Add ACP PDM DMA driver pm ops.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/amd/renoir/acp3x-pdm-dma.c | 53 ++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+)
diff --git a/sound/soc/amd/renoir/acp3x-pdm-dma.c b/sound/soc/amd/renoir/acp3x-pdm-dma.c index fd19b17f553e..942010021319 100644 --- a/sound/soc/amd/renoir/acp3x-pdm-dma.c +++ b/sound/soc/amd/renoir/acp3x-pdm-dma.c @@ -8,6 +8,7 @@ #include <linux/module.h> #include <linux/err.h> #include <linux/io.h> +#include <linux/pm_runtime.h> #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> @@ -453,19 +454,71 @@ static int acp_pdm_audio_probe(struct platform_device *pdev) dev_err(&pdev->dev, "ACP PDM IRQ request failed\n"); return -ENODEV; } + pm_runtime_set_autosuspend_delay(&pdev->dev, ACP_SUSPEND_DELAY_MS); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(&pdev->dev); + pm_runtime_allow(&pdev->dev); return 0; }
static int acp_pdm_audio_remove(struct platform_device *pdev) { + pm_runtime_disable(&pdev->dev); return 0; }
+static int acp_pdm_resume(struct device *dev) +{ + struct pdm_dev_data *adata; + struct snd_pcm_runtime *runtime; + struct pdm_stream_instance *rtd; + u32 period_bytes, buffer_len; + + adata = dev_get_drvdata(dev); + if (adata->capture_stream && adata->capture_stream->runtime) { + runtime = adata->capture_stream->runtime; + rtd = runtime->private_data; + period_bytes = frames_to_bytes(runtime, runtime->period_size); + buffer_len = frames_to_bytes(runtime, runtime->buffer_size); + config_acp_dma(rtd, SNDRV_PCM_STREAM_CAPTURE); + init_pdm_ring_buffer(MEM_WINDOW_START, buffer_len, period_bytes, + adata->acp_base); + } + enable_pdm_interrupts(adata->acp_base); + return 0; +} + +static int acp_pdm_runtime_suspend(struct device *dev) +{ + struct pdm_dev_data *adata; + + adata = dev_get_drvdata(dev); + disable_pdm_interrupts(adata->acp_base); + + return 0; +} + +static int acp_pdm_runtime_resume(struct device *dev) +{ + struct pdm_dev_data *adata; + + adata = dev_get_drvdata(dev); + enable_pdm_interrupts(adata->acp_base); + return 0; +} + +static const struct dev_pm_ops acp_pdm_pm_ops = { + .runtime_suspend = acp_pdm_runtime_suspend, + .runtime_resume = acp_pdm_runtime_resume, + .resume = acp_pdm_resume, +}; + static struct platform_driver acp_pdm_dma_driver = { .probe = acp_pdm_audio_probe, .remove = acp_pdm_audio_remove, .driver = { .name = "acp_rn_pdm_dma", + .pm = &acp_pdm_pm_ops, }, };