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-rw-r--r--drivers/soundwire/bus.c56
-rw-r--r--drivers/soundwire/bus.h3
-rw-r--r--drivers/soundwire/bus_type.c9
-rw-r--r--drivers/soundwire/cadence_master.c80
-rw-r--r--drivers/soundwire/cadence_master.h22
-rw-r--r--drivers/soundwire/debugfs.c13
-rw-r--r--drivers/soundwire/intel.c27
-rw-r--r--drivers/soundwire/intel_auxdevice.c1
-rw-r--r--drivers/soundwire/stream.c38
-rw-r--r--include/linux/soundwire/sdw.h122
-rw-r--r--sound/soc/codecs/rt1316-sdw.c1
-rw-r--r--sound/soc/codecs/rt1318-sdw.c1
-rw-r--r--sound/soc/codecs/rt711-sdca-sdw.c1
13 files changed, 207 insertions, 167 deletions
diff --git a/drivers/soundwire/bus.c b/drivers/soundwire/bus.c
index 76515c33e639..b6aca59c3130 100644
--- a/drivers/soundwire/bus.c
+++ b/drivers/soundwire/bus.c
@@ -225,9 +225,9 @@ static inline int do_transfer(struct sdw_bus *bus, struct sdw_msg *msg)
}
static inline int do_transfer_defer(struct sdw_bus *bus,
- struct sdw_msg *msg,
- struct sdw_defer *defer)
+ struct sdw_msg *msg)
{
+ struct sdw_defer *defer = &bus->defer_msg;
int retry = bus->prop.err_threshold;
enum sdw_command_response resp;
int ret = 0, i;
@@ -237,24 +237,7 @@ static inline int do_transfer_defer(struct sdw_bus *bus,
init_completion(&defer->complete);
for (i = 0; i <= retry; i++) {
- resp = bus->ops->xfer_msg_defer(bus, msg, defer);
- ret = find_response_code(resp);
- /* if cmd is ok or ignored return */
- if (ret == 0 || ret == -ENODATA)
- return ret;
- }
-
- return ret;
-}
-
-static int sdw_reset_page(struct sdw_bus *bus, u16 dev_num)
-{
- int retry = bus->prop.err_threshold;
- enum sdw_command_response resp;
- int ret = 0, i;
-
- for (i = 0; i <= retry; i++) {
- resp = bus->ops->reset_page_addr(bus, dev_num);
+ resp = bus->ops->xfer_msg_defer(bus);
ret = find_response_code(resp);
/* if cmd is ok or ignored return */
if (ret == 0 || ret == -ENODATA)
@@ -275,9 +258,6 @@ static int sdw_transfer_unlocked(struct sdw_bus *bus, struct sdw_msg *msg)
(msg->flags & SDW_MSG_FLAG_WRITE) ? "write" : "read",
msg->addr, msg->len);
- if (msg->page)
- sdw_reset_page(bus, msg->dev_num);
-
return ret;
}
@@ -335,26 +315,21 @@ EXPORT_SYMBOL(sdw_show_ping_status);
* sdw_transfer_defer() - Asynchronously transfer message to a SDW Slave device
* @bus: SDW bus
* @msg: SDW message to be xfered
- * @defer: Defer block for signal completion
*
* Caller needs to hold the msg_lock lock while calling this
*/
-int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg,
- struct sdw_defer *defer)
+int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg)
{
int ret;
if (!bus->ops->xfer_msg_defer)
return -ENOTSUPP;
- ret = do_transfer_defer(bus, msg, defer);
+ ret = do_transfer_defer(bus, msg);
if (ret != 0 && ret != -ENODATA)
dev_err(bus->dev, "Defer trf on Slave %d failed:%d\n",
msg->dev_num, ret);
- if (msg->page)
- sdw_reset_page(bus, msg->dev_num);
-
return ret;
}
@@ -414,8 +389,7 @@ int sdw_fill_msg(struct sdw_msg *msg, struct sdw_slave *slave,
* all clients need to use the pm versions
*/
-static int
-sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
+int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
{
struct sdw_msg msg;
int ret;
@@ -430,9 +404,9 @@ sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
ret = 0;
return ret;
}
+EXPORT_SYMBOL(sdw_nread_no_pm);
-static int
-sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
+int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
{
struct sdw_msg msg;
int ret;
@@ -447,6 +421,7 @@ sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
ret = 0;
return ret;
}
+EXPORT_SYMBOL(sdw_nwrite_no_pm);
int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value)
{
@@ -1214,7 +1189,7 @@ int sdw_configure_dpn_intr(struct sdw_slave *slave,
val &= ~SDW_DPN_INT_PORT_READY;
}
- ret = sdw_update(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val);
+ ret = sdw_update_no_pm(slave, addr, (mask | SDW_DPN_INT_PORT_READY), val);
if (ret < 0)
dev_err(&slave->dev,
"SDW_DPN_INTMASK write failed:%d\n", val);
@@ -1233,10 +1208,11 @@ static int sdw_slave_set_frequency(struct sdw_slave *slave)
/*
* frequency base and scale registers are required for SDCA
- * devices. They may also be used for 1.2+/non-SDCA devices,
- * but we will need a DisCo property to cover this case
+ * devices. They may also be used for 1.2+/non-SDCA devices.
