[PATCH v3 02/12] drm/edid: fix reduced blanking support check

[Jani Nikula]

The reduced blanking bit is valid only for CVT, indicated by display
range limits flags 0x04.

Cc: Ville Syrjälä <ville.syrj...@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
 drivers/gpu/drm/drm_edid.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 1b552fe54f38..13d05062d68c 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -2408,7 +2408,7 @@ is_rb(struct detailed_timing *t, void *data)
        if (!is_display_descriptor(r, EDID_DETAIL_MONITOR_RANGE))
                return;
 
-       if (r[15] & 0x10)
+       if (r[10] == DRM_EDID_CVT_SUPPORT_FLAG && r[15] & 0x10)
                *(bool *)data = true;
 }
 
-- 
2.30.2