From: Mark Yao <mark.yao@rock-chips.com>
Date: Mon, 20 Jul 2015 08:25:20 +0000 (+0800)
Subject: drm/rockchip: vop: restore vop registers when resume
X-Git-Tag: v4.3-rc1~75^2~2^2~1
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=77faa1619a5ae9ed600b0836bc1eec57bad1895b;p=karo-tx-linux.git

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>
---

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 4a2923b0ee31..16b7d98362b0 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.
 	 */