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From bcec114624961692bfa27db57442c1c5d6e7e7ba Mon Sep 17 00:00:00 2001
From: Maruthi Srinivas Bayyavarapu <Maruthi.Bayyavarapu@amd.com>
Date: Thu, 30 Mar 2017 15:47:49 +0530
Subject: [PATCH 1108/4131] ASoC: AMD: Add ACP3x system resume pm op
When audio usecase in progress and system wide suspend happens, ACP will
be powered off and when system resumes, for audio usecase to continue,
all the runtime configuration data needs to be programmed again. Added
'resume'pm call back to ACP pm ops.
Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---
sound/soc/amd/raven/acp3x-pcm-dma.c | 46 +++++++++++++++++++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c
index a5d3807..5246d28 100644
--- a/sound/soc/amd/raven/acp3x-pcm-dma.c
+++ b/sound/soc/amd/raven/acp3x-pcm-dma.c
@@ -709,6 +709,51 @@ 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;
@@ -740,6 +785,7 @@ 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 = {
--
2.7.4
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