snd_soc_platform_driver has snd_compr_ops, and it will be replaced into snd_soc_component_driver in the future. To prepare it, component driver has it.
After this patch, rtd->platform is no longer mandatory
Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/soc.h | 1 + sound/soc/soc-compress.c | 366 ++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 329 insertions(+), 38 deletions(-)
diff --git a/include/sound/soc.h b/include/sound/soc.h index f26897c..d953912 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -815,6 +815,7 @@ struct snd_soc_component_driver { int (*stream_event)(struct snd_soc_component *, int event);
const struct snd_pcm_ops *ops; + const struct snd_compr_ops *compr_ops;
/* probe ordering - for components with runtime dependencies */ int probe_order; diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c index bfd71b8..a75dc5f 100644 --- a/sound/soc/soc-compress.c +++ b/sound/soc/soc-compress.c @@ -30,8 +30,10 @@ static int soc_compr_open(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -44,7 +46,7 @@ static int soc_compr_open(struct snd_compr_stream *cstream) } }
- if (platform->driver->compr_ops && platform->driver->compr_ops->open) { + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) { ret = platform->driver->compr_ops->open(cstream); if (ret < 0) { pr_err("compress asoc: can't open platform %s\n", @@ -53,6 +55,23 @@ static int soc_compr_open(struct snd_compr_stream *cstream) } }
+ for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->open) + continue; + + __ret = component->driver->compr_ops->open(cstream); + if (__ret < 0) { + pr_err("compress asoc: can't open platform %s\n", + component->name); + ret = __ret; + } + } + if (ret < 0) + goto machine_err; + if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->startup) { ret = rtd->dai_link->compr_ops->startup(cstream); if (ret < 0) { @@ -68,7 +87,15 @@ static int soc_compr_open(struct snd_compr_stream *cstream) return 0;
machine_err: - if (platform->driver->compr_ops && platform->driver->compr_ops->free) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (component->driver->compr_ops && + component->driver->compr_ops->free) + component->driver->compr_ops->free(cstream); + } + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free) platform->driver->compr_ops->free(cstream); plat_err: if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) @@ -83,11 +110,13 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) struct snd_soc_pcm_runtime *fe = cstream->private_data; struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; struct snd_soc_platform *platform = fe->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; struct snd_soc_dpcm *dpcm; struct snd_soc_dapm_widget_list *list; int stream; - int ret = 0; + int ret = 0, __ret;
if (cstream->direction == SND_COMPRESS_PLAYBACK) stream = SNDRV_PCM_STREAM_PLAYBACK; @@ -106,7 +135,7 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) }
- if (platform->driver->compr_ops && platform->driver->compr_ops->open) { + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->open) { ret = platform->driver->compr_ops->open(cstream); if (ret < 0) { pr_err("compress asoc: can't open platform %s\n", @@ -115,6 +144,23 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) } }
+ for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->open) + continue; + + __ret = component->driver->compr_ops->open(cstream); + if (__ret < 0) { + pr_err("compress asoc: can't open platform %s\n", + component->name); + ret = __ret; + } + } + if (ret < 0) + goto machine_err; + if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->startup) { ret = fe->dai_link->compr_ops->startup(cstream); if (ret < 0) { @@ -166,7 +212,15 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream) if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) fe->dai_link->compr_ops->shutdown(cstream); machine_err: - if (platform->driver->compr_ops && platform->driver->compr_ops->free) + for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (component->driver->compr_ops && + component->driver->compr_ops->free) + component->driver->compr_ops->free(cstream); + } + + if (playback && platform->driver->compr_ops && platform->driver->compr_ops->free) platform->driver->compr_ops->free(cstream); plat_err: if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) @@ -209,6 +263,8 @@ static int soc_compr_free(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_soc_dai *codec_dai = rtd->codec_dai; int stream; @@ -234,7 +290,15 @@ static int soc_compr_free(struct snd_compr_stream *cstream) if (rtd->dai_link->compr_ops && rtd->dai_link->compr_ops->shutdown) rtd->dai_link->compr_ops->shutdown(cstream);
- if (platform->driver->compr_ops && platform->driver->compr_ops->free) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (component->driver->compr_ops && + component->driver->compr_ops->free) + component->driver->compr_ops->free(cstream); + } + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free) platform->driver->compr_ops->free(cstream);
