, "failed to allocate links\n");
- return -ENOMEM;
- }
-
- priv->card.dai_link = links;
- priv->link_data = ldata;
- priv->card.num_links = num_links;
- return 0;
-}
-
-static int axg_card_parse_dai(struct snd_soc_card *card,
- struct device_node *node,
- struct device_node **dai_of_node,
- const char **dai_name)
-{
- struct of_phandle_args args;
- int ret;
-
- if (!dai_name || !dai_of_node || !node)
- return -EINVAL;
-
- ret = of_parse_phandle_with_args(node, "sound-dai",
- "#sound-dai-cells", 0, &args);
- if (ret) {
- if (ret != -EPROBE_DEFER)
- dev_err(card->dev, "can't parse dai %d\n", ret);
- return ret;
- }
- *dai_of_node = args.np;
-
- return snd_soc_get_dai_name(&args, dai_name);
-}
-
-static int axg_card_set_link_name(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- struct device_node *node,
- const char *prefix)
-{
- char *name = devm_kasprintf(card->dev, GFP_KERNEL, "%s.%s",
- prefix, node->full_name);
- if (!name)
- return -ENOMEM;
-
- link->name = name;
- link->stream_name = name;
-
- return 0;
-}
-
-static void axg_card_clean_references(struct axg_card *priv)
-{
- struct snd_soc_card *card = &priv->card;
- struct snd_soc_dai_link *link;
- struct snd_soc_dai_link_component *codec;
- struct snd_soc_aux_dev *aux;
- int i, j;
-
- if (card->dai_link) {
- for_each_card_prelinks(card, i, link) {
- if (link->cpus)
- of_node_put(link->cpus->of_node);
- for_each_link_codecs(link, j, codec)
- of_node_put(codec->of_node);
- }
- }
-
- if (card->aux_dev) {
- for_each_card_pre_auxs(card, i, aux)
- of_node_put(aux->dlc.of_node);
- }
-
- kfree(card->dai_link);
- kfree(priv->link_data);
-}
-
-static int axg_card_add_aux_devices(struct snd_soc_card *card)
-{
- struct device_node *node = card->dev->of_node;
- struct snd_soc_aux_dev *aux;
- int num, i;
-
- num = of_count_phandle_with_args(node, "audio-aux-devs", NULL);
- if (num == -ENOENT) {
- /*
- * It is ok to have no auxiliary devices but for this card it
- * is a strange situtation. Let's warn the about it.
- */
- dev_warn(card->dev, "card has no auxiliary devices\n");
- return 0;
- } else if (num < 0) {
- dev_err(card->dev, "error getting auxiliary devices: %d\n",
- num);
- return num;
- }
-
- aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL);
- if (!aux)
- return -ENOMEM;
- card->aux_dev = aux;
- card->num_aux_devs = num;
-
- for_each_card_pre_auxs(card, i, aux) {
- aux->dlc.of_node =
- of_parse_phandle(node, "audio-aux-devs", i);
- if (!aux->dlc.of_node)
- return -EINVAL;
- }
-
- return 0;
-}
-
static int axg_card_tdm_be_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
- struct snd_soc_dai *codec_dai;
- unsigned int mclk;
- int ret, i;
-
- if (be->mclk_fs) {
- mclk = params_rate(params) * be->mclk_fs;
-
- for_each_rtd_codec_dai(rtd, i, codec_dai) {
- ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
- SND_SOC_CLOCK_IN);
- if (ret && ret != -ENOTSUPP)
- return ret;
- }
-
- ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, 0, mclk,
- SND_SOC_CLOCK_OUT);
- if (ret && ret != -ENOTSUPP)
- return ret;
- }
- return 0;
+ return meson_card_i2s_set_sysclk(substream, params, be->mclk_fs);
}
static const struct snd_soc_ops axg_card_tdm_be_ops = {
@@ -204,13 +54,13 @@ static const struct snd_soc_ops axg_card_tdm_be_ops = {
static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
struct snd_soc_dai *codec_dai;
int ret, i;
- for_each_rtd_codec_dai(rtd, i, codec_dai) {
+ for_each_rtd_codec_dais(rtd, i, codec_dai) {
ret = snd_soc_dai_set_tdm_slot(codec_dai,
be->codec_masks[i].tx,
be->codec_masks[i].rx,
@@ -222,10 +72,10 @@ static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd)
}
}
- ret = axg_tdm_set_tdm_slots(rtd->cpu_dai, be->tx_mask, be->rx_mask,
+ ret = axg_tdm_set_tdm_slots(asoc_rtd_to_cpu(rtd, 0), be->tx_mask, be->rx_mask,
be->slots, be->slot_width);
if (ret) {
- dev_err(rtd->cpu_dai->dev, "setting tdm link slots failed\n");
+ dev_err(asoc_rtd_to_cpu(rtd, 0)->dev, "setting tdm link slots failed\n");
return ret;
}
@@ -234,16 +84,16 @@ static int axg_card_tdm_dai_init(struct snd_soc_pcm_runtime *rtd)
static int axg_card_tdm_dai_lb_init(struct snd_soc_pcm_runtime *rtd)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
struct axg_dai_link_tdm_data *be =
(struct axg_dai_link_tdm_data *)priv->link_data[rtd->num];
int ret;
/* The loopback rx_mask is the pad tx_mask */
- ret = axg_tdm_set_tdm_slots(rtd->cpu_dai, NULL, be->tx_mask,
+ ret = axg_tdm_set_tdm_slots(asoc_rtd_to_cpu(rtd, 0), NULL, be->tx_mask,
be->slots, be->slot_width);
if (ret) {
- dev_err(rtd->cpu_dai->dev, "setting tdm link slots failed\n");
+ dev_err(asoc_rtd_to_cpu(rtd, 0)->dev, "setting tdm link slots failed\n");
return ret;
}
@@ -253,14 +103,14 @@ static int axg_card_tdm_dai_lb_init(struct snd_soc_pcm_runtime *rtd)
static int axg_card_add_tdm_loopback(struct snd_soc_card *card,
int *index)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_dai_link *pad = &card->dai_link[*index];
struct snd_soc_dai_link *lb;
struct snd_soc_dai_link_component *dlc;
int ret;
/* extend links */
- ret = axg_card_reallocate_links(priv, card->num_links + 1);
+ ret = meson_card_reallocate_links(card, card->num_links + 1);
if (ret)
return ret;
@@ -304,32 +154,6 @@ static int axg_card_add_tdm_loopback(struct snd_soc_card *card,
return 0;
}
-static unsigned int axg_card_parse_daifmt(struct device_node *node,
- struct device_node *cpu_node)
-{
- struct device_node *bitclkmaster = NULL;
- struct device_node *framemaster = NULL;
- unsigned int daifmt;
-
- daifmt = snd_soc_of_parse_daifmt(node, PREFIX,
- &bitclkmaster, &framemaster);
- daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
-
- /* If no master is provided, default to cpu master */
- if (!bitclkmaster || bitclkmaster == cpu_node) {
- daifmt |= (!framemaster || framemaster == cpu_node) ?
- SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBS_CFM;
- } else {
- daifmt |= (!framemaster || framemaster == cpu_node) ?
