From: Thomas Zimmermann tzimmermann@suse.de
stable inclusion from stable-v6.6.33 commit c00e8fd749502c02085534c60b1edca4fc479c91 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/IAD6H2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 6b180f66c0dd6266eeb2f74b59ee79a9f14fe430 ]
Provide helpers for accessing I/O memory in a helper module. The fbdev core uses these helpers, so select the module unconditionally for fbdev. Drivers will later be able to select the module individually and the helpers will become optional.
Signed-off-by: Thomas Zimmermann tzimmermann@suse.de Reviewed-by: Javier Martinez Canillas javierm@redhat.com Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-2-tzimmerm... Stable-dep-of: 01c0cce88c54 ("drm/omapdrm: Fix console with deferred ops") Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Wang Hai wanghai38@huawei.com --- drivers/video/fbdev/core/Kconfig | 6 ++++++ drivers/video/fbdev/core/Makefile | 3 ++- drivers/video/fbdev/core/fb_io_fops.c | 3 +++ 3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/video/fbdev/core/Kconfig b/drivers/video/fbdev/core/Kconfig index 5ac1b0637531..56f721ebcff0 100644 --- a/drivers/video/fbdev/core/Kconfig +++ b/drivers/video/fbdev/core/Kconfig @@ -4,6 +4,7 @@ #
config FB_CORE + select FB_IOMEM_FOPS select VIDEO_CMDLINE tristate
@@ -144,12 +145,17 @@ config FB_DMAMEM_HELPERS select FB_SYS_FOPS select FB_SYS_IMAGEBLIT
+config FB_IOMEM_FOPS + tristate + depends on FB_CORE + config FB_IOMEM_HELPERS bool depends on FB_CORE select FB_CFB_COPYAREA select FB_CFB_FILLRECT select FB_CFB_IMAGEBLIT + select FB_IOMEM_FOPS
config FB_SYSMEM_HELPERS bool diff --git a/drivers/video/fbdev/core/Makefile b/drivers/video/fbdev/core/Makefile index edfde2948e5c..d165055ec3fc 100644 --- a/drivers/video/fbdev/core/Makefile +++ b/drivers/video/fbdev/core/Makefile @@ -3,7 +3,7 @@ obj-$(CONFIG_FB_NOTIFY) += fb_notify.o obj-$(CONFIG_FB_CORE) += fb.o fb-y := fb_info.o \ fbmem.o fbcmap.o \ - modedb.o fbcvt.o fb_cmdline.o fb_io_fops.o + modedb.o fbcvt.o fb_cmdline.o ifdef CONFIG_FB fb-y += fb_backlight.o fbmon.o endif @@ -26,6 +26,7 @@ endif obj-$(CONFIG_FB_CFB_FILLRECT) += cfbfillrect.o obj-$(CONFIG_FB_CFB_COPYAREA) += cfbcopyarea.o obj-$(CONFIG_FB_CFB_IMAGEBLIT) += cfbimgblt.o +obj-$(CONFIG_FB_IOMEM_FOPS) += fb_io_fops.o obj-$(CONFIG_FB_SYS_FILLRECT) += sysfillrect.o obj-$(CONFIG_FB_SYS_COPYAREA) += syscopyarea.o obj-$(CONFIG_FB_SYS_IMAGEBLIT) += sysimgblt.o diff --git a/drivers/video/fbdev/core/fb_io_fops.c b/drivers/video/fbdev/core/fb_io_fops.c index 5985e5e1b040..871b829521af 100644 --- a/drivers/video/fbdev/core/fb_io_fops.c +++ b/drivers/video/fbdev/core/fb_io_fops.c @@ -131,3 +131,6 @@ ssize_t fb_io_write(struct fb_info *info, const char __user *buf, size_t count, return (cnt) ? cnt : err; } EXPORT_SYMBOL(fb_io_write); + +MODULE_DESCRIPTION("Fbdev helpers for framebuffers in I/O memory"); +MODULE_LICENSE("GPL");