From 12023a9af8f6602e09d9276d3476f6861ca0f127 Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Fri, 21 Mar 2014 16:27:25 +0100 Subject: [PATCH 1/4] ASoC: core: Add helpers for codec and codec_dai search Add dedicated helpers for codec and codec_dai search in preparation for DAI-multicodec. It will help reducing the extra indentation that will be introduced by the iteration over multiple codecs. Previous implementation unnecessarily kept searching for a matching codec in the remaining register codecs even if it was already found. Fix that by returning in case of matching. Signed-off-by: Misael Lopez Cruz [fparent@baylibre.com: Adapt to 3.14+] Signed-off-by: Fabien Parent Signed-off-by: Benoit Cousson Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 79 ++++++++++++++++++++++++++------------------ 1 file changed, 47 insertions(+), 32 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 051c006281f5..674da7049db4 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -854,14 +854,47 @@ EXPORT_SYMBOL_GPL(snd_soc_resume); static const struct snd_soc_dai_ops null_dai_ops = { }; +static struct snd_soc_codec *soc_find_codec(const struct device_node *codec_of_node, + const char *codec_name) +{ + struct snd_soc_codec *codec; + + list_for_each_entry(codec, &codec_list, list) { + if (codec_of_node) { + if (codec->dev->of_node != codec_of_node) + continue; + } else { + if (strcmp(codec->name, codec_name)) + continue; + } + + return codec; + } + + return NULL; +} + +static struct snd_soc_dai *soc_find_codec_dai(struct snd_soc_codec *codec, + const char *codec_dai_name) +{ + struct snd_soc_dai *codec_dai; + + list_for_each_entry(codec_dai, &codec->component.dai_list, list) { + if (!strcmp(codec_dai->name, codec_dai_name)) { + return codec_dai; + } + } + + return NULL; +} + static int soc_bind_dai_link(struct snd_soc_card *card, int num) { struct snd_soc_dai_link *dai_link = &card->dai_link[num]; struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; struct snd_soc_component *component; - struct snd_soc_codec *codec; struct snd_soc_platform *platform; - struct snd_soc_dai *codec_dai, *cpu_dai; + struct snd_soc_dai *cpu_dai; const char *platform_name; dev_dbg(card->dev, "ASoC: binding %s at idx %d\n", dai_link->name, num); @@ -889,42 +922,24 @@ static int soc_bind_dai_link(struct snd_soc_card *card, int num) return -EPROBE_DEFER; } - /* Find CODEC from registered CODECs */ - list_for_each_entry(codec, &codec_list, list) { - if (dai_link->codec_of_node) { - if (codec->dev->of_node != dai_link->codec_of_node) - continue; - } else { - if (strcmp(codec->name, dai_link->codec_name)) - continue; - } - - rtd->codec = codec; - - /* - * CODEC found, so find CODEC DAI from registered DAIs from - * this CODEC - */ - list_for_each_entry(codec_dai, &codec->component.dai_list, list) { - if (!strcmp(codec_dai->name, dai_link->codec_dai_name)) { - rtd->codec_dai = codec_dai; - break; - } - } - - if (!rtd->codec_dai) { - dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", - dai_link->codec_dai_name); - return -EPROBE_DEFER; - } - } - + /* Find CODEC from registered list */ + rtd->codec = soc_find_codec(dai_link->codec_of_node, + dai_link->codec_name); if (!rtd->codec) { dev_err(card->dev, "ASoC: CODEC %s not registered\n", dai_link->codec_name); return -EPROBE_DEFER; } + /* Find CODEC DAI from registered list */ + rtd->codec_dai = soc_find_codec_dai(rtd->codec, + dai_link->codec_dai_name); + if (!rtd->codec_dai) { + dev_err(card->dev, "ASoC: CODEC DAI %s not registered\n", + dai_link->codec_dai_name); + return -EPROBE_DEFER; + } + /* if there's no platform we match on the empty platform */ platform_name = dai_link->platform_name; if (!platform_name && !dai_link->platform_of_node) From b0aa88af23155b18efb8c18ace963fa75778561a Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Fri, 21 Mar 2014 16:27:26 +0100 Subject: [PATCH 2/4] ASoC: core: Add helpers for codec DAI probe & remove Add helper functions for codec DAI probe and remove in preparation for DAI-multicodec support. No functional change. Signed-off-by: Misael Lopez Cruz [fparent@baylibre.com: Adapt to 3.14+] Signed-off-by: Fabien Parent Signed-off-by: Benoit Cousson Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 74 ++++++++++++++++++++++++++++---------------- 1 file changed, 47 insertions(+), 