+ * Driver can set the property, we will need a DisCo property
+ * to discover this case from platform firmware.
*/
- if (!slave->id.class_id)
+ if (!slave->id.class_id && !slave->prop.clock_reg_supported)
return 0;
if (!mclk_freq) {
@@ -1587,7 +1563,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
goto io_err;
}
- if (slave->prop.is_sdca) {
+ if (slave->id.class_id) {
ret = sdw_read_no_pm(slave, SDW_DP0_INT);
if (ret < 0) {
dev_err(&slave->dev,
@@ -1724,7 +1700,7 @@ static int sdw_handle_slave_alerts(struct sdw_slave *slave)
goto io_err;
}
- if (slave->prop.is_sdca) {
+ if (slave->id.class_id) {
ret = sdw_read_no_pm(slave, SDW_DP0_INT);
if (ret < 0) {
dev_err(&slave->dev,
diff --git a/drivers/soundwire/bus.h b/drivers/soundwire/bus.h
index 7631ef5e71fb..96927a143796 100644
--- a/drivers/soundwire/bus.h
+++ b/drivers/soundwire/bus.h
@@ -151,8 +151,7 @@ int sdw_configure_dpn_intr(struct sdw_slave *slave, int port,
bool enable, int mask);
int sdw_transfer(struct sdw_bus *bus, struct sdw_msg *msg);
-int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg,
- struct sdw_defer *defer);
+int sdw_transfer_defer(struct sdw_bus *bus, struct sdw_msg *msg);
#define SDW_READ_INTR_CLEAR_RETRY 10
diff --git a/drivers/soundwire/bus_type.c b/drivers/soundwire/bus_type.c
index 26c9a0a85d49..1f43ee848eac 100644
--- a/drivers/soundwire/bus_type.c
+++ b/drivers/soundwire/bus_type.c
@@ -105,20 +105,19 @@ static int sdw_drv_probe(struct device *dev)
if (ret)
return ret;
- mutex_lock(&slave->sdw_dev_lock);
-
ret = drv->probe(slave, id);
if (ret) {
name = drv->name;
if (!name)
name = drv->driver.name;
- mutex_unlock(&slave->sdw_dev_lock);
dev_err(dev, "Probe of %s failed: %d\n", name, ret);
dev_pm_domain_detach(dev, false);
return ret;
}
+ mutex_lock(&slave->sdw_dev_lock);
+
/* device is probed so let's read the properties now */
if (drv->ops && drv->ops->read_prop)
drv->ops->read_prop(slave);
@@ -167,14 +166,12 @@ static int sdw_drv_remove(struct device *dev)
int ret = 0;
mutex_lock(&slave->sdw_dev_lock);
-
slave->probed = false;
+ mutex_unlock(&slave->sdw_dev_lock);
if (drv->remove)
ret = drv->remove(slave);
- mutex_unlock(&slave->sdw_dev_lock);
-
dev_pm_domain_detach(dev, false);
return ret;
diff --git a/drivers/soundwire/cadence_master.c b/drivers/soundwire/cadence_master.c
index a1de363eba3f..e835dabb516c 100644
--- a/drivers/soundwire/cadence_master.c
+++ b/drivers/soundwire/cadence_master.c
@@ -127,7 +127,8 @@ MODULE_PARM_DESC(cdns_mcp_int_mask, "Cadence MCP IntMask");
#define CDNS_MCP_CMD_BASE 0x80
#define CDNS_MCP_RESP_BASE 0x80
-#define CDNS_MCP_CMD_LEN 0x20
+/* FIFO can hold 8 commands */
+#define CDNS_MCP_CMD_LEN 8
#define CDNS_MCP_CMD_WORD_LEN 0x4
#define CDNS_MCP_CMD_SSP_TAG BIT(31)
@@ -554,6 +555,29 @@ cdns_fill_msg_resp(struct sdw_cdns *cdns,
return SDW_CMD_OK;
}
+static void cdns_read_response(struct sdw_cdns *cdns)
+{
+ u32 num_resp, cmd_base;
+ int i;
+
+ /* RX_FIFO_AVAIL can be 2 entries more than the FIFO size */
+ BUILD_BUG_ON(ARRAY_SIZE(cdns->response_buf) < CDNS_MCP_CMD_LEN + 2);
+
+ num_resp = cdns_readl(cdns, CDNS_MCP_FIFOSTAT);
+ num_resp &= CDNS_MCP_RX_FIFO_AVAIL;
+ if (num_resp > ARRAY_SIZE(cdns->response_buf)) {
+ dev_warn(cdns->dev, "RX AVAIL %d too long\n", num_resp);
+ num_resp = ARRAY_SIZE(cdns->response_buf);
+ }
