From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> Current simple-card / audio-graph creates 1xCPU + 1xCodec + 1xPlatform for all dai_link, but some of them is not needed. For example Platform is not needed for DPCM BE case. Moreover, we can share snd-soc-dummy DAI for CPU-dummy / dummy-Codec in DPCM. This patch adds dummy DAI and share it when DPCM case, I beliave it can contribute to reduce memory. By this patch, CPU-dummy / dummy-CPU are set at asoc_simple_init_priv(), thus, its settings are no longer needed at DPCM detecting timing on simple-card / audio-graph. Moreover, we can remove triky Platform settings code for DPCM BE, because un-needed Platform is not created. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> --- include/sound/simple_card_utils.h | 1 + sound/soc/generic/audio-graph-card.c | 12 +---------- sound/soc/generic/simple-card-utils.c | 30 ++++++++++++++++++++------- sound/soc/generic/simple-card.c | 12 +---------- 4 files changed, 26 insertions(+), 29 deletions(-) diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 475f8cb14492..6635283a8160 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -62,6 +62,7 @@ struct asoc_simple_priv { struct snd_soc_dai_link *dai_link; struct asoc_simple_dai *dais; struct snd_soc_dai_link_component *dlcs; + struct snd_soc_dai_link_component dummy; struct snd_soc_codec_conf *codec_conf; struct gpio_desc *pa_gpio; const struct snd_soc_ops *ops; diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index a3ca9a99fccd..49d37964e40a 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -240,9 +240,6 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv, int is_single_links = 0; /* Codec is dummy */ - codecs->of_node = NULL; - codecs->dai_name = "snd-soc-dummy-dai"; - codecs->name = "snd-soc-dummy"; /* FE settings */ dai_link->dynamic = 1; @@ -281,13 +278,11 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv, /* card->num_links includes Codec */ asoc_simple_canonicalize_cpu(dai_link, is_single_links); + asoc_simple_canonicalize_platform(dai_link); } else { struct snd_soc_codec_conf *cconf; /* CPU is dummy */ - cpus->of_node = NULL; - cpus->dai_name = "snd-soc-dummy-dai"; - cpus->name = "snd-soc-dummy"; /* BE settings */ dai_link->no_pcm = 1; @@ -328,8 +323,6 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv, graph_parse_convert(dev, ep, &dai_props->adata); graph_parse_mclk_fs(top, ep, dai_props); - asoc_simple_canonicalize_platform(dai_link); - ret = asoc_simple_parse_tdm(ep, dai); if (ret) goto out_put_node; @@ -659,15 +652,12 @@ static int graph_count_dpcm(struct asoc_simple_priv *priv, if (li->cpu) { li->num[li->link].cpus = 1; - li->num[li->link].codecs = 1; li->num[li->link].platforms = 1; li->link++; /* 1xCPU-dummy */ li->dais++; /* 1xCPU */ } else { - li->num[li->link].cpus = 1; li->num[li->link].codecs = 1; - li->num[li->link].platforms = 1; li->link++; /* 1xdummy-Codec */ li->conf++; /* 1xdummy-Codec */ diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 1606b9bc6b71..64b1ff5bafda 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -404,13 +404,6 @@ void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link) /* Assumes platform == cpu */ if (!dai_link->platforms->of_node) dai_link->platforms->of_node = dai_link->cpus->of_node; - - /* - * DPCM BE can be no platform. - * Alloced memory will be waste, but not leak. - */ - if (!dai_link->platforms->of_node) - dai_link->num_platforms = 0; } EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform); @@ -633,6 +626,11 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, return -ENOMEM; } + /* dummy CPU/Codec */ + priv->dummy.of_node = NULL; + priv->dummy.dai_name = "snd-soc-dummy-dai"; + priv->dummy.name = "snd-soc-dummy"; + priv->dai_props = dai_props; priv->dai_link = dai_link; priv->dais = dais; @@ -653,6 +651,12 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dai_link[i].num_cpus = li->num[i].cpus; dlcs += li->num[i].cpus; + } else { + /* DPCM Be's CPU = dummy */ + dai_props[i].cpus = + dai_link[i].cpus = &priv->dummy; + dai_props[i].num.cpus = + dai_link[i].num_cpus = 1; } if (li->num[i].codecs) { @@ -663,6 +667,12 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dai_link[i].num_codecs = li->num[i].codecs; dlcs += li->num[i].codecs; + } else { + /* DPCM Fe's Codec = dummy */ + dai_props[i].codecs = + dai_link[i].codecs = &priv->dummy; + dai_props[i].num.codecs = + dai_link[i].num_codecs = 1; } if (li->num[i].platforms) { @@ -673,6 +683,12 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv, dai_link[i].num_platforms = li->num[i].platforms; dlcs += li->num[i].platforms; + } else { + /* Doesn't have Platform */ + dai_props[i].platforms = + dai_link[i].platforms = NULL; + dai_props[i].num.platforms = + dai_link[i].num_platforms = 0; } } diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index f60e809d723b..542180a19a06 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -141,9 +141,6 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv, int is_single_links = 0; /* Codec is dummy */ - codecs->of_node = NULL; - codecs->dai_name = "snd-soc-dummy-dai"; - codecs->name = "snd-soc-dummy"; /* FE settings */ dai_link->dynamic = 1; @@ -167,13 +164,11 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv, goto out_put_node; asoc_simple_canonicalize_cpu(dai_link, is_single_links); + asoc_simple_canonicalize_platform(dai_link); } else { struct snd_soc_codec_conf *cconf; /* CPU is dummy */ - cpus->of_node = NULL; - cpus->dai_name = "snd-soc-dummy-dai"; - cpus->name = "snd-soc-dummy"; /* BE settings */ dai_link->no_pcm = 1; @@ -211,8 +206,6 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv, simple_parse_convert(dev, np, &dai_props->adata); simple_parse_mclk_fs(top, np, codec, dai_props, prefix); - asoc_simple_canonicalize_platform(dai_link); - ret = asoc_simple_parse_tdm(np, dai); if (ret) goto out_put_node; @@ -530,15 +523,12 @@ static int simple_count_dpcm(struct asoc_simple_priv *priv, if (li->cpu) { li->num[li->link].cpus = 1; - li->num[li->link].codecs = 1; li->num[li->link].platforms = 1; li->link++; /* CPU-dummy */ li->dais++; } else { - li->num[li->link].cpus = 1; li->num[li->link].codecs = 1; - li->num[li->link].platforms = 1; li->link++; /* dummy-Codec */ li->dais++; -- 2.25.1