From: Andy Yan <[email protected]>

Filter the mode that can't output by the crtc.

Signed-off-by: Andy Yan <[email protected]>
---
 drivers/gpu/drm/rockchip/rockchip_drm_vop2.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c 
b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
index 498df0ce4680..74fba29bfff3 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop2.c
@@ -1439,6 +1439,17 @@ static void vop2_crtc_disable_vblank(struct drm_crtc 
*crtc)
        vop2_crtc_disable_irq(vp, VP_INT_FS_FIELD);
 }
 
+static enum drm_mode_status vop2_crtc_mode_valid(struct drm_crtc *crtc,
+                                                const struct drm_display_mode 
*mode)
+{
+       struct vop2_video_port *vp = to_vop2_video_port(crtc);
+
+       if (mode->hdisplay > vp->data->max_output.width)
+               return MODE_BAD_HVALUE;
+
+       return MODE_OK;
+}
+
 static bool vop2_crtc_mode_fixup(struct drm_crtc *crtc,
                                 const struct drm_display_mode *mode,
                                 struct drm_display_mode *adj_mode)
@@ -1884,6 +1895,7 @@ static void vop2_crtc_atomic_flush(struct drm_crtc *crtc,
 
 static const struct drm_crtc_helper_funcs vop2_crtc_helper_funcs = {
        .mode_fixup = vop2_crtc_mode_fixup,
+       .mode_valid = vop2_crtc_mode_valid,
        .atomic_check = vop2_crtc_atomic_check,
        .atomic_begin = vop2_crtc_atomic_begin,
        .atomic_flush = vop2_crtc_atomic_flush,
-- 
2.43.0

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