From deb2607e6c3d75c7185bb8aba658d9cd57e6e54a Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Tue, 5 Apr 2011 19:35:30 -0600 Subject: ASoC: Tegra: Suspend/resume support ASoC machine drivers that are their own platform_driver (as opposed to those using the soc-audio platform_driver) need to explicitly set up power-management operation callbacks. To avoid cut/paste, snd_soc_pm_ops also needs to be exported. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'sound/soc/soc-core.c') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index b76b74db0968..960718b3beb8 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -2060,6 +2060,7 @@ const struct dev_pm_ops snd_soc_pm_ops = { .resume = snd_soc_resume, .poweroff = snd_soc_poweroff, }; +EXPORT_SYMBOL_GPL(snd_soc_pm_ops); /* ASoC platform driver */ static struct platform_driver soc_driver = { -- cgit v1.2.3 From b04cfcf70b35e032071a6b482273cc642675c8e4 Mon Sep 17 00:00:00 2001 From: Lu Guanqun Date: Wed, 6 Apr 2011 23:25:11 +0800 Subject: ASoC: check channel mismatch between cpu_dai and codec_dai Suppose we have: cpu_dai channels_min = 1 channels_max = 1 codec_dai channels_min = 2 channels_max = 2 This is a mismatch that should not happen, however according to the current code, the result of runtime->hw will be: channels_min = 2 channels_max = 1 We better spot it early. This patch checks this mismatch. Signed-off-by: Lu Guanqun Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'sound/soc/soc-core.c') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 960718b3beb8..4f42fef26c98 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -640,7 +640,8 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) codec_dai->name, cpu_dai->name); goto config_err; } - if (!runtime->hw.channels_min || !runtime->hw.channels_max) { + if (!runtime->hw.channels_min || !runtime->hw.channels_max || + runtime->hw.channels_min > runtime->hw.channels_max) { printk(KERN_ERR "asoc: %s <-> %s No matching channels\n", codec_dai->name, cpu_dai->name); goto config_err; -- cgit v1.2.3 From c51def659870d25c735a9e06648e560ab39dbbb6 Mon Sep 17 00:00:00 2001 From: Lu Guanqun Date: Wed, 6 Apr 2011 23:25:21 +0800 Subject: ASoC: fix config error path initialize ret to invalid value so that when we reach the config error path in soc_pcm_open, it will return the correct error code. without this patch, though config error path is executed, soc_pcm_open will return 0 in snd_pcm_open_substream and then cause double release of substream. Signed-off-by: Lu Guanqun Signed-off-by: Mark Brown --- sound/soc/soc-core.c | 1 + 1 file changed, 1 insertion(+) (limited to 'sound/soc/soc-core.c') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index 4f42fef26c98..d8562ce4de7a 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -629,6 +629,7 @@ static int soc_pcm_open(struct snd_pcm_substream *substream) runtime->hw.rates |= codec_dai_drv->capture.rates; } + ret = -EINVAL; snd_pcm_limit_hw_rates(runtime); if (!runtime->hw.rates) { printk(KERN_ERR "asoc: %s <-> %s No matching rates\n", -- cgit v1.2.3 From ed77cc122a8402db8f9c3492649aa0c3fee7b385 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 3 May 2011 18:25:34 +0100 Subject: ASoC: Don't crash on PM operations The move over to exposing snd_soc_register_card() let the initialisation of the driver data we use to find the card in PM operations go AWOL. Fix this by setting the driver data when we register the card. Signed-off-by: Mark Brown Acked-by: Liam Girdwood --- sound/soc/soc-core.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'sound/soc/soc-core.c') diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c index d8562ce4de7a..dd55d1069468 100644 --- a/sound/soc/soc-core.c +++ b/sound/soc/soc-core.c @@ -3291,6 +3291,8 @@ int snd_soc_register_card(struct snd_soc_card *card) if (!card->name || !card->dev) return -EINVAL; + dev_set_drvdata(card->dev, card); + snd_soc_initialize_card_lists(card); soc_init_card_debugfs(card); -- cgit v1.2.3