Commit 17a794d7 authored Aug 26, 2016 by Chris Zhong Committed by Mark Yao Feb 05, 2017

drm/rockchip: vop: make vop register setting take effect



The setting of vop registers need a reg_done writing to take effect.
In vop_enable the vop return to work by by restoring registers, but the
registers do not take effect immediately, it should a vop_cfg_done
after it. The same thing is needed by windows_disabled in
vop_crtc_disable.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>

parent 99743ae4

drivers/gpu/drm/rockchip/rockchip_drm_vop.c

+4 −0

Original line number	Diff line number	Diff line
		@@ -531,6 +531,8 @@ static int vop_enable(struct drm_crtc *crtc)
		}

		memcpy(vop->regs, vop->regsbak, vop->len);
		vop_cfg_done(vop);

		/*
		* At here, vop clock & iommu is enable, R/W vop regs would be safe.
		*/
		@@ -582,6 +584,8 @@ static void vop_crtc_disable(struct drm_crtc *crtc)
		spin_unlock(&vop->reg_lock);
		}

		vop_cfg_done(vop);

		drm_crtc_vblank_off(crtc);

		/*