- SND_SOC_DAIFMT_CBM_CFS : SND_SOC_DAIFMT_CBM_CFM;
- }
-
- of_node_put(bitclkmaster);
- of_node_put(framemaster);
-
- return daifmt;
-}
-
static int axg_card_parse_cpu_tdm_slots(struct snd_soc_card *card,
struct snd_soc_dai_link *link,
struct device_node *node,
@@ -424,7 +248,7 @@ static int axg_card_parse_tdm(struct snd_soc_card *card,
struct device_node *node,
int *index)
{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
struct snd_soc_dai_link *link = &card->dai_link[*index];
struct axg_dai_link_tdm_data *be;
int ret;
@@ -438,7 +262,7 @@ static int axg_card_parse_tdm(struct snd_soc_card *card,
/* Setup tdm link */
link->ops = &axg_card_tdm_be_ops;
link->init = axg_card_tdm_dai_init;
- link->dai_fmt = axg_card_parse_daifmt(node, link->cpus->of_node);
+ link->dai_fmt = meson_card_parse_daifmt(node, link->cpus->of_node);
of_property_read_u32(node, "mclk-fs", &be->mclk_fs);
@@ -462,97 +286,25 @@ static int axg_card_parse_tdm(struct snd_soc_card *card,
return 0;
}
-static int axg_card_set_be_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- struct device_node *node)
-{
- struct snd_soc_dai_link_component *codec;
- struct device_node *np;
- int ret, num_codecs;
-
- link->no_pcm = 1;
- link->dpcm_playback = 1;
- link->dpcm_capture = 1;
-
- num_codecs = of_get_child_count(node);
- if (!num_codecs) {
- dev_err(card->dev, "be link %s has no codec\n",
- node->full_name);
- return -EINVAL;
- }
-
- codec = devm_kcalloc(card->dev, num_codecs, sizeof(*codec), GFP_KERNEL);
- if (!codec)
- return -ENOMEM;
-
- link->codecs = codec;
- link->num_codecs = num_codecs;
-
- for_each_child_of_node(node, np) {
- ret = axg_card_parse_dai(card, np, &codec->of_node,
- &codec->dai_name);
- if (ret) {
- of_node_put(np);
- return ret;
- }
-
- codec++;
- }
-
- ret = axg_card_set_link_name(card, link, node, "be");
- if (ret)
- dev_err(card->dev, "error setting %pOFn link name\n", np);
-
- return ret;
-}
-
-static int axg_card_set_fe_link(struct snd_soc_card *card,
- struct snd_soc_dai_link *link,
- struct device_node *node,
- bool is_playback)
-{
- struct snd_soc_dai_link_component *codec;
-
- codec = devm_kzalloc(card->dev, sizeof(*codec), GFP_KERNEL);
- if (!codec)
- return -ENOMEM;
-
- link->codecs = codec;
- link->num_codecs = 1;
-
- link->dynamic = 1;
- link->dpcm_merged_format = 1;
- link->dpcm_merged_chan = 1;
- link->dpcm_merged_rate = 1;
- link->codecs->dai_name = "snd-soc-dummy-dai";
- link->codecs->name = "snd-soc-dummy";
-
- if (is_playback)
- link->dpcm_playback = 1;
- else
- link->dpcm_capture = 1;
-
- return axg_card_set_link_name(card, link, node, "fe");
-}
-
static int axg_card_cpu_is_capture_fe(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-toddr");
+ return of_device_is_compatible(np, DT_PREFIX "axg-toddr");
}
static int axg_card_cpu_is_playback_fe(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-frddr");
+ return of_device_is_compatible(np, DT_PREFIX "axg-frddr");
}
static int axg_card_cpu_is_tdm_iface(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "axg-tdm-iface");
+ return of_device_is_compatible(np, DT_PREFIX "axg-tdm-iface");
}
static int axg_card_cpu_is_codec(struct device_node *np)
{
- return of_device_is_compatible(np, PREFIX "g12a-tohdmitx");
+ return of_device_is_compatible(np, DT_PREFIX "g12a-tohdmitx") ||
+ of_device_is_compatible(np, DT_PREFIX "g12a-toacodec");
}
static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
@@ -569,17 +321,17 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
dai_link->cpus = cpu;
dai_link->num_cpus = 1;
- ret = axg_card_parse_dai(card, np, &dai_link->cpus->of_node,
- &dai_link->cpus->dai_name);
+ ret = meson_card_parse_dai(card, np, &dai_link->cpus->of_node,
+ &dai_link->cpus->dai_name);
if (ret)
return ret;
if (axg_card_cpu_is_playback_fe(dai_link->cpus->of_node))
- ret = axg_card_set_fe_link(card, dai_link, np, true);
+ ret = meson_card_set_fe_link(card, dai_link, np, true);
else if (axg_card_cpu_is_capture_fe(dai_link->cpus->of_node))
- ret = axg_card_set_fe_link(card, dai_link, np, false);
+ ret = meson_card_set_fe_link(card, dai_link, np, false);
else
- ret = axg_card_set_be_link(card, dai_link, np);
+ ret = meson_card_set_be_link(card, dai_link, np);
if (ret)
return ret;
@@ -592,121 +344,21 @@ static int axg_card_add_link(struct snd_soc_card *card, struct device_node *np,
return ret;
}
-static int axg_card_add_links(struct snd_soc_card *card)
-{
- struct axg_card *priv = snd_soc_card_get_drvdata(card);
- struct device_node *node = card->dev->of_node;
- struct device_node *np;
- int num, i, ret;
-
- num = of_get_child_count(node);
- if (!num) {
- dev_err(card->dev, "card has no links\n");
- return -EINVAL;
- }
-
- ret = axg_card_reallocate_links(priv, num);
- if (ret)
- return ret;
-
- i = 0;
- for_each_child_of_node(node, np) {
- ret = axg_card_add_link(card, np, &i);
- if (ret) {
- of_node_put(np);
- return ret;
- }
-
- i++;
- }
-
- return 0;
-}
-
-static int axg_card_parse_of_optional(struct snd_soc_card *card,
- const char *propname,
- int (*func)(struct snd_soc_card *c,
- const char *p))
-{
- /* If property is not provided, don't fail ... */
- if (!of_property_read_bool(card->dev->of_node, propname))
- return 0;
-
- /* ... but do fail if it is provided and the parsing fails */
- return func(card, propname);
-}
+static const struct meson_card_match_data axg_card_match_data = {
+ .add_link = axg_card_add_link,
+};
static const struct of_device_id axg_card_of_match[] = {
- { .compatible = "amlogic,axg-sound-card", },
- {}
+ {
+ .compatible = "amlogic,axg-sound-card",
+ .data = &axg_card_match_data,
+ }, {}
};
MODULE_DEVICE_TABLE(of, axg_card_of_match);
-static int axg_card_probe(struct platform_device *pdev)
-{
- struct device *dev = &pdev->dev;
- struct axg_card *priv;
- int ret;
-
- priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
- if (!priv)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, priv);
- snd_soc_card_set_drvdata(&priv->card, priv);
-
- priv->card.owner = THIS_MODULE;
- priv->card.dev = dev;
-
- ret = snd_soc_of_parse_card_name(&priv->card, "model");
- if (ret < 0)
- return ret;
-
- ret = axg_card_parse_of_optional(&priv->card, "audio-routing",
- snd_soc_of_parse_audio_routing);
- if (ret) {
- dev_err(dev, "error while parsing routing\n");
- return ret;
- }
-
- ret = axg_card_parse_of_optional(&priv->card, "audio-widgets",
- snd_soc_of_parse_audio_simple_widgets);
- if (ret) {
- dev_err(dev, "error while parsing widgets\n");
- return ret;
- }
-
- ret = axg_card_add_links(&priv->card);
- if (ret)
- goto out_err;
-
- ret = axg_card_add_aux_devices(&priv->card);
- if (ret)
- goto out_err;
-
- ret = devm_snd_soc_register_card(dev, &priv->card);
- if (ret)
- goto out_err;
-
- return 0;
-
-out_err:
- axg_card_clean_references(priv);
- return ret;
-}
-
-static int axg_card_remove(struct platform_device *pdev)
-{
- struct axg_card *priv = platform_get_drvdata(pdev);
-
- axg_card_clean_references(priv);
-
- return 0;
-}
-
static struct platform_driver axg_card_pdrv = {
- .probe = axg_card_probe,
- .remove = axg_card_remove,
+ .probe = meson_card_probe,
+ .remove = meson_card_remove,
.driver = {
.name = "axg-sound-card",
.of_match_table = axg_card_of_match,
diff --git a/sound/soc/meson/axg-fifo.c b/sound/soc/meson/axg-fifo.c
index c12b0d5e8ebf..2e9b56b29d31 100644
--- a/sound/soc/meson/axg-fifo.c
+++ b/sound/soc/meson/axg-fifo.c
@@ -47,7 +47,7 @@ static struct snd_soc_dai *axg_fifo_dai(struct snd_pcm_substream *ss)
{
struct snd_soc_pcm_runtime *rtd = ss->private_data;
- return rtd->cpu_dai;
+ return asoc_rtd_to_cpu(rtd, 0);
}
static struct axg_fifo *axg_fifo_data(struct snd_pcm_substream *ss)
diff --git a/sound/soc/meson/g12a-toacodec.c b/sound/soc/meson/g12a-toacodec.c
new file mode 100644
index 000000000000..9339fabccb79
--- /dev/null
+++ b/sound/soc/meson/g12a-toacodec.c
@@ -0,0 +1,252 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/bitfield.h>
+#include <linux/clk.h>
+#include <linux/module.h>
+#include <sound/pcm_params.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include <dt-bindings/sound/meson-g12a-toacodec.h>
+#include "axg-tdm.h"
+#include "meson-codec-glue.h"
+
+#define G12A_TOACODEC_DRV_NAME "g12a-toacodec"
+
+#define TOACODEC_CTRL0 0x0
+#define CTRL0_ENABLE_SHIFT 31
+#define CTRL0_DAT_SEL_SHIFT 14
+#define CTRL0_DAT_SEL (0x3 << CTRL0_DAT_SEL_SHIFT)
+#define CTRL0_LANE_SEL 12
+#define CTRL0_LRCLK_SEL GENMASK(9, 8)
+#define CTRL0_BLK_CAP_INV BIT(7)
+#define CTRL0_BCLK_O_INV BIT(6)
+#define CTRL0_BCLK_SEL GENMASK(5, 4)
+#define CTRL0_MCLK_SEL GENMASK(2, 0)
+
+#define TOACODEC_OUT_CHMAX 2
+
+static const char * const g12a_toacodec_mux_texts[] = {
+ "I2S A", "I2S B", "I2S C",
+};
+
+static int g12a_toacodec_mux_put_enum(struct snd_kcontrol *kcontrol,
+ struct snd_ctl_elem_value *ucontrol)
+{
+ struct snd_soc_component *component =
+ snd_soc_dapm_kcontrol_component(kcontrol);
+ struct snd_soc_dapm_context *dapm =
+ snd_soc_dapm_kcontrol_dapm(kcontrol);
+ struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
+ unsigned int mux, changed;
+
+ mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
+ changed = snd_soc_component_test_bits(component, e->reg,
+ CTRL0_DAT_SEL,
+ FIELD_PREP(CTRL0_DAT_SEL, mux));
+
+ if (!changed)
+ return 0;
+
+ /* Force disconnect of the mux while updating */
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
+
+ snd_soc_component_update_bits(component, e->reg,
+ CTRL0_DAT_SEL |
+ CTRL0_LRCLK_SEL |
+ CTRL0_BCLK_SEL,
+ FIELD_PREP(CTRL0_DAT_SEL, mux) |
+ FIELD_PREP(CTRL0_LRCLK_SEL, mux) |
+ FIELD_PREP(CTRL0_BCLK_SEL, mux));
+
+ /*
+ * FIXME:
+ * On this soc, the glue gets the MCLK directly from the clock
+ * controller instead of going the through the TDM interface.
