diff options
| author | YC Hung <yc.hung@mediatek.com> | 2021-11-18 11:07:49 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-11-18 14:57:43 +0100 |
| commit | 163fa3a5927e1d8f948ea1fc16c897944933a06a (patch) | |
| tree | f87e024905acd9a5c56192ddcf246fd971d3541a /sound/soc/sof/mediatek | |
| parent | ASoC: SOF: mediatek: Add mt8195 dsp clock support (diff) | |
| download | linux-163fa3a5927e1d8f948ea1fc16c897944933a06a.tar.xz linux-163fa3a5927e1d8f948ea1fc16c897944933a06a.zip | |
ASoC: SOF: mediatek: Add DSP system PM callback for mt8195
Add DSP system PM callback for suspend and resume
Signed-off-by: YC Hung <yc.hung@mediatek.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20211118100749.54628-9-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/sof/mediatek')
| -rw-r--r-- | sound/soc/sof/mediatek/mt8195/mt8195.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediatek/mt8195/mt8195.c index 5bfae9379ac8..40e5a25875a6 100644 --- a/sound/soc/sof/mediatek/mt8195/mt8195.c +++ b/sound/soc/sof/mediatek/mt8195/mt8195.c @@ -311,6 +311,44 @@ static int mt8195_dsp_remove(struct snd_sof_dev *sdev) return 0; } +static int mt8195_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state) +{ + struct platform_device *pdev = container_of(sdev->dev, struct platform_device, dev); + int ret; + + /* stall and reset dsp */ + sof_hifixdsp_shutdown(sdev); + + /* power down adsp sram */ + ret = adsp_sram_power_on(&pdev->dev, false); + if (ret) { + dev_err(sdev->dev, "adsp_sram_power_off fail!\n"); + return ret; + } + + /* turn off adsp clock */ + return adsp_clock_off(sdev); +} + +static int mt8195_dsp_resume(struct snd_sof_dev *sdev) +{ + int ret; + + /* turn on adsp clock */ + ret = adsp_clock_on(sdev); + if (ret) { + dev_err(sdev->dev, "adsp_clock_on fail!\n"); + return ret; + } + + /* power on adsp sram */ + ret = adsp_sram_power_on(sdev->dev, true); + if (ret) + dev_err(sdev->dev, "adsp_sram_power_on fail!\n"); + + return ret; +} + /* on mt8195 there is 1 to 1 match between type and BAR idx */ static int mt8195_get_bar_index(struct snd_sof_dev *sdev, u32 type) { @@ -382,6 +420,10 @@ const struct snd_sof_dsp_ops sof_mt8195_ops = { .drv = mt8195_dai, .num_drv = ARRAY_SIZE(mt8195_dai), + /* PM */ + .suspend = mt8195_dsp_suspend, + .resume = mt8195_dsp_resume, + /* ALSA HW info flags */ .hw_info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | |