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| author | Vijendar Mukunda <Vijendar.Mukunda@amd.com> | 2018-11-12 11:05:00 +0530 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-11-13 11:44:10 -0800 |
| commit | 56e4dd8f68019f50a885be9122981f1899cd89ed (patch) | |
| tree | 4d2cd2af90e64148e4fab24ef8c7db4aeaa2b0a9 /sound | |
| parent | 67aa06aef5836d2ceb1b9280ca2cee9cc4b1e004 (diff) | |
| download | linux-56e4dd8f68019f50a885be9122981f1899cd89ed.tar.gz linux-56e4dd8f68019f50a885be9122981f1899cd89ed.tar.bz2 linux-56e4dd8f68019f50a885be9122981f1899cd89ed.zip | |
ASoC: amd: add acp3x runtime pm ops
Added runtime PM operations for ACP3x PCM platform device.
Signed-off-by: Maruthi Bayyavarapu <maruthi.bayyavarapu@amd.com>
Tested-by: Ravulapati Vishnu vardhan Rao <Vishnuvardhanrao.Ravulapati@amd.com>
Signed-off-by: Vijendar Mukunda <vijendar.mukunda@amd.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/amd/raven/acp3x-pcm-dma.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/sound/soc/amd/raven/acp3x-pcm-dma.c b/sound/soc/amd/raven/acp3x-pcm-dma.c index 15a5f3b4db71..710c5c5ae625 100644 --- a/sound/soc/amd/raven/acp3x-pcm-dma.c +++ b/sound/soc/amd/raven/acp3x-pcm-dma.c @@ -17,6 +17,7 @@ #include <linux/module.h> #include <linux/err.h> #include <linux/io.h> +#include <linux/pm_runtime.h> #include <sound/pcm.h> #include <sound/pcm_params.h> #include <sound/soc.h> @@ -660,6 +661,9 @@ static int acp3x_audio_probe(struct platform_device *pdev) goto dev_err; } + pm_runtime_set_autosuspend_delay(&pdev->dev, 10000); + pm_runtime_use_autosuspend(&pdev->dev); + pm_runtime_enable(&pdev->dev); return 0; dev_err: status = acp3x_deinit(adata->acp3x_base); @@ -682,14 +686,49 @@ static int acp3x_audio_remove(struct platform_device *pdev) else dev_info(&pdev->dev, "ACP de-initialized\n"); + pm_runtime_disable(&pdev->dev); return 0; } +static int acp3x_pcm_runtime_suspend(struct device *dev) +{ + int status; + struct i2s_dev_data *adata = dev_get_drvdata(dev); + + status = acp3x_deinit(adata->acp3x_base); + if (status) + dev_err(dev, "ACP de-init failed\n"); + else + dev_info(dev, "ACP de-initialized\n"); + + rv_writel(0, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); + + return 0; +} + +static int acp3x_pcm_runtime_resume(struct device *dev) +{ + int status; + struct i2s_dev_data *adata = dev_get_drvdata(dev); + + status = acp3x_init(adata->acp3x_base); + if (status) + return -ENODEV; + rv_writel(1, adata->acp3x_base + mmACP_EXTERNAL_INTR_ENB); + return 0; +} + +static const struct dev_pm_ops acp3x_pm_ops = { + .runtime_suspend = acp3x_pcm_runtime_suspend, + .runtime_resume = acp3x_pcm_runtime_resume, +}; + static struct platform_driver acp3x_dma_driver = { .probe = acp3x_audio_probe, .remove = acp3x_audio_remove, .driver = { .name = "acp3x_rv_i2s", + .pm = &acp3x_pm_ops, }, }; |