+ *
+ * Here we assume interface A uses clock A, etc ... While it is
+ * true for now, it could be different. Instead the glue should
+ * find out the clock used by the interface and select the same
+ * source. For that, we will need regmap backed clock mux which
+ * is a work in progress
+ */
+ snd_soc_component_update_bits(component, e->reg,
+ CTRL0_MCLK_SEL,
+ FIELD_PREP(CTRL0_MCLK_SEL, mux));
+
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
+
+ return 0;
+}
+
+static SOC_ENUM_SINGLE_DECL(g12a_toacodec_mux_enum, TOACODEC_CTRL0,
+ CTRL0_DAT_SEL_SHIFT,
+ g12a_toacodec_mux_texts);
+
+static const struct snd_kcontrol_new g12a_toacodec_mux =
+ SOC_DAPM_ENUM_EXT("Source", g12a_toacodec_mux_enum,
+ snd_soc_dapm_get_enum_double,
+ g12a_toacodec_mux_put_enum);
+
+static const struct snd_kcontrol_new g12a_toacodec_out_enable =
+ SOC_DAPM_SINGLE_AUTODISABLE("Switch", TOACODEC_CTRL0,
+ CTRL0_ENABLE_SHIFT, 1, 0);
+
+static const struct snd_soc_dapm_widget g12a_toacodec_widgets[] = {
+ SND_SOC_DAPM_MUX("SRC", SND_SOC_NOPM, 0, 0,
+ &g12a_toacodec_mux),
+ SND_SOC_DAPM_SWITCH("OUT EN", SND_SOC_NOPM, 0, 0,
+ &g12a_toacodec_out_enable),
+};
+
+static int g12a_toacodec_input_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct meson_codec_glue_input *data;
+ int ret;
+
+ ret = meson_codec_glue_input_hw_params(substream, params, dai);
+ if (ret)
+ return ret;
+
+ /* The glue will provide 1 lane out of the 4 to the output */
+ data = meson_codec_glue_input_get_data(dai);
+ data->params.channels_min = min_t(unsigned int, TOACODEC_OUT_CHMAX,
+ data->params.channels_min);
+ data->params.channels_max = min_t(unsigned int, TOACODEC_OUT_CHMAX,
+ data->params.channels_max);
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops g12a_toacodec_input_ops = {
+ .hw_params = g12a_toacodec_input_hw_params,
+ .set_fmt = meson_codec_glue_input_set_fmt,
+};
+
+static const struct snd_soc_dai_ops g12a_toacodec_output_ops = {
+ .startup = meson_codec_glue_output_startup,
+};
+
+#define TOACODEC_STREAM(xname, xsuffix, xchmax) \
+{ \
+ .stream_name = xname " " xsuffix, \
+ .channels_min = 1, \
+ .channels_max = (xchmax), \
+ .rate_min = 5512, \
+ .rate_max = 192000, \
+ .formats = AXG_TDM_FORMATS, \
+}
+
+#define TOACODEC_INPUT(xname, xid) { \
+ .name = xname, \
+ .id = (xid), \
+ .playback = TOACODEC_STREAM(xname, "Playback", 8), \
+ .ops = &g12a_toacodec_input_ops, \
+ .probe = meson_codec_glue_input_dai_probe, \
+ .remove = meson_codec_glue_input_dai_remove, \
+}
+
+#define TOACODEC_OUTPUT(xname, xid) { \
+ .name = xname, \
+ .id = (xid), \
+ .capture = TOACODEC_STREAM(xname, "Capture", TOACODEC_OUT_CHMAX), \
+ .ops = &g12a_toacodec_output_ops, \
+}
+
+static struct snd_soc_dai_driver g12a_toacodec_dai_drv[] = {
+ TOACODEC_INPUT("IN A", TOACODEC_IN_A),
+ TOACODEC_INPUT("IN B", TOACODEC_IN_B),
+ TOACODEC_INPUT("IN C", TOACODEC_IN_C),
+ TOACODEC_OUTPUT("OUT", TOACODEC_OUT),
+};
+
+static int g12a_toacodec_component_probe(struct snd_soc_component *c)
+{
+ /* Initialize the static clock parameters */
+ return snd_soc_component_write(c, TOACODEC_CTRL0,
+ CTRL0_BLK_CAP_INV);
+}
+
+static const struct snd_soc_dapm_route g12a_toacodec_routes[] = {
+ { "SRC", "I2S A", "IN A Playback" },
+ { "SRC", "I2S B", "IN B Playback" },
+ { "SRC", "I2S C", "IN C Playback" },
+ { "OUT EN", "Switch", "SRC" },
+ { "OUT Capture", NULL, "OUT EN" },
+};
+
+static const struct snd_kcontrol_new g12a_toacodec_controls[] = {
+ SOC_SINGLE("Lane Select", TOACODEC_CTRL0, CTRL0_LANE_SEL, 3, 0),
+};
+
+static const struct snd_soc_component_driver g12a_toacodec_component_drv = {
+ .probe = g12a_toacodec_component_probe,
+ .controls = g12a_toacodec_controls,
+ .num_controls = ARRAY_SIZE(g12a_toacodec_controls),
+ .dapm_widgets = g12a_toacodec_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(g12a_toacodec_widgets),
+ .dapm_routes = g12a_toacodec_routes,
+ .num_dapm_routes = ARRAY_SIZE(g12a_toacodec_routes),
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct regmap_config g12a_toacodec_regmap_cfg = {
+ .reg_bits = 32,
+ .val_bits = 32,
+ .reg_stride = 4,
+};
+
+static const struct of_device_id g12a_toacodec_of_match[] = {
+ { .compatible = "amlogic,g12a-toacodec", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, g12a_toacodec_of_match);
+
+static int g12a_toacodec_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ void __iomem *regs;
+ struct regmap *map;
+ int ret;
+
+ ret = device_reset(dev);
+ if (ret)
+ return ret;
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(regs))
+ return PTR_ERR(regs);
+
+ map = devm_regmap_init_mmio(dev, regs, &g12a_toacodec_regmap_cfg);
+ if (IS_ERR(map)) {
+ dev_err(dev, "failed to init regmap: %ld\n",
+ PTR_ERR(map));
+ return PTR_ERR(map);
+ }
+
+ return devm_snd_soc_register_component(dev,
+ &g12a_toacodec_component_drv, g12a_toacodec_dai_drv,
+ ARRAY_SIZE(g12a_toacodec_dai_drv));
+}
+
+static struct platform_driver g12a_toacodec_pdrv = {
+ .driver = {
+ .name = G12A_TOACODEC_DRV_NAME,
+ .of_match_table = g12a_toacodec_of_match,
+ },
+ .probe = g12a_toacodec_probe,
+};
+module_platform_driver(g12a_toacodec_pdrv);
+
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_DESCRIPTION("Amlogic G12a To Internal DAC Codec Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/meson/g12a-tohdmitx.c b/sound/soc/meson/g12a-tohdmitx.c
index 8a0db28a6a40..9b2b59536ced 100644
--- a/sound/soc/meson/g12a-tohdmitx.c
+++ b/sound/soc/meson/g12a-tohdmitx.c
@@ -13,112 +13,51 @@
#include <sound/soc-dai.h>
#include <dt-bindings/sound/meson-g12a-tohdmitx.h>
+#include "meson-codec-glue.h"
#define G12A_TOHDMITX_DRV_NAME "g12a-tohdmitx"
#define TOHDMITX_CTRL0 0x0
#define CTRL0_ENABLE_SHIFT 31
-#define CTRL0_I2S_DAT_SEL GENMASK(13, 12)
+#define CTRL0_I2S_DAT_SEL_SHIFT 12
+#define CTRL0_I2S_DAT_SEL (0x3 << CTRL0_I2S_DAT_SEL_SHIFT)
#define CTRL0_I2S_LRCLK_SEL GENMASK(9, 8)
#define CTRL0_I2S_BLK_CAP_INV BIT(7)
#define CTRL0_I2S_BCLK_O_INV BIT(6)
#define CTRL0_I2S_BCLK_SEL GENMASK(5, 4)
#define CTRL0_SPDIF_CLK_CAP_INV BIT(3)
#define CTRL0_SPDIF_CLK_O_INV BIT(2)
-#define CTRL0_SPDIF_SEL BIT(1)
+#define CTRL0_SPDIF_SEL_SHIFT 1
+#define CTRL0_SPDIF_SEL (0x1 << CTRL0_SPDIF_SEL_SHIFT)
#define CTRL0_SPDIF_CLK_SEL BIT(0)
-struct g12a_tohdmitx_input {
- struct snd_soc_pcm_stream params;
- unsigned int fmt;
-};
-
-static struct snd_soc_dapm_widget *
-g12a_tohdmitx_get_input(struct snd_soc_dapm_widget *w)
-{
- struct snd_soc_dapm_path *p = NULL;
- struct snd_soc_dapm_widget *in;
-
- snd_soc_dapm_widget_for_each_source_path(w, p) {
- if (!p->connect)
- continue;
-
- /* Check that we still are in the same component */
- if (snd_soc_dapm_to_component(w->dapm) !=
- snd_soc_dapm_to_component(p->source->dapm))
- continue;
-
- if (p->source->id == snd_soc_dapm_dai_in)
- return p->source;
-
- in = g12a_tohdmitx_get_input(p->source);
- if (in)
- return in;
- }
-
- return NULL;
-}
-
-static struct g12a_tohdmitx_input *
