[PATCH v4 5/6] drm/rockchip: vop: restore vop registers when resume

The registers will be reset to default values when whole power domain off, so restore registers from regsbak.

Signed-off-by: Mark Yao mark.yao@rock-chips.com --- Changes in v4: None

drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 1 + 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 4a2923b..16b7d98 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -496,6 +496,7 @@ static void vop_enable(struct drm_crtc *crtc) goto err_disable_aclk; }

+ memcpy(vop->regs, vop->regsbak, vop->len); /* * At here, vop clock & iommu is enable, R/W vop regs would be safe. */