| Message ID | 20231115102954.7102-24-tzimmermann@suse.de (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | fbdev: Modularize helpers for struct fb_ops | expand |
Thomas Zimmermann <tzimmermann@suse.de> writes: > Initialize the instance of struct fb_ops with fbdev initializer > macros for framebuffers in DMA-able address space. This explictily > sets the read/write, draw and mmap callbacks to the correct default > implementation. Also select the necessary helpers in Kconfig. > > Fbdev drivers sometimes rely on the callbacks being NULL for a > default implementation to be invoked; hence requireing 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. > > Set the callbacks via macros. No functional changes. > > Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> > --- Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig index 658848475fa7a..357c125c11204 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1480,6 +1480,7 @@ config FB_WM8505 select FB_SYS_FILLRECT if (!FB_WMT_GE_ROPS) select FB_SYS_COPYAREA if (!FB_WMT_GE_ROPS) select FB_SYS_IMAGEBLIT + select FB_SYS_FOPS select FB_MODE_HELPERS select VIDEOMODE_HELPERS help diff --git a/drivers/video/fbdev/wm8505fb.c b/drivers/video/fbdev/wm8505fb.c index 5833147aa43d1..00952e9c88028 100644 --- a/drivers/video/fbdev/wm8505fb.c +++ b/drivers/video/fbdev/wm8505fb.c @@ -248,6 +248,7 @@ static int wm8505fb_blank(int blank, struct fb_info *info) static const struct fb_ops wm8505fb_ops = { .owner = THIS_MODULE, + __FB_DEFAULT_DMAMEM_OPS_RDWR, .fb_set_par = wm8505fb_set_par, .fb_setcolreg = wm8505fb_setcolreg, .fb_fillrect = wmt_ge_fillrect, @@ -256,6 +257,7 @@ static const struct fb_ops wm8505fb_ops = { .fb_sync = wmt_ge_sync, .fb_pan_display = wm8505fb_pan_display, .fb_blank = wm8505fb_blank, + __FB_DEFAULT_IOMEM_OPS_MMAP, }; static int wm8505fb_probe(struct platform_device *pdev)
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in DMA-able address space. This explictily sets the read/write, draw and mmap callbacks to the correct default implementation. Also select the necessary helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requireing 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. Set the callbacks via macros. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/video/fbdev/Kconfig | 1 + drivers/video/fbdev/wm8505fb.c | 2 ++ 2 files changed, 3 insertions(+)