-g12a_tohdmitx_get_input_data(struct snd_soc_dapm_widget *w)
-{
- struct snd_soc_dapm_widget *in =
- g12a_tohdmitx_get_input(w);
- struct snd_soc_dai *dai;
-
- if (WARN_ON(!in))
- return NULL;
-
- dai = in->priv;
-
- return dai->playback_dma_data;
-}
-
static const char * const g12a_tohdmitx_i2s_mux_texts[] = {
"I2S A", "I2S B", "I2S C",
};
-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_i2s_mux_enum,
- g12a_tohdmitx_i2s_mux_texts);
-
-static int g12a_tohdmitx_get_input_val(struct snd_soc_component *component,
- unsigned int mask)
-{
- unsigned int val;
-
- snd_soc_component_read(component, TOHDMITX_CTRL0, &val);
- return (val & mask) >> __ffs(mask);
-}
-
-static int g12a_tohdmitx_i2s_mux_get_enum(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_component *component =
- snd_soc_dapm_kcontrol_component(kcontrol);
-
- ucontrol->value.enumerated.item[0] =
- g12a_tohdmitx_get_input_val(component, CTRL0_I2S_DAT_SEL);
-
- return 0;
-}
-
static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
+ struct snd_ctl_elem_value *ucontrol)
{
struct snd_soc_component *component =
snd_soc_dapm_kcontrol_component(kcontrol);
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- unsigned int mux = ucontrol->value.enumerated.item[0];
- unsigned int val = g12a_tohdmitx_get_input_val(component,
- CTRL0_I2S_DAT_SEL);
+ unsigned int mux, changed;
+
+ mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
+ changed = snd_soc_component_test_bits(component, e->reg,
+ CTRL0_I2S_DAT_SEL,
+ FIELD_PREP(CTRL0_I2S_DAT_SEL,
+ mux));
+
+ if (!changed)
+ return 0;
/* Force disconnect of the mux while updating */
- if (val != mux)
- snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
- snd_soc_component_update_bits(component, TOHDMITX_CTRL0,
+ snd_soc_component_update_bits(component, e->reg,
CTRL0_I2S_DAT_SEL |
CTRL0_I2S_LRCLK_SEL |
CTRL0_I2S_BCLK_SEL,
@@ -131,30 +70,19 @@ static int g12a_tohdmitx_i2s_mux_put_enum(struct snd_kcontrol *kcontrol,
return 0;
}
+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_i2s_mux_enum, TOHDMITX_CTRL0,
+ CTRL0_I2S_DAT_SEL_SHIFT,
+ g12a_tohdmitx_i2s_mux_texts);
+
static const struct snd_kcontrol_new g12a_tohdmitx_i2s_mux =
SOC_DAPM_ENUM_EXT("I2S Source", g12a_tohdmitx_i2s_mux_enum,
- g12a_tohdmitx_i2s_mux_get_enum,
+ snd_soc_dapm_get_enum_double,
g12a_tohdmitx_i2s_mux_put_enum);
static const char * const g12a_tohdmitx_spdif_mux_texts[] = {
"SPDIF A", "SPDIF B",
};
-static SOC_ENUM_SINGLE_EXT_DECL(g12a_tohdmitx_spdif_mux_enum,
- g12a_tohdmitx_spdif_mux_texts);
-
-static int g12a_tohdmitx_spdif_mux_get_enum(struct snd_kcontrol *kcontrol,
- struct snd_ctl_elem_value *ucontrol)
-{
- struct snd_soc_component *component =
- snd_soc_dapm_kcontrol_component(kcontrol);
-
- ucontrol->value.enumerated.item[0] =
- g12a_tohdmitx_get_input_val(component, CTRL0_SPDIF_SEL);
-
- return 0;
-}
-
static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
@@ -163,13 +91,18 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,
struct snd_soc_dapm_context *dapm =
snd_soc_dapm_kcontrol_dapm(kcontrol);
struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
- unsigned int mux = ucontrol->value.enumerated.item[0];
- unsigned int val = g12a_tohdmitx_get_input_val(component,
- CTRL0_SPDIF_SEL);
+ unsigned int mux, changed;
+
+ mux = snd_soc_enum_item_to_val(e, ucontrol->value.enumerated.item[0]);
+ changed = snd_soc_component_test_bits(component, TOHDMITX_CTRL0,
+ CTRL0_SPDIF_SEL,
+ FIELD_PREP(CTRL0_SPDIF_SEL, mux));
+
+ if (!changed)
+ return 0;
/* Force disconnect of the mux while updating */
- if (val != mux)
- snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
+ snd_soc_dapm_mux_update_power(dapm, kcontrol, 0, NULL, NULL);
snd_soc_component_update_bits(component, TOHDMITX_CTRL0,
CTRL0_SPDIF_SEL |
@@ -182,9 +115,13 @@ static int g12a_tohdmitx_spdif_mux_put_enum(struct snd_kcontrol *kcontrol,
return 0;
}
+static SOC_ENUM_SINGLE_DECL(g12a_tohdmitx_spdif_mux_enum, TOHDMITX_CTRL0,
+ CTRL0_SPDIF_SEL_SHIFT,
+ g12a_tohdmitx_spdif_mux_texts);
+
static const struct snd_kcontrol_new g12a_tohdmitx_spdif_mux =
SOC_DAPM_ENUM_EXT("SPDIF Source", g12a_tohdmitx_spdif_mux_enum,
- g12a_tohdmitx_spdif_mux_get_enum,
+ snd_soc_dapm_get_enum_double,
g12a_tohdmitx_spdif_mux_put_enum);
static const struct snd_kcontrol_new g12a_tohdmitx_out_enable =
@@ -202,83 +139,13 @@ static const struct snd_soc_dapm_widget g12a_tohdmitx_widgets[] = {
&g12a_tohdmitx_out_enable),
};
-static int g12a_tohdmitx_input_probe(struct snd_soc_dai *dai)
-{
- struct g12a_tohdmitx_input *data;
-
- data = kzalloc(sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- dai->playback_dma_data = data;
- return 0;
-}
-
-static int g12a_tohdmitx_input_remove(struct snd_soc_dai *dai)
-{
- kfree(dai->playback_dma_data);
- return 0;
-}
-
-static int g12a_tohdmitx_input_hw_params(struct snd_pcm_substream *substream,
- struct snd_pcm_hw_params *params,
- struct snd_soc_dai *dai)
-{
- struct g12a_tohdmitx_input *data = dai->playback_dma_data;
-
- data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params));
- data->params.rate_min = params_rate(params);
- data->params.rate_max = params_rate(params);
- data->params.formats = 1 << params_format(params);
- data->params.channels_min = params_channels(params);
- data->params.channels_max = params_channels(params);
- data->params.sig_bits = dai->driver->playback.sig_bits;
-
- return 0;
-}
-
-
-static int g12a_tohdmitx_input_set_fmt(struct snd_soc_dai *dai,
- unsigned int fmt)
-{
- struct g12a_tohdmitx_input *data = dai->playback_dma_data;
-
- /* Save the source stream format for the downstream link */
- data->fmt = fmt;
- return 0;
-}
-
-static int g12a_tohdmitx_output_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct g12a_tohdmitx_input *in_data =
- g12a_tohdmitx_get_input_data(dai->capture_widget);
-
- if (!in_data)
- return -ENODEV;
-
- if (WARN_ON(!rtd->dai_link->params)) {
- dev_warn(dai->dev, "codec2codec link expected\n");
- return -EINVAL;
- }
-
- /* Replace link params with the input params */
- rtd->dai_link->params = &in_data->params;
-
- if (!in_data->fmt)
- return 0;
-
- return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt);
-}
-
static const struct snd_soc_dai_ops g12a_tohdmitx_input_ops = {
- .hw_params = g12a_tohdmitx_input_hw_params,
- .set_fmt = g12a_tohdmitx_input_set_fmt,
+ .hw_params = meson_codec_glue_input_hw_params,
+ .set_fmt = meson_codec_glue_input_set_fmt,
};
static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = {
- .startup = g12a_tohdmitx_output_startup,
+ .startup = meson_codec_glue_output_startup,
};
#define TOHDMITX_SPDIF_FORMATS \
@@ -305,8 +172,8 @@ static const struct snd_soc_dai_ops g12a_tohdmitx_output_ops = {
.id = (xid), \
.playback = TOHDMITX_STREAM(xname, "Playback", xfmt, xchmax), \
.ops = &g12a_tohdmitx_input_ops, \
- .probe = g12a_tohdmitx_input_probe, \
- .remove = g12a_tohdmitx_input_remove, \
