diff mbox series

[10/11] ASoC: amd: add acp3x system resume pm op

Message ID 1542000903-19020-11-git-send-email-Vijendar.Mukunda@amd.com (mailing list archive)
State Accepted
Commit 8de1b5ed03370e46bf9f5b425e3f260dac3bc336
Headers show
Series [01/11] ASoC: AMD: add ACP 3.x IP register header | expand

Commit Message

Vijendar Mukunda Nov. 12, 2018, 5:35 a.m. UTC 
When system wide suspend happens, ACP will be powered off.
When system resumes, all the runtime configuration data for
ACP needs to be programmed again.
Added 'resume'pm call back to ACP pm ops.

Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Tested-by: Ravulapati Vishnu vardhan Rao <Vishnuvardhanrao.Ravulapati@amd.com>
Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
---
 sound/soc/amd/raven/acp3x-pcm-dma.c | 46 +++++++++++++++++++++++++++++++++++++
 1 file changed, 46 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index 710c5c5..2e61cef 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -690,6 +690,51 @@  static int acp3x_audio_remove(struct platform_device *pdev)
 	return 0;
 }
 
+static int acp3x_resume(struct device *dev)
+{
+	int status;
+	u32 val;
+	struct i2s_dev_data *adata = dev_get_drvdata(dev);
+
+	status = acp3x_init(adata->acp3x_base);
+	if (status)
+		return -ENODEV;
+
+	if (adata->play_stream && adata->play_stream->runtime) {
+		struct i2s_stream_instance *rtd =
+			adata->play_stream->runtime->private_data;
+		config_acp3x_dma(rtd, SNDRV_PCM_STREAM_PLAYBACK);
+		rv_writel((rtd->xfer_resolution  << 3),
+			  rtd->acp3x_base + mmACP_BTTDM_ITER);
+		if (adata->tdm_mode == true) {
+			rv_writel(adata->tdm_fmt, adata->acp3x_base +
+				  mmACP_BTTDM_TXFRMT);
+			val = rv_readl(adata->acp3x_base + mmACP_BTTDM_ITER);
+			rv_writel((val | 0x2), adata->acp3x_base +
+				  mmACP_BTTDM_ITER);
+		}
+	}
+
+	if (adata->capture_stream && adata->capture_stream->runtime) {
+		struct i2s_stream_instance *rtd =
+			adata->capture_stream->runtime->private_data;
+		config_acp3x_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+		rv_writel((rtd->xfer_resolution  << 3),
+			  rtd->acp3x_base + mmACP_BTTDM_IRER);
+		if (adata->tdm_mode == true) {
+			rv_writel(adata->tdm_fmt, adata->acp3x_base +
+				  mmACP_BTTDM_RXFRMT);
+			val = rv_readl(adata->acp3x_base + mmACP_BTTDM_IRER);
+			rv_writel((val | 0x2), adata->acp3x_base +
+				  mmACP_BTTDM_IRER);
+		}
+	}
+
+	rv_writel(1, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB);
+	return 0;
+}
+
+
 static int acp3x_pcm_runtime_suspend(struct device *dev)
 {
 	int status;
@@ -721,6 +766,7 @@  static int acp3x_pcm_runtime_resume(struct device *dev)
 static const struct dev_pm_ops acp3x_pm_ops = {
 	.runtime_suspend = acp3x_pcm_runtime_suspend,
 	.runtime_resume = acp3x_pcm_runtime_resume,
+	.resume = acp3x_resume,
 };
 
 static struct platform_driver acp3x_dma_driver = {