This is a note to let you know that I've just added the patch titled
drm/fbdev-dma: Fix documented default preferred_bpp value
to the 6.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-fbdev-dma-fix-documented-default-preferred_bpp-v.patch
and it can be found in the queue-6.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9874576143edd04da17ddc4c1e193e5a747512f6
Author: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Date: Thu Jul 6 17:30:31 2023 +0200
drm/fbdev-dma: Fix documented default preferred_bpp value
[ Upstream commit 15008052b34efaa86c1d56190ac73c4bf8c462f9 ]
As of commit 6c80a93be62d398e ("drm/fb-helper: Initialize fb-helper's
preferred BPP in prepare function"), the preferred_bpp parameter of
drm_fb_helper_prepare() defaults to 32 instead of
drm_mode_config.preferred_depth. Hence this also applies to
drm_fbdev_dma_setup(), which just passes its own preferred_bpp
parameter.
Fixes: b79fe9abd58bab73 ("drm/fbdev-dma: Implement fbdev emulation for GEM DMA helpers")
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Reviewed-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/91f093ffe436a9f94d58fb2bfbc1407f1ebe8bb0.1688656591.git.geert+renesas@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/gpu/drm/drm_fbdev_dma.c b/drivers/gpu/drm/drm_fbdev_dma.c
index 728deffcc0d92..e85cdf69cd6c4 100644
--- a/drivers/gpu/drm/drm_fbdev_dma.c
+++ b/drivers/gpu/drm/drm_fbdev_dma.c
@@ -218,7 +218,7 @@ static const struct drm_client_funcs drm_fbdev_dma_client_funcs = {
* drm_fbdev_dma_setup() - Setup fbdev emulation for GEM DMA helpers
* @dev: DRM device
* @preferred_bpp: Preferred bits per pixel for the device.
- * @dev->mode_config.preferred_depth is used if this is zero.
+ * 32 is used if this is zero.
*
* This function sets up fbdev emulation for GEM DMA drivers that support
* dumb buffers with a virtual address and that can be mmap'ed.