+ .probe = meson_codec_glue_input_dai_probe, \
+ .remove = meson_codec_glue_input_dai_remove, \
}
#define TOHDMITX_OUT(xname, xid, xfmt, xchmax) { \
diff --git a/sound/soc/meson/gx-card.c b/sound/soc/meson/gx-card.c
new file mode 100644
index 000000000000..7b01dcb73e5e
--- /dev/null
+++ b/sound/soc/meson/gx-card.c
@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "meson-card.h"
+
+struct gx_dai_link_i2s_data {
+ unsigned int mclk_fs;
+};
+
+/*
+ * Base params for the codec to codec links
+ * Those will be over-written by the CPU side of the link
+ */
+static const struct snd_soc_pcm_stream codec_params = {
+ .formats = SNDRV_PCM_FMTBIT_S24_LE,
+ .rate_min = 5525,
+ .rate_max = 192000,
+ .channels_min = 1,
+ .channels_max = 8,
+};
+
+static int gx_card_i2s_be_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct meson_card *priv = snd_soc_card_get_drvdata(rtd->card);
+ struct gx_dai_link_i2s_data *be =
+ (struct gx_dai_link_i2s_data *)priv->link_data[rtd->num];
+
+ return meson_card_i2s_set_sysclk(substream, params, be->mclk_fs);
+}
+
+static const struct snd_soc_ops gx_card_i2s_be_ops = {
+ .hw_params = gx_card_i2s_be_hw_params,
+};
+
+static int gx_card_parse_i2s(struct snd_soc_card *card,
+ struct device_node *node,
+ int *index)
+{
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dai_link *link = &card->dai_link[*index];
+ struct gx_dai_link_i2s_data *be;
+
+ /* Allocate i2s link parameters */
+ be = devm_kzalloc(card->dev, sizeof(*be), GFP_KERNEL);
+ if (!be)
+ return -ENOMEM;
+ priv->link_data[*index] = be;
+
+ /* Setup i2s link */
+ link->ops = &gx_card_i2s_be_ops;
+ link->dai_fmt = meson_card_parse_daifmt(node, link->cpus->of_node);
+
+ of_property_read_u32(node, "mclk-fs", &be->mclk_fs);
+
+ return 0;
+}
+
+static int gx_card_cpu_identify(struct snd_soc_dai_link_component *c,
+ char *match)
+{
+ if (of_device_is_compatible(c->of_node, DT_PREFIX "aiu")) {
+ if (strstr(c->dai_name, match))
+ return 1;
+ }
+
+ /* dai not matched */
+ return 0;
+}
+
+static int gx_card_add_link(struct snd_soc_card *card, struct device_node *np,
+ int *index)
+{
+ struct snd_soc_dai_link *dai_link = &card->dai_link[*index];
+ struct snd_soc_dai_link_component *cpu;
+ int ret;
+
+ cpu = devm_kzalloc(card->dev, sizeof(*cpu), GFP_KERNEL);
+ if (!cpu)
+ return -ENOMEM;
+
+ dai_link->cpus = cpu;
+ dai_link->num_cpus = 1;
+
+ ret = meson_card_parse_dai(card, np, &dai_link->cpus->of_node,
+ &dai_link->cpus->dai_name);
+ if (ret)
+ return ret;
+
+ if (gx_card_cpu_identify(dai_link->cpus, "FIFO"))
+ ret = meson_card_set_fe_link(card, dai_link, np, true);
+ else
+ ret = meson_card_set_be_link(card, dai_link, np);
+
+ if (ret)
+ return ret;
+
+ /* Check if the cpu is the i2s encoder and parse i2s data */
+ if (gx_card_cpu_identify(dai_link->cpus, "I2S Encoder"))
+ ret = gx_card_parse_i2s(card, np, index);
+
+ /* Or apply codec to codec params if necessary */
+ else if (gx_card_cpu_identify(dai_link->cpus, "CODEC CTRL"))
+ dai_link->params = &codec_params;
+
+ return ret;
+}
+
+static const struct meson_card_match_data gx_card_match_data = {
+ .add_link = gx_card_add_link,
+};
+
+static const struct of_device_id gx_card_of_match[] = {
+ {
+ .compatible = "amlogic,gx-sound-card",
+ .data = &gx_card_match_data,
+ }, {}
+};
+MODULE_DEVICE_TABLE(of, gx_card_of_match);
+
+static struct platform_driver gx_card_pdrv = {
+ .probe = meson_card_probe,
+ .remove = meson_card_remove,
+ .driver = {
+ .name = "gx-sound-card",
+ .of_match_table = gx_card_of_match,
+ },
+};
+module_platform_driver(gx_card_pdrv);
+
+MODULE_DESCRIPTION("Amlogic GX ALSA machine driver");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/meson/meson-card-utils.c b/sound/soc/meson/meson-card-utils.c
new file mode 100644
index 000000000000..2ca8c98e204f
--- /dev/null
+++ b/sound/soc/meson/meson-card-utils.c
@@ -0,0 +1,385 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <sound/soc.h>
+
+#include "meson-card.h"
+
+int meson_card_i2s_set_sysclk(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ unsigned int mclk_fs)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_dai *codec_dai;
+ unsigned int mclk;
+ int ret, i;
+
+ if (!mclk_fs)
+ return 0;
+
+ mclk = params_rate(params) * mclk_fs;
+
+ for_each_rtd_codec_dais(rtd, i, codec_dai) {
+ ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+ SND_SOC_CLOCK_IN);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+ }
+
+ ret = snd_soc_dai_set_sysclk(asoc_rtd_to_cpu(rtd, 0), 0, mclk,
+ SND_SOC_CLOCK_OUT);
+ if (ret && ret != -ENOTSUPP)
+ return ret;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_card_i2s_set_sysclk);
+
+int meson_card_reallocate_links(struct snd_soc_card *card,
+ unsigned int num_links)
+{
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
+ struct snd_soc_dai_link *links;
+ void **ldata;
+
+ links = krealloc(priv->card.dai_link,
+ num_links * sizeof(*priv->card.dai_link),
+ GFP_KERNEL | __GFP_ZERO);
+ ldata = krealloc(priv->link_data,
+ num_links * sizeof(*priv->link_data),
+ GFP_KERNEL | __GFP_ZERO);
+
+ if (!links || !ldata) {
+ dev_err(priv->card.dev, "failed to allocate links\n");
+ return -ENOMEM;
+ }
+
+ priv->card.dai_link = links;
+ priv->link_data = ldata;
+ priv->card.num_links = num_links;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_card_reallocate_links);
+
+int meson_card_parse_dai(struct snd_soc_card *card,
+ struct device_node *node,
+ struct device_node **dai_of_node,
+ const char **dai_name)
+{
+ struct of_phandle_args args;
+ int ret;
+
+ if (!dai_name || !dai_of_node || !node)
+ return -EINVAL;
+
+ ret = of_parse_phandle_with_args(node, "sound-dai",
+ "#sound-dai-cells", 0, &args);
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
+ dev_err(card->dev, "can't parse dai %d\n", ret);
+ return ret;
+ }
+ *dai_of_node = args.np;
+
+ return snd_soc_get_dai_name(&args, dai_name);
+}
+EXPORT_SYMBOL_GPL(meson_card_parse_dai);
+
+static int meson_card_set_link_name(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link,
+ struct device_node *node,
+ const char *prefix)
+{
+ char *name = devm_kasprintf(card->dev, GFP_KERNEL, "%s.%s",
+ prefix, node->full_name);
+ if (!name)
+ return -ENOMEM;
+
+ link->name = name;
+ link->stream_name = name;
+
+ return 0;
+}
+
+unsigned int meson_card_parse_daifmt(struct device_node *node,
+ struct device_node *cpu_node)
+{
+ struct device_node *bitclkmaster = NULL;
+ struct device_node *framemaster = NULL;
+ unsigned int daifmt;
+
+ daifmt = snd_soc_of_parse_daifmt(node, DT_PREFIX,
+ &bitclkmaster, &framemaster);
+ daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+
+ /* If no master is provided, default to cpu master */
+ if (!bitclkmaster || bitclkmaster == cpu_node) {
+ daifmt |= (!framemaster || framemaster == cpu_node) ?
+ SND_SOC_DAIFMT_CBS_CFS : SND_SOC_DAIFMT_CBS_CFM;
+ } else {
+ daifmt |= (!framemaster || framemaster == cpu_node) ?
