diff options
| -rw-r--r-- | sound/soc/soc-core.c | 99 |
1 files changed, 79 insertions, 20 deletions
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index ffae370b45d..717db0e6499 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -780,30 +780,54 @@ static int soc_resume(struct platform_device *pdev) #define soc_resume NULL #endif -/* probes a new socdev */ -static int soc_probe(struct platform_device *pdev) -{ - int ret = 0, i; - struct snd_soc_device *socdev = platform_get_drvdata(pdev); - struct snd_soc_card *card = socdev->card; - struct snd_soc_platform *platform = card->platform; - struct snd_soc_codec_device *codec_dev = socdev->codec_dev; - - /* Bodge while we push things out of socdev */ - card->socdev = socdev; +static void snd_soc_instantiate_card(struct snd_soc_card *card) +{ + struct platform_device *pdev = container_of(card->dev, + struct platform_device, + dev); + struct snd_soc_codec_device *codec_dev = card->socdev->codec_dev; + struct snd_soc_platform *platform; + struct snd_soc_dai *dai; + int i, found, ret; + + if (card->instantiated) + return; + + found = 0; + list_for_each_entry(platform, &platform_list, list) + if (card->platform == platform) { + found = 1; + break; + } + if (!found) { + dev_dbg(card->dev, "Platform %s not registered\n", + card->platform->name); + return; + } - /* Bodge while we unpick instantiation */ - card->dev = &pdev->dev; - ret = snd_soc_register_card(card); - if (ret != 0) { - dev_err(&pdev->dev, "Failed to register card\n"); - return ret; + for (i = 0; i < card->num_links; i++) { + found = 0; + list_for_each_entry(dai, &dai_list, list) + if (card->dai_link[i].cpu_dai == dai) { + found = 1; + break; + } + if (!found) { + dev_dbg(card->dev, "DAI %s not registered\n", + card->dai_link[i].cpu_dai->name); + return; + } } + /* Note that we do not current check for codec components */ + + dev_dbg(card->dev, "All components present, instantiating\n"); + + /* Found everything, bring it up */ if (card->probe) { ret = card->probe(pdev); if (ret < 0) - return ret; + return; } for (i = 0; i < card->num_links; i++) { @@ -834,7 +858,9 @@ static int soc_probe(struct platform_device *pdev) INIT_WORK(&card->deferred_resume_work, soc_resume_deferred); #endif - return 0; + card->instantiated = 1; + + return; platform_err: if (codec_dev->remove) @@ -849,8 +875,38 @@ cpu_dai_err: if (card->remove) card->remove(pdev); +} - return ret; +/* + * Attempt to initialise any uninitalised cards. Must be called with + * client_mutex. + */ +static void snd_soc_instantiate_cards(void) +{ + struct snd_soc_card *card; + list_for_each_entry(card, &card_list, list) + snd_soc_instantiate_card(card); +} + +/* probes a new socdev */ +static int soc_probe(struct platform_device *pdev) +{ + int ret = 0; + struct snd_soc_device *socdev = platform_get_drvdata(pdev); + struct snd_soc_card *card = socdev->card; + + /* Bodge while we push things out of socdev */ + card->socdev = socdev; + + /* Bodge while we unpick instantiation */ + card->dev = &pdev->dev; + ret = snd_soc_register_card(card); + if (ret != 0) { + dev_err(&pdev->dev, "Failed to register card\n"); + return ret; + } + + return 0; } /* removes a socdev */ @@ -1994,6 +2050,7 @@ static int snd_soc_register_card(struct snd_soc_card *card) mutex_lock(&client_mutex); list_add(&card->list, &card_list); + snd_soc_instantiate_cards(); mutex_unlock(&client_mutex); dev_dbg(card->dev, "Registered card '%s'\n", card->name); @@ -2039,6 +2096,7 @@ int snd_soc_register_dai(struct snd_soc_dai *dai) mutex_lock(&client_mutex); list_add(&dai->list, &dai_list); + snd_soc_instantiate_cards(); mutex_unlock(&client_mutex); pr_debug("Registered DAI '%s'\n", dai->name); @@ -2117,6 +2175,7 @@ int snd_soc_register_platform(struct snd_soc_platform *platform) mutex_lock(&client_mutex); list_add(&platform->list, &platform_list); + snd_soc_instantiate_cards(); mutex_unlock(&client_mutex); pr_debug("Registered platform '%s'\n", platform->name); |