[PATCH 15/46] fbdev/gbefb: Initialize fb_ops to fbdev I/O-memory helpers
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2023-09-27 07:49:47
Also in:
dri-devel, linux-arm-kernel, linux-omap
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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> --- drivers/video/fbdev/Kconfig | 4 +--- drivers/video/fbdev/gbefb.c | 7 +++---- 2 files changed, 4 insertions(+), 7 deletions(-)
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 64c7cbeb4cd79..0f6cd44bc7561 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig@@ -498,9 +498,7 @@ config FB_GBE bool "SGI Graphics Backend frame buffer support" depends on (FB = y) && HAS_IOMEM depends on SGI_IP32 || COMPILE_TEST - select FB_CFB_FILLRECT - select FB_CFB_COPYAREA - select FB_CFB_IMAGEBLIT + select FB_IOMEM_HELPERS help This is the frame buffer device driver for SGI Graphics Backend. This chip is used in SGI O2 and Visual Workstation 320/540.
diff --git a/drivers/video/fbdev/gbefb.c b/drivers/video/fbdev/gbefb.c
index 4fccdccbc364a..e89e5579258ef 100644
--- a/drivers/video/fbdev/gbefb.c
+++ b/drivers/video/fbdev/gbefb.c@@ -1044,14 +1044,13 @@ static int gbefb_mmap(struct fb_info *info, static const struct fb_ops gbefb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_IOMEM_OPS_RDWR, .fb_check_var = gbefb_check_var, .fb_set_par = gbefb_set_par, .fb_setcolreg = gbefb_setcolreg, - .fb_mmap = gbefb_mmap, .fb_blank = gbefb_blank, - .fb_fillrect = cfb_fillrect, - .fb_copyarea = cfb_copyarea, - .fb_imageblit = cfb_imageblit, + __FB_DEFAULT_IOMEM_OPS_DRAW, + .fb_mmap = gbefb_mmap, }; /*
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2.42.0