+
+ cmd_base = CDNS_MCP_CMD_BASE;
+
+ for (i = 0; i < num_resp; i++) {
+ cdns->response_buf[i] = cdns_readl(cdns, cmd_base);
+ cmd_base += CDNS_MCP_CMD_WORD_LEN;
+ }
+}
+
static enum sdw_command_response
_cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
int offset, int count, bool defer)
@@ -595,6 +619,10 @@ _cdns_xfer_msg(struct sdw_cdns *cdns, struct sdw_msg *msg, int cmd,
dev_err(cdns->dev, "IO transfer timed out, cmd %d device %d addr %x len %d\n",
cmd, msg->dev_num, msg->addr, msg->len);
msg->len = 0;
+
+ /* Drain anything in the RX_FIFO */
+ cdns_read_response(cdns);
+
return SDW_CMD_TIMEOUT;
}
@@ -721,10 +749,11 @@ cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg)
EXPORT_SYMBOL(cdns_xfer_msg);
enum sdw_command_response
-cdns_xfer_msg_defer(struct sdw_bus *bus,
- struct sdw_msg *msg, struct sdw_defer *defer)
+cdns_xfer_msg_defer(struct sdw_bus *bus)
{
struct sdw_cdns *cdns = bus_to_cdns(bus);
+ struct sdw_defer *defer = &bus->defer_msg;
+ struct sdw_msg *msg = defer->msg;
int cmd = 0, ret;
/* for defer only 1 message is supported */
@@ -735,27 +764,10 @@ cdns_xfer_msg_defer(struct sdw_bus *bus,
if (ret)
return SDW_CMD_FAIL_OTHER;
- cdns->defer = defer;
- cdns->defer->length = msg->len;
-
return _cdns_xfer_msg(cdns, msg, cmd, 0, msg->len, true);
}
EXPORT_SYMBOL(cdns_xfer_msg_defer);
-enum sdw_command_response
-cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num)
-{
- struct sdw_cdns *cdns = bus_to_cdns(bus);
- struct sdw_msg msg;
-
- /* Create dummy message with valid device number */
- memset(&msg, 0, sizeof(msg));
- msg.dev_num = dev_num;
-
- return cdns_program_scp_addr(cdns, &msg);
-}
-EXPORT_SYMBOL(cdns_reset_page_addr);
-
u32 cdns_read_ping_status(struct sdw_bus *bus)
{
struct sdw_cdns *cdns = bus_to_cdns(bus);
@@ -768,22 +780,6 @@ EXPORT_SYMBOL(cdns_read_ping_status);
* IRQ handling
*/
-static void cdns_read_response(struct sdw_cdns *cdns)
-{
- u32 num_resp, cmd_base;
- int i;
-
- num_resp = cdns_readl(cdns, CDNS_MCP_FIFOSTAT);
- num_resp &= CDNS_MCP_RX_FIFO_AVAIL;
-
- cmd_base = CDNS_MCP_CMD_BASE;
-
- for (i = 0; i < num_resp; i++) {
- cdns->response_buf[i] = cdns_readl(cdns, cmd_base);
- cmd_base += CDNS_MCP_CMD_WORD_LEN;
- }
-}
-
static int cdns_update_slave_status(struct sdw_cdns *cdns,
u64 slave_intstat)
{
@@ -881,13 +877,15 @@ irqreturn_t sdw_cdns_irq(int irq, void *dev_id)
return IRQ_NONE;
if (int_status & CDNS_MCP_INT_RX_WL) {
+ struct sdw_bus *bus = &cdns->bus;
+ struct sdw_defer *defer = &bus->defer_msg;
+
cdns_read_response(cdns);
- if (cdns->defer) {
- cdns_fill_msg_resp(cdns, cdns->defer->msg,
- cdns->defer->length, 0);
- complete(&cdns->defer->complete);
- cdns->defer = NULL;
+ if (defer && defer->msg) {
+ cdns_fill_msg_resp(cdns, defer->msg,
+ defer->length, 0);
+ complete(&defer->complete);
} else {
complete(&cdns->tx_complete);
}
diff --git a/drivers/soundwire/cadence_master.h b/drivers/soundwire/cadence_master.h
index 0434d70d4b1f..dec0b4f993c1 100644
--- a/drivers/soundwire/cadence_master.h
+++ b/drivers/soundwire/cadence_master.h
@@ -8,6 +8,12 @@
#define SDW_CADENCE_GSYNC_KHZ 4 /* 4 kHz */
#define SDW_CADENCE_GSYNC_HZ (SDW_CADENCE_GSYNC_KHZ * 1000)
+/*
+ * The Cadence IP supports up to 32 entries in the FIFO, though implementations
+ * can configure the IP to have a smaller FIFO.
