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| author | Thomas Zimmermann <tzimmermann@suse.de> | 2023-09-27 10:26:42 +0300 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de> | 2023-10-19 13:54:52 +0300 |
| commit | 0296ddfe57c3d801d2a50aca4fec2066eaa2f652 (patch) | |
| tree | 94c8d782d207d3f154fef068cceb6fb954c5370d /drivers/video | |
| parent | 93ede59ccd9455412fdbc5cc813fc86162e21165 (diff) | |
| download | linux-0296ddfe57c3d801d2a50aca4fec2066eaa2f652.tar.xz | |
fbdev/cirrusfb: 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/20230927074722.6197-10-tzimmermann@suse.de
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/cirrusfb.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 72b6cdfbe162..43372e13b61f 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -74,6 +74,7 @@ config FB_CIRRUS select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS select VIDEO_NOMODESET help This enables support for Cirrus Logic GD542x/543x based boards on diff --git a/drivers/video/fbdev/cirrusfb.c b/drivers/video/fbdev/cirrusfb.c index 9d369b6a4dcc..e29217e476ea 100644 --- a/drivers/video/fbdev/cirrusfb.c +++ b/drivers/video/fbdev/cirrusfb.c @@ -1961,6 +1961,7 @@ static const struct fb_ops cirrusfb_ops = { .owner = THIS_MODULE, .fb_open = cirrusfb_open, .fb_release = cirrusfb_release, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_setcolreg = cirrusfb_setcolreg, .fb_check_var = cirrusfb_check_var, .fb_set_par = cirrusfb_set_par, @@ -1970,6 +1971,7 @@ static const struct fb_ops cirrusfb_ops = { .fb_copyarea = cirrusfb_copyarea, .fb_sync = cirrusfb_sync, .fb_imageblit = cirrusfb_imageblit, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static int cirrusfb_set_fbinfo(struct fb_info *info) |