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[v2,17/32] fbdev/au1200fb: Initialize fb_ops with fbdev macros

Message ID 20231127131655.4020-18-tzimmermann@suse.de
State New
Headers show
Series fbdev: Modularize helpers for struct fb_ops | expand

Commit Message

Thomas Zimmermann Nov. 27, 2023, 1:15 p.m. UTC 
Initialize the instance of struct fb_ops with fbdev initializer
macros for framebuffers in DMA-able virtual address space. Set the
read/write, draw and mmap callbacks to the correct implementation
and avoid implicit defaults. Also select the necessary helpers in
Kconfig.

Fbdev drivers sometimes rely on the callbacks being NULL for a
default I/O-memory-based 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.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
---
 drivers/video/fbdev/Kconfig    | 5 +----
 drivers/video/fbdev/au1200fb.c | 7 ++-----
 2 files changed, 3 insertions(+), 9 deletions(-)
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Patch

diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index de57bf59e0179..4c82890887ba1 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -1457,10 +1457,7 @@  config FB_AU1100
 config FB_AU1200
 	bool "Au1200/Au1300 LCD Driver"
 	depends on (FB = y) && MIPS_ALCHEMY
-	select FB_SYS_FILLRECT
-	select FB_SYS_COPYAREA
-	select FB_SYS_IMAGEBLIT
-	select FB_SYS_FOPS
+	select FB_DMAMEM_HELPERS
 	help
 	  This is the framebuffer driver for the Au1200/Au1300 SOCs.
 	  It can drive various panels and CRTs by passing in kernel cmd line
diff --git a/drivers/video/fbdev/au1200fb.c b/drivers/video/fbdev/au1200fb.c
index 817c1ebb625b6..16ebbab500972 100644
--- a/drivers/video/fbdev/au1200fb.c
+++ b/drivers/video/fbdev/au1200fb.c
@@ -1488,15 +1488,12 @@  static int au1200fb_ioctl(struct fb_info *info, unsigned int cmd,
 
 static const struct fb_ops au1200fb_fb_ops = {
 	.owner		= THIS_MODULE,
+	__FB_DEFAULT_DMAMEM_OPS_RDWR,
 	.fb_check_var	= au1200fb_fb_check_var,
 	.fb_set_par	= au1200fb_fb_set_par,
 	.fb_setcolreg	= au1200fb_fb_setcolreg,
 	.fb_blank	= au1200fb_fb_blank,
-	.fb_fillrect	= sys_fillrect,
-	.fb_copyarea	= sys_copyarea,
-	.fb_imageblit	= sys_imageblit,
-	.fb_read	= fb_sys_read,
-	.fb_write	= fb_sys_write,
+	__FB_DEFAULT_DMAMEM_OPS_DRAW,
 	.fb_sync	= NULL,
 	.fb_ioctl	= au1200fb_ioctl,
 	.fb_mmap	= au1200fb_fb_mmap,