diff options
author | Vijendar Mukunda <Vijendar.Mukunda@amd.com> | 2021-10-18 14:20:40 +0300 |
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committer | Mark Brown <broonie@kernel.org> | 2021-10-18 23:11:43 +0300 |
commit | 4c2e711af2193bc58f247f32edc30ee6a15e71f2 (patch) | |
tree | 1d411d69f491fd07710f86afb53b2b81ae0f0278 /sound/soc/amd/yc/acp6x-pdm-dma.c | |
parent | c8212df7bc0f2ed323ad1da96106792103ee94f1 (diff) | |
download | linux-4c2e711af2193bc58f247f32edc30ee6a15e71f2.tar.xz |
ASoC: amd: add acp6x pdm driver pm ops
Add acp6x pdm driver pm ops.
Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@amd.com>
Link: https://lore.kernel.org/r/20211018112044.1705805-10-Vijendar.Mukunda@amd.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/amd/yc/acp6x-pdm-dma.c')
-rw-r--r-- | sound/soc/amd/yc/acp6x-pdm-dma.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sound/soc/amd/yc/acp6x-pdm-dma.c b/sound/soc/amd/yc/acp6x-pdm-dma.c index dc7c7ea5ea1a..e604f4ea524f 100644 --- a/sound/soc/amd/yc/acp6x-pdm-dma.c +++ b/sound/soc/amd/yc/acp6x-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 "acp6x.h" @@ -373,13 +374,69 @@ 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, }, }; |