ASoC: amd: add acp3x runtime pm ops (56e4dd8f) · Commits · 戴 / test

sound/soc/amd/raven/acp3x-pcm-dma.c

+39 −0

Original line number	Diff line number	Diff line
		@@ -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,
		},
		};

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