linux-stable.git/drivers/video/fbdev/core/fbmem.c, branch linux-6.9.y

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

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/core: Clean up include statements in fbmem.c

2023-09-11T13:12:38+00:00

Remove all unnecessary include statements from fbmem.c. Most of
them were for functionality that has meanwhile been moved into
other files.

Signed-off-by: Thomas Zimmermann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230907085408.9354-8-tzimmermann@suse.de

fbdev/core: Move logo functions into separate source file

2023-09-11T13:12:35+00:00

Move the fbdev function for displaying boot-up logos into their
own file fb_logo.c. Only build fb_logo.c if CONFIG_LOGO has been
selected. No functional changes.

v2:
	* include fb_internal.h (kernel test robot)
	* simplify option-parsing ifdefs
	* build fb_logo.o iff CONFIG_LOGO has been set

Signed-off-by: Thomas Zimmermann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230907085408.9354-6-tzimmermann@suse.de

fbdev/core: Unexport logo helpers

2023-09-11T13:12:33+00:00

The interfaces for the fbdev logo are not used outside of the fbdev
module. Hence declare the fbdev logo functions in the internal header
file and remove their symbol exports. Only build the functions if
CONFIG_LOGO has been selected.

Signed-off-by: Thomas Zimmermann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230907085408.9354-5-tzimmermann@suse.de

fbdev/core: Fix style of code for boot-up logo

2023-09-11T13:12:32+00:00

Fix a number of warnings from checkpatch.pl in this code before
moving it into a separate file. This includes

 * Prefer 'unsigned int' to bare use of 'unsigned'
 * space required after that ',' (ctx:VxV)
 * space prohibited after that open parenthesis '('
 * suspect code indent for conditional statements (16, 32)
 * braces {} are not necessary for single statement blocks

No functional changes.

Signed-off-by: Thomas Zimmermann 
Acked-by: Javier Martinez Canillas 
Link: https://patchwork.freedesktop.org/patch/msgid/20230907085408.9354-4-tzimmermann@suse.de

fbdev/core: Rework fb init code

2023-06-27T07:58:51+00:00

Init the class "graphics" before the rest of fbdev. Later steps, such
as the sysfs code, depend on the class. Also arrange the module's exit
code in reverse order.

Unexport the global variable fb_class, which is only shared internally
within the fbdev core module.

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-38-tzimmermann@suse.de

fbdev/core: Move file-I/O code into separate file

2023-06-27T07:58:51+00:00

Move fbdev's file-I/O code into a separate file and contain it in
init and cleanup helpers. No functional changes.

v3:
	* add missing file fb_chrdev.c
v2:
	* rename source file (Sam)
	* include  (Javier, kernel test robot)

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-37-tzimmermann@suse.de

fbdev/core: Move procfs code to separate file

2023-06-27T07:58:51+00:00

Move fbdev's procfs code into a separate file and contain it in
init and cleanup helpers. For the cleanup, replace remove_proc_entry()
with proc_remove(). It is equivalent in functionality, but looks
more like an inverse of proc_create_seq().

v2:
	* document proc_remove() usage (Sam)
	* revert unrelated removal of for_each_registered_fb()

Signed-off-by: Thomas Zimmermann 
Reviewed-by: Sam Ravnborg 
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-36-tzimmermann@suse.de