diff options
| author |   Kai Vehmanen <kai.vehmanen@linux.intel.com> | 2019-07-02 16:24:28 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2019-07-06 12:23:47 +0100 |
| commit | 87a6fe80d56be85bda093c4dd8a3e6535bda7e4a (patch) | |
| tree | d1978ec7aeea8a8d5f97e0655c1c57d8960f992a /sound/soc/sof/intel/hda-dsp.c | |
| parent | ASoC: SOF: add runtime idle callback (diff) | |
| download | linux-dev-87a6fe80d56be85bda093c4dd8a3e6535bda7e4a.tar.xz linux-dev-87a6fe80d56be85bda093c4dd8a3e6535bda7e4a.zip | |
ASoC: SOF: Intel: implement runtime idle for CNL/APL
Implement runtime idle for CNL/APL devices using similar runtime
PM idle logic as the Intel AZX HDA driver. If any HDA codecs are
powered when runtime suspend request comes, return -EBUSY. By doing
this, strict ordering is enforced between HDA codec and the HDA
controller.
Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20190702132428.13129-4-kai.vehmanen@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | sound/soc/sof/intel/hda-dsp.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sound/soc/sof/intel/hda-dsp.c b/sound/soc/sof/intel/hda-dsp.c index f2c5a12db930..91de4785b6a3 100644 --- a/sound/soc/sof/intel/hda-dsp.c +++ b/sound/soc/sof/intel/hda-dsp.c @@ -418,6 +418,19 @@ int hda_dsp_runtime_resume(struct snd_sof_dev *sdev) return hda_resume(sdev); } +int hda_dsp_runtime_idle(struct snd_sof_dev *sdev) +{ + struct hdac_bus *hbus = sof_to_bus(sdev); + + if (hbus->codec_powered) { + dev_dbg(sdev->dev, "some codecs still powered (%08X), not idle\n", + (unsigned int)hbus->codec_powered); + return -EBUSY; + } + + return 0; +} + int hda_dsp_runtime_suspend(struct snd_sof_dev *sdev, int state) { /* stop hda controller and power dsp off */ |