linux-toradex.git/drivers/auxdisplay/Kconfig, branch v6.10 Linux kernel for Apalis and Colibri modules auxdisplay: linedisp: Group display drivers together 2024-04-02T16:09:14+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-03-26T19:02:27+00:00 16934de47da778f0861057df98b08058e0935a5c For better usability group the display drivers together in Kconfig. With this we will have the following sections: - Character LCD - Samsung KS0108 LCD controller - Single character line display - Character LCD with non-conforming interface Keep Makefile entries sorted alphabetically. While at it, drop redundant 'default n' entries. Tested-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 
For better usability group the display drivers together in Kconfig.
With this we will have the following sections:
  - Character LCD
  - Samsung KS0108 LCD controller
  - Single character line display
  - Character LCD with non-conforming interface

Keep Makefile entries sorted alphabetically.

While at it, drop redundant 'default n' entries.

Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
auxdisplay: Add 7-segment LED display driver 2024-03-08T12:15:47+00:00 Chris Packham chris.packham@alliedtelesis.co.nz 2024-03-07T19:50:51+00:00 899383f9ecf59881a0f43fbf7d74b26bd1e1a16f Add a driver for a 7-segment LED display. At the moment only one character is supported but it should be possible to expand this to support more characters and/or 14-segment displays in the future. Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz> Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 
Add a driver for a 7-segment LED display. At the moment only one
character is supported but it should be possible to expand this to
support more characters and/or 14-segment displays in the future.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
auxdisplay: Add driver for MAX695x 7-segment LED controllers 2024-02-26T18:02:35+00:00 Andy Shevchenko andriy.shevchenko@linux.intel.com 2024-02-26T16:19:21+00:00 a9bcd02fa42217c795bc9538a149936c82648476 Add initial driver for the MAX6958 and MAX6959 7-segment LED controllers. Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> 
Add initial driver for the MAX6958 and MAX6959 7-segment LED
controllers.

Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
auxdisplay/ht16k33: Initialize fb_ops with fbdev macros 2023-11-29T11:20:24+00:00 Thomas Zimmermann tzimmermann@suse.de 2023-11-27T13:15:39+00:00 df558d53139f8adc7058b3dc17f01ae03c18a440 Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in virtual address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default I/O-memory-based 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. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Miguel Ojeda <ojeda@kernel.org> Cc: Robin van der Gracht <robin@protonic.nl> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Robin van der Gracht <robin@protonic.nl> Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-11-tzimmermann@suse.de 
Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in virtual address space. Set the read/write,
draw and mmap callbacks to the correct implementation and avoid
implicit defaults. Also select the necessary helpers in Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default I/O-memory-based 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.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Cc: Robin van der Gracht <robin@protonic.nl>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Robin van der Gracht <robin@protonic.nl>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-11-tzimmermann@suse.de
auxdisplay/cfag12864bfb: Initialize fb_ops with fbdev macros 2023-11-29T11:20:21+00:00 Thomas Zimmermann tzimmermann@suse.de 2023-11-27T13:15:37+00:00 36e6cacdb095e35f2389ba8829db12603133d61d Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in virtual address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default I/O-memory-based 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. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Cc: Miguel Ojeda <ojeda@kernel.org> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-9-tzimmermann@suse.de 
Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in virtual address space. Set the read/write,
draw and mmap callbacks to the correct implementation and avoid
implicit defaults. Also select the necessary helpers in Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default I/O-memory-based 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.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: Miguel Ojeda <ojeda@kernel.org>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-9-tzimmermann@suse.de
auxdisplay: ht16k33: Make use of device properties 2021-10-21T21:36:30+00:00 Geert Uytterhoeven geert@linux-m68k.org 2021-10-19T14:45:20+00:00 5d343f7c458caf4d4ff050617f539ff4667c8253 The device property API allows drivers to gather device resources from different sources, such as ACPI, and lift the dependency on Device Tree. Convert the driver to unleash the power of the device property API. Suggested-by: Marek Behún <kabel@kernel.org> Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> 
The device property API allows drivers to gather device resources from
different sources, such as ACPI, and lift the dependency on Device Tree.
Convert the driver to unleash the power of the device property API.

