linux-kernel - [PATCH 2/2] drm/vc4: Provides DRM_FBDEV_DMA_DRIVER_OPS also for vc5_drm

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Message-Id: <20241003092826.1942901-3-m.szyprowski@samsung.com>
Date: Thu,  3 Oct 2024 11:28:26 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Raspberry Pi Kernel Maintenance <kernel-list@...pberrypi.com>,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: Marek Szyprowski <m.szyprowski@...sung.com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>, Dave Stevenson
	<dave.stevenson@...pberrypi.com>, Javier Martinez Canillas
	<javierm@...hat.com>
Subject: [PATCH 2/2] drm/vc4: Provides DRM_FBDEV_DMA_DRIVER_OPS also for
 vc5_drm_driver

The VC4 DRM driver contains 2 'struct drm_driver' objects, used for
different hardware versions. Commit 45903624e9fc ("drm/vc4: Run DRM
default client setup") added the DRM_FBDEV_DMA_DRIVER_OPS entry only to
the first one, causing the kernel oops if the second 'drm_driver' object
is used. Fix this.

Fixes: 45903624e9fc ("drm/vc4: Run DRM default client setup")
Signed-off-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
 drivers/gpu/drm/vc4/vc4_drv.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/vc4/vc4_drv.c b/drivers/gpu/drm/vc4/vc4_drv.c
index 13a1ecddbca3..a238f76a6073 100644
--- a/drivers/gpu/drm/vc4/vc4_drv.c
+++ b/drivers/gpu/drm/vc4/vc4_drv.c
@@ -238,6 +238,7 @@ const struct drm_driver vc5_drm_driver = {
 #endif
 
 	DRM_GEM_DMA_DRIVER_OPS_WITH_DUMB_CREATE(vc5_dumb_create),
+	DRM_FBDEV_DMA_DRIVER_OPS,
 
 	.fops = &vc4_drm_fops,
 
-- 
2.34.1