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drm/rockchip: analogix_dp: Hack the vop out mode for RK3399 chip

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For RK3999 chip, VOP Big/Lit must configure different display out
mode for eDP controller.
  - VOP Lit should output RGB888
  - Vop Big should output RGB10

Change-Id: I85bac6c25a990404682483c62a731681d19eca29
Signed-off-by: Yakir Yang <ykk@rock-chips.com>
This commit is contained in:
Yakir Yang
2016-04-22 16:29:21 +08:00
parent d7b965329c
commit 30462103cc
1 changed files with 27 additions and 1 deletions
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28
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
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@@ -125,6 +125,10 @@ rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
const struct drm_display_mode *mode,
struct drm_display_mode *adjusted_mode)
{
struct rockchip_dp_device *dp = to_dp(encoder);
int private_flags;
int ret;
/*
* The hardware IC designed that VOP must output the RGB10 video
* format to eDP contoller, and if eDP panel only support RGB8,
@@ -132,7 +136,29 @@ rockchip_dp_drm_encoder_mode_fixup(struct drm_encoder *encoder,
* contoller, that's why we need to hardcode the VOP output mode
* to RGA10 here.
*/
adjusted_mode->private_flags = ROCKCHIP_DSP_MODE(eDP, AAAA);
ret = rockchip_drm_encoder_get_mux_id(dp->dev->of_node, encoder);
if (ret < 0)
return true;
switch (dp->data->chip_type) {
case RK3399_EDP:
/*
* For RK3399, VOP Lit must code the out mode to RGB888,
* VOP Big must code the out mode to RGB10.
*/
if (ret)
private_flags = ROCKCHIP_DSP_MODE(eDP, P888);
else
private_flags = ROCKCHIP_DSP_MODE(eDP, AAAA);
break;
default:
private_flags = ROCKCHIP_DSP_MODE(eDP, AAAA);
break;
}
adjusted_mode->private_flags = private_flags;
return true;
}