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authorThomas Zimmermann <tzimmermann@suse.de>2023-09-27 09:27:14 +0200
committerThomas Zimmermann <tzimmermann@suse.de>2023-10-19 12:57:03 +0200
commit153fc9bbac8c3338e4b0d5037c2b8c58e8e0e13b (patch)
tree94de650a5e2874e74f6ccf47d351f227e78d1ae3
parent309ede0f945c1b6f85f0a6735c40b736d2b49f27 (diff)
fbdev/tgafb: 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/20230927074722.6197-42-tzimmermann@suse.de
-rw-r--r--drivers/video/fbdev/Kconfig3
-rw-r--r--drivers/video/fbdev/tgafb.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index fed8298c79ca..7215aaeb4ac7 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -416,10 +416,11 @@ config FB_TGA
depends on FB
depends on PCI || TC
depends on ALPHA || TC
+ select BITREVERSE
select FB_CFB_FILLRECT
select FB_CFB_COPYAREA
select FB_CFB_IMAGEBLIT
- select BITREVERSE
+ select FB_IOMEM_FOPS
select VIDEO_NOMODESET
help
This is the frame buffer device driver for generic TGA and SFB+
diff --git a/drivers/video/fbdev/tgafb.c b/drivers/video/fbdev/tgafb.c
index fc2d08dd1b45..ca43774f3156 100644
--- a/drivers/video/fbdev/tgafb.c
+++ b/drivers/video/fbdev/tgafb.c
@@ -73,6 +73,7 @@ static struct tc_driver tgafb_tc_driver;
static const struct fb_ops tgafb_ops = {
.owner = THIS_MODULE,
+ __FB_DEFAULT_IOMEM_OPS_RDWR,
.fb_check_var = tgafb_check_var,
.fb_set_par = tgafb_set_par,
.fb_setcolreg = tgafb_setcolreg,
@@ -81,6 +82,7 @@ static const struct fb_ops tgafb_ops = {
.fb_fillrect = tgafb_fillrect,
.fb_copyarea = tgafb_copyarea,
.fb_imageblit = tgafb_imageblit,
+ __FB_DEFAULT_IOMEM_OPS_MMAP,
};