+ */
+#define CDNS_MCP_IP_MAX_CMD_LEN 32
+
/**
* struct sdw_cdns_pdi: PDI (Physical Data Interface) instance
*
@@ -103,7 +109,6 @@ struct sdw_cdns_dai_runtime {
* @instance: instance number
* @response_buf: SoundWire response buffer
* @tx_complete: Tx completion
- * @defer: Defer pointer
* @ports: Data ports
* @num_ports: Total number of data ports
* @pcm: PCM streams
@@ -117,9 +122,13 @@ struct sdw_cdns {
struct sdw_bus bus;
unsigned int instance;
- u32 response_buf[0x80];
+ /*
+ * The datasheet says the RX FIFO AVAIL can be 2 entries more
+ * than the FIFO capacity, so allow for this.
+ */
+ u32 response_buf[CDNS_MCP_IP_MAX_CMD_LEN + 2];
+
struct completion tx_complete;
- struct sdw_defer *defer;
struct sdw_cdns_port *ports;
int num_ports;
@@ -147,7 +156,6 @@ struct sdw_cdns {
/* Exported symbols */
int sdw_cdns_probe(struct sdw_cdns *cdns);
-extern struct sdw_master_ops sdw_cdns_master_ops;
irqreturn_t sdw_cdns_irq(int irq, void *dev_id);
irqreturn_t sdw_cdns_thread(int irq, void *dev_id);
@@ -173,14 +181,10 @@ void sdw_cdns_config_stream(struct sdw_cdns *cdns,
u32 ch, u32 dir, struct sdw_cdns_pdi *pdi);
enum sdw_command_response
-cdns_reset_page_addr(struct sdw_bus *bus, unsigned int dev_num);
-
-enum sdw_command_response
cdns_xfer_msg(struct sdw_bus *bus, struct sdw_msg *msg);
enum sdw_command_response
-cdns_xfer_msg_defer(struct sdw_bus *bus,
- struct sdw_msg *msg, struct sdw_defer *defer);
+cdns_xfer_msg_defer(struct sdw_bus *bus);
u32 cdns_read_ping_status(struct sdw_bus *bus);
diff --git a/drivers/soundwire/debugfs.c b/drivers/soundwire/debugfs.c
index 49900cd207bc..dea782e0edc4 100644
--- a/drivers/soundwire/debugfs.c
+++ b/drivers/soundwire/debugfs.c
@@ -4,6 +4,7 @@
#include <linux/device.h>
#include <linux/debugfs.h>
#include <linux/mod_devicetable.h>
+#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/soundwire/sdw.h>
#include <linux/soundwire/sdw_registers.h>
@@ -35,7 +36,7 @@ static ssize_t sdw_sprintf(struct sdw_slave *slave,
{
int value;
- value = sdw_read(slave, reg);
+ value = sdw_read_no_pm(slave, reg);
if (value < 0)
return scnprintf(buf + pos, RD_BUF - pos, "%3x\tXX\n", reg);
@@ -55,6 +56,12 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
if (!buf)
return -ENOMEM;
+ ret = pm_runtime_resume_and_get(&slave->dev);
+ if (ret < 0 && ret != -EACCES) {
+ kfree(buf);
+ return ret;
+ }
+
ret = scnprintf(buf, RD_BUF, "Register Value\n");
/* DP0 non-banked registers */
@@ -112,6 +119,10 @@ static int sdw_slave_reg_show(struct seq_file *s_file, void *data)
}
seq_printf(s_file, "%s", buf);
+
+ pm_runtime_mark_last_busy(&slave->dev);
+ pm_runtime_put(&slave->dev);
+
kfree(buf);
return 0;
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index bc9c50bacc49..2651767272c7 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -778,22 +778,6 @@ unlock:
* DAI routines
*/
-static int intel_startup(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
- int ret;
-
- ret = pm_runtime_resume_and_get(cdns->dev);
- if (ret < 0 && ret != -EACCES) {
- dev_err_ratelimited(cdns->dev,
- "pm_runtime_resume_and_get failed in %s, ret %d\n",
- __func__, ret);
- return ret;
- }
- return 0;
-}
-
static int intel_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params,
struct snd_soc_dai *dai)
@@ -954,15 +938,6 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
return 0;
}
-static void intel_shutdown(struct snd_pcm_substream *substream,
- struct snd_soc_dai *dai)
-{
- struct sdw_cdns *cdns = snd_soc_dai_get_drvdata(dai);
-
