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ASoC: SOF: mediatek: Add DSP system PM callback for mt8195

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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>
This commit is contained in:
YC Hung 2021-11-18 12:07:49 +02:00 committed by Mark Brown
parent 424d6d1a9a
commit 163fa3a592
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 42 additions and 0 deletions
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42
sound/soc/sof/mediatek/mt8195/mt8195.c
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@ -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 |