openwrt/target/linux/brcm2708/patches-4.19/950-0305-drm-vc4-Programming-the-CTM-is-conditional-on-runnin.patch

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From bb8e85deab20dd38c26d354452e1ac42add37530 Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Tue, 19 Feb 2019 15:18:25 +0000
Subject: [PATCH] drm: vc4: Programming the CTM is conditional on
running full KMS
vc4_ctm_commit writes to HVS registers, so this is only applicable
when in full KMS mode, not in firmware KMS mode. Add this conditional.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
---
drivers/gpu/drm/vc4/vc4_kms.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -147,7 +147,8 @@ vc4_atomic_complete_commit(struct drm_at
drm_atomic_helper_commit_modeset_disables(dev, state);
- vc4_ctm_commit(vc4, state);
+ if (!vc4->firmware_kms)
+ vc4_ctm_commit(vc4, state);
drm_atomic_helper_commit_planes(dev, state, 0);