- pm_runtime_mark_last_busy(cdns->dev);
- pm_runtime_put_autosuspend(cdns->dev);
-}
-
static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
void *stream, int direction)
{
@@ -1088,12 +1063,10 @@ static int intel_component_dais_suspend(struct snd_soc_component *component)
}
static const struct snd_soc_dai_ops intel_pcm_dai_ops = {
- .startup = intel_startup,
.hw_params = intel_hw_params,
.prepare = intel_prepare,
.hw_free = intel_hw_free,
.trigger = intel_trigger,
- .shutdown = intel_shutdown,
.set_stream = intel_pcm_set_sdw_stream,
.get_stream = intel_get_sdw_stream,
};
diff --git a/drivers/soundwire/intel_auxdevice.c b/drivers/soundwire/intel_auxdevice.c
index 96c6b2112feb..5021be0f4158 100644
--- a/drivers/soundwire/intel_auxdevice.c
+++ b/drivers/soundwire/intel_auxdevice.c
@@ -113,7 +113,6 @@ static struct sdw_master_ops sdw_intel_ops = {
.override_adr = sdw_dmi_override_adr,
.xfer_msg = cdns_xfer_msg,
.xfer_msg_defer = cdns_xfer_msg_defer,
- .reset_page_addr = cdns_reset_page_addr,
.set_bus_conf = cdns_bus_conf,
.pre_bank_switch = generic_pre_bank_switch,
.post_bank_switch = generic_post_bank_switch,
diff --git a/drivers/soundwire/stream.c b/drivers/soundwire/stream.c
index 55cace1fd77b..8c6da1739e3d 100644
--- a/drivers/soundwire/stream.c
+++ b/drivers/soundwire/stream.c
@@ -81,14 +81,14 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus,
}
/* Program DPN_OffsetCtrl2 registers */
- ret = sdw_write(slave, addr1, t_params->offset2);
+ ret = sdw_write_no_pm(slave, addr1, t_params->offset2);
if (ret < 0) {
dev_err(bus->dev, "DPN_OffsetCtrl2 register write failed\n");
return ret;
}
/* Program DPN_BlockCtrl3 register */
- ret = sdw_write(slave, addr2, t_params->blk_pkg_mode);
+ ret = sdw_write_no_pm(slave, addr2, t_params->blk_pkg_mode);
if (ret < 0) {
dev_err(bus->dev, "DPN_BlockCtrl3 register write failed\n");
return ret;
@@ -105,7 +105,7 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus,
/* Program DPN_SampleCtrl2 register */
wbuf = FIELD_GET(SDW_DPN_SAMPLECTRL_HIGH, t_params->sample_interval - 1);
- ret = sdw_write(slave, addr3, wbuf);
+ ret = sdw_write_no_pm(slave, addr3, wbuf);
if (ret < 0) {
dev_err(bus->dev, "DPN_SampleCtrl2 register write failed\n");
return ret;
@@ -115,7 +115,7 @@ static int _sdw_program_slave_port_params(struct sdw_bus *bus,
wbuf = FIELD_PREP(SDW_DPN_HCTRL_HSTART, t_params->hstart);
wbuf |= FIELD_PREP(SDW_DPN_HCTRL_HSTOP, t_params->hstop);
- ret = sdw_write(slave, addr4, wbuf);
+ ret = sdw_write_no_pm(slave, addr4, wbuf);
if (ret < 0)
dev_err(bus->dev, "DPN_HCtrl register write failed\n");
@@ -163,7 +163,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
wbuf = FIELD_PREP(SDW_DPN_PORTCTRL_DATAMODE, p_params->data_mode);
wbuf |= FIELD_PREP(SDW_DPN_PORTCTRL_FLOWMODE, p_params->flow_mode);
- ret = sdw_update(s_rt->slave, addr1, 0xF, wbuf);
+ ret = sdw_update_no_pm(s_rt->slave, addr1, 0xF, wbuf);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_PortCtrl register write failed for port %d\n",
@@ -173,7 +173,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
if (!dpn_prop->read_only_wordlength) {
/* Program DPN_BlockCtrl1 register */
- ret = sdw_write(s_rt->slave, addr2, (p_params->bps - 1));
+ ret = sdw_write_no_pm(s_rt->slave, addr2, (p_params->bps - 1));
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_BlockCtrl1 register write failed for port %d\n",
@@ -184,7 +184,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
/* Program DPN_SampleCtrl1 register */
wbuf = (t_params->sample_interval - 1) & SDW_DPN_SAMPLECTRL_LOW;
