drm/rockchip: force 8bit mode if vop not support 10bit output

[firefly-linux-kernel-4.4.55.git] / drivers / gpu / drm / rockchip / rockchip_drm_vop.c

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index b6eb2b0163acbc36adad755a682ada0356325018..58fdb6d98629804312d4990b2376da622f64dad0 100644 (file)
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -990,6 +990,7 @@ static bool vop_crtc_mode_fixup(struct drm_crtc *crtc,
 static void vop_crtc_enable(struct drm_crtc *crtc)
 {
        struct vop *vop = to_vop(crtc);
+       const struct vop_data *vop_data = vop->data;
        struct rockchip_crtc_state *s = to_rockchip_crtc_state(crtc->state);
        struct drm_display_mode *adjusted_mode = &crtc->state->adjusted_mode;
        u16 hsync_len = adjusted_mode->hsync_end - adjusted_mode->hsync_start;
@@ -1065,6 +1066,11 @@ static void vop_crtc_enable(struct drm_crtc *crtc)
        default:
                DRM_ERROR("unsupport connector_type[%d]\n", s->output_type);
        }
+
+       if (s->output_mode == ROCKCHIP_OUT_MODE_AAAA &&
+           !(vop_data->feature & VOP_FEATURE_OUTPUT_10BIT))
+               s->output_mode = ROCKCHIP_OUT_MODE_P888;
+
        VOP_CTRL_SET(vop, out_mode, s->output_mode);
 
        VOP_CTRL_SET(vop, htotal_pw, (htotal << 16) | hsync_len);