From: ykzhao <yakui.zhao@intel.com>
Date: Thu, 3 Sep 2009 06:30:04 +0000 (+0800)
Subject: drm/kms/i915: Add the default mode for CRT output without EDID
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=50fe4cfdc759fb3c0cffc3b90281efb139631fb7;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

drm/kms/i915: Add the default mode for CRT output without EDID

Add the default mode for every output device when there
is no mode for it.

Signed-off-by: Zhao Yakui <yakui.zhao@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index e7e6c25b560c..6f4b4446fcdf 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -109,8 +109,11 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
 	}
 
 	count = (*connector_funcs->get_modes)(connector);
-	if (!count)
-		return 0;
+	if (!count) {
+		count = drm_add_modes_noedid(connector, 800, 600);
+		if (!count)
+			return 0;
+	}
 
 	drm_mode_connector_list_update(connector);