From e63aaec6f830932e532777d186a68f16b899fd0a Mon Sep 17 00:00:00 2001
From: Mark yao <mark.yao@rock-chips.com>
Date: Wed, 26 Jul 2017 14:19:39 +0800
Subject: [PATCH 70/86] drm/rockchip: vop: rk3328: fix overlay abnormal

Git-commit: 9dd2aca46a13cc7177625f0dc3aaf5b7ebc6fe74
Patch-mainline: v4.14-rc1
References: fate#323912

It's a hardware bug, all window's overlay channel reset
value is same, hardware overlay would be die.

so we must initial difference id for each overlay channel.

The Channel register is supported on all vop will full design.
Following is the details for this register
VOP_WIN0_CTRL2
  bit[7:4] win_rid_win0_cbr
       axi read id of win0 cbr channel
  bit[3:0] win_rid_win0_yrgb
       axi read id of win0 yrgb channel

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
Reviewed-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/1501049980-6239-1-git-send-email-mark.yao@rock-chips.com
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@suse.com>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop.c |    2 ++
 drivers/gpu/drm/rockchip/rockchip_drm_vop.h |    1 +
 drivers/gpu/drm/rockchip/rockchip_vop_reg.c |    1 +
 3 files changed, 4 insertions(+)

--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -1456,7 +1456,9 @@ static int vop_initial(struct vop *vop)
 
 	for (i = 0; i < vop_data->win_size; i++) {
 		const struct vop_win_data *win = &vop_data->win[i];
+		int channel = i * 2 + 1;
 
+		VOP_WIN_SET(vop, win, channel, (channel + 1) << 4 | channel);
 		VOP_WIN_SET(vop, win, enable, 0);
 		VOP_WIN_SET(vop, win, gate, 1);
 	}
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h
@@ -141,6 +141,7 @@ struct vop_win_phy {
 
 	struct vop_reg dst_alpha_ctl;
 	struct vop_reg src_alpha_ctl;
+	struct vop_reg channel;
 };
 
 struct vop_win_data {
--- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
+++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c
@@ -197,6 +197,7 @@ static const struct vop_win_phy rk3288_w
 	.uv_vir = VOP_REG(RK3288_WIN0_VIR, 0x3fff, 16),
 	.src_alpha_ctl = VOP_REG(RK3288_WIN0_SRC_ALPHA_CTRL, 0xff, 0),
 	.dst_alpha_ctl = VOP_REG(RK3288_WIN0_DST_ALPHA_CTRL, 0xff, 0),
+	.channel = VOP_REG(RK3288_WIN0_CTRL2, 0xff, 0),
 };
 
 static const struct vop_win_phy rk3288_win23_data = {