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drm/rockchip: hdmi: disable RK3368 2160P RGB444/YCbCr444/YCbCr422 mode

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Change-Id: I573db9cd41031f45cac359fc9314491ebd1ba8fc
Signed-off-by: Zheng Yang <zhengyang@rock-chips.com>
This commit is contained in:
Zheng Yang 2017-08-10 16:46:56 +08:00 committed by Tao Huang
parent ae6fbdeed9
commit 821bf1091c
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
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@ -353,6 +353,7 @@ dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
struct drm_device *dev = connector->dev;
struct rockchip_drm_private *priv = dev->dev_private;
struct drm_crtc *crtc;
struct rockchip_hdmi *hdmi;
/*
* Pixel clocks we support are always < 2GHz and so fit in an
@ -385,6 +386,11 @@ dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
if (!encoder || !encoder->possible_crtcs)
return MODE_BAD;
hdmi = to_rockchip_hdmi(encoder);
if (hdmi->max_tmdsclk <= 340000 && mode->clock > 340000 &&
!drm_mode_is_420(&connector->display_info, mode))
return MODE_BAD;
/*
* ensure all drm display mode can work, if someone want support more
* resolutions, please limit the possible_crtc, only connect to