diff --git a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c index e8d9337a66d8..f2a9c1bb32c0 100644 --- a/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c +++ b/drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_drv.c @@ -290,6 +290,11 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) if (!fsl_dev) return -ENOMEM; + id = of_match_node(fsl_dcu_of_match, pdev->dev.of_node); + if (!id) + return -ENODEV; + fsl_dev->soc = id->data; + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { dev_err(dev, "could not get memory IO resource\n"); @@ -308,24 +313,6 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) return -ENXIO; } - fsl_dev->clk = devm_clk_get(dev, "dcu"); - if (IS_ERR(fsl_dev->clk)) { - ret = PTR_ERR(fsl_dev->clk); - dev_err(dev, "failed to get dcu clock\n"); - return ret; - } - ret = clk_prepare(fsl_dev->clk); - if (ret < 0) { - dev_err(dev, "failed to prepare dcu clk\n"); - return ret; - } - ret = clk_enable(fsl_dev->clk); - if (ret < 0) { - dev_err(dev, "failed to enable dcu clk\n"); - clk_unprepare(fsl_dev->clk); - return ret; - } - fsl_dev->regmap = devm_regmap_init_mmio(dev, base, &fsl_dcu_regmap_config); if (IS_ERR(fsl_dev->regmap)) { @@ -333,14 +320,22 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) return PTR_ERR(fsl_dev->regmap); } - id = of_match_node(fsl_dcu_of_match, pdev->dev.of_node); - if (!id) - return -ENODEV; - fsl_dev->soc = id->data; + fsl_dev->clk = devm_clk_get(dev, "dcu"); + if (IS_ERR(fsl_dev->clk)) { + dev_err(dev, "failed to get dcu clock\n"); + return PTR_ERR(fsl_dev->clk); + } + ret = clk_prepare_enable(fsl_dev->clk); + if (ret < 0) { + dev_err(dev, "failed to enable dcu clk\n"); + return ret; + } drm = drm_dev_alloc(driver, dev); - if (!drm) - return -ENOMEM; + if (!drm) { + ret = -ENOMEM; + goto disable_clk; + } fsl_dev->dev = dev; fsl_dev->drm = drm; @@ -360,6 +355,8 @@ static int fsl_dcu_drm_probe(struct platform_device *pdev) unref: drm_dev_unref(drm); +disable_clk: + clk_disable_unprepare(fsl_dev->clk); return ret; } @@ -367,6 +364,7 @@ static int fsl_dcu_drm_remove(struct platform_device *pdev) { struct fsl_dcu_drm_device *fsl_dev = platform_get_drvdata(pdev); + clk_disable_unprepare(fsl_dev->clk); drm_put_dev(fsl_dev->drm); return 0;