+ SND_SOC_DAIFMT_CBM_CFS : SND_SOC_DAIFMT_CBM_CFM;
+ }
+
+ of_node_put(bitclkmaster);
+ of_node_put(framemaster);
+
+ return daifmt;
+}
+EXPORT_SYMBOL_GPL(meson_card_parse_daifmt);
+
+int meson_card_set_be_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link,
+ struct device_node *node)
+{
+ struct snd_soc_dai_link_component *codec;
+ struct device_node *np;
+ int ret, num_codecs;
+
+ link->no_pcm = 1;
+ link->dpcm_playback = 1;
+ link->dpcm_capture = 1;
+
+ num_codecs = of_get_child_count(node);
+ if (!num_codecs) {
+ dev_err(card->dev, "be link %s has no codec\n",
+ node->full_name);
+ return -EINVAL;
+ }
+
+ codec = devm_kcalloc(card->dev, num_codecs, sizeof(*codec), GFP_KERNEL);
+ if (!codec)
+ return -ENOMEM;
+
+ link->codecs = codec;
+ link->num_codecs = num_codecs;
+
+ for_each_child_of_node(node, np) {
+ ret = meson_card_parse_dai(card, np, &codec->of_node,
+ &codec->dai_name);
+ if (ret) {
+ of_node_put(np);
+ return ret;
+ }
+
+ codec++;
+ }
+
+ ret = meson_card_set_link_name(card, link, node, "be");
+ if (ret)
+ dev_err(card->dev, "error setting %pOFn link name\n", np);
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(meson_card_set_be_link);
+
+int meson_card_set_fe_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link,
+ struct device_node *node,
+ bool is_playback)
+{
+ struct snd_soc_dai_link_component *codec;
+
+ codec = devm_kzalloc(card->dev, sizeof(*codec), GFP_KERNEL);
+ if (!codec)
+ return -ENOMEM;
+
+ link->codecs = codec;
+ link->num_codecs = 1;
+
+ link->dynamic = 1;
+ link->dpcm_merged_format = 1;
+ link->dpcm_merged_chan = 1;
+ link->dpcm_merged_rate = 1;
+ link->codecs->dai_name = "snd-soc-dummy-dai";
+ link->codecs->name = "snd-soc-dummy";
+
+ if (is_playback)
+ link->dpcm_playback = 1;
+ else
+ link->dpcm_capture = 1;
+
+ return meson_card_set_link_name(card, link, node, "fe");
+}
+EXPORT_SYMBOL_GPL(meson_card_set_fe_link);
+
+static int meson_card_add_links(struct snd_soc_card *card)
+{
+ struct meson_card *priv = snd_soc_card_get_drvdata(card);
+ struct device_node *node = card->dev->of_node;
+ struct device_node *np;
+ int num, i, ret;
+
+ num = of_get_child_count(node);
+ if (!num) {
+ dev_err(card->dev, "card has no links\n");
+ return -EINVAL;
+ }
+
+ ret = meson_card_reallocate_links(card, num);
+ if (ret)
+ return ret;
+
+ i = 0;
+ for_each_child_of_node(node, np) {
+ ret = priv->match_data->add_link(card, np, &i);
+ if (ret) {
+ of_node_put(np);
+ return ret;
+ }
+
+ i++;
+ }
+
+ return 0;
+}
+
+static int meson_card_parse_of_optional(struct snd_soc_card *card,
+ const char *propname,
+ int (*func)(struct snd_soc_card *c,
+ const char *p))
+{
+ /* If property is not provided, don't fail ... */
+ if (!of_property_read_bool(card->dev->of_node, propname))
+ return 0;
+
+ /* ... but do fail if it is provided and the parsing fails */
+ return func(card, propname);
+}
+
+static int meson_card_add_aux_devices(struct snd_soc_card *card)
+{
+ struct device_node *node = card->dev->of_node;
+ struct snd_soc_aux_dev *aux;
+ int num, i;
+
+ num = of_count_phandle_with_args(node, "audio-aux-devs", NULL);
+ if (num == -ENOENT) {
+ return 0;
+ } else if (num < 0) {
+ dev_err(card->dev, "error getting auxiliary devices: %d\n",
+ num);
+ return num;
+ }
+
+ aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL);
+ if (!aux)
+ return -ENOMEM;
+ card->aux_dev = aux;
+ card->num_aux_devs = num;
+
+ for_each_card_pre_auxs(card, i, aux) {
+ aux->dlc.of_node =
+ of_parse_phandle(node, "audio-aux-devs", i);
+ if (!aux->dlc.of_node)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void meson_card_clean_references(struct meson_card *priv)
+{
+ struct snd_soc_card *card = &priv->card;
+ struct snd_soc_dai_link *link;
+ struct snd_soc_dai_link_component *codec;
+ struct snd_soc_aux_dev *aux;
+ int i, j;
+
+ if (card->dai_link) {
+ for_each_card_prelinks(card, i, link) {
+ if (link->cpus)
+ of_node_put(link->cpus->of_node);
+ for_each_link_codecs(link, j, codec)
+ of_node_put(codec->of_node);
+ }
+ }
+
+ if (card->aux_dev) {
+ for_each_card_pre_auxs(card, i, aux)
+ of_node_put(aux->dlc.of_node);
+ }
+
+ kfree(card->dai_link);
+ kfree(priv->link_data);
+}
+
+int meson_card_probe(struct platform_device *pdev)
+{
+ const struct meson_card_match_data *data;
+ struct device *dev = &pdev->dev;
+ struct meson_card *priv;
+ int ret;
+
+ data = of_device_get_match_data(dev);
+ if (!data) {
+ dev_err(dev, "failed to match device\n");
+ return -ENODEV;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ platform_set_drvdata(pdev, priv);
+ snd_soc_card_set_drvdata(&priv->card, priv);
+
+ priv->card.owner = THIS_MODULE;
+ priv->card.dev = dev;
+ priv->match_data = data;
+
+ ret = snd_soc_of_parse_card_name(&priv->card, "model");
+ if (ret < 0)
+ return ret;
+
+ ret = meson_card_parse_of_optional(&priv->card, "audio-routing",
+ snd_soc_of_parse_audio_routing);
+ if (ret) {
+ dev_err(dev, "error while parsing routing\n");
+ return ret;
+ }
+
+ ret = meson_card_parse_of_optional(&priv->card, "audio-widgets",
+ snd_soc_of_parse_audio_simple_widgets);
+ if (ret) {
+ dev_err(dev, "error while parsing widgets\n");
+ return ret;
+ }
+
+ ret = meson_card_add_links(&priv->card);
+ if (ret)
+ goto out_err;
+
+ ret = meson_card_add_aux_devices(&priv->card);
+ if (ret)
+ goto out_err;
+
+ ret = devm_snd_soc_register_card(dev, &priv->card);
+ if (ret)
+ goto out_err;
+
+ return 0;
+
+out_err:
+ meson_card_clean_references(priv);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(meson_card_probe);
+
+int meson_card_remove(struct platform_device *pdev)
+{
+ struct meson_card *priv = platform_get_drvdata(pdev);
+
+ meson_card_clean_references(priv);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_card_remove);
+
+MODULE_DESCRIPTION("Amlogic Sound Card Utils");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/meson/meson-card.h b/sound/soc/meson/meson-card.h
new file mode 100644
index 000000000000..74314071c80d
--- /dev/null
+++ b/sound/soc/meson/meson-card.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2020 BayLibre, SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _MESON_SND_CARD_H
+#define _MESON_SND_CARD_H
+
+struct device_node;
+struct platform_device;
+
+struct snd_soc_card;
+struct snd_pcm_substream;
+struct snd_pcm_hw_params;
+
+#define DT_PREFIX "amlogic,"
+
+struct meson_card_match_data {
+ int (*add_link)(struct snd_soc_card *card,
+ struct device_node *node,
+ int *index);
+};
+
+struct meson_card {
+ const struct meson_card_match_data *match_data;
+ struct snd_soc_card card;
+ void **link_data;
+};
+
+unsigned int meson_card_parse_daifmt(struct device_node *node,
+ struct device_node *cpu_node);
+
+int meson_card_i2s_set_sysclk(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ unsigned int mclk_fs);
+
+int meson_card_reallocate_links(struct snd_soc_card *card,
+ unsigned int num_links);
+int meson_card_parse_dai(struct snd_soc_card *card,
+ struct device_node *node,
+ struct device_node **dai_of_node,
+ const char **dai_name);
+int meson_card_set_be_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link,
+ struct device_node *node);
+int meson_card_set_fe_link(struct snd_soc_card *card,
+ struct snd_soc_dai_link *link,
