[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-Id: <20211117093734.17407-22-daniel.baluta@oss.nxp.com>
Date: Wed, 17 Nov 2021 11:37:34 +0200
From: Daniel Baluta <daniel.baluta@....nxp.com>
To: broonie@...nel.org, alsa-devel@...a-project.org
Cc: pierre-louis.bossart@...ux.intel.com, lgirdwood@...il.com,
daniel.baluta@....com, daniel.baluta@...il.com,
AjitKumar.Pandey@....com, Balakishore.pati@....com,
vsreddy@....com, Julian.Schroeder@....com,
vishnuvardhanrao.ravulapati@....com, linux-kernel@...r.kernel.org,
yc.hung@...iatek.com, linux-mediatek@...ts.infradead.org
Subject: [PATCH 21/21] ASoC: SOF: mediatek: Add DSP system PM callback for mt8195
From: YC Hung <yc.hung@...iatek.com>
Add DSP system PM callback for suspend and resume
Signed-off-by: YC Hung <yc.hung@...iatek.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@....com>
Signed-off-by: Daniel Baluta <daniel.baluta@....com>
---
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/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 |
--
2.27.0
Powered by blists - more mailing lists