From: Thomas Zimmermann Date: Wed, 27 Sep 2023 07:26:42 +0000 (+0200) Subject: fbdev/cirrusfb: Initialize fb_ops to fbdev I/O-memory helpers X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=0296ddfe57c3d801d2a50aca4fec2066eaa2f652;p=linux.git 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 Acked-by: Javier Martinez Canillas Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-10-tzimmermann@suse.de --- diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 72b6cdfbe162f..43372e13b61f8 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 9d369b6a4dcc7..e29217e476ea4 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)