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 --- 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(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c index 92d098b..e4b3388 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c @@ -1452,7 +1452,9 @@ 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); } diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.h b/drivers/gpu/drm/rockchip/rockchip_drm_vop.h index 43d08c8..af1091f 100644 --- 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 { diff --git a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c index 99f8ba4..cc8d408 100644 --- a/drivers/gpu/drm/rockchip/rockchip_vop_reg.c +++ b/drivers/gpu/drm/rockchip/rockchip_vop_reg.c @@ -196,6 +196,7 @@ .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 = {