Merge tag 'asoc-v4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-next

ASoC: Further updates for v4.2

There's a bunch of additional updates and fixes that came in since my
orignal pull request here, including DT support for rt5645 and fairly
large serieses of cleanups and improvements to tas2552 and rcar.

4 files changed, 217 insertions, 18 deletions

diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index 938144c59e2b..807fedfa1c76 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -32,3 +32,12 @@ config SND_SOC_STORM
 	help
           Say Y or M if you want add support for SoC audio on the
           Qualcomm Technologies IPQ806X-based Storm board.
+
+config SND_SOC_APQ8016_SBC
+	tristate "SoC Audio support for APQ8016 SBC platforms"
+	depends on SND_SOC_QCOM && (ARCH_QCOM || COMPILE_TEST)
+	select SND_SOC_LPASS_APQ8016
+	help
+          Support for Qualcomm Technologies LPASS audio block in
+          APQ8016 SOC-based systems.
+          Say Y if you want to use audio devices on MI2S.
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index ac7630833fe5..79e5c50a8f71 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -11,5 +11,7 @@ obj-$(CONFIG_SND_SOC_LPASS_APQ8016) += snd-soc-lpass-apq8016.o
 
 # Machine
 snd-soc-storm-objs := storm.o
+snd-soc-apq8016-sbc-objs := apq8016_sbc.o
 
 obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
+obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
diff --git a/sound/soc/qcom/apq8016_sbc.c b/sound/soc/qcom/apq8016_sbc.c
new file mode 100644
index 000000000000..1efdf0088ecd
--- /dev/null
+++ b/sound/soc/qcom/apq8016_sbc.c
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2015 The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/soc.h>
+#include <dt-bindings/sound/apq8016-lpass.h>
+
+struct apq8016_sbc_data {
+	void __iomem *mic_iomux;
+	void __iomem *spkr_iomux;
+	struct snd_soc_dai_link dai_link[];	/* dynamically allocated */
+};
+
+#define MIC_CTRL_QUA_WS_SLAVE_SEL_10	BIT(17)
+#define MIC_CTRL_TLMM_SCLK_EN		BIT(1)
+#define	SPKR_CTL_PRI_WS_SLAVE_SEL_11	(BIT(17) | BIT(16))
+
+static int apq8016_sbc_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct snd_soc_card *card = rtd->card;
+	struct apq8016_sbc_data *pdata = snd_soc_card_get_drvdata(card);
+	int rval = 0;
+
+	switch (cpu_dai->id) {
+	case MI2S_PRIMARY:
+		writel(readl(pdata->spkr_iomux) | SPKR_CTL_PRI_WS_SLAVE_SEL_11,
+			pdata->spkr_iomux);
+		break;
+
+	case MI2S_QUATERNARY:
+		/* Configure the Quat MI2S to TLMM */
+		writel(readl(pdata->mic_iomux) | MIC_CTRL_QUA_WS_SLAVE_SEL_10 |
+			MIC_CTRL_TLMM_SCLK_EN,
+			pdata->mic_iomux);
+		break;
+
+	default:
+		dev_err(card->dev, "unsupported cpu dai configuration\n");
+		rval = -EINVAL;
+		break;
+
+	}
+
+	return rval;
+}
+
+static struct apq8016_sbc_data *apq8016_sbc_parse_of(struct snd_soc_card *card)
+{
+	struct device *dev = card->dev;
+	struct snd_soc_dai_link *link;
+	struct device_node *np, *codec, *cpu, *node  = dev->of_node;
+	struct apq8016_sbc_data *data;
+	int ret, num_links;
+
+	ret = snd_soc_of_parse_card_name(card, "qcom,model");
+	if (ret) {
+		dev_err(dev, "Error parsing card name: %d\n", ret);
+		return ERR_PTR(ret);
+	}
+
+	/* Populate links */
+	num_links = of_get_child_count(node);
+
+	/* Allocate the private data and the DAI link array */
+	data = devm_kzalloc(dev, sizeof(*data) + sizeof(*link) * num_links,
+			    GFP_KERNEL);
+	if (!data)
+		return ERR_PTR(-ENOMEM);
+
+	card->dai_link	= &data->dai_link[0];
+	card->num_links	= num_links;
+
+	link = data->dai_link;
+
+	for_each_child_of_node(node, np) {
+		cpu = of_get_child_by_name(np, "cpu");
+		codec = of_get_child_by_name(np, "codec");
+
+		if (!cpu || !codec) {
+			dev_err(dev, "Can't find cpu/codec DT node\n");
+			return ERR_PTR(-EINVAL);
+		}
+
+		link->cpu_of_node = of_parse_phandle(cpu, "sound-dai", 0);
+		if (!link->cpu_of_node) {
+			dev_err(card->dev, "error getting cpu phandle\n");
+			return ERR_PTR(-EINVAL);
+		}
+
+		link->codec_of_node = of_parse_phandle(codec, "sound-dai", 0);
+		if (!link->codec_of_node) {
+			dev_err(card->dev, "error getting codec phandle\n");
+			return ERR_PTR(-EINVAL);
+		}
+
+		ret = snd_soc_of_get_dai_name(cpu, &link->cpu_dai_name);
+		if (ret) {
+			dev_err(card->dev, "error getting cpu dai name\n");
+			return ERR_PTR(ret);
+		}
+
+		ret = snd_soc_of_get_dai_name(codec, &link->codec_dai_name);
+		if (ret) {
+			dev_err(card->dev, "error getting codec dai name\n");
+			return ERR_PTR(ret);
+		}
+
+		link->platform_of_node = link->cpu_of_node;
+		/* For now we only support playback */
+		link->playback_only = true;
+
+		ret = of_property_read_string(np, "link-name", &link->name);
+		if (ret) {
+			dev_err(card->dev, "error getting codec dai_link name\n");
+			return ERR_PTR(ret);
+		}
+
+		link->stream_name = link->name;
+		link->init = apq8016_sbc_dai_init;
+		link++;
+	}
+
+	return data;
+}
+
+static int apq8016_sbc_platform_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	struct apq8016_sbc_data *data;
+	struct resource *res;
+
+	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
+	card->dev = dev;
+	data = apq8016_sbc_parse_of(card);
+	if (IS_ERR(data)) {
+		dev_err(&pdev->dev, "Error resolving dai links: %ld\n",
+			PTR_ERR(data));
+		return PTR_ERR(data);
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mic-iomux");
+	data->mic_iomux = devm_ioremap_resource(dev, res);
+	if (IS_ERR(data->mic_iomux))
+		return PTR_ERR(data->mic_iomux);
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "spkr-iomux");
+	data->spkr_iomux = devm_ioremap_resource(dev, res);
+	if (IS_ERR(data->spkr_iomux))
+		return PTR_ERR(data->spkr_iomux);
+
+	platform_set_drvdata(pdev, data);
+	snd_soc_card_set_drvdata(card, data);
+
+	return devm_snd_soc_register_card(&pdev->dev, card);
+}
+
+static const struct of_device_id apq8016_sbc_device_id[]  = {
+	{ .compatible = "qcom,apq8016-sbc-sndcard" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, apq8016_sbc_device_id);
+
+static struct platform_driver apq8016_sbc_platform_driver = {
+	.driver = {
+		.name = "qcom-apq8016-sbc",
+		.of_match_table = of_match_ptr(apq8016_sbc_device_id),
+	},
+	.probe = apq8016_sbc_platform_probe,
+};
+module_platform_driver(apq8016_sbc_platform_driver);
+
+MODULE_AUTHOR("Srinivas Kandagatla <srinivas.kandagatla@linaro.org");
+MODULE_DESCRIPTION("APQ8016 ASoC Machine Driver");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/qcom/storm.c b/sound/soc/qcom/storm.c
index b8bd296190ad..2d833bffdba0 100644
--- a/sound/soc/qcom/storm.c
+++ b/sound/soc/qcom/storm.c
@@ -69,11 +69,6 @@ static struct snd_soc_dai_link storm_dai_link = {
 	.ops		= &storm_soc_ops,
 };
 
