Commit 37232313 authored by Takashi Iwai's avatar Takashi Iwai Committed by Sasha Levin

ASoC: intel: Fix PM and non-atomic crash in bytcr drivers

[ Upstream commit 6e4cac23 ]

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:

  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.
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
Acked-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org> # v4.1+
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent b583cc93
......@@ -149,7 +149,7 @@ static struct snd_soc_dai_link byt_dailink[] = {
.codec_dai_name = "snd-soc-dummy-dai",
.codec_name = "snd-soc-dummy",
.platform_name = "sst-mfld-platform",
.ignore_suspend = 1,
.nonatomic = true,
.dynamic = 1,
.dpcm_playback = 1,
.dpcm_capture = 1,
......@@ -176,6 +176,7 @@ static struct snd_soc_dai_link byt_dailink[] = {
| SND_SOC_DAIFMT_CBS_CFS,
.be_hw_params_fixup = byt_codec_fixup,
.ignore_suspend = 1,
.nonatomic = true,
.dpcm_playback = 1,
.dpcm_capture = 1,
.ops = &byt_be_ssp2_ops,
......
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