Subject: [PATCH 078/104] ASoC: dsp - add core support for bespoke trigger()

This allows the DSP core to call a beskope trigger() call
on DAIs and platforms that require it.

TODO: move into DSP patch series.

Signed-off-by: Liam Girdwood <lrg@ti.com>

3 files changed, 32 insertions, 0 deletions

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index f298f67b954..bda171e8d6d 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -172,6 +172,8 @@ struct snd_soc_dai_ops {
                 struct snd_soc_dai *);
         int (*trigger)(struct snd_pcm_substream *, int,
                 struct snd_soc_dai *);
+        int (*bespoke_trigger)(struct snd_pcm_substream *, int,
+                struct snd_soc_dai *);
         /*
          * For hardware based FIFO caused delay reporting.
          * Optional.
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 5f3a7e7dba5..f4aadfc7509 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -689,6 +689,8 @@ struct snd_soc_platform_driver {
         /* platform IO - used for platform DAPM */
         unsigned int (*read)(struct snd_soc_platform *, unsigned int);
         int (*write)(struct snd_soc_platform *, unsigned int, unsigned int);
+
+        int (*bespoke_trigger)(struct snd_pcm_substream *, int);
 };
 
 struct snd_soc_platform {
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index b42b607bf47..dcb2fbc159e 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -579,6 +579,34 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
         return 0;
 }
 
+int soc_pcm_bespoke_trigger(struct snd_pcm_substream *substream, int cmd)
+{
+        struct snd_soc_pcm_runtime *rtd = substream->private_data;
+        struct snd_soc_platform *platform = rtd->platform;
+        struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+        struct snd_soc_dai *codec_dai = rtd->codec_dai;
+        int ret;
+
+        if (codec_dai->driver->ops->bespoke_trigger) {
+                ret = codec_dai->driver->ops->bespoke_trigger(substream, cmd, codec_dai);
+                if (ret < 0)
+                        return ret;
+        }
+
+        if (platform->driver->bespoke_trigger) {
+                ret = platform->driver->bespoke_trigger(substream, cmd);
+                if (ret < 0)
+                        return ret;
+        }
+
+        if (cpu_dai->driver->ops->bespoke_trigger) {
+                ret = cpu_dai->driver->ops->bespoke_trigger(substream, cmd, cpu_dai);
+                if (ret < 0)
+                        return ret;
+        }
+        return 0;
+}
+
 /*
  * soc level wrapper for pointer callback
  * If cpu_dai, codec_dai, platform driver has the delay callback, than