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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-27 09:26:37 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-19 12:54:30 +0200 |
| commit | 48c3734d416ec1c729cb9d81631ae5c325413e93 (patch) | |
| tree | 2c7a621e8a33a32ece4f830ab8125e3d0a8e751e | |
| parent | b910005c98a81cb69a7479f577005a329f08bccd (diff) | |
| download | lwn-48c3734d416ec1c729cb9d81631ae5c325413e93.tar.gz lwn-48c3734d416ec1c729cb9d81631ae5c325413e93.zip | |
fbdev/amifb: 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/20230927074722.6197-5-tzimmermann@suse.de
| -rw-r--r-- | drivers/video/fbdev/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/amifb.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 73c973ea59e6..8ff31da533bf 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -225,6 +225,7 @@ config FB_Q40 config FB_AMIGA tristate "Amiga native chipset support" depends on FB && AMIGA + select FB_IOMEM_FOPS help This is the frame buffer device driver for the builtin graphics chipset found in Amigas. diff --git a/drivers/video/fbdev/amifb.c b/drivers/video/fbdev/amifb.c index 441e7a8dbe58..b18c6b4f129a 100644 --- a/drivers/video/fbdev/amifb.c +++ b/drivers/video/fbdev/amifb.c @@ -3488,6 +3488,7 @@ static irqreturn_t amifb_interrupt(int irq, void *dev_id) static const struct fb_ops amifb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = amifb_check_var, .fb_set_par = amifb_set_par, .fb_setcolreg = amifb_setcolreg, @@ -3497,6 +3498,7 @@ static const struct fb_ops amifb_ops = { .fb_copyarea = amifb_copyarea, .fb_imageblit = amifb_imageblit, .fb_ioctl = amifb_ioctl, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; |