if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) @@ -266,6 +330,8 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream) { struct snd_soc_pcm_runtime *fe = cstream->private_data; struct snd_soc_platform *platform = fe->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; struct snd_soc_dpcm *dpcm; int stream, ret; @@ -303,7 +369,15 @@ static int soc_compr_free_fe(struct snd_compr_stream *cstream) if (fe->dai_link->compr_ops && fe->dai_link->compr_ops->shutdown) fe->dai_link->compr_ops->shutdown(cstream);
- if (platform->driver->compr_ops && platform->driver->compr_ops->free) + for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (component->driver->compr_ops && + component->driver->compr_ops->free) + component->driver->compr_ops->free(cstream); + } + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->free) platform->driver->compr_ops->free(cstream);
if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown) @@ -318,13 +392,29 @@ static int soc_compr_trigger(struct snd_compr_stream *cstream, int cmd)
struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
- if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->trigger) + continue; + + __ret = component->driver->compr_ops->trigger(cstream, cmd); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto out; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->trigger) { ret = platform->driver->compr_ops->trigger(cstream, cmd); if (ret < 0) goto out; @@ -352,16 +442,32 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) { struct snd_soc_pcm_runtime *fe = cstream->private_data; struct snd_soc_platform *platform = fe->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; - int ret = 0, stream; + int ret = 0, __ret, stream;
if (cmd == SND_COMPR_TRIGGER_PARTIAL_DRAIN || cmd == SND_COMPR_TRIGGER_DRAIN) {
- if (platform->driver->compr_ops && + if (platform && + platform->driver->compr_ops && platform->driver->compr_ops->trigger) return platform->driver->compr_ops->trigger(cstream, cmd); + + for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->trigger) + continue; + + __ret = component->driver->compr_ops->trigger(cstream, cmd); + if (__ret < 0) + ret = __ret; + } + return ret; }
if (cstream->direction == SND_COMPRESS_PLAYBACK) @@ -378,7 +484,21 @@ static int soc_compr_trigger_fe(struct snd_compr_stream *cstream, int cmd) goto out; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->trigger) { + for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->trigger) + continue; + + __ret = component->driver->compr_ops->trigger(cstream, cmd); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto out; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->trigger) { ret = platform->driver->compr_ops->trigger(cstream, cmd); if (ret < 0) goto out; @@ -414,8 +534,10 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -431,7 +553,21 @@ static int soc_compr_set_params(struct snd_compr_stream *cstream, goto err; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->set_params) + continue; + + __ret = component->driver->compr_ops->set_params(cstream, params); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_params) { ret = platform->driver->compr_ops->set_params(cstream, params); if (ret < 0) goto err; @@ -469,8 +605,10 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, struct snd_soc_pcm_runtime *fe = cstream->private_data; struct snd_pcm_substream *fe_substream = fe->pcm->streams[0].substream; struct snd_soc_platform *platform = fe->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = fe->cpu_dai; - int ret = 0, stream; + int ret = 0, __ret, stream;
if (cstream->direction == SND_COMPRESS_PLAYBACK) stream = SNDRV_PCM_STREAM_PLAYBACK; @@ -485,7 +623,21 @@ static int soc_compr_set_params_fe(struct snd_compr_stream *cstream, goto out; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->set_params) { + for_each_rtdcom(fe, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->set_params) + continue; + + __ret = component->driver->compr_ops->set_params(cstream, params); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto out; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_params) { ret = platform->driver->compr_ops->set_params(cstream, params); if (ret < 0) goto out; @@ -529,8 +681,10 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -540,7 +694,21 @@ static int soc_compr_get_params(struct snd_compr_stream *cstream, goto err; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->get_params) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->get_params) + continue; + + __ret = component->driver->compr_ops->get_params(cstream, params); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_params) ret = platform->driver->compr_ops->get_params(cstream, params);
err: @@ -553,13 +721,29 @@ static int soc_compr_get_caps(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; - int ret = 0; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
- if (platform->driver->compr_ops && platform->driver->compr_ops->get_caps) - ret = platform->driver->compr_ops->get_caps(cstream, caps); + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component;
+ if (!component->driver->compr_ops || + !component->driver->compr_ops->get_caps) + continue; + + __ret = component->driver->compr_ops->get_caps(cstream, caps); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_caps) + ret = platform->driver->compr_ops->get_caps(cstream, caps); +err: mutex_unlock(&rtd->pcm_mutex); return ret; } @@ -569,13 +753,29 @@ static int soc_compr_get_codec_caps(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; - int ret = 0; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
