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fbdev/sunxvr500: Initialize fb_ops to fbdev I/O-memory helpers

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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/20230927074722.6197-40-tzimmermann@suse.de
This commit is contained in:
Thomas Zimmermann 2023-09-27 09:27:12 +02:00
parent 6cdc804e41
commit 188a8646b9
2 changed files with 3 additions and 0 deletions
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1
drivers/video/fbdev/Kconfig
View File

@ -596,6 +596,7 @@ config FB_XVR500
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
select FB_IOMEM_FOPS
select VIDEO_NOMODESET
help
This is the framebuffer device for the Sun XVR-500 and similar

2
drivers/video/fbdev/sunxvr500.c
View File

@ -189,10 +189,12 @@ static void e3d_copyarea(struct fb_info *info, const struct fb_copyarea *area)
static const struct fb_ops e3d_ops = {
.owner = THIS_MODULE,
__FB_DEFAULT_IOMEM_OPS_RDWR,
.fb_setcolreg = e3d_setcolreg,
.fb_fillrect = e3d_fillrect,
.fb_copyarea = e3d_copyarea,
.fb_imageblit = e3d_imageblit,
__FB_DEFAULT_IOMEM_OPS_MMAP,
};
static int e3d_set_fbinfo(struct e3d_info *ep)