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ASoC: amd: add acp3x system resume pm op 

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>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Vijendar Mukunda 2018-11-12 11:05:01 +05:30 committed by Mark Brown
parent 56e4dd8f68
commit 8de1b5ed03
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GPG Key ID: 24D68B725D5487D0
1 changed files with 46 additions and 0 deletions
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46
sound/soc/amd/raven/acp3x-pcm-dma.c
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@ -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 = {