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-rw-r--r--include/linux/fb.h19
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 75a81eaf3430..31527e17076b 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -1,7 +1,7 @@
1#ifndef _LINUX_FB_H 1#ifndef _LINUX_FB_H
2#define _LINUX_FB_H 2#define _LINUX_FB_H
3 3
4#include <asm/types.h> 4#include <linux/types.h>
5#include <linux/i2c.h> 5#include <linux/i2c.h>
6 6
7struct dentry; 7struct dentry;
@@ -888,7 +888,7 @@ struct fb_info {
888#define fb_writeq sbus_writeq 888#define fb_writeq sbus_writeq
889#define fb_memset sbus_memset_io 889#define fb_memset sbus_memset_io
890 890
891#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || (defined(__sh__) && !defined(__SH5__)) || defined(__powerpc__) || defined(__avr32__) 891#elif defined(__i386__) || defined(__alpha__) || defined(__x86_64__) || defined(__hppa__) || defined(__sh__) || defined(__powerpc__) || defined(__avr32__)
892 892
893#define fb_readb __raw_readb 893#define fb_readb __raw_readb
894#define fb_readw __raw_readw 894#define fb_readw __raw_readw
@@ -960,6 +960,21 @@ extern struct fb_info *registered_fb[FB_MAX];
960extern int num_registered_fb; 960extern int num_registered_fb;
961extern struct class *fb_class; 961extern struct class *fb_class;
962 962
963static inline int lock_fb_info(struct fb_info *info)
964{
965 mutex_lock(&info->lock);
966 if (!info->fbops) {
967 mutex_unlock(&info->lock);
968 return 0;
969 }
970 return 1;
971}
972
973static inline void unlock_fb_info(struct fb_info *info)
974{
975 mutex_unlock(&info->lock);
976}
977
963static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch, 978static inline void __fb_pad_aligned_buffer(u8 *dst, u32 d_pitch,
964 u8 *src, u32 s_pitch, u32 height) 979 u8 *src, u32 s_pitch, u32 height)
965{ 980{