1 files changed, 8 insertions, 11 deletions

diff --git a/include/linux/fb.h b/include/linux/fb.h
index 31527e17076b..330c4b1bfcaa 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -123,6 +123,7 @@ struct dentry;
 #define FB_ACCEL_TRIDENT_3DIMAGE 51     /* Trident 3DImage              */
 #define FB_ACCEL_TRIDENT_BLADE3D 52     /* Trident Blade3D              */
 #define FB_ACCEL_TRIDENT_BLADEXP 53     /* Trident BladeXP              */
+#define FB_ACCEL_CIRRUS_ALPINE   53     /* Cirrus Logic 543x/544x/5480  */
 #define FB_ACCEL_NEOMAGIC_NM2070 90     /* NeoMagic NM2070              */
 #define FB_ACCEL_NEOMAGIC_NM2090 91     /* NeoMagic NM2090              */
 #define FB_ACCEL_NEOMAGIC_NM2093 92     /* NeoMagic NM2093              */
@@ -172,8 +173,12 @@ struct fb_fix_screeninfo {
 /* Interpretation of offset for color fields: All offsets are from the right,
  * inside a "pixel" value, which is exactly 'bits_per_pixel' wide (means: you
  * can use the offset as right argument to <<). A pixel afterwards is a bit
- * stream and is written to video memory as that unmodified. This implies
- * big-endian byte order if bits_per_pixel is greater than 8.
+ * stream and is written to video memory as that unmodified.
+ *
+ * For pseudocolor: offset and length should be the same for all color
+ * components. Offset specifies the position of the least significant bit
+ * of the pallette index in a pixel value. Length indicates the number
+ * of available palette entries (i.e. # of entries = 1 << length).
  */
 struct fb_bitfield {
         __u32 offset;                   /* beginning of bitfield        */
@@ -960,15 +965,7 @@ extern struct fb_info *registered_fb[FB_MAX];
 extern int num_registered_fb;
 extern struct class *fb_class;
 
-static inline int lock_fb_info(struct fb_info *info)
-{
-        mutex_lock(&info->lock);
-        if (!info->fbops) {
-                mutex_unlock(&info->lock);
-                return 0;
-        }
-        return 1;
-}
+extern int lock_fb_info(struct fb_info *info);
 
 static inline void unlock_fb_info(struct fb_info *info)
 {