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| author |  Thomas Zimmermann <tzimmermann@suse.de>
| 2023-09-27 09:27:09 +0200 |
|---|---|---|
| committer | Thomas Zimmermann <tzimmermann@suse.de>
| 2023-10-19 12:56:43 +0200 |
| commit | 30543d363dc91e569d573fd4e2bb7404adbc6299 (patch) | |
| tree | 30966ae34aa02968bc952bf2a594bf2e215381e7 /drivers/video | |
| parent | fbdev/sisfb: Initialize fb_ops to fbdev I/O-memory helpers (diff) | |
| download | linux-30543d363dc91e569d573fd4e2bb7404adbc6299.tar.gz linux-30543d363dc91e569d573fd4e2bb7404adbc6299.tar.bz2 linux-30543d363dc91e569d573fd4e2bb7404adbc6299.zip | |
fbdev/sm501fb: Initialize fb_ops to fbdev I/O-memory helpers
Initialize each 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/20230927074722.6197-37-tzimmermann@suse.de
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/video/fbdev/sm501fb.c | 4 |
2 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index fd0dba398c2d..e58fe64578db 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1667,6 +1667,7 @@ config FB_SM501 select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS help Frame buffer driver for the CRT and LCD controllers in the Silicon Motion SM501. diff --git a/drivers/video/fbdev/sm501fb.c b/drivers/video/fbdev/sm501fb.c index 65c799ac5604..d6fdc1737cd2 100644 --- a/drivers/video/fbdev/sm501fb.c +++ b/drivers/video/fbdev/sm501fb.c @@ -1452,6 +1452,7 @@ static void sm501fb_fillrect(struct fb_info *info, const struct fb_fillrect *rec static struct fb_ops sm501fb_ops_crt = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = sm501fb_check_var_crt, .fb_set_par = sm501fb_set_par_crt, .fb_blank = sm501fb_blank_crt, @@ -1462,10 +1463,12 @@ static struct fb_ops sm501fb_ops_crt = { .fb_copyarea = sm501fb_copyarea, .fb_imageblit = cfb_imageblit, .fb_sync = sm501fb_sync, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static struct fb_ops sm501fb_ops_pnl = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = sm501fb_check_var_pnl, .fb_set_par = sm501fb_set_par_pnl, .fb_pan_display = sm501fb_pan_pnl, @@ -1476,6 +1479,7 @@ static struct fb_ops sm501fb_ops_pnl = { .fb_copyarea = sm501fb_copyarea, .fb_imageblit = cfb_imageblit, .fb_sync = sm501fb_sync, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; /* sm501_init_cursor |