From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

Current snd_soc_dai_link is starting to use snd_soc_dai_link_component (= modern) style for Platform, but it is still assuming single Platform so far. We will need to have multi Platform support in the not far future.

Currently only simple card is using it as sound card driver, and other drivers are converted to it from legacy style by snd_soc_init_platform(). To avoid future problem of multi Platform support, let's add num_platforms before it is too late.

In the same time, to make it same naming mothed, "platform" should be "platforms". This patch fixup it too.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- include/sound/simple_card_utils.h | 2 +- include/sound/soc.h | 3 ++- sound/soc/generic/audio-graph-card.c | 5 +++-- sound/soc/generic/simple-card-utils.c | 4 ++-- sound/soc/generic/simple-card.c | 7 ++++--- sound/soc/soc-core.c | 23 ++++++++++++++++------- 6 files changed, 28 insertions(+), 16 deletions(-)

diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h index 6d69ed2..ab5a2ba 100644 --- a/include/sound/simple_card_utils.h +++ b/include/sound/simple_card_utils.h @@ -75,7 +75,7 @@ void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai); &dai_link->codec_dai_name, \ list_name, cells_name, NULL) #define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name) \ - asoc_simple_card_parse_dai(node, dai_link->platform, \ + asoc_simple_card_parse_dai(node, dai_link->platforms, \ &dai_link->platform_of_node, \ NULL, list_name, cells_name, NULL) int asoc_simple_card_parse_dai(struct device_node *node, diff --git a/include/sound/soc.h b/include/sound/soc.h index c31b6d1..3089257 100644 --- a/include/sound/soc.h +++ b/include/sound/soc.h @@ -961,7 +961,8 @@ struct snd_soc_dai_link { */ const char *platform_name; struct device_node *platform_of_node; - struct snd_soc_dai_link_component *platform; + struct snd_soc_dai_link_component *platforms; + unsigned int num_platforms;

int id; /* optional ID for machine driver link identification */

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c index 3ec96cd..42b077c 100644 --- a/sound/soc/generic/audio-graph-card.c +++ b/sound/soc/generic/audio-graph-card.c @@ -26,7 +26,7 @@ struct graph_priv { struct asoc_simple_dai *cpu_dai; struct asoc_simple_dai *codec_dai; struct snd_soc_dai_link_component codecs; /* single codec */ - struct snd_soc_dai_link_component platform; + struct snd_soc_dai_link_component platforms; struct asoc_simple_card_data adata; struct snd_soc_codec_conf *codec_conf; unsigned int mclk_fs; @@ -687,7 +687,8 @@ static int graph_probe(struct platform_device *pdev) for (i = 0; i < li.link; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; - dai_link[i].platform = &dai_props[i].platform; + dai_link[i].platforms = &dai_props[i].platforms; + dai_link[i].num_platforms = 1; }

priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW); diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c index 336895f..3c0901d 100644 --- a/sound/soc/generic/simple-card-utils.c +++ b/sound/soc/generic/simple-card-utils.c @@ -397,8 +397,8 @@ EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai); int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link) { /* Assumes platform == cpu */ - if (!dai_link->platform->of_node) - dai_link->platform->of_node = dai_link->cpu_of_node; + if (!dai_link->platforms->of_node) + dai_link->platforms->of_node = dai_link->cpu_of_node;

return 0;

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c index 479de23..d8a0d1e 100644 --- a/sound/soc/generic/simple-card.c +++ b/sound/soc/generic/simple-card.c @@ -21,7 +21,7 @@ struct simple_priv { struct asoc_simple_dai *cpu_dai; struct asoc_simple_dai *codec_dai; struct snd_soc_dai_link_component codecs; /* single codec */ - struct snd_soc_dai_link_component platform; + struct snd_soc_dai_link_component platforms; struct asoc_simple_card_data adata; struct snd_soc_codec_conf *codec_conf; unsigned int mclk_fs; @@ -732,7 +732,8 @@ static int simple_probe(struct platform_device *pdev) for (i = 0; i < li.link; i++) { dai_link[i].codecs = &dai_props[i].codecs; dai_link[i].num_codecs = 1; - dai_link[i].platform = &dai_props[i].platform; + dai_link[i].platforms = &dai_props[i].platforms; + dai_link[i].num_platforms = 1; }

priv->dai_props = dai_props; @@ -782,7 +783,7 @@ static int simple_probe(struct platform_device *pdev) codecs->name = cinfo->codec; codecs->dai_name = cinfo->codec_dai.name;

