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path: root/sound/soc/stm/stm32_adfsdm.c
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Diffstat (limited to 'sound/soc/stm/stm32_adfsdm.c')
-rw-r--r--sound/soc/stm/stm32_adfsdm.c84
1 files changed, 56 insertions, 28 deletions
diff --git a/sound/soc/stm/stm32_adfsdm.c b/sound/soc/stm/stm32_adfsdm.c
index 16ff02953015..1797a91fea7a 100644
--- a/sound/soc/stm/stm32_adfsdm.c
+++ b/sound/soc/stm/stm32_adfsdm.c
@@ -12,7 +12,7 @@
#include <linux/mutex.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
-
+#include <linux/pm_runtime.h>
#include <linux/iio/iio.h>
#include <linux/iio/consumer.h>
#include <linux/iio/adc/stm32-dfsdm-adc.h>
@@ -47,9 +47,6 @@ static const struct snd_pcm_hardware stm32_adfsdm_pcm_hw = {
SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_PAUSE,
.formats = SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S32_LE,
- .rate_min = 8000,
- .rate_max = 32000,
-
.channels_min = 1,
.channels_max = 1,
@@ -120,7 +117,7 @@ static int stm32_adfsdm_set_sysclk(struct snd_soc_dai *dai, int clk_id,
/* Set IIO frequency if CODEC is master as clock comes from SPI_IN */
- snprintf(str_freq, sizeof(str_freq), "%d\n", freq);
+ snprintf(str_freq, sizeof(str_freq), "%u\n", freq);
size = iio_write_channel_ext_info(priv->iio_ch, "spi_clk_freq",
str_freq, sizeof(str_freq));
if (size != sizeof(str_freq)) {
@@ -143,14 +140,16 @@ static const struct snd_soc_dai_driver stm32_adfsdm_dai = {
.channels_max = 1,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S32_LE,
- .rates = (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_16000 |
- SNDRV_PCM_RATE_32000),
+ .rates = SNDRV_PCM_RATE_CONTINUOUS,
+ .rate_min = 8000,
+ .rate_max = 192000,
},
.ops = &stm32_adfsdm_dai_ops,
};
static const struct snd_soc_component_driver stm32_adfsdm_dai_component = {
.name = "stm32_dfsdm_audio",
+ .legacy_dai_naming = 1,
};
static void stm32_memcpy_32to16(void *dest, const void *src, size_t n)
@@ -168,7 +167,7 @@ static void stm32_memcpy_32to16(void *dest, const void *src, size_t n)
static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private)
{
struct stm32_adfsdm_priv *priv = private;
- struct snd_soc_pcm_runtime *rtd = priv->substream->private_data;
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(priv->substream);
u8 *pcm_buff = priv->pcm_buff;
u8 *src_buff = (u8 *)data;
unsigned int old_pos = priv->pos;
@@ -181,7 +180,7 @@ static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private)
src_size >>= 1;
cur_size = src_size;
- dev_dbg(rtd->dev, "%s: buff_add :%pK, pos = %d, size = %zu\n",
+ dev_dbg(rtd->dev, "%s: buff_add :%p, pos = %d, size = %zu\n",
__func__, &pcm_buff[priv->pos], priv->pos, src_size);
if ((priv->pos + src_size) > buff_size) {
@@ -213,9 +212,9 @@ static int stm32_afsdm_pcm_cb(const void *data, size_t size, void *private)
static int stm32_adfsdm_trigger(struct snd_soc_component *component,
struct snd_pcm_substream *substream, int cmd)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct stm32_adfsdm_priv *priv =
- snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
switch (cmd) {
case SNDRV_PCM_TRIGGER_START:
@@ -234,8 +233,8 @@ static int stm32_adfsdm_trigger(struct snd_soc_component *component,
static int stm32_adfsdm_pcm_open(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
- struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+ struct stm32_adfsdm_priv *priv = snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
int ret;
ret = snd_soc_set_runtime_hwparams(substream, &stm32_adfsdm_pcm_hw);