Suggested-by: Marek Behún <kabel@kernel.org>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
auxdisplay: ht16k33: Add LED support 2021-10-21T21:36:30+00:00 Geert Uytterhoeven geert@linux-m68k.org 2021-10-19T14:45:19+00:00 c223d9c636ed55ba8abaa94be329f92fe43d522d Instantiate a single LED based on the "led" subnode in DT. This allows the user to control display brightness and blinking (backed by hardware support) through the LED class API and triggers, and exposes the display color. The LED will be named "auxdisplay:<color>:<function>". When running in dot-matrix mode and if no "led" subnode is found, the driver falls back to the traditional backlight mode, to preserve backwards compatibility. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Reviewed-by: Marek Behún <kabel@kernel.org> Reviewed-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> 
Instantiate a single LED based on the "led" subnode in DT.
This allows the user to control display brightness and blinking (backed
by hardware support) through the LED class API and triggers, and exposes
the display color.  The LED will be named
"auxdisplay:<color>:<function>".

When running in dot-matrix mode and if no "led" subnode is found, the
driver falls back to the traditional backlight mode, to preserve
backwards compatibility.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
auxdisplay: ht16k33: Add support for segment displays 2021-10-21T21:36:30+00:00 Geert Uytterhoeven geert@linux-m68k.org 2021-10-19T14:45:17+00:00 a0428724cf9bd73185321274a5918e9d43778967 The Holtek HT16K33 LED controller is not only used for driving dot-matrix displays, but also for driving segment displays. Add support for 4-digit 7-segment and quad 14-segment alphanumeric displays, like the Adafruit 7-segment and 14-segment display backpack and FeatherWing expansion boards. Use the character line display core support to display a message, which will be scrolled if it doesn't fit. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Robin van der Gracht <robin@protonic.nl> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> 
The Holtek HT16K33 LED controller is not only used for driving
dot-matrix displays, but also for driving segment displays.

Add support for 4-digit 7-segment and quad 14-segment alphanumeric
displays, like the Adafruit 7-segment and 14-segment display backpack
and FeatherWing expansion boards.  Use the character line display core
support to display a message, which will be scrolled if it doesn't fit.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Robin van der Gracht <robin@protonic.nl>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
auxdisplay: Extract character line display core support 2021-10-21T21:36:28+00:00 Geert Uytterhoeven geert@linux-m68k.org 2021-10-19T14:45:05+00:00 7e76aece6f036cb7ada4858d6aa73825bfe22983 Extract the character line display core support from the simple ASCII LCD driver for the MIPS Boston, Malta & SEAD3 development boards into its own subdriver, so it can be reused for other displays. As this moves the "message" device attribute in sysfs in a "linedisp.N" subdirectory, a symlink is added to preserve backwards compatibility. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> 
Extract the character line display core support from the simple ASCII
LCD driver for the MIPS Boston, Malta & SEAD3 development boards into
its own subdriver, so it can be reused for other displays.

As this moves the "message" device attribute in sysfs in a "linedisp.N"
subdirectory, a symlink is added to preserve backwards compatibility.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
auxdisplay: Fix duplicate CHARLCD config symbol 2021-01-25T21:14:19+00:00 Geert Uytterhoeven geert@linux-m68k.org 2021-01-22T16:01:02+00:00 b45616445a6e346daf8a173a0c51413aec067ebb A second CHARLCD config symbol was added instead of moving the existing one. Fix this by removing the old one. Fixes: 718e05ed92ecac0d ("auxdisplay: Introduce hd44780_common.[ch]") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> 
A second CHARLCD config symbol was added instead of moving the existing
one.  Fix this by removing the old one.

Fixes: 718e05ed92ecac0d ("auxdisplay: Introduce hd44780_common.[ch]")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>