Allow platform driver widgets to perform any IO required for DAPM.
Signed-off-by: Liam Girdwood lrg@ti.com --- include/sound/soc-dapm.h | 2 ++ include/sound/soc.h | 2 ++ sound/soc/soc-core.c | 4 ++++ sound/soc/soc-dapm.c | 13 +++++++++++-- 4 files changed, 19 insertions(+), 2 deletions(-)
diff --git a/include/sound/soc-dapm.h b/include/sound/soc-dapm.h index 602024d..e09505c 100644 --- a/include/sound/soc-dapm.h +++ b/include/sound/soc-dapm.h @@ -447,6 +447,7 @@ struct snd_soc_dapm_widget { char *name; /* widget name */ char *sname; /* stream name */ struct snd_soc_codec *codec; + struct snd_soc_platform *platform; struct list_head list; struct snd_soc_dapm_context *dapm;
@@ -510,6 +511,7 @@ struct snd_soc_dapm_context {
struct device *dev; /* from parent - for debug */ struct snd_soc_codec *codec; /* parent codec */ + struct snd_soc_platform *platform; /* parent platform */ struct snd_soc_card *card; /* parent card */
/* used during DAPM updates */ diff --git a/include/sound/soc.h b/include/sound/soc.h index c421501..6ce8dc3 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -682,6 +682,8 @@ struct snd_soc_platform { struct snd_soc_card *card; struct list_head list; struct list_head card_list; + + struct snd_soc_dapm_context dapm; };
struct snd_soc_dai_link { diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index a69b87a..36e71e9 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -993,6 +993,7 @@ static int soc_probe_platform(struct snd_soc_card *card, const struct snd_soc_platform_driver *driver = platform->driver;
platform->card = card; + platform->dapm.card = card;
if (!try_module_get(platform->dev->driver->owner)) return -ENODEV; @@ -1010,6 +1011,7 @@ static int soc_probe_platform(struct snd_soc_card *card, /* mark platform as probed and add to card platform list */ platform->probed = 1; list_add(&platform->card_list, &card->platform_dev_list); + list_add(&platform->dapm.list, &card->dapm_list);
return 0;
@@ -3124,6 +3126,8 @@ int snd_soc_register_platform(struct device *dev,
platform->dev = dev; platform->driver = platform_drv; + platform->dapm.dev = dev; + platform->dapm.platform = platform;
mutex_lock(&client_mutex); list_add(&platform->list, &platform_list); diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c index 605c225..0a78482 100644 --- a/sound/soc/soc-dapm.c +++ b/sound/soc/soc-dapm.c @@ -128,14 +128,22 @@ static int soc_widget_read(struct snd_soc_dapm_widget *w, int reg) { if (w->codec) return snd_soc_read(w->codec, reg); - return 0; + else if (w->platform) + return snd_soc_platform_read(w->platform, reg); + + dev_err(w->dapm->dev, "no valid widget read method\n"); + return -1; }
static int soc_widget_write(struct snd_soc_dapm_widget *w, int reg, int val) { if (w->codec) return snd_soc_write(w->codec, reg, val); - return 0; + else if (w->platform) + return snd_soc_platform_write(w->platform, reg, val); + + dev_err(w->dapm->dev, "no valid widget write method\n"); + return -1; }
static int soc_widget_update_bits(struct snd_soc_dapm_widget *w, @@ -2489,6 +2497,7 @@ int snd_soc_dapm_new_control(struct snd_soc_dapm_context *dapm, dapm->n_widgets++; w->dapm = dapm; w->codec = dapm->codec; + w->platform = dapm->platform; INIT_LIST_HEAD(&w->sources); INIT_LIST_HEAD(&w->sinks); INIT_LIST_HEAD(&w->list);