Writeback connectors aren't much use to the fbdev helpers, as they won't
show anything to the user. Skip them when looking for candidate output
configurations.
Signed-off-by: Brian Starkey <brian.star...@arm.com>
---
drivers/gpu/drm/drm_fb_helper.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 03414bd..dedf6e7 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -2016,6 +2016,10 @@ static int drm_pick_crtcs(struct drm_fb_helper
*fb_helper,
if (modes[n] == NULL)
return best_score;
+ /* Writeback connectors aren't much use for fbdev */
+ if (connector->connector_type == DRM_MODE_CONNECTOR_WRITEBACK)
+ return best_score;
+
crtcs = kzalloc(fb_helper->connector_count *
sizeof(struct drm_fb_helper_crtc *), GFP_KERNEL);
if (!crtcs)
--
1.7.9.5
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