- platform = dai_link->platform; + platform = dai_link->platforms; platform->name = cinfo->platform;

card->name = (cinfo->card) ? cinfo->card : cinfo->name; diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index de2851f..2c63921 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -915,7 +915,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card,

/* find one from the set of registered platforms */ for_each_component(component) { - if (!snd_soc_is_matching_component(dai_link->platform, + if (!snd_soc_is_matching_component(dai_link->platforms, component)) continue;

@@ -1026,7 +1026,7 @@ static void soc_remove_dai_links(struct snd_soc_card *card) static int snd_soc_init_platform(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { - struct snd_soc_dai_link_component *platform = dai_link->platform; + struct snd_soc_dai_link_component *platform = dai_link->platforms;

/* * REMOVE ME @@ -1046,7 +1046,8 @@ static int snd_soc_init_platform(struct snd_soc_card *card, if (!platform) return -ENOMEM;

- dai_link->platform = platform; + dai_link->platforms = platform; + dai_link->num_platforms = 1; dai_link->legacy_platform = 1; platform->name = dai_link->platform_name; platform->of_node = dai_link->platform_of_node; @@ -1136,11 +1137,19 @@ static int soc_init_dai_link(struct snd_soc_card *card, } }

+ /* FIXME */ + if (link->num_platforms > 1) { + dev_err(card->dev, + "ASoC: multi platform is not yet supported %s\n", + link->name); + return -EINVAL; + } + /* * Platform may be specified by either name or OF node, but * can be left unspecified, and a dummy platform will be used. */ - if (link->platform->name && link->platform->of_node) { + if (link->platforms->name && link->platforms->of_node) { dev_err(card->dev, "ASoC: Both platform name/of_node are set for %s\n", link->name); @@ -1151,8 +1160,8 @@ static int soc_init_dai_link(struct snd_soc_card *card, * Defer card registartion if platform dai component is not added to * component list. */ - if ((link->platform->of_node || link->platform->name) && - !soc_find_component(link->platform->of_node, link->platform->name)) + if ((link->platforms->of_node || link->platforms->name) && + !soc_find_component(link->platforms->of_node, link->platforms->name)) return -EPROBE_DEFER;

/* @@ -1956,7 +1965,7 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) dev_err(card->dev, "init platform error"); continue; } - dai_link->platform->name = component->name; + dai_link->platforms->name = component->name;

/* convert non BE into BE */ dai_link->no_pcm = 1;

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

We need to cleanup card resources when snd_soc_instantiate_card() was failed, or when snd_soc_unbind_card() was called. But they are cleanuping card resources on each way. Same code in many places makes code un-understandable.

This patch reuses soc_cleanup_card_resources() for cleanuping code resource. Then, it makes avoiding cleanup order. It will be called from snd_soc_instantiate_card() and snd_soc_unbind_card().

Then, original soc_cleanup_card_resources() included snd_soc_flush_all_delayed_work(), but it is now separated.

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/soc-core.c | 103 +++++++++++++++++++++------------------------------ 1 file changed, 43 insertions(+), 60 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index eeb794d..d59b5ea 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2008,6 +2008,29 @@ static void soc_check_tplg_fes(struct snd_soc_card *card) } }

+static int soc_cleanup_card_resources(struct snd_soc_card *card) +{ + /* free the ALSA card at first; this syncs with pending operations */ + if (card->snd_card) + snd_card_free(card->snd_card); + + /* remove and free each DAI */ + soc_remove_dai_links(card); + soc_remove_pcm_runtimes(card); + + /* remove auxiliary devices */ + soc_remove_aux_devices(card); + + snd_soc_dapm_free(&card->dapm); + soc_cleanup_card_debugfs(card); + + /* remove the card */ + if (card->remove) + card->remove(card); + + return 0; +} + static int snd_soc_instantiate_card(struct snd_soc_card *card) { struct snd_soc_pcm_runtime *rtd; @@ -2017,6 +2040,11 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) mutex_lock(&client_mutex); mutex_lock_nested(&card->mutex, SND_SOC_CARD_CLASS_INIT);

