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charset="utf-8" From: YC Hung Add DSP system PM callback for suspend and resume Signed-off-by: YC Hung Reviewed-by: Pierre-Louis Bossart Reviewed-by: Daniel Baluta Signed-off-by: Daniel Baluta --- sound/soc/sof/mediatek/mt8195/mt8195.c | 42 ++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/sound/soc/sof/mediatek/mt8195/mt8195.c b/sound/soc/sof/mediate= k/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; } =20 +static int mt8195_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state) +{ + struct platform_device *pdev =3D container_of(sdev->dev, struct platform_= device, dev); + int ret; + + /* stall and reset dsp */ + sof_hifixdsp_shutdown(sdev); + + /* power down adsp sram */ + ret =3D 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 =3D adsp_clock_on(sdev); + if (ret) { + dev_err(sdev->dev, "adsp_clock_on fail!\n"); + return ret; + } + + /* power on adsp sram */ + ret =3D 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 =3D { .drv =3D mt8195_dai, .num_drv =3D ARRAY_SIZE(mt8195_dai), =20 + /* PM */ + .suspend =3D mt8195_dsp_suspend, + .resume =3D mt8195_dsp_resume, + /* ALSA HW info flags */ .hw_info =3D SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | --=20 2.27.0