linux-toradex.git/drivers/video/fbdev/nvidia, branch v6.13-rc7

Backmerge v6.12-rc6 of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next

2024-11-04T04:25:33+00:00

Backmerge Linus tree for some drm-fixes needed for msm and xe merges.

Signed-off-by: Dave Airlie

fbdev: nvidiafb: fix inconsistent indentation warning

2024-10-15T08:07:32+00:00

Fix the indentation to ensure consistent code style and improve
readability, and to fix this warning:
drivers/video/fbdev/nvidia/nv_hw.c:1512 NVLoadStateExt() warn:
inconsistent indenting

Signed-off-by: SurajSonawane2415 
Signed-off-by: Helge Deller

fbdev: nvidiafb: Use backlight power constants

2024-09-30T14:35:31+00:00

Replace FB_BLANK_ constants with their counterparts from the
backlight subsystem. The values are identical, so there's no
change in functionality or semantics.

Signed-off-by: Thomas Zimmermann 
Cc: Antonino Daplas 
Cc: Helge Deller 
Reviewed-by: Jani Nikula 
Link: https://patchwork.freedesktop.org/patch/msgid/20240731123502.1145082-6-tzimmermann@suse.de

fbdev/nvidiafb: Initialize fb_ops to fbdev I/O-memory helpers

2023-10-19T10:55:53+00:00

Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in I/O address space. Set the read/write,
draw and mmap callbacks to the correct implementation and avoid
implicit defaults. Also select the necessary I/O helpers in Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default implementation to be invoked; hence requiring the I/O
helpers to be built in any case. Setting all callbacks in all
drivers explicitly will allow to make the I/O helpers optional.
This benefits systems that do not use these functions.

No functional changes.

Signed-off-by: Thomas Zimmermann 
Acked-by: Javier Martinez Canillas 
Cc: Antonino Daplas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-25-tzimmermann@suse.de

fbdev: Remove FBINFO_DEFAULT from framebuffer_alloc()'ed structs

2023-07-24T14:50:38+00:00

The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.

Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.

v4:
	* clarify commit message (Geert, Dan)
v2:
	* fix commit message (Miguel)

Signed-off-by: Thomas Zimmermann 
Acked-by: Sam Ravnborg 
Cc: Helge Deller 
Cc: Nicolas Ferre 
Cc: Benjamin Herrenschmidt 
Cc: Ferenc Bakonyi 
Cc: "K. Y. Srinivasan" 
Cc: Haiyang Zhang 
Cc: Wei Liu 
Cc: Dexuan Cui 
Cc: Antonino Daplas 
Cc: Maik Broemme 
Cc: Michael Ellerman 
Cc: Nicholas Piggin 
Cc: Christophe Leroy 
Cc: Kristoffer Ericson 
Cc: Hans de Goede 
Cc: Steve Glendinning 
Cc: Bernie Thompson 
Cc: Florian Tobias Schandinat 
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-6-tzimmermann@suse.de

fbdev/nvidiafb: Use hardware device as backlight parent

2023-06-27T07:58:49+00:00

Use the hardware device in struct fb_info.device as parent of the
backlight device. Aligns the driver with the rest of the codebase
and prepares fbdev for making struct fb_info.dev optional.

Signed-off-by: Thomas Zimmermann 
Cc: Antonino Daplas 
Reviewed-by: Javier Martinez Canillas 
Reviewed-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-20-tzimmermann@suse.de

fbdev/nvidiafb: Reorder backlight and framebuffer init/cleanup

2023-06-27T07:58:49+00:00

The driver's backlight code requires the framebuffer to be
registered. Therefore reorder the init and cleanup calls for
both data structures.

Signed-off-by: Thomas Zimmermann 
Cc: Antonino Daplas 
Reviewed-by: Javier Martinez Canillas 
Reviewed-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-19-tzimmermann@suse.de

fbdev: nvidia: Fix potential divide by zero

2023-03-16T15:18:16+00:00

variable var->pixclock can be set by user. In case it
equals to zero, divide by zero would occur in nvidiafb_set_par.

Similar crashes have happened in other fbdev drivers. There
is no check and modification on var->pixclock along the call
chain to nvidia_check_var and nvidiafb_set_par. We believe it
could also be triggered in driver nvidia from user site.

Signed-off-by: Wei Chen 
Signed-off-by: Helge Deller

nvidiafb: detect the hardware support before removing console.

2023-02-06T22:42:29+00:00

This driver removed the console, but hasn't yet decided if it could
take over the console yet. Instead of doing that, probe the hw for
support and then remove the console afterwards.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216859
Fixes: 145eed48de27 ("fbdev: Remove conflicting devices on PCI bus")
Reported-by: Zeno Davatz 
Tested-by: Zeno Davatz 
Tested-by: Thomas Zimmermann 
Reviewed-by: Thomas Zimmermann 
Signed-off-by: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20230205210751.3842103-1-airlied@gmail.com

fbdev: nvidia: Use backlight helper

2023-01-09T08:57:51+00:00

Instead of retrieving the backlight brightness in struct
backlight_properties manually, and then checking whether the backlight
should be on at all, use backlight_get_brightness() which does all
this and insulates this from future changes.

Signed-off-by: Stephen Kitt 
Cc: Antonino Daplas 
Cc: Helge Deller 
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Daniel Thompson 
Signed-off-by: Helge Deller