-bitcpy_rev(unsigned long __iomem *dst, int dst_idx, const unsigned long __iomem *src,
- int src_idx, int bits, unsigned n)
+bitcpy_rev(struct fb_info *p, unsigned long __iomem *dst, int dst_idx,
+ const unsigned long __iomem *src, int src_idx, int bits,
+ unsigned n, u32 bswapmask)