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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-11-27 14:15:39 +0100 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-11-29 12:20:24 +0100 |
| commit | df558d53139f8adc7058b3dc17f01ae03c18a440 (patch) | |
| tree | e4ba3983753ea276d42b6f7f6cfcb5b5d3fb46f3 /drivers/auxdisplay | |
| parent | 1d6796547a44fb44252c83b36609d0ae6624cd7c (diff) | |
| download | lwn-df558d53139f8adc7058b3dc17f01ae03c18a440.tar.gz lwn-df558d53139f8adc7058b3dc17f01ae03c18a440.zip | |
auxdisplay/ht16k33: Initialize fb_ops with fbdev macros
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
Diffstat (limited to 'drivers/auxdisplay')
| -rw-r--r-- | drivers/auxdisplay/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/auxdisplay/ht16k33.c | 7 |
2 files changed, 3 insertions, 9 deletions
diff --git a/drivers/auxdisplay/Kconfig b/drivers/auxdisplay/Kconfig index 4377e53f8f57..d944d5298eca 100644 --- a/drivers/auxdisplay/Kconfig +++ b/drivers/auxdisplay/Kconfig @@ -167,10 +167,7 @@ config IMG_ASCII_LCD config HT16K33 tristate "Holtek Ht16K33 LED controller with keyscan" depends on FB && I2C && INPUT - select FB_SYS_FOPS - select FB_SYS_FILLRECT - select FB_SYS_COPYAREA - select FB_SYS_IMAGEBLIT + select FB_SYSMEM_HELPERS select INPUT_MATRIXKMAP select FB_BACKLIGHT select NEW_LEDS diff --git a/drivers/auxdisplay/ht16k33.c b/drivers/auxdisplay/ht16k33.c index f1716e3ce6a9..2f1dc6b4e276 100644 --- a/drivers/auxdisplay/ht16k33.c +++ b/drivers/auxdisplay/ht16k33.c @@ -356,12 +356,9 @@ static int ht16k33_mmap(struct fb_info *info, struct vm_area_struct *vma) static const struct fb_ops ht16k33_fb_ops = { .owner = THIS_MODULE, - .fb_read = fb_sys_read, - .fb_write = fb_sys_write, + __FB_DEFAULT_SYSMEM_OPS_RDWR, .fb_blank = ht16k33_blank, - .fb_fillrect = sys_fillrect, - .fb_copyarea = sys_copyarea, - .fb_imageblit = sys_imageblit, + __FB_DEFAULT_SYSMEM_OPS_DRAW, .fb_mmap = ht16k33_mmap, }; |