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drm/bridge: analogix_dp: add default mode when get edid failed

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This will used when product use edp2hdmi or edp2vga output.

Signed-off-by: Sandy Huang <hjc@rock-chips.com>
Change-Id: Idf02a0d1e1bcef579fb3d6117a5e89744bdaac8a
This commit is contained in:
Sandy Huang
2021-06-16 20:17:02 +08:00
parent 8eed8785c4
commit a5952d0f07
1 changed files with 7 additions and 1 deletions
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8
drivers/gpu/drm/rockchip/analogix_dp-rockchip.c
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@@ -223,6 +223,7 @@ static int rockchip_dp_get_modes(struct analogix_dp_plat_data *plat_data,
struct drm_display_info *di = &connector->display_info;
/* VOP couldn't output YUV video format for eDP rightly */
u32 mask = DRM_COLOR_FORMAT_YCRCB444 | DRM_COLOR_FORMAT_YCRCB422;
int ret = 0;
if ((di->color_formats & mask)) {
DRM_DEBUG_KMS("Swapping display color format from YUV to RGB\n");
@@ -231,7 +232,12 @@ static int rockchip_dp_get_modes(struct analogix_dp_plat_data *plat_data,
di->bpc = 8;
}
return 0;
if (list_empty(&connector->probed_modes) && !plat_data->panel) {
ret = rockchip_drm_add_modes_noedid(connector);
DRM_ERROR("analogix dp get edid mode failed, use default mode\n");
}
return ret;
}
static int rockchip_dp_bridge_attach(struct analogix_dp_plat_data *plat_data,