On 04/24/2017 07:09 AM, Takashi Iwai wrote:
The FE setups of Intel SST bytcr_rt5640 and bytcr_rt5651 drivers carry the ignore_suspend flag, and this prevents the suspend/resume working properly while the stream is running, since SST core code has the check of the running streams and returns -EBUSY. Drop these superfluous flags for fixing the behavior.
Also, the bytcr_rt5640 driver lacks of nonatomic flag in some FE definitions, which leads to the kernel Oops at suspend/resume like:
This patch also fixes the known bug that reboot had to be forced on some BYT platforms with a manual restart when the audio driver was enabled. Thanks Takashi!
BUG: scheduling while atomic: systemd-sleep/3144/0x00000003 Call Trace: dump_stack+0x5c/0x7a __schedule_bug+0x55/0x70 __schedule+0x63c/0x8c0 schedule+0x3d/0x90 schedule_timeout+0x16b/0x320 ? del_timer_sync+0x50/0x50 ? sst_wait_timeout+0xa9/0x170 [snd_intel_sst_core] ? sst_wait_timeout+0xa9/0x170 [snd_intel_sst_core] ? remove_wait_queue+0x60/0x60 ? sst_prepare_and_post_msg+0x275/0x960 [snd_intel_sst_core] ? sst_pause_stream+0x9b/0x110 [snd_intel_sst_core] ....
This patch addresses these appropriately, too.
Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Takashi Iwai tiwai@suse.de
sound/soc/intel/boards/bytcr_rt5640.c | 4 ++-- sound/soc/intel/boards/bytcr_rt5651.c | 2 -- 2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/sound/soc/intel/boards/bytcr_rt5640.c b/sound/soc/intel/boards/bytcr_rt5640.c index 5c7219fb3aa8..9e2a3404a836 100644 --- a/sound/soc/intel/boards/bytcr_rt5640.c +++ b/sound/soc/intel/boards/bytcr_rt5640.c @@ -621,7 +621,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = { .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform",
.ignore_suspend = 1,
.nonatomic = true,@@ -634,7 +634,6 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = { .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform",
.ignore_suspend = 1,@@ -661,6 +660,7 @@ static struct snd_soc_dai_link byt_rt5640_dais[] = { | SND_SOC_DAIFMT_CBS_CFS, .be_hw_params_fixup = byt_rt5640_codec_fixup, .ignore_suspend = 1,
.nonatomic = true,diff --git a/sound/soc/intel/boards/bytcr_rt5651.c b/sound/soc/intel/boards/bytcr_rt5651.c index 3186f015939f..8164bec63bf1 100644 --- a/sound/soc/intel/boards/bytcr_rt5651.c +++ b/sound/soc/intel/boards/bytcr_rt5651.c @@ -235,7 +235,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = { .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform",
.ignore_suspend = 1,@@ -249,7 +248,6 @@ static struct snd_soc_dai_link byt_rt5651_dais[] = { .codec_dai_name = "snd-soc-dummy-dai", .codec_name = "snd-soc-dummy", .platform_name = "sst-mfld-platform",
.ignore_suspend = 1,