[PATCH] fbdev: Batch cmap changes at driver level

This patch adds to the fbdev interface a set_cmap callback that allow the
driver to "batch" palette changes.  This is useful for drivers like
radeonfb which might require lenghtly workarounds on palette accesses, thus
allowing to factor out those workarounds efficiently.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index b45d3e2d711a..b468bf496547 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -563,6 +563,9 @@ struct fb_ops {
         int (*fb_setcolreg)(unsigned regno, unsigned red, unsigned green,
                             unsigned blue, unsigned transp, struct fb_info *info);
 
+        /* set color registers in batch */
+        int (*fb_setcmap)(struct fb_cmap *cmap, struct fb_info *info);
+
         /* blank display */
         int (*fb_blank)(int blank, struct fb_info *info);