ASoC: compress: make BE and FE order inline with dpcm

For some reason order of startup/hw_params/prepare are reversed
in dynamic compress usecase when compared to dpcm usecase. This is
a issue with platforms like QCOM where it expects the BE to be
initialized before FE.

Interestingly the compress trigger callback order is inline with dpcm.

Am not 100% sure why the compress audio case has been reversed.
This patch is making the order inline with dpcm.

If the reverse ordering is just co-incendental then this change
makes sense and will avoid inventing some new mechanism to cope
with ordering.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index b9e1673..409d082 100644 (file)
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -140,6 +140,30 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
                stream = SNDRV_PCM_STREAM_CAPTURE;
 
        mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
+       fe->dpcm[stream].runtime = fe_substream->runtime;
+
+       ret = dpcm_path_get(fe, stream, &list);
+       if (ret < 0)
+               goto be_err;
+       else if (ret == 0)
+               dev_dbg(fe->dev, "Compress ASoC: %s no valid %s route\n",
+                       fe->dai_link->name, stream ? "capture" : "playback");
+       /* calculate valid and active FE <-> BE dpcms */
+       dpcm_process_paths(fe, stream, &list, 1);
+       fe->dpcm[stream].runtime = fe_substream->runtime;
+
+       fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
+
+       ret = dpcm_be_dai_startup(fe, stream);
+       if (ret < 0) {
+               /* clean up all links */
+               list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
+                       dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
+
+               dpcm_be_disconnect(fe, stream);
+               fe->dpcm[stream].runtime = NULL;
+               goto out;
+       }
 
        if (cpu_dai->driver->cops && cpu_dai->driver->cops->startup) {
                ret = cpu_dai->driver->cops->startup(cstream, cpu_dai);
@@ -153,7 +177,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 
        ret = soc_compr_components_open(cstream, &component);
        if (ret < 0)
-               goto machine_err;
+               goto open_err;
 
        if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) {
                ret = fe->dai_link->compr_ops->startup(cstream);
@@ -164,31 +188,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
                }
        }
 
-       fe->dpcm[stream].runtime = fe_substream->runtime;
-
-       ret = dpcm_path_get(fe, stream, &list);
-       if (ret < 0)
-               goto fe_err;
-       else if (ret == 0)
-               dev_dbg(fe->dev, "Compress ASoC: %s no valid %s route\n",
-                       fe->dai_link->name, stream ? "capture" : "playback");
-
-       /* calculate valid and active FE <-> BE dpcms */
-       dpcm_process_paths(fe, stream, &list, 1);
-
-       fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
-
-       ret = dpcm_be_dai_startup(fe, stream);
-       if (ret < 0) {
-               /* clean up all links */
-               list_for_each_entry(dpcm, &fe->dpcm[stream].be_clients, list_be)
-                       dpcm->state = SND_SOC_DPCM_LINK_STATE_FREE;
-
-               dpcm_be_disconnect(fe, stream);
-               fe->dpcm[stream].runtime = NULL;
-               goto path_err;
-       }
-
        dpcm_clear_pending_state(fe, stream);
        dpcm_path_put(&list);
 
@@ -201,17 +200,14 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 
        return 0;
 
-path_err:
-       dpcm_path_put(&list);
-fe_err:
-       if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown)
-               fe->dai_link->compr_ops->shutdown(cstream);
 machine_err:
        soc_compr_components_free(cstream, component);
-
+open_err:
        if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
                cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 out:
+       dpcm_path_put(&list);
+be_err:
        fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_NO;
        mutex_unlock(&fe->card->mutex);
        return ret;
@@ -551,6 +547,24 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
 
        mutex_lock_nested(&fe->card->mutex, SND_SOC_CARD_CLASS_RUNTIME);
 
+       /*
+        * Create an empty hw_params for the BE as the machine driver must
+        * fix this up to match DSP decoder and ASRC configuration.
+        * I.e. machine driver fixup for compressed BE is mandatory.
+        */
+       memset(&fe->dpcm[fe_substream->stream].hw_params, 0,
+               sizeof(struct snd_pcm_hw_params));
+
+       fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
+
+       ret = dpcm_be_dai_hw_params(fe, stream);
+       if (ret < 0)
+               goto out;
+
+       ret = dpcm_be_dai_prepare(fe, stream);
+       if (ret < 0)
+               goto out;
+
        if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_params) {
                ret = cpu_dai->driver->cops->set_params(cstream, params, cpu_dai);
                if (ret < 0)
@@ -577,24 +591,6 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream,
                        goto out;
        }
 
-       /*
-        * Create an empty hw_params for the BE as the machine driver must
-        * fix this up to match DSP decoder and ASRC configuration.
-        * I.e. machine driver fixup for compressed BE is mandatory.
-        */
-       memset(&fe->dpcm[fe_substream->stream].hw_params, 0,
-               sizeof(struct snd_pcm_hw_params));
-
-       fe->dpcm[stream].runtime_update = SND_SOC_DPCM_UPDATE_FE;
-
-       ret = dpcm_be_dai_hw_params(fe, stream);
-       if (ret < 0)
-               goto out;
-
-       ret = dpcm_be_dai_prepare(fe, stream);
-       if (ret < 0)
-               goto out;
-
        dpcm_dapm_stream_event(fe, stream, SND_SOC_DAPM_STREAM_START);
        fe->dpcm[stream].state = SND_SOC_DPCM_STATE_PREPARE;