[PATCH -next 1/2] drm/rockchip: vop: fix PM usage counter unbalance in vop ops

[Zhang Qilong]

pm_runtime_get_sync will increment pm usage counter even it failed.
Forgetting to putting operation will result in reference leak here.
We fix it by replacing it with the newest pm_runtime_resume_and_get
to keep usage counter balanced.

Fixes:5e570373c015b ("drm/rockchip: vop: Enable pm domain before vop_initial")
Fixes:604be85547ce4 ("drm/rockchip: Add VOP2 driver")
Signed-off-by: Zhang Qilong <zhangqilo...@huawei.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c 
b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index c356de5dd220..fa1f4ee6d195 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -602,7 +602,7 @@ static int vop_enable(struct drm_crtc *crtc, struct 
drm_crtc_state *old_state)
        struct vop *vop = to_vop(crtc);
        int ret, i;
 
-       ret = pm_runtime_get_sync(vop->dev);
+       ret = pm_runtime_resume_and_get(vop->dev);
        if (ret < 0) {
                DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret);
                return ret;
@@ -1983,7 +1983,7 @@ static int vop_initial(struct vop *vop)
                return PTR_ERR(vop->dclk);
        }
 
-       ret = pm_runtime_get_sync(vop->dev);
+       ret = pm_runtime_resume_and_get(vop->dev);
        if (ret < 0) {
                DRM_DEV_ERROR(vop->dev, "failed to get pm runtime: %d\n", ret);
                return ret;
-- 
2.25.1