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ASoC: Add initial support for multiple CPU DAIs

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ASoC core supports multiple codec DAIs but supports only a CPU DAI.
To support multiple cpu DAIs, add cpu_dai and num_cpu_dai in
snd_soc_dai_link and snd_soc_pcm_runtime structures similar to
support for codec_dai. This is intended as a preparatory patch to
eventually support the unification of the Codec and CPU DAI.

Inline with multiple codec DAI approach, add support to allocate,
init, bind and probe multiple cpu_dai on init if driver specifies
that. Also add support to loop over multiple cpu_dai during
suspend and resume.

This is intended as a preparatory patch to eventually unify the CPU
and Codec DAI into DAI components.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Shreyas NC <shreyas.nc@intel.com>
Link: https://lore.kernel.org/r/20200225133917.21314-2-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Shreyas NC
2020-02-25 21:39:12 +08:00
committed by Mark Brown
parent f5e056e1e4
commit 76afa64374
2 changed files with 106 additions and 77 deletions
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15
include/sound/soc.h
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@@ -855,6 +855,11 @@ struct snd_soc_dai_link {
((platform) = &link->platforms[i]); \
(i)++)
#define for_each_link_cpus(link, i, cpu) \
for ((i) = 0; \
((i) < link->num_cpus) && ((cpu) = &link->cpus[i]); \
(i)++)
/*
* Sample 1 : Single CPU/Codec/Platform
*
@@ -1132,6 +1137,9 @@ struct snd_soc_pcm_runtime {
struct snd_soc_dai **codec_dais;
unsigned int num_codecs;
struct snd_soc_dai **cpu_dais;
unsigned int num_cpus;
struct delayed_work delayed_work;
void (*close_delayed_work_func)(struct snd_soc_pcm_runtime *rtd);
#ifdef CONFIG_DEBUG_FS
@@ -1159,6 +1167,13 @@ struct snd_soc_pcm_runtime {
#define for_each_rtd_codec_dai_rollback(rtd, i, dai) \
for (; (--(i) >= 0) && ((dai) = rtd->codec_dais[i]);)
#define for_each_rtd_cpu_dai(rtd, i, dai)\
for ((i) = 0; \
((i) < rtd->num_cpus) && ((dai) = rtd->cpu_dais[i]); \
(i)++)
#define for_each_rtd_cpu_dai_rollback(rtd, i, dai) \
for (; (--(i) >= 0) && ((dai) = rtd->cpu_dais[i]);)
void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd);
/* mixer control */