diff options
| author | Ranjani Sridharan <ranjani.sridharan@linux.intel.com> | 2019-04-30 18:09:31 -0500 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-05-03 15:01:45 +0900 |
| commit | ed3baacd76baa045fe101ce04a9e46d48c188495 (patch) | |
| tree | efffa3dd505c148ad9f5824c2943ce9f97b552cd /sound/soc/sof/ops.h | |
| parent | 20d0aff739bed801bbe67ebed8012f3d9849b29d (diff) | |
ASoC: SOF: intel: hda: add hw_params_upon_resume flag for hda stream
The prepare() ioctl for BE dai link gets called both
when the stream is started and when it is resumed from
suspend. SOF uses this ioctl to set the hw params
again only if the stream has been suspended.
When the stream is started, the hw_params ioctl gets called
before prepare() and hw_params is set for the BE dai link.
So the prepare call does not need to do anything further.
When the stream resumes after system suspend, SOF requires
that the hw_params be set again for the BE dai. In order
to determine which streams should set the hw params
during prepare(), an internal flag called "hw_params_upon_resume"
is introduced in struct sof_intel_hda_stream. The flag is set
for hda streams when the sof device suspends and is
cleared after hw_params is set.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/ops.h')
| -rw-r--r-- | sound/soc/sof/ops.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/soc/sof/ops.h b/sound/soc/sof/ops.h index 2a5d4c63f160..b8e2bf1fee24 100644 --- a/sound/soc/sof/ops.h +++ b/sound/soc/sof/ops.h @@ -134,6 +134,12 @@ static inline int snd_sof_dsp_runtime_suspend(struct snd_sof_dev *sdev, return 0; } +static inline void snd_sof_dsp_hw_params_upon_resume(struct snd_sof_dev *sdev) +{ + if (sof_ops(sdev)->set_hw_params_upon_resume) + sof_ops(sdev)->set_hw_params_upon_resume(sdev); +} + static inline int snd_sof_dsp_set_clk(struct snd_sof_dev *sdev, u32 freq) { if (sof_ops(sdev)->set_clk) |