Add DSP system PM callback for suspend and resume
Signed-off-by: Allen-KH Cheng <allen-kh.cheng@xxxxxxxxxxxx>
Signed-off-by: Tinghan Shen <tinghan.shen@xxxxxxxxxxxx>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@xxxxxxxxxxxxxxx>
Reviewed-by: Yaochun Hung <yc.hung@xxxxxxxxxxxx>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
sound/soc/sof/mediatek/mt8186/mt8186.c | 28 ++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/sound/soc/sof/mediatek/mt8186/mt8186.c b/sound/soc/sof/mediatek/mt8186/mt8186.c
index a04cea77bd4d..c8faa63497c6 100644
--- a/sound/soc/sof/mediatek/mt8186/mt8186.c
+++ b/sound/soc/sof/mediatek/mt8186/mt8186.c
@@ -304,6 +304,30 @@ static int mt8186_dsp_remove(struct snd_sof_dev *sdev)
return 0;
}
+static int mt8186_dsp_suspend(struct snd_sof_dev *sdev, u32 target_state)
+{
+ sof_hifixdsp_shutdown(sdev);
+ adsp_sram_power_off(sdev);
+ adsp_clock_off(sdev);
+
+ return 0;
+}
+
+static int mt8186_dsp_resume(struct snd_sof_dev *sdev)
+{
+ int ret;
+
+ ret = adsp_clock_on(sdev);
+ if (ret) {
+ dev_err(sdev->dev, "adsp_clock_on fail!\n");
+ return ret;
+ }
+
+ adsp_sram_power_on(sdev);
+
+ return ret;
+}
+
/* on mt8186 there is 1 to 1 match between type and BAR idx */
static int mt8186_get_bar_index(struct snd_sof_dev *sdev, u32 type)
{
@@ -338,6 +362,10 @@ static struct snd_sof_dsp_ops sof_mt8186_ops = {
/* Firmware ops */
.dsp_arch_ops = &sof_xtensa_arch_ops,
+ /* PM */
+ .suspend = mt8186_dsp_suspend,
+ .resume = mt8186_dsp_resume,
+
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
--
2.18.0
