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 at samsung.com>
---
 drivers/gpu/drm/exynos/exynos_drm_rotator.c | 26 ++------------------------
 1 file 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)
 };
-- 
1.9.1

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