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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-27 10:26:39 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-19 13:54:38 +0300 |
| commit | 425562be861b46ba8dac78e3927c1cbff5fbb514 (patch) | |
| tree | 6fb1f91e6eb8d286610cbd92142a2a3022f67648 | |
| parent | 7421a6303edc13cf3b54c465c6848bdd440e51b7 (diff) | |
| download | linux-425562be861b46ba8dac78e3927c1cbff5fbb514.tar.xz | |
fbdev/atafb: Initialize fb_ops to fbdev I/O-memory helpers
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 <tzimmermann@suse.de>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-7-tzimmermann@suse.de
| -rw-r--r-- | drivers/video/fbdev/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/atafb.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 4be65024c614..6bc46f97a75a 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -289,6 +289,7 @@ config FB_ATARI select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS help This is the frame buffer device driver for the builtin graphics chipset found in Ataris. diff --git a/drivers/video/fbdev/atafb.c b/drivers/video/fbdev/atafb.c index c4a420b791b9..b8ed1c537293 100644 --- a/drivers/video/fbdev/atafb.c +++ b/drivers/video/fbdev/atafb.c @@ -2665,6 +2665,7 @@ static int atafb_set_par(struct fb_info *info) static struct fb_ops atafb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = atafb_check_var, .fb_set_par = atafb_set_par, .fb_blank = atafb_blank, @@ -2673,6 +2674,7 @@ static struct fb_ops atafb_ops = { .fb_copyarea = atafb_copyarea, .fb_imageblit = atafb_imageblit, .fb_ioctl = atafb_ioctl, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static void check_default_par(int detected_mode) |