27 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 674da7049db4..1e4945d614a4 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1010,6 +1010,24 @@ static void soc_remove_codec(struct snd_soc_codec *codec) module_put(codec->dev->driver->owner); } +static void soc_remove_codec_dai(struct snd_soc_dai *codec_dai, int order) +{ + int err; + + if (codec_dai && codec_dai->probed && + codec_dai->driver->remove_order == order) { + if (codec_dai->driver->remove) { + err = codec_dai->driver->remove(codec_dai); + if (err < 0) + dev_err(codec_dai->dev, + "ASoC: failed to remove %s: %d\n", + codec_dai->name, err); + } + codec_dai->probed = 0; + list_del(&codec_dai->card_list); + } +} + static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) { struct snd_soc_pcm_runtime *rtd = &card->rtd[num]; @@ -1025,18 +1043,7 @@ static void soc_remove_link_dais(struct snd_soc_card *card, int num, int order) } /* remove the CODEC DAI */ - if (codec_dai && codec_dai->probed && - codec_dai->driver->remove_order == order) { - if (codec_dai->driver->remove) { - err = codec_dai->driver->remove(codec_dai); - if (err < 0) - dev_err(codec_dai->dev, - "ASoC: failed to remove %s: %d\n", - codec_dai->name, err); - } - codec_dai->probed = 0; - list_del(&codec_dai->card_list); - } + soc_remove_codec_dai(codec_dai, order); /* remove the cpu_dai */ if (cpu_dai && cpu_dai->probed && @@ -1381,6 +1388,31 @@ static int soc_probe_link_components(struct snd_soc_card *card, int num, return 0; } +static int soc_probe_codec_dai(struct snd_soc_card *card, + struct snd_soc_dai *codec_dai, + int order) +{ + int ret; + + if (!codec_dai->probed && codec_dai->driver->probe_order == order) { + if (codec_dai->driver->probe) { + ret = codec_dai->driver->probe(codec_dai); + if (ret < 0) { + dev_err(codec_dai->dev, + "ASoC: failed to probe CODEC DAI %s: %d\n", + codec_dai->name, ret); + return ret; + } + } + + /* mark codec_dai as probed and add to card dai list */ + codec_dai->probed = 1; + list_add(&codec_dai->card_list, &card->dai_dev_list); + } + + return 0; +} + static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) { struct snd_soc_dai_link *dai_link = &card->dai_link[num]; @@ -1430,21 +1462,9 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) } /* probe the CODEC DAI */ - if (!codec_dai->probed && codec_dai->driver->probe_order == order) { - if (codec_dai->driver->probe) { - ret = codec_dai->driver->probe(codec_dai); - if (ret < 0) { - dev_err(codec_dai->dev, - "ASoC: failed to probe CODEC DAI %s: %d\n", - codec_dai->name, ret); - return ret; - } - } - - /* mark codec_dai as probed and add to card dai list */ - codec_dai->probed = 1; - list_add(&codec_dai->card_list, &card->dai_dev_list); - } + ret = soc_probe_codec_dai(card, codec_dai, order); + if (ret) + return ret; /* complete DAI probe during last probe */ if (order != SND_SOC_COMP_ORDER_LAST) From 2436a723f3e1fbca517c9318efe9af5ecf7cbcbb Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Fri, 21 Mar 2014 16:27:27 +0100 Subject: [PATCH 3/4] ASoC: core: Add helper for DAI widgets linking Add a helper for DAI widgets linking in preparation for DAI-multicodec support. No functional change. Signed-off-by: Misael Lopez Cruz [fparent@baylibre.com: Adapt to 3.14+] Signed-off-by: Fabien Parent Signed-off-by: Benoit Cousson Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 64 +++++++++++++++++++++++++++----------------- 1 file changed, 40 insertions(+), 24 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 1e4945d614a4..4c0f7dccbd83 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1413,6 +1413,42 @@ static int soc_probe_codec_dai(struct snd_soc_card *card, return 0; } +static int soc_link_dai_widgets(struct snd_soc_card *card, + struct snd_soc_dai_link *dai_link, + struct snd_soc_dai *cpu_dai, + struct snd_soc_dai *codec_dai) +{ + struct snd_soc_dapm_widget *play_w, *capture_w; + int ret; + + /* link the DAI widgets */ + play_w = codec_dai->playback_widget; + capture_w = cpu_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + capture_w, play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + return ret; + } + } + + play_w = cpu_dai->playback_widget; + capture_w = codec_dai->capture_widget; + if (play_w && capture_w) { + ret = snd_soc_dapm_new_pcm(card, dai_link->params, + capture_w, play_w); + if (ret != 0) { + dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", + play_w->name, capture_w->name, ret); + return ret; + } + } + + return 0; +} + static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) { struct snd_soc_dai_link *dai_link = &card->dai_link[num]; @@ -1421,7 +1457,6 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) struct snd_soc_platform *platform = rtd->platform; struct snd_soc_dai *codec_dai = rtd->codec_dai; struct snd_soc_dai *cpu_dai = rtd->cpu_dai; - struct snd_soc_dapm_widget *play_w, *capture_w; int ret; dev_dbg(card->dev, "ASoC: probe %s dai link %d late %d\n", @@ -1502,29 +1537,10 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) codec2codec_close_delayed_work); /* link the DAI widgets */ - play_w = codec_dai->playback_widget; - capture_w = cpu_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } - - play_w = cpu_dai->playback_widget; - capture_w = codec_dai->capture_widget; - if (play_w && capture_w) { - ret = snd_soc_dapm_new_pcm(card, dai_link->params, - capture_w, play_w); - if (ret != 0) { - dev_err(card->dev, "ASoC: Can't link %s to %s: %d\n", - play_w->name, capture_w->name, ret); - return ret; - } - } + ret = soc_link_dai_widgets(card, dai_link, + cpu_dai, codec_dai); + if (ret) + return ret; } } From 02c9c7b91c2831b7f4e43c9931007e46f856b659 Mon Sep 17 00:00:00 2001 From: Misael Lopez Cruz Date: Fri, 21 Mar 2014 16:27:28 +0100 Subject: [PATCH 4/4] ASoC: core: Add function for ac97 codec registration Add codec registration specific function in preparation for DAI-multicodec support. No functional change. Signed-off-by: Misael Lopez Cruz [fparent@baylibre.com: Adapt to 3.14+] Signed-off-by: Fabien Parent Signed-off-by: Benoit Cousson Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 29 ++++++++++++++++++++--------- 1 file changed, 20 insertions(+), 9 deletions(-) diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4c0f7dccbd83..42c5835ba92f 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -1552,14 +1552,15 @@ static int soc_probe_link_dais(struct snd_soc_card *card, int num, int order) } #ifdef CONFIG_SND_SOC_AC97_BUS -static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +static int soc_register_ac97_codec(struct snd_soc_codec *codec, + struct snd_soc_dai *codec_dai) { int ret; /* Only instantiate AC97 if not already done by the adaptor * for the generic AC97 subsystem. */ - if (rtd->codec_dai->driver->ac97_control && !rtd->codec->ac97_registered) { + if (codec_dai->driver->ac97_control && !codec->ac97_registered) { /* * It is possible that the AC97 device is already registered to * the device subsystem. This happens when the device is created @@ -1568,28 +1569,38 @@ static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) * * In those cases we don't try to register the device again. */ - if (!rtd->codec->ac97_created) + if (!codec->ac97_created) return 0; - ret = soc_ac97_dev_register(rtd->codec); + ret = soc_ac97_dev_register(codec); if (ret < 0) { - dev_err(rtd->codec->dev, + dev_err(codec->dev, "ASoC: AC97 device register failed: %d\n", ret); return ret; } - rtd->codec->ac97_registered = 1; + codec->ac97_registered = 1; } return 0; } -static void soc_unregister_ac97_dai_link(struct snd_soc_codec *codec) +static int soc_register_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +{ + return soc_register_ac97_codec(rtd->codec, rtd->codec_dai); +} + +static void soc_unregister_ac97_codec(struct snd_soc_codec *codec) { if (codec->ac97_registered) { soc_ac97_dev_unregister(codec); codec->ac97_registered = 0; } } + +static void soc_unregister_ac97_dai_link(struct snd_soc_pcm_runtime *rtd) +{ + soc_unregister_ac97_codec(rtd->codec); +} #endif static int soc_check_aux_dev(struct snd_soc_card *card, int num) @@ -1888,7 +1899,7 @@ static int snd_soc_instantiate_card(struct snd_soc_card *card) dev_err(card->dev, "ASoC: failed to register AC97: %d\n", ret); while (--i >= 0) - soc_unregister_ac97_dai_link(card->rtd[i].codec); + soc_unregister_ac97_dai_link(&card->rtd[i]); goto probe_aux_dev_err; } } @@ -2324,7 +2335,7 @@ void snd_soc_free_ac97_codec(struct snd_soc_codec *codec) { mutex_lock(&codec->mutex); #ifdef CONFIG_SND_SOC_AC97_BUS - soc_unregister_ac97_dai_link(codec); + soc_unregister_ac97_codec(codec); #endif kfree(codec->ac97->bus); kfree(codec->ac97);