openwrt/target/linux/bcm27xx/patches-6.6/950-0027-drm-vc4-hvs-Skip-DebugFS-Registration-for-FKMS.patch

From 8bfb80d65ef2ee6434517f5224d895c8f8eb57e6 Mon Sep 17 00:00:00 2001
From: Maxime Ripard <maxime@cerno.tech>
Date: Mon, 11 Jul 2022 10:38:25 +0200
Subject: [PATCH 0027/1085] drm/vc4: hvs: Skip DebugFS Registration for FKMS

FKMS doesn't have an HVS and it's expected. Return from the debugfs init
function immediately if we're running with fkms.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---
 drivers/gpu/drm/vc4/vc4_hvs.c | 3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/vc4/vc4_hvs.c
+++ b/drivers/gpu/drm/vc4/vc4_hvs.c
@@ -980,6 +980,9 @@ int vc4_hvs_debugfs_init(struct drm_mino
 	struct vc4_dev *vc4 = to_vc4_dev(drm);
 	struct vc4_hvs *hvs = vc4->hvs;
 
+	if (vc4->firmware_kms)
+		return 0;
+
 	if (!vc4->hvs)
 		return -ENODEV;