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openmptcprouter/6.6/target/linux/bcm27xx/patches-6.6/0576-drm-vc4-Treat-zero-sized-destination-as-full-screen.patch
Ycarus (Yannick Chabanois) 12de1d2995 Add RPI kernel 6.6 support
2024-04-05 20:55:33 +02:00

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From d1173139185a0365bd61ceca55621d3c0a193f31 Mon Sep 17 00:00:00 2001
From: Dom Cobley <popcornmix@gmail.com>
Date: Thu, 13 Apr 2023 17:41:11 +0100
Subject: [PATCH 0576/1002] 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(+)
diff --git a/drivers/gpu/drm/vc4/vc4_plane.c b/drivers/gpu/drm/vc4/vc4_plane.c
index d99e2c56bf41..0d04bcf89ff5 100644
--- 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_scaling(struct drm_plane_state *state)
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;
--
2.44.0