@@ -13,6 +13,7 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
#include "acp70.h"
@@ -388,13 +389,69 @@ static int acp70_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_mark_last_busy(&pdev->dev);
+ pm_runtime_set_active(&pdev->dev);
+ pm_runtime_enable(&pdev->dev);
return 0;
}
+static void acp70_pdm_audio_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+}
+
+static int __maybe_unused acp70_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);
+ acp70_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+ acp70_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,
+ period_bytes, adata->acp70_base);
+ }
+ acp70_enable_pdm_interrupts(adata);
+ return 0;
+}
+
+static int __maybe_unused acp70_pdm_suspend(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp70_disable_pdm_interrupts(adata);
+ return 0;
+}
+
+static int __maybe_unused acp70_pdm_runtime_resume(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp70_enable_pdm_interrupts(adata);
+ return 0;
+}
+
+static const struct dev_pm_ops acp70_pdm_pm_ops = {
+ SET_RUNTIME_PM_OPS(acp70_pdm_suspend, acp70_pdm_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(acp70_pdm_suspend, acp70_pdm_resume)
+};
+
static struct platform_driver acp70_pdm_dma_driver = {
.probe = acp70_pdm_audio_probe,
+ .remove = acp70_pdm_audio_remove,
.driver = {
.name = "acp70_pdm_dma",
+ .pm = &acp70_pdm_pm_ops,
},
};
@@ -133,6 +133,9 @@
#define SDW_MAX_BUFFER (SDW_PLAYBACK_MAX_PERIOD_SIZE * SDW_PLAYBACK_MAX_NUM_PERIODS)
#define SDW_MIN_BUFFER SDW_MAX_BUFFER
+/* time in ms for runtime suspend delay */
+#define ACP_SUSPEND_DELAY_MS 2000
+
enum acp_config {
ACP_CONFIG_0 = 0,
ACP_CONFIG_1,
Add acp pdm driver pm ops for ACP7.0 & ACP7.1 platforms. Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> --- sound/soc/amd/acp70/acp70-pdm-dma.c | 57 +++++++++++++++++++++++++++++ sound/soc/amd/acp70/acp70.h | 3 ++ 2 files changed, 60 insertions(+)