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| author | Jeeja KP <jeeja.kp@intel.com> | 2016-06-13 17:59:04 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-06-14 14:59:33 +0100 |
| commit | 3513798ca4bceae7cb66a7f430160f60f788cede (patch) | |
| tree | 9ff2020242f910fda395f5035cd0c9e6183d2c2b /sound/soc/intel/boards/bxt_rt298.c | |
| parent | 2f74053bead3f47ddee219f521562db941ce0ae1 (diff) | |
| download | linux-0-day-3513798ca4bceae7cb66a7f430160f60f788cede.tar.gz linux-0-day-3513798ca4bceae7cb66a7f430160f60f788cede.tar.xz | |
ASoC: Intel: Add support for PM ops in bxt-rt298
We need card to be early suspended and late resumed, so use prepare and
complete for card suspend and resume.
Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Senthilnathan Veppur <senthilnathanx.veppur@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/boards/bxt_rt298.c')
| -rw-r--r-- | sound/soc/intel/boards/bxt_rt298.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/sound/soc/intel/boards/bxt_rt298.c b/sound/soc/intel/boards/bxt_rt298.c index 8b956500414ba..2ef33b113bb5d 100644 --- a/sound/soc/intel/boards/bxt_rt298.c +++ b/sound/soc/intel/boards/bxt_rt298.c @@ -454,10 +454,33 @@ static int broxton_audio_probe(struct platform_device *pdev) return devm_snd_soc_register_card(&pdev->dev, &broxton_rt298); } +/* + * we want the card to be suspend first and then platform driver. This + * allows the DAPM to tear down pipelines on suspend and then platform shuts + * down the DSP. For this use .prepare for suspending card + * + * Similarly, use complete to let DSP download firmware first and then sync + * DAPM and restore pipelines to DSP + */ +static void broxton_rt298_complete(struct device *dev) +{ + snd_soc_resume(dev); +} + +static const struct dev_pm_ops broxton_pm_ops = { + .prepare = snd_soc_suspend, + .complete = broxton_rt298_complete, + .freeze = snd_soc_suspend, + .thaw = snd_soc_resume, + .poweroff = snd_soc_poweroff, + .restore = snd_soc_resume, +}; + static struct platform_driver broxton_audio = { .probe = broxton_audio_probe, .driver = { .name = "bxt_alc298s_i2s", + .pm = &broxton_pm_ops, }, }; module_platform_driver(broxton_audio) |