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Commit ff09b41f authored by Stefan Agner's avatar Stefan Agner
Browse files

drm/fsl-dcu: use clk helpers 



Use clk_prepare_enable and clk_disable_unprepare helpers. This also
fixes a sequence issue in the enable path which lead to a warning
on resume.

Signed-off-by: default avatarStefan Agner <stefan@agner.ch>
parent 1277f802

drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c

+2 −9
Original line number Diff line number Diff line
@@ -232,8 +232,7 @@ static int fsl_dcu_drm_pm_suspend(struct device *dev) 
	drm_kms_helper_poll_disable(fsl_dev->drm);

	regcache_cache_only(fsl_dev->regmap, true);

	regcache_mark_dirty(fsl_dev->regmap);

	clk_disable(fsl_dev->clk);

	clk_unprepare(fsl_dev->clk);

	clk_disable_unprepare(fsl_dev->clk);



	return 0;

}
@@ -246,15 +245,9 @@ static int fsl_dcu_drm_pm_resume(struct device *dev) 
	if (!fsl_dev)

		return 0;



	ret = clk_enable(fsl_dev->clk);

	ret = clk_prepare_enable(fsl_dev->clk);

	if (ret < 0) {

		dev_err(dev, "failed to enable dcu clk\n");

		clk_unprepare(fsl_dev->clk);

		return ret;

	}

	ret = clk_prepare(fsl_dev->clk);

	if (ret < 0) {

		dev_err(dev, "failed to prepare dcu clk\n");

		return ret;

	}