- ret = sdw_write(s_rt->slave, addr3, wbuf);
+ ret = sdw_write_no_pm(s_rt->slave, addr3, wbuf);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_SampleCtrl1 register write failed for port %d\n",
@@ -193,7 +193,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
}
/* Program DPN_OffsetCtrl1 registers */
- ret = sdw_write(s_rt->slave, addr4, t_params->offset1);
+ ret = sdw_write_no_pm(s_rt->slave, addr4, t_params->offset1);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_OffsetCtrl1 register write failed for port %d\n",
@@ -203,7 +203,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
/* Program DPN_BlockCtrl2 register*/
if (t_params->blk_grp_ctrl_valid) {
- ret = sdw_write(s_rt->slave, addr5, t_params->blk_grp_ctrl);
+ ret = sdw_write_no_pm(s_rt->slave, addr5, t_params->blk_grp_ctrl);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_BlockCtrl2 reg write failed for port %d\n",
@@ -214,7 +214,7 @@ static int sdw_program_slave_port_params(struct sdw_bus *bus,
/* program DPN_LaneCtrl register */
if (slave_prop->lane_control_support) {
- ret = sdw_write(s_rt->slave, addr6, t_params->lane_ctrl);
+ ret = sdw_write_no_pm(s_rt->slave, addr6, t_params->lane_ctrl);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
"DPN_LaneCtrl register write failed for port %d\n",
@@ -319,9 +319,9 @@ static int sdw_enable_disable_slave_ports(struct sdw_bus *bus,
* it is safe to reset this register
*/
if (en)
- ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask);
+ ret = sdw_write_no_pm(s_rt->slave, addr, p_rt->ch_mask);
else
- ret = sdw_write(s_rt->slave, addr, 0x0);
+ ret = sdw_write_no_pm(s_rt->slave, addr, 0x0);
if (ret < 0)
dev_err(&s_rt->slave->dev,
@@ -476,9 +476,9 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus,
addr = SDW_DPN_PREPARECTRL(p_rt->num);
if (prep)
- ret = sdw_write(s_rt->slave, addr, p_rt->ch_mask);
+ ret = sdw_write_no_pm(s_rt->slave, addr, p_rt->ch_mask);
else
- ret = sdw_write(s_rt->slave, addr, 0x0);
+ ret = sdw_write_no_pm(s_rt->slave, addr, 0x0);
if (ret < 0) {
dev_err(&s_rt->slave->dev,
@@ -491,7 +491,7 @@ static int sdw_prep_deprep_slave_ports(struct sdw_bus *bus,
wait_for_completion_timeout(port_ready,
msecs_to_jiffies(dpn_prop->ch_prep_timeout));
- val = sdw_read(s_rt->slave, SDW_DPN_PREPARESTATUS(p_rt->num));
+ val = sdw_read_no_pm(s_rt->slave, SDW_DPN_PREPARESTATUS(p_rt->num));
if ((val < 0) || (val & p_rt->ch_mask)) {
ret = (val < 0) ? val : -ETIMEDOUT;
dev_err(&s_rt->slave->dev,
@@ -684,8 +684,6 @@ static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
if (!wr_msg)
return -ENOMEM;
- bus->defer_msg.msg = wr_msg;
-
wbuf = kzalloc(sizeof(*wbuf), GFP_KERNEL);
if (!wbuf) {
ret = -ENOMEM;
@@ -713,7 +711,7 @@ static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
multi_link = bus->multi_link && (m_rt_count >= bus->hw_sync_min_links);
if (multi_link)
- ret = sdw_transfer_defer(bus, wr_msg, &bus->defer_msg);
+ ret = sdw_transfer_defer(bus, wr_msg);
else
ret = sdw_transfer(bus, wr_msg);
@@ -723,8 +721,8 @@ static int sdw_bank_switch(struct sdw_bus *bus, int m_rt_count)
}
if (!multi_link) {
- kfree(wr_msg);
kfree(wbuf);
+ kfree(wr_msg);
bus->defer_msg.msg = NULL;
bus->params.curr_bank = !bus->params.curr_bank;
bus->params.next_bank = !bus->params.next_bank;
@@ -769,6 +767,7 @@ static int sdw_ml_sync_bank_switch(struct sdw_bus *bus)
if (bus->defer_msg.msg) {
kfree(bus->defer_msg.msg->buf);
kfree(bus->defer_msg.msg);
+ bus->defer_msg.msg = NULL;
}
return 0;
