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authorSyed Saba Kareem <Syed.SabaKareem@amd.com>2022-08-27 19:56:53 +0300
committerMark Brown <broonie@kernel.org>2022-08-30 01:14:13 +0300
commit28023a78790c33f5df0147fd00ab3cf333edd24f (patch)
tree3d835f8ba40b773bbf86daaea12f9e94d95ad051 /sound/soc/amd
parent3a543d56e3d3c9bb67ffe3ff9ad7ddf77e448019 (diff)
downloadlinux-28023a78790c33f5df0147fd00ab3cf333edd24f.tar.xz
ASoC: amd: add acp6.2 pdm driver pm ops
Add acp6.2 pdm driver pm ops. Signed-off-by: Syed Saba Kareem <Syed.SabaKareem@amd.com> Reviewed-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com> Link: https://lore.kernel.org/r/20220827165657.2343818-10-Syed.SabaKareem@amd.com Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/amd')
-rw-r--r--sound/soc/amd/ps/ps-pdm-dma.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/sound/soc/amd/ps/ps-pdm-dma.c b/sound/soc/amd/ps/ps-pdm-dma.c
index f0ec1a4f3b9d..b207b726cd82 100644
--- a/sound/soc/amd/ps/ps-pdm-dma.c
+++ b/sound/soc/amd/ps/ps-pdm-dma.c
@@ -12,6 +12,7 @@
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dai.h>
+#include <linux/pm_runtime.h>
#include "acp62.h"
@@ -377,13 +378,69 @@ static int acp62_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 acp62_pdm_audio_remove(struct platform_device *pdev)
+{
+ pm_runtime_disable(&pdev->dev);
+ return 0;
+}
+
+static int __maybe_unused acp62_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);
+ acp62_config_dma(rtd, SNDRV_PCM_STREAM_CAPTURE);
+ acp62_init_pdm_ring_buffer(PDM_MEM_WINDOW_START, buffer_len,
+ period_bytes, adata->acp62_base);
+ }
+ acp62_enable_pdm_interrupts(adata->acp62_base);
+ return 0;
+}
+
+static int __maybe_unused acp62_pdm_suspend(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp62_disable_pdm_interrupts(adata->acp62_base);
+ return 0;
+}
+
+static int __maybe_unused acp62_pdm_runtime_resume(struct device *dev)
+{
+ struct pdm_dev_data *adata;
+
+ adata = dev_get_drvdata(dev);
+ acp62_enable_pdm_interrupts(adata->acp62_base);
+ return 0;
+}
+
+static const struct dev_pm_ops acp62_pdm_pm_ops = {
+ SET_RUNTIME_PM_OPS(acp62_pdm_suspend, acp62_pdm_runtime_resume, NULL)
+ SET_SYSTEM_SLEEP_PM_OPS(acp62_pdm_suspend, acp62_pdm_resume)
+};
+
static struct platform_driver acp62_pdm_dma_driver = {
.probe = acp62_pdm_audio_probe,
+ .remove = acp62_pdm_audio_remove,
.driver = {
.name = "acp_ps_pdm_dma",
+ .pm = &acp62_pdm_pm_ops,
},
};