+ struct device_node *node,
+ bool is_playback);
+
+int meson_card_probe(struct platform_device *pdev);
+int meson_card_remove(struct platform_device *pdev);
+
+#endif /* _MESON_SND_CARD_H */
diff --git a/sound/soc/meson/meson-codec-glue.c b/sound/soc/meson/meson-codec-glue.c
new file mode 100644
index 000000000000..524a33472337
--- /dev/null
+++ b/sound/soc/meson/meson-codec-glue.c
@@ -0,0 +1,149 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2019 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/module.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+
+#include "meson-codec-glue.h"
+
+static struct snd_soc_dapm_widget *
+meson_codec_glue_get_input(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_path *p = NULL;
+ struct snd_soc_dapm_widget *in;
+
+ snd_soc_dapm_widget_for_each_source_path(w, p) {
+ if (!p->connect)
+ continue;
+
+ /* Check that we still are in the same component */
+ if (snd_soc_dapm_to_component(w->dapm) !=
+ snd_soc_dapm_to_component(p->source->dapm))
+ continue;
+
+ if (p->source->id == snd_soc_dapm_dai_in)
+ return p->source;
+
+ in = meson_codec_glue_get_input(p->source);
+ if (in)
+ return in;
+ }
+
+ return NULL;
+}
+
+static void meson_codec_glue_input_set_data(struct snd_soc_dai *dai,
+ struct meson_codec_glue_input *data)
+{
+ dai->playback_dma_data = data;
+}
+
+struct meson_codec_glue_input *
+meson_codec_glue_input_get_data(struct snd_soc_dai *dai)
+{
+ return dai->playback_dma_data;
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_input_get_data);
+
+static struct meson_codec_glue_input *
+meson_codec_glue_output_get_input_data(struct snd_soc_dapm_widget *w)
+{
+ struct snd_soc_dapm_widget *in =
+ meson_codec_glue_get_input(w);
+ struct snd_soc_dai *dai;
+
+ if (WARN_ON(!in))
+ return NULL;
+
+ dai = in->priv;
+
+ return meson_codec_glue_input_get_data(dai);
+}
+
+int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai)
+{
+ struct meson_codec_glue_input *data =
+ meson_codec_glue_input_get_data(dai);
+
+ data->params.rates = snd_pcm_rate_to_rate_bit(params_rate(params));
+ data->params.rate_min = params_rate(params);
+ data->params.rate_max = params_rate(params);
+ data->params.formats = 1ULL << (__force int) params_format(params);
+ data->params.channels_min = params_channels(params);
+ data->params.channels_max = params_channels(params);
+ data->params.sig_bits = dai->driver->playback.sig_bits;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_input_hw_params);
+
+int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt)
+{
+ struct meson_codec_glue_input *data =
+ meson_codec_glue_input_get_data(dai);
+
+ /* Save the source stream format for the downstream link */
+ data->fmt = fmt;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_input_set_fmt);
+
+int meson_codec_glue_output_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai)
+{
+ struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct meson_codec_glue_input *in_data =
+ meson_codec_glue_output_get_input_data(dai->capture_widget);
+
+ if (!in_data)
+ return -ENODEV;
+
+ if (WARN_ON(!rtd->dai_link->params)) {
+ dev_warn(dai->dev, "codec2codec link expected\n");
+ return -EINVAL;
+ }
+
+ /* Replace link params with the input params */
+ rtd->dai_link->params = &in_data->params;
+
+ if (!in_data->fmt)
+ return 0;
+
+ return snd_soc_runtime_set_dai_fmt(rtd, in_data->fmt);
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_output_startup);
+
+int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai)
+{
+ struct meson_codec_glue_input *data;
+
+ data = kzalloc(sizeof(*data), GFP_KERNEL);
+ if (!data)
+ return -ENOMEM;
+
+ meson_codec_glue_input_set_data(dai, data);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_probe);
+
+int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai)
+{
+ struct meson_codec_glue_input *data =
+ meson_codec_glue_input_get_data(dai);
+
+ kfree(data);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(meson_codec_glue_input_dai_remove);
+
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_DESCRIPTION("Amlogic Codec Glue Helpers");
+MODULE_LICENSE("GPL v2");
+
diff --git a/sound/soc/meson/meson-codec-glue.h b/sound/soc/meson/meson-codec-glue.h
new file mode 100644
index 000000000000..07f99446c0c6
--- /dev/null
+++ b/sound/soc/meson/meson-codec-glue.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2018 Baylibre SAS.
+ * Author: Jerome Brunet <jbrunet@baylibre.com>
+ */
+
+#ifndef _MESON_CODEC_GLUE_H
+#define _MESON_CODEC_GLUE_H
+
+#include <sound/soc.h>
+
+struct meson_codec_glue_input {
+ struct snd_soc_pcm_stream params;
+ unsigned int fmt;
+};
+
+/* Input helpers */
+struct meson_codec_glue_input *
+meson_codec_glue_input_get_data(struct snd_soc_dai *dai);
+int meson_codec_glue_input_hw_params(struct snd_pcm_substream *substream,
+ struct snd_pcm_hw_params *params,
+ struct snd_soc_dai *dai);
+int meson_codec_glue_input_set_fmt(struct snd_soc_dai *dai,
+ unsigned int fmt);
+int meson_codec_glue_input_dai_probe(struct snd_soc_dai *dai);
+int meson_codec_glue_input_dai_remove(struct snd_soc_dai *dai);
+
+/* Output helpers */
+int meson_codec_glue_output_startup(struct snd_pcm_substream *substream,
+ struct snd_soc_dai *dai);
+
+#endif /* _MESON_CODEC_GLUE_H */
diff --git a/sound/soc/meson/t9015.c b/sound/soc/meson/t9015.c
new file mode 100644
index 000000000000..56d2592c16d5
--- /dev/null
+++ b/sound/soc/meson/t9015.c
@@ -0,0 +1,333 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// Copyright (c) 2020 BayLibre, SAS.
+// Author: Jerome Brunet <jbrunet@baylibre.com>
+
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+#include <linux/reset.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+
+#define BLOCK_EN 0x00
+#define LORN_EN 0
+#define LORP_EN 1
+#define LOLN_EN 2
+#define LOLP_EN 3
+#define DACR_EN 4
+#define DACL_EN 5
+#define DACR_INV 20
+#define DACL_INV 21
+#define DACR_SRC 22
+#define DACL_SRC 23
+#define REFP_BUF_EN BIT(12)
+#define BIAS_CURRENT_EN BIT(13)
+#define VMID_GEN_FAST BIT(14)
+#define VMID_GEN_EN BIT(15)
+#define I2S_MODE BIT(30)
+#define VOL_CTRL0 0x04
+#define GAIN_H 31
+#define GAIN_L 23
+#define VOL_CTRL1 0x08
+#define DAC_MONO 8
+#define RAMP_RATE 10
+#define VC_RAMP_MODE 12
+#define MUTE_MODE 13
+#define UNMUTE_MODE 14
+#define DAC_SOFT_MUTE 15
+#define DACR_VC 16
+#define DACL_VC 24
+#define LINEOUT_CFG 0x0c
+#define LORN_POL 0
+#define LORP_POL 4
+#define LOLN_POL 8
+#define LOLP_POL 12
+#define POWER_CFG 0x10
+
+struct t9015 {
+ struct clk *pclk;
+ struct regulator *avdd;
+};
+
+static int t9015_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+ struct snd_soc_component *component = dai->component;
+ unsigned int val;
+
+ switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+ case SND_SOC_DAIFMT_CBM_CFM:
+ val = I2S_MODE;
+ break;
+
+ case SND_SOC_DAIFMT_CBS_CFS:
+ val = 0;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ snd_soc_component_update_bits(component, BLOCK_EN, I2S_MODE, val);
+
+ if (((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_I2S) &&
+ ((fmt & SND_SOC_DAIFMT_FORMAT_MASK) != SND_SOC_DAIFMT_LEFT_J))
+ return -EINVAL;
+
+ return 0;
+}
+
+static const struct snd_soc_dai_ops t9015_dai_ops = {