@@ -867,6 +866,7 @@ error:
if (bus->defer_msg.msg) {
kfree(bus->defer_msg.msg->buf);
kfree(bus->defer_msg.msg);
+ bus->defer_msg.msg = NULL;
}
}
diff --git a/include/linux/soundwire/sdw.h b/include/linux/soundwire/sdw.h
index 7d9fbf9359e4..ef645de13ae9 100644
--- a/include/linux/soundwire/sdw.h
+++ b/include/linux/soundwire/sdw.h
@@ -4,6 +4,7 @@
#ifndef __SOUNDWIRE_H
#define __SOUNDWIRE_H
+#include <linux/bug.h>
#include <linux/mod_devicetable.h>
#include <linux/bitfield.h>
@@ -365,7 +366,9 @@ struct sdw_dpn_prop {
* @sink_dpn_prop: Sink Data Port N properties
* @scp_int1_mask: SCP_INT1_MASK desired settings
* @quirks: bitmask identifying deltas from the MIPI specification
- * @is_sdca: the Slave supports the SDCA specification
+ * @clock_reg_supported: the Peripheral implements the clock base and scale
+ * registers introduced with the SoundWire 1.2 specification. SDCA devices
+ * do not need to set this boolean property as the registers are required.
*/
struct sdw_slave_prop {
u32 mipi_revision;
@@ -389,7 +392,7 @@ struct sdw_slave_prop {
struct sdw_dpn_prop *sink_dpn_prop;
u8 scp_int1_mask;
u32 quirks;
- bool is_sdca;
+ bool clock_reg_supported;
};
#define SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY BIT(0)
@@ -836,8 +839,8 @@ struct sdw_defer {
* @read_prop: Read Master properties
* @override_adr: Override value read from firmware (quirk for buggy firmware)
* @xfer_msg: Transfer message callback
- * @xfer_msg_defer: Defer version of transfer message callback
- * @reset_page_addr: Reset the SCP page address registers
+ * @xfer_msg_defer: Defer version of transfer message callback. The message is handled with the
+ * bus struct @sdw_defer
* @set_bus_conf: Set the bus configuration
* @pre_bank_switch: Callback for pre bank switch
* @post_bank_switch: Callback for post bank switch
@@ -851,10 +854,7 @@ struct sdw_master_ops {
enum sdw_command_response (*xfer_msg)
(struct sdw_bus *bus, struct sdw_msg *msg);
enum sdw_command_response (*xfer_msg_defer)
- (struct sdw_bus *bus, struct sdw_msg *msg,
- struct sdw_defer *defer);
- enum sdw_command_response (*reset_page_addr)
- (struct sdw_bus *bus, unsigned int dev_num);
+ (struct sdw_bus *bus);
int (*set_bus_conf)(struct sdw_bus *bus,
struct sdw_bus_params *params);
int (*pre_bank_switch)(struct sdw_bus *bus);
@@ -1023,15 +1023,8 @@ int sdw_stream_add_master(struct sdw_bus *bus,
struct sdw_port_config *port_config,
unsigned int num_ports,
struct sdw_stream_runtime *stream);
-int sdw_stream_add_slave(struct sdw_slave *slave,
- struct sdw_stream_config *stream_config,
- struct sdw_port_config *port_config,
- unsigned int num_ports,
- struct sdw_stream_runtime *stream);
int sdw_stream_remove_master(struct sdw_bus *bus,
struct sdw_stream_runtime *stream);
-int sdw_stream_remove_slave(struct sdw_slave *slave,
- struct sdw_stream_runtime *stream);
int sdw_startup_stream(void *sdw_substream);
int sdw_prepare_stream(struct sdw_stream_runtime *stream);
int sdw_enable_stream(struct sdw_stream_runtime *stream);
@@ -1042,18 +1035,111 @@ int sdw_bus_prep_clk_stop(struct sdw_bus *bus);
int sdw_bus_clk_stop(struct sdw_bus *bus);
int sdw_bus_exit_clk_stop(struct sdw_bus *bus);
-/* messaging and data APIs */
+int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
+void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);
+#if IS_ENABLED(CONFIG_SOUNDWIRE)
+
+int sdw_stream_add_slave(struct sdw_slave *slave,
+ struct sdw_stream_config *stream_config,
+ struct sdw_port_config *port_config,
+ unsigned int num_ports,
