From 7465582e0b18859d3681192ec2ccf22a81370040 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 19 Dec 2023 05:09:53 +0000 Subject: [PATCH 1/5] ASoC: fsl: fsl-asoc-card: don't need DUMMY Platform We can use SND_SOC_DAILINK_REG() with 2 parameter. DUMMY Platform is not needed. Signed-off-by: Kuninori Morimoto Link: https://msgid.link/r/877cla93ry.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/fsl/fsl-asoc-card.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/fsl/fsl-asoc-card.c b/sound/soc/fsl/fsl-asoc-card.c index 7518ab9d768e..bc07f26ba303 100644 --- a/sound/soc/fsl/fsl-asoc-card.c +++ b/sound/soc/fsl/fsl-asoc-card.c @@ -305,8 +305,7 @@ SND_SOC_DAILINK_DEFS(hifi_fe, SND_SOC_DAILINK_DEFS(hifi_be, DAILINK_COMP_ARRAY(COMP_EMPTY()), - DAILINK_COMP_ARRAY(COMP_EMPTY()), - DAILINK_COMP_ARRAY(COMP_DUMMY())); + DAILINK_COMP_ARRAY(COMP_EMPTY())); static const struct snd_soc_dai_link fsl_asoc_card_dai[] = { /* Default ASoC DAI Link*/ From 56558d6ab8c09c416bdb6d72b7e02894539a882a Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 19 Dec 2023 05:10:02 +0000 Subject: [PATCH 2/5] ASoC: samsung: odroid: don't need DUMMY Platform We can use SND_SOC_DAILINK_REG() with 2 parameter. DUMMY Platform is not needed. Signed-off-by: Kuninori Morimoto Link: https://msgid.link/r/875y0u93rq.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/samsung/odroid.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/samsung/odroid.c b/sound/soc/samsung/odroid.c index e95f3d3f0401..110ae14dd7ea 100644 --- a/sound/soc/samsung/odroid.c +++ b/sound/soc/samsung/odroid.c @@ -157,8 +157,7 @@ SND_SOC_DAILINK_DEFS(primary, SND_SOC_DAILINK_DEFS(mixer, DAILINK_COMP_ARRAY(COMP_DUMMY()), - DAILINK_COMP_ARRAY(COMP_EMPTY()), - DAILINK_COMP_ARRAY(COMP_DUMMY())); + DAILINK_COMP_ARRAY(COMP_EMPTY())); SND_SOC_DAILINK_DEFS(secondary, DAILINK_COMP_ARRAY(COMP_EMPTY()), From c2dfe29f30d8850af324449f416491b171af19aa Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 19 Dec 2023 05:10:09 +0000 Subject: [PATCH 3/5] ASoC: intel: hdaudio.c: use snd_soc_dummy_dlc We already have snd_soc_dummy_dlc. Let's use it. Signed-off-by: Kuninori Morimoto Link: https://msgid.link/r/874jge93ri.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/intel/avs/boards/hdaudio.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/sound/soc/intel/avs/boards/hdaudio.c b/sound/soc/intel/avs/boards/hdaudio.c index 844a918f9a81..79b4aca41333 100644 --- a/sound/soc/intel/avs/boards/hdaudio.c +++ b/sound/soc/intel/avs/boards/hdaudio.c @@ -155,8 +155,6 @@ static int avs_probing_link_init(struct snd_soc_pcm_runtime *rtm) return 0; } -SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); - static struct snd_soc_dai_link probing_link = { .name = "probing-LINK", .id = -1, @@ -164,8 +162,8 @@ static struct snd_soc_dai_link probing_link = { .no_pcm = 1, .dpcm_playback = 1, .dpcm_capture = 1, - .cpus = dummy, - .num_cpus = ARRAY_SIZE(dummy), + .cpus = &snd_soc_dummy_dlc, + .num_cpus = 1, .init = avs_probing_link_init, }; From e8776ff9ce9f5a8a9d8294101fd2924cebdd2da1 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 19 Dec 2023 05:10:19 +0000 Subject: [PATCH 4/5] ASoC: sof: use snd_soc_dummy_dlc We already have snd_soc_dummy_dlc. Let's use it. Signed-off-by: Kuninori Morimoto Link: https://msgid.link/r/8734vy93r8.