Commit e8639d0c authored by Ed Blake's avatar Ed Blake Committed by Mark Brown
Browse files

ASoC: img-spdif-out: Add control of sys clock to runtime PM 



Disable sys clock as well as ref clock when runtime suspended.

Signed-off-by: default avatarEd Blake <ed.blake@sondrel.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 634a09d0

sound/soc/img/img-spdif-out.c

+17 −14
Original line number Diff line number Diff line
@@ -57,6 +57,7 @@ static int img_spdif_out_runtime_suspend(struct device *dev) 
	struct img_spdif_out *spdif = dev_get_drvdata(dev);



	clk_disable_unprepare(spdif->clk_ref);

	clk_disable_unprepare(spdif->clk_sys);



	return 0;

}
@@ -66,9 +67,16 @@ static int img_spdif_out_runtime_resume(struct device *dev) 
	struct img_spdif_out *spdif = dev_get_drvdata(dev);

	int ret;



	ret = clk_prepare_enable(spdif->clk_sys);

	if (ret) {

		dev_err(dev, "clk_enable failed: %d\n", ret);

		return ret;

	}



	ret = clk_prepare_enable(spdif->clk_ref);

	if (ret) {

		dev_err(dev, "clk_enable failed: %d\n", ret);

		clk_disable_unprepare(spdif->clk_sys);

		return ret;

	}
@@ -358,21 +366,21 @@ static int img_spdif_out_probe(struct platform_device *pdev) 
		return PTR_ERR(spdif->clk_ref);

	}



	ret = clk_prepare_enable(spdif->clk_sys);

	if (ret)

		return ret;



	img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,

				IMG_SPDIF_OUT_CTL);



	img_spdif_out_reset(spdif);



	pm_runtime_enable(&pdev->dev);

	if (!pm_runtime_enabled(&pdev->dev)) {

		ret = img_spdif_out_runtime_resume(&pdev->dev);

		if (ret)

			goto err_pm_disable;

	}

	ret = pm_runtime_get_sync(&pdev->dev);

	if (ret < 0)

		goto err_suspend;



	img_spdif_out_writel(spdif, IMG_SPDIF_OUT_CTL_FS_MASK,

			     IMG_SPDIF_OUT_CTL);



	img_spdif_out_reset(spdif);

	pm_runtime_put(&pdev->dev);



	spin_lock_init(&spdif->lock);
@@ -399,21 +407,16 @@ static int img_spdif_out_probe(struct platform_device *pdev) 
		img_spdif_out_runtime_suspend(&pdev->dev);

err_pm_disable:

	pm_runtime_disable(&pdev->dev);

	clk_disable_unprepare(spdif->clk_sys);



	return ret;

}



static int img_spdif_out_dev_remove(struct platform_device *pdev)

{

	struct img_spdif_out *spdif = platform_get_drvdata(pdev);



	pm_runtime_disable(&pdev->dev);

	if (!pm_runtime_status_suspended(&pdev->dev))

		img_spdif_out_runtime_suspend(&pdev->dev);



	clk_disable_unprepare(spdif->clk_sys);



	return 0;

}