Add acp6x pdm driver pm ops.
Signed-off-by: Vijendar Mukunda Vijendar.Mukunda@amd.com --- sound/soc/amd/yc/acp6x-pdm-dma.c | 57 ++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+)
diff --git a/sound/soc/amd/yc/acp6x-pdm-dma.c b/sound/soc/amd/yc/acp6x-pdm-dma.c index 3da74b1896e1..a37df4d051e5 100644 --- a/sound/soc/amd/yc/acp6x-pdm-dma.c +++ b/sound/soc/amd/yc/acp6x-pdm-dma.c @@ -11,6 +11,7 @@ #include <sound/pcm_params.h> #include <sound/soc.h> #include <sound/soc-dai.h> +#include <linux/pm_runtime.h>
#include "acp6x.h"
@@ -372,13 +373,69 @@ static int acp6x_pdm_audio_probe(struct platform_device *pdev)
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 acp6x_pdm_audio_remove(struct platform_device *pdev) +{ + pm_runtime_disable(&pdev->dev); + return 0; +} + +static int __maybe_unused acp6x_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); + acp6x_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE); + acp6x_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len, + period_bytes, adata->acp6x_base); + } + acp6x_enable_pdm_interrupts(adata->acp6x_base); + return 0; +} + +static int __maybe_unused acp6x_pdm_suspend(struct device *dev) +{ + struct pdm_dev_data *adata; + + adata = dev_get_drvdata(dev); + acp6x_disable_pdm_interrupts(adata->acp6x_base); + return 0; +} + +static int __maybe_unused acp6x_pdm_runtime_resume(struct device *dev) +{ + struct pdm_dev_data *adata; + + adata = dev_get_drvdata(dev); + acp6x_enable_pdm_interrupts(adata->acp6x_base); + return 0; +} + +static const struct dev_pm_ops acp6x_pdm_pm_ops = { + SET_RUNTIME_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_runtime_resume, NULL) + SET_SYSTEM_SLEEP_PM_OPS(acp6x_pdm_suspend, acp6x_pdm_resume) +}; + static struct platform_driver acp6x_pdm_dma_driver = { .probe = acp6x_pdm_audio_probe, + .remove = acp6x_pdm_audio_remove, .driver = { .name = "acp_yc_pdm_dma", + .pm = &acp6x_pdm_pm_ops, }, };