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- sound/soc/sof/sof-client-probes.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/sound/soc/sof/sof-client-probes.c b/sound/soc/sof/sof-client-probes.c index 7cc9e8f18de7..30f771ac7bbf 100644 --- a/sound/soc/sof/sof-client-probes.c +++ b/sound/soc/sof/sof-client-probes.c @@ -381,8 +381,6 @@ static const struct snd_soc_component_driver sof_probes_component = { .legacy_dai_naming = 1, }; -SND_SOC_DAILINK_DEF(dummy, DAILINK_COMP_ARRAY(COMP_DUMMY())); - static int sof_probes_client_probe(struct auxiliary_device *auxdev, const struct auxiliary_device_id *id) { @@ -475,7 +473,7 @@ static int sof_probes_client_probe(struct auxiliary_device *auxdev, links[0].cpus = &cpus[0]; links[0].num_cpus = 1; links[0].cpus->dai_name = "Probe Extraction CPU DAI"; - links[0].codecs = dummy; + links[0].codecs = &snd_soc_dummy_dlc; links[0].num_codecs = 1; links[0].platforms = platform_component; links[0].num_platforms = ARRAY_SIZE(platform_component); From 13f58267cda3d6946c8f4de368ad5d4a003baa61 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 19 Dec 2023 05:10:33 +0000 Subject: [PATCH 5/5] ASoC: soc.h: don't create dummy Component via COMP_DUMMY() Many ASoC drivers define CPU/Codec/Platform dai_link by below macro. SND_SOC_DAILINK_DEFS(link, (A) DAILINK_COMP_ARRAY(COMP_CPU("cpu_dai")), (B) DAILINK_COMP_ARRAY(COMP_CODEC("codec", "dai1"), (B) COMP_CODEC("codec", "dai2")), (C) DAILINK_COMP_ARRAY(COMP_EMPTY())); In this case, this macro will be converted to like below [o] = static struct snd_soc_dai_link_component (A) [o] link_cpus[] = {{ .dai_name = "cpu_dai" }}; (B) [o] link_codecs[] = {{ .dai_name = "dai1", .name = "codec" }, { .dai_name = "dai2", .name = "codec" }} (C) [o] link_platforms[] = {{ }}; CPU and Codec info will be filled by COMP_CPU() / COMP_CODEC (= A,B), and Platform will have empty data by COMP_EMPTY() (= C) in this case. Platform empty info will be filled when driver probe() (most of case, CPU info will be copied to use soc-generic-dmaengine-pcm). For example in case of DPCM FE/BE, it will be like below. Codec will be dummy Component / DAI in this case (X). SND_SOC_DAILINK_DEFS(link, DAILINK_COMP_ARRAY(COMP_CPU(...)), (X) DAILINK_COMP_ARRAY(COMP_DUMMY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); (X) part will converted like below [o] link_codecs[] = {{ .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", }} Even though we already have common asoc_dummy_dlc for dummy Component / DAI, this macro will re-create new dummy dlc. Some drivers defines many dai_link info via SND_SOC_DAILINK_DEFS(), this means many dummy dlc also will be re-created. This is waste of memory. If we can use existing common asoc_dummy_dlc at (X), we can avoid to re-creating dummy dlc, then, we can save the memory. At that time, we want to keep existing code as much as possible, because too many drivers are using this macro. But because of its original style, using common asoc_dummy_dlc from it is very difficult or impossible. So let's change the mind. The macro is used like below SND_SOC_DAILINK_DEFS(link, DAILINK_COMP_ARRAY(COMP_CPU(...)), (x) DAILINK_COMP_ARRAY(COMP_DUMMY()), DAILINK_COMP_ARRAY(COMP_EMPTY())); static struct snd_soc_dai_link dai_links[] = { { .name = ..., .stream_name = ..., (y) SND_SOC_DAILINK_REG(link), }, (y) part will be like below static struct snd_soc_dai_link dai_links[] = { { .name = ..., .stream_name = ..., ^ ... | .codecs = link_codecs, (y) .num_codecs = ARRAY_SIZE(link_codecs), v ... } This patch try to use trick on COMP_DUMMY() - #define COMP_DUMMY() { .