drm/exynos: rotator: fix system and runtime pm integration

Use generic helpers instead of open-coding usage of runtime pm for system
sleep pm, which was potentially broken for some corner cases.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

1 files changed, 2 insertions, 24 deletions

diff --git a/drivers/gpu/drm/exynos/exynos_drm_rotator.c b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
index 404367a430b5..6591e406084c 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_rotator.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_rotator.c
@@ -794,29 +794,6 @@ static int rotator_clk_crtl(struct rot_context *rot, bool enable)
         return 0;
 }
 
-
-#ifdef CONFIG_PM_SLEEP
-static int rotator_suspend(struct device *dev)
-{
-        struct rot_context *rot = dev_get_drvdata(dev);
-
-        if (pm_runtime_suspended(dev))
-                return 0;
-
-        return rotator_clk_crtl(rot, false);
-}
-
-static int rotator_resume(struct device *dev)
-{
-        struct rot_context *rot = dev_get_drvdata(dev);
-
-        if (!pm_runtime_suspended(dev))
-                return rotator_clk_crtl(rot, true);
-
-        return 0;
-}
-#endif
-
 static int rotator_runtime_suspend(struct device *dev)
 {
         struct rot_context *rot = dev_get_drvdata(dev);
@@ -833,7 +810,8 @@ static int rotator_runtime_resume(struct device *dev)
 #endif
 
 static const struct dev_pm_ops rotator_pm_ops = {
-        SET_SYSTEM_SLEEP_PM_OPS(rotator_suspend, rotator_resume)
+        SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
+                                pm_runtime_force_resume)
         SET_RUNTIME_PM_OPS(rotator_runtime_suspend, rotator_runtime_resume,
                                                                         NULL)
 };