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From 2c987545a88507acdd8a572a3bd23a4ca0124d14 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Thu, 13 Apr 2023 17:41:11 +0100
Subject: [PATCH] drm/vc4: Treat zero sized destination as full screen
Kodi video planes come through with all zeros for fullscreen
Without this check, we WARN when writing width-1, height-1
to destination dlist
Signed-off-by: Dom Cobley <popcornmix@gmail.com>
---
drivers/gpu/drm/vc4/vc4_plane.c | 5 +++++
1 file changed, 5 insertions(+)
--- a/drivers/gpu/drm/vc4/vc4_plane.c
+++ b/drivers/gpu/drm/vc4/vc4_plane.c
@@ -484,6 +484,11 @@ static int vc4_plane_setup_clipping_and_
vc4_state->crtc_w = state->dst.x2 - state->dst.x1;
vc4_state->crtc_h = state->dst.y2 - state->dst.y1;
+ if (!vc4_state->crtc_w)
+ vc4_state->crtc_w = state->crtc->mode.hdisplay;
+ if (!vc4_state->crtc_h)
+ vc4_state->crtc_h = state->crtc->mode.vdisplay;
+
ret = vc4_plane_margins_adj(state);
if (ret)
return ret;
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