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ASoC: add Component level pcm_new/pcm_free v2 

In current ALSA SoC, Platform only has pcm_new/pcm_free feature,
but it should be supported on Component level. This patch adds it.

The v1 was added commit 99b04f4c40 ("ASoC: add Component level
pcm_new/pcm_free") but it called all "card" connected component's
pcm_new/free, it was wrong.
This patch calls "rtd" connected component.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Kuninori Morimoto 2017-09-26 01:00:53 +00:00 committed by Mark Brown
parent 3b1b3a7ba5
commit f523acebbb
3 changed files with 69 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
include/sound/soc.h
View File

@ -795,6 +795,10 @@ struct snd_soc_component_driver {
int (*suspend)(struct snd_soc_component *);
int (*resume)(struct snd_soc_component *);
/* pcm creation and destruction */
int (*pcm_new)(struct snd_soc_pcm_runtime *);
void (*pcm_free)(struct snd_pcm *);
/* component wide operations */
int (*set_sysclk)(struct snd_soc_component *component,
int clk_id, int source, unsigned int freq, int dir);
@ -872,6 +876,8 @@ struct snd_soc_component {
void (*remove)(struct snd_soc_component *);
int (*suspend)(struct snd_soc_component *);
int (*resume)(struct snd_soc_component *);
int (*pcm_new)(struct snd_soc_component *, struct snd_soc_pcm_runtime *);
void (*pcm_free)(struct snd_soc_component *, struct snd_pcm *);
int (*set_sysclk)(struct snd_soc_component *component,
int clk_id, int source, unsigned int freq, int dir);

42
sound/soc/soc-core.c
View File

@ -3254,6 +3254,22 @@ static int snd_soc_component_stream_event(struct snd_soc_dapm_context *dapm,
return component->driver->stream_event(component, event);
}
static int snd_soc_component_drv_pcm_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *rtd)
{
if (component->driver->pcm_new)
return component->driver->pcm_new(rtd);
return 0;
}
static void snd_soc_component_drv_pcm_free(struct snd_soc_component *component,
struct snd_pcm *pcm)
{
if (component->driver->pcm_free)
component->driver->pcm_free(pcm);
}
static int snd_soc_component_initialize(struct snd_soc_component *component,
const struct snd_soc_component_driver *driver, struct device *dev)
{
@ -3274,6 +3290,8 @@ static int snd_soc_component_initialize(struct snd_soc_component *component,
component->set_sysclk = component->driver->set_sysclk;
component->set_pll = component->driver->set_pll;
component->set_jack = component->driver->set_jack;
component->pcm_new = snd_soc_component_drv_pcm_new;
component->pcm_free = snd_soc_component_drv_pcm_free;
dapm = snd_soc_component_get_dapm(component);
dapm->dev = dev;
@ -3466,6 +3484,26 @@ static void snd_soc_platform_drv_remove(struct snd_soc_component *component)
platform->driver->remove(platform);
}
static int snd_soc_platform_drv_pcm_new(struct snd_soc_component *component,
struct snd_soc_pcm_runtime *rtd)
{
struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
if (platform->driver->pcm_new)
return platform->driver->pcm_new(rtd);
return 0;
}
static void snd_soc_platform_drv_pcm_free(struct snd_soc_component *component,
struct snd_pcm *pcm)
{
struct snd_soc_platform *platform = snd_soc_component_to_platform(component);
if (platform->driver->pcm_free)
platform->driver->pcm_free(pcm);
}
/**
* snd_soc_add_platform - Add a platform to the ASoC core
* @dev: The parent device for the platform
@ -3489,6 +3527,10 @@ int snd_soc_add_platform(struct device *dev, struct snd_soc_platform *platform,
platform->component.probe = snd_soc_platform_drv_probe;
if (platform_drv->remove)
platform->component.remove = snd_soc_platform_drv_remove;
if (platform_drv->pcm_new)
platform->component.pcm_new = snd_soc_platform_drv_pcm_new;
if (platform_drv->pcm_free)
platform->component.pcm_free = snd_soc_platform_drv_pcm_free;
#ifdef CONFIG_DEBUG_FS
platform->component.debugfs_prefix = "platform";

29
sound/soc/soc-pcm.c
View File

@ -2633,12 +2633,18 @@ static int dpcm_fe_dai_close(struct snd_pcm_substream *fe_substream)
static void soc_pcm_private_free(struct snd_pcm *pcm)
{
struct snd_soc_pcm_runtime *rtd = pcm->private_data;
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_rtdcom_list *rtdcom;
struct snd_soc_component *component;
/* need to sync the delayed work before releasing resources */
flush_delayed_work(&rtd->delayed_work);
if (platform->driver->pcm_free)
platform->driver->pcm_free(pcm);
for_each_rtdcom(rtd, rtdcom) {
/* need to sync the delayed work before releasing resources */
flush_delayed_work(&rtd->delayed_work);
component = rtdcom->component;
if (component->pcm_free)
component->pcm_free(component, pcm);
}
}
/* create a new pcm */
@ -2647,6 +2653,8 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
struct snd_soc_platform *platform = rtd->platform;
struct snd_soc_dai *codec_dai;
struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
struct snd_soc_component *component;
struct snd_soc_rtdcom_list *rtdcom;
struct snd_pcm *pcm;
char new_name[64];
int ret = 0, playback = 0, capture = 0;
@ -2756,10 +2764,15 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
if (capture)
snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &rtd->ops);
if (platform->driver->pcm_new) {
ret = platform->driver->pcm_new(rtd);
for_each_rtdcom(rtd, rtdcom) {
component = rtdcom->component;
if (!component->pcm_new)
continue;
ret = component->pcm_new(component, rtd);
if (ret < 0) {
dev_err(platform->dev,
dev_err(component->dev,
"ASoC: pcm constructor failed: %d\n",
ret);
return ret;