+ struct sdw_stream_runtime *stream);
+int sdw_stream_remove_slave(struct sdw_slave *slave,
+ struct sdw_stream_runtime *stream);
+
+/* messaging and data APIs */
int sdw_read(struct sdw_slave *slave, u32 addr);
int sdw_write(struct sdw_slave *slave, u32 addr, u8 value);
int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value);
int sdw_read_no_pm(struct sdw_slave *slave, u32 addr);
int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
+int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val);
int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val);
+int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val);
int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val);
-int sdw_compare_devid(struct sdw_slave *slave, struct sdw_slave_id id);
-void sdw_extract_slave_id(struct sdw_bus *bus, u64 addr, struct sdw_slave_id *id);
+#else
+
+static inline int sdw_stream_add_slave(struct sdw_slave *slave,
+ struct sdw_stream_config *stream_config,
+ struct sdw_port_config *port_config,
+ unsigned int num_ports,
+ struct sdw_stream_runtime *stream)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_stream_remove_slave(struct sdw_slave *slave,
+ struct sdw_stream_runtime *stream)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+/* messaging and data APIs */
+static inline int sdw_read(struct sdw_slave *slave, u32 addr)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_write(struct sdw_slave *slave, u32 addr, u8 value)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_write_no_pm(struct sdw_slave *slave, u32 addr, u8 value)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_read_no_pm(struct sdw_slave *slave, u32 addr)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_nread(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_nread_no_pm(struct sdw_slave *slave, u32 addr, size_t count, u8 *val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_nwrite(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_nwrite_no_pm(struct sdw_slave *slave, u32 addr, size_t count, const u8 *val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_update(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+static inline int sdw_update_no_pm(struct sdw_slave *slave, u32 addr, u8 mask, u8 val)
+{
+ WARN_ONCE(1, "SoundWire API is disabled");
+ return -EINVAL;
+}
+
+#endif /* CONFIG_SOUNDWIRE */
#endif /* __SOUNDWIRE_H */
diff --git a/sound/soc/codecs/rt1316-sdw.c b/sound/soc/codecs/rt1316-sdw.c
index 91edfd5eee08..b45121ee7533 100644
--- a/sound/soc/codecs/rt1316-sdw.c
+++ b/sound/soc/codecs/rt1316-sdw.c
@@ -204,7 +204,6 @@ static int rt1316_read_prop(struct sdw_slave *slave)
prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
- prop->is_sdca = true;
prop->paging_support = true;
diff --git a/sound/soc/codecs/rt1318-sdw.c b/sound/soc/codecs/rt1318-sdw.c
index c34975f958c4..c32d8ae77981 100644
--- a/sound/soc/codecs/rt1318-sdw.c
+++ b/sound/soc/codecs/rt1318-sdw.c
@@ -353,7 +353,6 @@ static int rt1318_read_prop(struct sdw_slave *slave)
prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
- prop->is_sdca = true;
prop->paging_support = true;
diff --git a/sound/soc/codecs/rt711-sdca-sdw.c b/sound/soc/codecs/rt711-sdca-sdw.c
index e23cec4c457d..51f3335343e0 100644
--- a/sound/soc/codecs/rt711-sdca-sdw.c
+++ b/sound/soc/codecs/rt711-sdca-sdw.c
@@ -186,7 +186,6 @@ static int rt711_sdca_read_prop(struct sdw_slave *slave)
prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
- prop->is_sdca = true;
prop->paging_support = true;