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", } + #define COMP_DUMMY() By this tric, (x) part will be like below. before [o] link_codecs[] = {{ .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", }} after [o] link_codecs[] = { }; This is same as below [o] link_codecs[0]; This means it has pointer (link_codecs), but the array size is 0. (y) part will be like below. static struct snd_soc_dai_link dai_links[] = { { ... .codecs = link_codecs, .num_codecs = 0, ... }, This is very special settings that normal use usually not do, but new macro do. We can find this special settings on soc-core.c and fill it as "dummy DAI" (= asoc_dummy_dlc). By this tric, we can avoid to re-create dummy dlc and save the memory. This patch add tric at COMP_DUMMY() and add snd_soc_fill_dummy_dai() to fill dummy DAI. Signed-off-by: Kuninori Morimoto Link: https://msgid.link/r/871qbi93qu.wl-kuninori.morimoto.gx@renesas.com Signed-off-by: Mark Brown --- include/sound/soc.h | 2 +- sound/soc/soc-core.c | 24 ++++++++++++++++++++++++ 2 files changed, 25 insertions(+), 1 deletion(-) diff --git a/include/sound/soc.h b/include/sound/soc.h index f3803c2dc349..7cbe85ca040d 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -938,7 +938,7 @@ snd_soc_link_to_platform(struct snd_soc_dai_link *link, int n) { #define COMP_PLATFORM(_name) { .name = _name } #define COMP_AUX(_name) { .name = _name } #define COMP_CODEC_CONF(_name) { .name = _name } -#define COMP_DUMMY() { .name = "snd-soc-dummy", .dai_name = "snd-soc-dummy-dai", } +#define COMP_DUMMY() /* see snd_soc_fill_dummy_dai() */ extern struct snd_soc_dai_link_component null_dailink_component[0]; extern struct snd_soc_dai_link_component snd_soc_dummy_dlc; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 132946f82a29..f8524b5bfb33 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -576,6 +576,28 @@ static struct snd_soc_pcm_runtime *soc_new_pcm_runtime( return NULL; } +static void snd_soc_fill_dummy_dai(struct snd_soc_card *card) +{ + struct snd_soc_dai_link *dai_link; + int i; + + /* + * COMP_DUMMY() creates size 0 array on dai_link. + * Fill it as dummy DAI in case of CPU/Codec here. + * Do nothing for Platform. + */ + for_each_card_prelinks(card, i, dai_link) { + if (dai_link->num_cpus == 0 && dai_link->cpus) { + dai_link->num_cpus = 1; + dai_link->cpus = &snd_soc_dummy_dlc; + } + if (dai_link->num_codecs == 0 && dai_link->codecs) { + dai_link->num_codecs = 1; + dai_link->codecs = &snd_soc_dummy_dlc; + } + } +} + static void snd_soc_flush_all_delayed_work(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; @@ -2131,6 +2153,8 @@ static int snd_soc_bind_card(struct snd_soc_card *card) mutex_lock(&client_mutex); snd_soc_card_mutex_lock_root(card); + snd_soc_fill_dummy_dai(card); + snd_soc_dapm_init(&card->dapm, card, NULL); /* check whether any platform is ignore machine FE and using topology */