[PATCH 40/46] fbdev/tdfxfb: Initialize fb_ops to fbdev I/O-memory helpers

[Thomas Zimmermann]

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 at suse.de>
---
 drivers/video/fbdev/Kconfig  | 3 ++-
 drivers/video/fbdev/tdfxfb.c | 6 +++---
 2 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 1da6bf1eb6ff6..79505f22bcd16 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1305,9 +1305,10 @@ config FB_KYRO
 config FB_3DFX
 	tristate "3Dfx Banshee/Voodoo3/Voodoo5 display support"
 	depends on FB && PCI
-	select FB_CFB_IMAGEBLIT
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
+	select FB_CFB_IMAGEBLIT
+	select FB_IOMEM_FOPS
 	select FB_MODE_HELPERS
 	select VIDEO_NOMODESET
 	help
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index 68e2a82220f3f..22aa953138b0f 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -1142,6 +1142,7 @@ static int tdfxfb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 
 static const struct fb_ops tdfxfb_ops = {
 	.owner		= THIS_MODULE,
+	__FB_DEFAULT_IOMEM_OPS_RDWR,
 	.fb_check_var	= tdfxfb_check_var,
 	.fb_set_par	= tdfxfb_set_par,
 	.fb_setcolreg	= tdfxfb_setcolreg,
@@ -1154,10 +1155,9 @@ static const struct fb_ops tdfxfb_ops = {
 	.fb_copyarea	= tdfxfb_copyarea,
 	.fb_imageblit	= tdfxfb_imageblit,
 #else
-	.fb_fillrect	= cfb_fillrect,
-	.fb_copyarea	= cfb_copyarea,
-	.fb_imageblit	= cfb_imageblit,
+	__FB_DEFAULT_IOMEM_OPS_DRAW,
 #endif
+	__FB_DEFAULT_IOMEM_OPS_MMAP,
 };
 
 #ifdef CONFIG_FB_3DFX_I2C
-- 
2.42.0