950-0503-drm-vc4-Fix-oops-at-boot-with-firmwarekms-on-4.19.patch

From ec551e663ddd1be9140cc23f1eff33b8d270ed60 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Mon, 4 Mar 2019 11:59:34 -0800
Subject: [PATCH] drm/vc4: Fix oops at boot with firmwarekms on 4.19.

Signed-off-by: Eric Anholt <eric@anholt.net>
---
 drivers/gpu/drm/vc4/vc4_kms.c | 3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/vc4/vc4_kms.c
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
@@ -107,6 +107,9 @@ vc4_ctm_commit(struct vc4_dev *vc4, stru
 	struct vc4_ctm_state *ctm_state = to_vc4_ctm_state(vc4->ctm_manager.state);
 	struct drm_color_ctm *ctm = ctm_state->ctm;
 
+	if (vc4->firmware_kms)
+		return;
+
 	if (ctm_state->fifo) {
 		HVS_WRITE(SCALER_OLEDCOEF2,
 			  VC4_SET_FIELD(vc4_ctm_s31_32_to_s0_9(ctm->matrix[0]),