+ .set_fmt = t9015_dai_set_fmt,
+};
+
+static struct snd_soc_dai_driver t9015_dai = {
+ .name = "t9015-hifi",
+ .playback = {
+ .stream_name = "Playback",
+ .channels_min = 1,
+ .channels_max = 2,
+ .rates = SNDRV_PCM_RATE_8000_96000,
+ .formats = (SNDRV_PCM_FMTBIT_S8 |
+ SNDRV_PCM_FMTBIT_S16_LE |
+ SNDRV_PCM_FMTBIT_S20_LE |
+ SNDRV_PCM_FMTBIT_S24_LE),
+ },
+ .ops = &t9015_dai_ops,
+};
+
+static const DECLARE_TLV_DB_MINMAX_MUTE(dac_vol_tlv, -9525, 0);
+
+static const char * const ramp_rate_txt[] = { "Fast", "Slow" };
+static SOC_ENUM_SINGLE_DECL(ramp_rate_enum, VOL_CTRL1, RAMP_RATE,
+ ramp_rate_txt);
+
+static const char * const dacr_in_txt[] = { "Right", "Left" };
+static SOC_ENUM_SINGLE_DECL(dacr_in_enum, BLOCK_EN, DACR_SRC, dacr_in_txt);
+
+static const char * const dacl_in_txt[] = { "Left", "Right" };
+static SOC_ENUM_SINGLE_DECL(dacl_in_enum, BLOCK_EN, DACL_SRC, dacl_in_txt);
+
+static const char * const mono_txt[] = { "Stereo", "Mono"};
+static SOC_ENUM_SINGLE_DECL(mono_enum, VOL_CTRL1, DAC_MONO, mono_txt);
+
+static const struct snd_kcontrol_new t9015_snd_controls[] = {
+ /* Volume Controls */
+ SOC_ENUM("Playback Channel Mode", mono_enum),
+ SOC_SINGLE("Playback Switch", VOL_CTRL1, DAC_SOFT_MUTE, 1, 1),
+ SOC_DOUBLE_TLV("Playback Volume", VOL_CTRL1, DACL_VC, DACR_VC,
+ 0xff, 0, dac_vol_tlv),
+
+ /* Ramp Controls */
+ SOC_ENUM("Ramp Rate", ramp_rate_enum),
+ SOC_SINGLE("Volume Ramp Switch", VOL_CTRL1, VC_RAMP_MODE, 1, 0),
+ SOC_SINGLE("Mute Ramp Switch", VOL_CTRL1, MUTE_MODE, 1, 0),
+ SOC_SINGLE("Unmute Ramp Switch", VOL_CTRL1, UNMUTE_MODE, 1, 0),
+};
+
+static const struct snd_kcontrol_new t9015_right_dac_mux =
+ SOC_DAPM_ENUM("Right DAC Source", dacr_in_enum);
+static const struct snd_kcontrol_new t9015_left_dac_mux =
+ SOC_DAPM_ENUM("Left DAC Source", dacl_in_enum);
+
+static const struct snd_soc_dapm_widget t9015_dapm_widgets[] = {
+ SND_SOC_DAPM_AIF_IN("Right IN", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_AIF_IN("Left IN", NULL, 0, SND_SOC_NOPM, 0, 0),
+ SND_SOC_DAPM_MUX("Right DAC Sel", SND_SOC_NOPM, 0, 0,
+ &t9015_right_dac_mux),
+ SND_SOC_DAPM_MUX("Left DAC Sel", SND_SOC_NOPM, 0, 0,
+ &t9015_left_dac_mux),
+ SND_SOC_DAPM_DAC("Right DAC", NULL, BLOCK_EN, DACR_EN, 0),
+ SND_SOC_DAPM_DAC("Left DAC", NULL, BLOCK_EN, DACL_EN, 0),
+ SND_SOC_DAPM_OUT_DRV("Right- Driver", BLOCK_EN, LORN_EN, 0,
+ NULL, 0),
+ SND_SOC_DAPM_OUT_DRV("Right+ Driver", BLOCK_EN, LORP_EN, 0,
+ NULL, 0),
+ SND_SOC_DAPM_OUT_DRV("Left- Driver", BLOCK_EN, LOLN_EN, 0,
+ NULL, 0),
+ SND_SOC_DAPM_OUT_DRV("Left+ Driver", BLOCK_EN, LOLP_EN, 0,
+ NULL, 0),
+ SND_SOC_DAPM_OUTPUT("LORN"),
+ SND_SOC_DAPM_OUTPUT("LORP"),
+ SND_SOC_DAPM_OUTPUT("LOLN"),
+ SND_SOC_DAPM_OUTPUT("LOLP"),
+};
+
+static const struct snd_soc_dapm_route t9015_dapm_routes[] = {
+ { "Right IN", NULL, "Playback" },
+ { "Left IN", NULL, "Playback" },
+ { "Right DAC Sel", "Right", "Right IN" },
+ { "Right DAC Sel", "Left", "Left IN" },
+ { "Left DAC Sel", "Right", "Right IN" },
+ { "Left DAC Sel", "Left", "Left IN" },
+ { "Right DAC", NULL, "Right DAC Sel" },
+ { "Left DAC", NULL, "Left DAC Sel" },
+ { "Right- Driver", NULL, "Right DAC" },
+ { "Right+ Driver", NULL, "Right DAC" },
+ { "Left- Driver", NULL, "Left DAC" },
+ { "Left+ Driver", NULL, "Left DAC" },
+ { "LORN", NULL, "Right- Driver", },
+ { "LORP", NULL, "Right+ Driver", },
+ { "LOLN", NULL, "Left- Driver", },
+ { "LOLP", NULL, "Left+ Driver", },
+};
+
+static int t9015_set_bias_level(struct snd_soc_component *component,
+ enum snd_soc_bias_level level)
+{
+ struct t9015 *priv = snd_soc_component_get_drvdata(component);
+ enum snd_soc_bias_level now =
+ snd_soc_component_get_bias_level(component);
+ int ret;
+
+ switch (level) {
+ case SND_SOC_BIAS_ON:
+ snd_soc_component_update_bits(component, BLOCK_EN,
+ BIAS_CURRENT_EN,
+ BIAS_CURRENT_EN);
+ break;
+ case SND_SOC_BIAS_PREPARE:
+ snd_soc_component_update_bits(component, BLOCK_EN,
+ BIAS_CURRENT_EN,
+ 0);
+ break;
+ case SND_SOC_BIAS_STANDBY:
+ ret = regulator_enable(priv->avdd);
+ if (ret) {
+ dev_err(component->dev, "AVDD enable failed\n");
+ return ret;
+ }
+
+ if (now == SND_SOC_BIAS_OFF) {
+ snd_soc_component_update_bits(component, BLOCK_EN,
+ VMID_GEN_EN | VMID_GEN_FAST | REFP_BUF_EN,
+ VMID_GEN_EN | VMID_GEN_FAST | REFP_BUF_EN);
+
+ mdelay(200);
+ snd_soc_component_update_bits(component, BLOCK_EN,
+ VMID_GEN_FAST,
+ 0);
+ }
+
+ break;
+ case SND_SOC_BIAS_OFF:
+ snd_soc_component_update_bits(component, BLOCK_EN,
+ VMID_GEN_EN | VMID_GEN_FAST | REFP_BUF_EN,
+ 0);
+
+ regulator_disable(priv->avdd);
+ break;
+ }
+
+ return 0;
+}
+
+static const struct snd_soc_component_driver t9015_codec_driver = {
+ .set_bias_level = t9015_set_bias_level,
+ .controls = t9015_snd_controls,
+ .num_controls = ARRAY_SIZE(t9015_snd_controls),
+ .dapm_widgets = t9015_dapm_widgets,
+ .num_dapm_widgets = ARRAY_SIZE(t9015_dapm_widgets),
+ .dapm_routes = t9015_dapm_routes,
+ .num_dapm_routes = ARRAY_SIZE(t9015_dapm_routes),
+ .suspend_bias_off = 1,
+ .endianness = 1,
+ .non_legacy_dai_naming = 1,
+};
+
+static const struct regmap_config t9015_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = POWER_CFG,
+};
+
+static int t9015_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct t9015 *priv;
+ void __iomem *regs;
+ struct regmap *regmap;
+ int ret;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+ platform_set_drvdata(pdev, priv);
+
+ priv->pclk = devm_clk_get(dev, "pclk");
+ if (IS_ERR(priv->pclk)) {
+ if (PTR_ERR(priv->pclk) != -EPROBE_DEFER)
+ dev_err(dev, "failed to get core clock\n");
+ return PTR_ERR(priv->pclk);
+ }
+
+ priv->avdd = devm_regulator_get(dev, "AVDD");
+ if (IS_ERR(priv->avdd)) {
+ if (PTR_ERR(priv->avdd) != -EPROBE_DEFER)
+ dev_err(dev, "failed to AVDD\n");
+ return PTR_ERR(priv->avdd);
+ }
+
+ ret = clk_prepare_enable(priv->pclk);
+ if (ret) {
+ dev_err(dev, "core clock enable failed\n");
+ return ret;
+ }
+
+ ret = devm_add_action_or_reset(dev,
+ (void(*)(void *))clk_disable_unprepare,
+ priv->pclk);
+ if (ret)
+ return ret;
+
+ ret = device_reset(dev);
+ if (ret) {
+ dev_err(dev, "reset failed\n");
+ return ret;
+ }
+
+ regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(regs)) {
+ dev_err(dev, "register map failed\n");
+ return PTR_ERR(regs);
+ }
+
+ regmap = devm_regmap_init_mmio(dev, regs, &t9015_regmap_config);
+ if (IS_ERR(regmap)) {
+ dev_err(dev, "regmap init failed\n");
+ return PTR_ERR(regmap);
+ }
+
+ /*
+ * Initialize output polarity:
+ * ATM the output polarity is fixed but in the future it might useful
+ * to add DT property to set this depending on the platform needs
+ */
+ regmap_write(regmap, LINEOUT_CFG, 0x1111);
+
+ return devm_snd_soc_register_component(dev, &t9015_codec_driver,
+ &t9015_dai, 1);
+}
+
+static const struct of_device_id t9015_ids[] = {
+ { .compatible = "amlogic,t9015", },
+ { }
+};
+MODULE_DEVICE_TABLE(of, t9015_ids);
+
+static struct platform_driver t9015_driver = {
+ .driver = {
+ .name = "t9015-codec",
+ .of_match_table = of_match_ptr(t9015_ids),
+ },
+ .probe = t9015_probe,
+};
+
+module_platform_driver(t9015_driver);
+
+MODULE_DESCRIPTION("ASoC Amlogic T9015 codec driver");
+MODULE_AUTHOR("Jerome Brunet <jbrunet@baylibre.com>");
+MODULE_LICENSE("GPL");