drm/exynos: prepare FIMD clocks

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / exynos / exynos_drm_fimd.c

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index 4073430e22c37e139187406155064af22bbb7380..15e58f5abe02d4c632df752bddc11810e4034e05 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -949,6 +949,16 @@ static int fimd_probe(struct platform_device *pdev)
                return ret;
        }
 
+       ret = clk_prepare(ctx->bus_clk);
+       if (ret < 0)
+               return ret;
+
+       ret = clk_prepare(ctx->lcd_clk);
+       if  (ret < 0) {
+               clk_unprepare(ctx->bus_clk);
+               return ret;
+       }
+
        ctx->vidcon0 = pdata->vidcon0;
        ctx->vidcon1 = pdata->vidcon1;
        ctx->default_win = pdata->default_win;
@@ -996,8 +1006,8 @@ static int fimd_remove(struct platform_device *pdev)
        if (ctx->suspended)
                goto out;
 
-       clk_disable(ctx->lcd_clk);
-       clk_disable(ctx->bus_clk);
+       clk_unprepare(ctx->lcd_clk);
+       clk_unprepare(ctx->bus_clk);
 
        pm_runtime_set_suspended(dev);
        pm_runtime_put_sync(dev);