+ card->dapm.bias_level = SND_SOC_BIAS_OFF; + card->dapm.dev = card->dev; + card->dapm.card = card; + list_add(&card->dapm.list, &card->dapm_list); + /* check whether any platform is ignore machine FE and using topology */ soc_check_tplg_fes(card);

@@ -2024,14 +2052,14 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) for_each_card_prelinks(card, i, dai_link) { ret = soc_bind_dai_link(card, dai_link); if (ret != 0) - goto base_error; + goto probe_end; }

/* bind aux_devs too */ for (i = 0; i < card->num_aux_devs; i++) { ret = soc_bind_aux_dev(card, i); if (ret != 0) - goto base_error; + goto probe_end; }

/* add predefined DAI links to the list */ @@ -2045,16 +2073,11 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: can't create sound card for card %s: %d\n", card->name, ret); - goto base_error; + goto probe_end; }

soc_init_card_debugfs(card);

- card->dapm.bias_level = SND_SOC_BIAS_OFF; - card->dapm.dev = card->dev; - card->dapm.card = card; - list_add(&card->dapm.list, &card->dapm_list); - #ifdef CONFIG_DEBUG_FS snd_soc_dapm_debugfs_init(&card->dapm, card->debugfs_card_root); #endif @@ -2076,7 +2099,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) if (card->probe) { ret = card->probe(card); if (ret < 0) - goto card_probe_error; + goto probe_end; }

/* probe all components used by DAI links on this card */ @@ -2087,7 +2110,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: failed to instantiate card %d\n", ret); - goto probe_dai_err; + goto probe_end; } } } @@ -2095,7 +2118,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) /* probe auxiliary components */ ret = soc_probe_aux_devices(card); if (ret < 0) - goto probe_dai_err; + goto probe_end;

/* * Find new DAI links added during probing components and bind them. @@ -2107,10 +2130,10 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card)

ret = soc_init_dai_link(card, dai_link); if (ret) - goto probe_dai_err; + goto probe_end; ret = soc_bind_dai_link(card, dai_link); if (ret) - goto probe_dai_err; + goto probe_end; }

/* probe all DAI links on this card */ @@ -2121,7 +2144,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: failed to instantiate card %d\n", ret); - goto probe_dai_err; + goto probe_end; } } } @@ -2168,7 +2191,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) if (ret < 0) { dev_err(card->dev, "ASoC: %s late_probe() failed: %d\n", card->name, ret); - goto probe_aux_dev_err; + goto probe_end; } }

@@ -2178,33 +2201,17 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) if (ret < 0) { dev_err(card->dev, "ASoC: failed to register soundcard %d\n", ret); - goto probe_aux_dev_err; + goto probe_end; }

card->instantiated = 1; dapm_mark_endpoints_dirty(card); snd_soc_dapm_sync(&card->dapm); - mutex_unlock(&card->mutex); - mutex_unlock(&client_mutex); - - return 0;

-probe_aux_dev_err: - soc_remove_aux_devices(card); - -probe_dai_err: - soc_remove_dai_links(card); - -card_probe_error: - if (card->remove) - card->remove(card); - - snd_soc_dapm_free(&card->dapm); - soc_cleanup_card_debugfs(card); - snd_card_free(card->snd_card); +probe_end: + if (ret < 0) + soc_cleanup_card_resources(card);

-base_error: - soc_remove_pcm_runtimes(card); mutex_unlock(&card->mutex); mutex_unlock(&client_mutex);

@@ -2233,31 +2240,6 @@ static int soc_probe(struct platform_device *pdev) return snd_soc_register_card(card); }