- if (platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) - ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->get_codec_caps) + continue;
+ __ret = component->driver->compr_ops->get_codec_caps(cstream, codec); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_codec_caps) + ret = platform->driver->compr_ops->get_codec_caps(cstream, codec); +err: mutex_unlock(&rtd->pcm_mutex); return ret; } @@ -584,8 +784,10 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
@@ -595,7 +797,21 @@ static int soc_compr_ack(struct snd_compr_stream *cstream, size_t bytes) goto err; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->ack) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->ack) + continue; + + __ret = component->driver->compr_ops->ack(cstream, bytes); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->ack) ret = platform->driver->compr_ops->ack(cstream, bytes);
err: @@ -608,7 +824,9 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; - int ret = 0; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; + int ret = 0, __ret; struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass); @@ -616,9 +834,23 @@ static int soc_compr_pointer(struct snd_compr_stream *cstream, if (cpu_dai->driver->cops && cpu_dai->driver->cops->pointer) cpu_dai->driver->cops->pointer(cstream, tstamp, cpu_dai);
- if (platform->driver->compr_ops && platform->driver->compr_ops->pointer) - ret = platform->driver->compr_ops->pointer(cstream, tstamp); + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component;
+ if (!component->driver->compr_ops || + !component->driver->compr_ops->pointer) + continue; + + __ret = component->driver->compr_ops->pointer(cstream, tstamp); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->pointer) + ret = platform->driver->compr_ops->pointer(cstream, tstamp); +err: mutex_unlock(&rtd->pcm_mutex); return ret; } @@ -628,13 +860,29 @@ static int soc_compr_copy(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; - int ret = 0; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; + int ret = 0, __ret;
mutex_lock_nested(&rtd->pcm_mutex, rtd->pcm_subclass);
- if (platform->driver->compr_ops && platform->driver->compr_ops->copy) - ret = platform->driver->compr_ops->copy(cstream, buf, count); + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component;
+ if (!component->driver->compr_ops || + !component->driver->compr_ops->copy) + continue; + + __ret = component->driver->compr_ops->copy(cstream, buf, count); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + goto err; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->copy) + ret = platform->driver->compr_ops->copy(cstream, buf, count); +err: mutex_unlock(&rtd->pcm_mutex); return ret; } @@ -644,8 +892,10 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
if (cpu_dai->driver->cops && cpu_dai->driver->cops->set_metadata) { ret = cpu_dai->driver->cops->set_metadata(cstream, metadata, cpu_dai); @@ -653,7 +903,21 @@ static int soc_compr_set_metadata(struct snd_compr_stream *cstream, return ret; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->set_metadata) + continue; + + __ret = component->driver->compr_ops->set_metadata(cstream, metadata); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + return ret; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->set_metadata) ret = platform->driver->compr_ops->set_metadata(cstream, metadata);
return ret; @@ -664,8 +928,10 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream, { struct snd_soc_pcm_runtime *rtd = cstream->private_data; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - int ret = 0; + int ret = 0, __ret;
if (cpu_dai->driver->cops && cpu_dai->driver->cops->get_metadata) { ret = cpu_dai->driver->cops->get_metadata(cstream, metadata, cpu_dai); @@ -673,7 +939,21 @@ static int soc_compr_get_metadata(struct snd_compr_stream *cstream, return ret; }
- if (platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (!component->driver->compr_ops || + !component->driver->compr_ops->get_metadata) + continue; + + __ret = component->driver->compr_ops->get_metadata(cstream, metadata); + if (__ret < 0) + ret = __ret; + } + if (ret < 0) + return ret; + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->get_metadata) ret = platform->driver->compr_ops->get_metadata(cstream, metadata);
return ret; @@ -721,6 +1001,8 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_platform *platform = rtd->platform; + struct snd_soc_component *component; + struct snd_soc_rtdcom_list *rtdcom; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; struct snd_compr *compr; @@ -799,7 +1081,15 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num) memcpy(compr->ops, &soc_compr_ops, sizeof(soc_compr_ops));
/* Add copy callback for not memory mapped DSPs */ - if (platform->driver->compr_ops && platform->driver->compr_ops->copy) + for_each_rtdcom(rtd, rtdcom) { + component = rtdcom->component; + + if (component->driver->compr_ops && + component->driver->compr_ops->copy) + compr->ops->copy = soc_compr_copy; + } + + if (platform && platform->driver->compr_ops && platform->driver->compr_ops->copy) compr->ops->copy = soc_compr_copy;
mutex_init(&compr->lock);