@@ -248,9 +247,9 @@ static int stm32_adfsdm_pcm_open(struct snd_soc_component *component,
static int stm32_adfsdm_pcm_close(struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct stm32_adfsdm_priv *priv =
- snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
priv->substream = NULL;
@@ -261,9 +260,9 @@ static snd_pcm_uframes_t stm32_adfsdm_pcm_pointer(
struct snd_soc_component *component,
struct snd_pcm_substream *substream)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct stm32_adfsdm_priv *priv =
- snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
return bytes_to_frames(substream->runtime, priv->pos);
}
@@ -272,9 +271,9 @@ static int stm32_adfsdm_pcm_hw_params(struct snd_soc_component *component,
struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params)
{
- struct snd_soc_pcm_runtime *rtd = substream->private_data;
+ struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
struct stm32_adfsdm_priv *priv =
- snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
priv->pcm_buff = substream->runtime->dma_area;
@@ -287,7 +286,7 @@ static int stm32_adfsdm_pcm_new(struct snd_soc_component *component,
{
struct snd_pcm *pcm = rtd->pcm;
struct stm32_adfsdm_priv *priv =
- snd_soc_dai_get_drvdata(asoc_rtd_to_cpu(rtd, 0));
+ snd_soc_dai_get_drvdata(snd_soc_rtd_to_cpu(rtd, 0));
unsigned int size = DFSDM_MAX_PERIODS * DFSDM_MAX_PERIOD_SIZE;
snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV,
@@ -295,7 +294,22 @@ static int stm32_adfsdm_pcm_new(struct snd_soc_component *component,
return 0;
}
-static struct snd_soc_component_driver stm32_adfsdm_soc_platform = {
+static int stm32_adfsdm_dummy_cb(const void *data, void *private)
+{
+ /*
+ * This dummy callback is requested by iio_channel_get_all_cb() API,
+ * but the stm32_dfsdm_get_buff_cb() API is used instead, to optimize
+ * DMA transfers.
+ */
+ return 0;
+}
+
+static void stm32_adfsdm_cleanup(void *data)
+{
+ iio_channel_release_all_cb(data);
+}
+
+static const struct snd_soc_component_driver stm32_adfsdm_soc_platform = {
.open = stm32_adfsdm_pcm_open,
.close = stm32_adfsdm_pcm_close,
.hw_params = stm32_adfsdm_pcm_hw_params,
@@ -337,31 +351,45 @@ static int stm32_adfsdm_probe(struct platform_device *pdev)
if (IS_ERR(priv->iio_ch))
return PTR_ERR(priv->iio_ch);
- priv->iio_cb = iio_channel_get_all_cb(&pdev->dev, NULL, NULL);
+ priv->iio_cb = iio_channel_get_all_cb(&pdev->dev, &stm32_adfsdm_dummy_cb, NULL);
if (IS_ERR(priv->iio_cb))
return PTR_ERR(priv->iio_cb);
+ ret = devm_add_action_or_reset(&pdev->dev, stm32_adfsdm_cleanup, priv->iio_cb);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "Unable to add action\n");
+ return ret;
+ }
+
component = devm_kzalloc(&pdev->dev, sizeof(*component), GFP_KERNEL);
if (!component)
return -ENOMEM;
+
+ ret = snd_soc_component_initialize(component,
+ &stm32_adfsdm_soc_platform,
+ &pdev->dev);
+ if (ret < 0)
+ return ret;
#ifdef CONFIG_DEBUG_FS
component->debugfs_prefix = "pcm";
#endif
- ret = snd_soc_add_component(&pdev->dev, component,
- &stm32_adfsdm_soc_platform, NULL, 0);
- if (ret < 0)
+ ret = snd_soc_add_component(component, NULL, 0);
+ if (ret < 0) {
dev_err(&pdev->dev, "%s: Failed to register PCM platform\n",
__func__);
+ return ret;
+ }
+
+ pm_runtime_enable(&pdev->dev);
return ret;
}
-static int stm32_adfsdm_remove(struct platform_device *pdev)
+static void stm32_adfsdm_remove(struct platform_device *pdev)
{
snd_soc_unregister_component(&pdev->dev);
-
- return 0;
+ pm_runtime_disable(&pdev->dev);
}
static struct platform_driver stm32_adfsdm_driver = {
generated by cgit (git 2.34.1) at 2025-12-25 20:36:44 +0000