drm/rockchip: dw_hdmi: add power domain control

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / rockchip / dw_hdmi-rockchip.c

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 4cbefe86b6ef9be93ac2f5ab48ab61884053d883..41789871bf4a0e4e94b5c4cb54806d763e1e8fcc 100644 (file)
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -12,6 +12,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
+#include <linux/pm_runtime.h>
 
 #include <drm/drm_of.h>
 #include <drm/drmP.h>
@@ -454,12 +455,16 @@ static const struct component_ops dw_hdmi_rockchip_ops = {
 
 static int dw_hdmi_rockchip_probe(struct platform_device *pdev)
 {
+       pm_runtime_enable(&pdev->dev);
+       pm_runtime_get_sync(&pdev->dev);
+
        return component_add(&pdev->dev, &dw_hdmi_rockchip_ops);
 }
 
 static int dw_hdmi_rockchip_remove(struct platform_device *pdev)
 {
        component_del(&pdev->dev, &dw_hdmi_rockchip_ops);
+       pm_runtime_disable(&pdev->dev);
 
        return 0;
 }
@@ -467,12 +472,14 @@ static int dw_hdmi_rockchip_remove(struct platform_device *pdev)
 static int dw_hdmi_rockchip_suspend(struct device *dev)
 {
        dw_hdmi_suspend(dev);
+       pm_runtime_put_sync(dev);
 
        return 0;
 }
 
 static int dw_hdmi_rockchip_resume(struct device *dev)
 {
+       pm_runtime_get_sync(dev);
        dw_hdmi_resume(dev);
 
        return  0;