-static struct snd_soc_card storm_soc_card = {
-	.name	= "ipq806x-storm",
-	.dev	= NULL,
-};
-
 static int storm_parse_of(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *dai_link = card->dai_link;
@@ -99,14 +94,13 @@ static int storm_parse_of(struct snd_soc_card *card)
 
 static int storm_platform_probe(struct platform_device *pdev)
 {
-	struct snd_soc_card *card = &storm_soc_card;
+	struct snd_soc_card *card;
 	int ret;
 
-	if (card->dev) {
-		dev_err(&pdev->dev, "%s() error, existing soundcard\n",
-				__func__);
-		return -ENODEV;
-	}
+	card = devm_kzalloc(&pdev->dev, sizeof(*card), GFP_KERNEL);
+	if (!card)
+		return -ENOMEM;
+
 	card->dev = &pdev->dev;
 	platform_set_drvdata(pdev, card);
 
@@ -128,16 +122,12 @@ static int storm_platform_probe(struct platform_device *pdev)
 	}
 
 	ret = devm_snd_soc_register_card(&pdev->dev, card);
-	if (ret == -EPROBE_DEFER) {
-		card->dev = NULL;
-		return ret;
-	} else if (ret) {
+	if (ret)
 		dev_err(&pdev->dev, "%s() error registering soundcard: %d\n",
 				__func__, ret);
-		return ret;
-	}
 
-	return 0;
+	return ret;
+
 }
 
 #ifdef CONFIG_OF