linux-stable.git/include/linux/fb.h, branch v6.9.2

Merge tag 'fbdev-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

2024-03-22T17:09:08+00:00

Pull fbdev updates from Helge Deller:

 - Allow console fonts up to 64x128 pixels (Samuel Thibault)

 - Prevent division-by-zero in fb monitor code (Roman Smirnov)

 - Drop Renesas ARM platforms from Mobile LCDC framebuffer driver (Geert
   Uytterhoeven)

 - Various code cleanups in viafb, uveafb and mb862xxfb drivers by
   Aleksandr Burakov, Li Zhijian and Michael Ellerman

* tag 'fbdev-for-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
  fbdev: panel-tpo-td043mtea1: Convert sprintf() to sysfs_emit()
  fbmon: prevent division by zero in fb_videomode_from_videomode()
  fbcon: Increase maximum font width x height to 64 x 128
  fbdev: viafb: fix typo in hw_bitblt_1 and hw_bitblt_2
  fbdev: mb862xxfb: Fix defined but not used error
  fbdev: uvesafb: Convert sprintf/snprintf to sysfs_emit
  fbdev: Restrict FB_SH_MOBILE_LCDC to SuperH

fbcon: Increase maximum font width x height to 64 x 128

2024-03-16T07:29:48+00:00

By using bitmaps we actually support whatever size we would want, but
the console currently limits fonts to 64x128 (which gives 60x16 text on
4k screens), so we don't need more for now, and we can easily increase
later.

Signed-off-by: Samuel Thibault 
Signed-off-by: Helge Deller

fbdev: Clean up include statements in header file

2024-02-28T08:59:32+00:00

Include mutex.h, printk.h and types.h, remove several unnecessary
include statements, and sort the list alphabetically.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-10-tzimmermann@suse.de

fbdev: Clean up forward declarations in header file

2024-02-28T08:59:31+00:00

Add forward declarations for struct i2c_adapter and struct module, and
sort the list alphabetically.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-9-tzimmermann@suse.de

fbdev: Do not include in header

2024-02-28T08:59:30+00:00

Forward declare struct page and remove the include statement.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-8-tzimmermann@suse.de

fbdev: Do not include in header

2024-02-28T08:59:29+00:00

Forward declare struct notifier_block and remove the include
statement.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-7-tzimmermann@suse.de

fbdev: Do not include in header

2024-02-28T08:59:28+00:00

Forward declare struct inode and remove the include statement.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-6-tzimmermann@suse.de

fbdev: Do not include in header

2024-02-28T08:59:27+00:00

Forward declare struct backlight_device and remove the include
statement.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Jani Nikula 
Acked-by: Helge Deller 
Link: https://patchwork.freedesktop.org/patch/msgid/20240219093941.3684-5-tzimmermann@suse.de

video/nomodeset: Select nomodeset= parameter with CONFIG_VIDEO

2024-01-23T09:11:38+00:00

Enable support for nomodeset= parameter via CONFIG_VIDEO. Both,
DRM and fbdev, already select this option. Remove the existing
option CONFIG_VIDEO_NOMODESET. Simplifies the Kconfig rules.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20240118090721.7995-4-tzimmermann@suse.de

fbdev: Remove default file-I/O implementations

2023-11-29T11:20:53+00:00

Drop the default implementations for file read, write and mmap
operations. Each fbdev driver must now provide an implementation
and select any necessary helpers. If no implementation has been
set, fbdev returns an errno code to user space. The code is the
same as if the operation had not been set in the file_operations
struct.

This change makes the fbdev helpers for I/O memory optional. Most
systems only use system-memory framebuffers via DRM's fbdev emulation.

v2:
	* warn once if I/O callbacks are missing (Javier)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-33-tzimmermann@suse.de