-static int soc_cleanup_card_resources(struct snd_soc_card *card) -{ - /* make sure any delayed work runs */ - snd_soc_flush_all_delayed_work(card); - - /* free the ALSA card at first; this syncs with pending operations */ - snd_card_free(card->snd_card); - - /* remove and free each DAI */ - soc_remove_dai_links(card); - soc_remove_pcm_runtimes(card); - - /* remove auxiliary devices */ - soc_remove_aux_devices(card); - - snd_soc_dapm_free(&card->dapm); - soc_cleanup_card_debugfs(card); - - /* remove the card */ - if (card->remove) - card->remove(card); - - return 0; -} - /* removes a socdev */ static int soc_remove(struct platform_device *pdev) { @@ -2823,6 +2805,7 @@ static void snd_soc_unbind_card(struct snd_soc_card *card, bool unregister) if (card->instantiated) { card->instantiated = false; snd_soc_dapm_shutdown(card); + snd_soc_flush_all_delayed_work(card); soc_cleanup_card_resources(card); if (!unregister) list_add(&card->list, &unbind_card_list);

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

We need to cleanup component when soc_probe_component() was failed, or when soc_remove_component() was called. But they are cleanuping component on each way. (And soc_probe_component() doesn't call snd_soc_dapm_free(), but it should). Same code in many places makes code un-understandable.

This patch adds new soc_cleanup_component() and call it from snd_probe_component() and snd_remove_component().

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/soc-core.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 7fc10a4..8a58fa8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -937,21 +937,24 @@ static int soc_bind_dai_link(struct snd_soc_card *card, return -EPROBE_DEFER; }

+static void soc_cleanup_component(struct snd_soc_component *component) +{ + list_del(&component->card_list); + snd_soc_dapm_free(snd_soc_component_get_dapm(component)); + soc_cleanup_component_debugfs(component); + component->card = NULL; + module_put(component->dev->driver->owner); +} + static void soc_remove_component(struct snd_soc_component *component) { if (!component->card) return;

- list_del(&component->card_list); - if (component->driver->remove) component->driver->remove(component);

- snd_soc_dapm_free(snd_soc_component_get_dapm(component)); - - soc_cleanup_component_debugfs(component); - component->card = NULL; - module_put(component->dev->driver->owner); + soc_cleanup_component(component); }

static void soc_remove_dai(struct snd_soc_dai *dai, int order) @@ -1360,6 +1363,8 @@ static int soc_probe_component(struct snd_soc_card *card,

component->card = card; dapm->card = card; + INIT_LIST_HEAD(&component->card_list); + INIT_LIST_HEAD(&dapm->list); soc_set_name_prefix(card, component);

soc_init_component_debugfs(component); @@ -1422,12 +1427,9 @@ static int soc_probe_component(struct snd_soc_card *card, /* see for_each_card_components */ list_add(&component->card_list, &card->component_dev_list);

- return 0; - err_probe: - soc_cleanup_component_debugfs(component); - component->card = NULL; - module_put(component->dev->driver->owner); + if (ret < 0) + soc_cleanup_component(component);

return ret; }

From: Kuninori Morimoto kuninori.morimoto.gx@renesas.com

We can use for_each_link_codecs() without waiting for_each_rtd_codec_dai() on soc_bind_dai_link(). Let's use for_each macro

Signed-off-by: Kuninori Morimoto kuninori.morimoto.gx@renesas.com --- sound/soc/soc-core.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 8a58fa8..1c92b4a 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -870,7 +870,7 @@ static int soc_bind_dai_link(struct snd_soc_card *card, struct snd_soc_dai_link *dai_link) { struct snd_soc_pcm_runtime *rtd; - struct snd_soc_dai_link_component *codecs = dai_link->codecs; + struct snd_soc_dai_link_component *codecs; struct snd_soc_dai_link_component cpu_dai_component; struct snd_soc_component *component; struct snd_soc_dai **codec_dais; @@ -905,9 +905,8 @@ static int soc_bind_dai_link(struct snd_soc_card *card, rtd->num_codecs = dai_link->num_codecs;

/* Find CODEC from registered CODECs */ - /* we can use for_each_rtd_codec_dai() after this */ codec_dais = rtd->codec_dais; - for (i = 0; i < rtd->num_codecs; i++) { + for_each_link_codecs(dai_link, i, codecs) { codec_dais[i] = snd_soc_find_dai(&codecs[i]); if (!codec_dais[i]) { dev_info(card->dev, "ASoC: CODEC DAI %s not registered\n",