Commit 51fc8e8a authored by Tomi Valkeinen's avatar Tomi Valkeinen

fbdev/sa1100fb: use vm_iomap_memory()

Use vm_iomap_memory() instead of [io_]remap_pfn_range().
vm_iomap_memory() gives us much simpler API to map memory to userspace,
and reduces possibilities for bugs.
Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 7b3d1c82
......@@ -556,7 +556,7 @@ static int sa1100fb_mmap(struct fb_info *info,
struct vm_area_struct *vma)
{
struct sa1100fb_info *fbi = (struct sa1100fb_info *)info;
unsigned long start, len, off = vma->vm_pgoff << PAGE_SHIFT;
unsigned long off = vma->vm_pgoff << PAGE_SHIFT;
if (off < info->fix.smem_len) {
vma->vm_pgoff += 1; /* skip over the palette */
......@@ -564,19 +564,9 @@ static int sa1100fb_mmap(struct fb_info *info,
fbi->map_dma, fbi->map_size);
}
start = info->fix.mmio_start;
len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.mmio_len);
if ((vma->vm_end - vma->vm_start + off) > len)
return -EINVAL;
off += start & PAGE_MASK;
vma->vm_pgoff = off >> PAGE_SHIFT;
vma->vm_flags |= VM_IO;
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
return io_remap_pfn_range(vma, vma->vm_start, off >> PAGE_SHIFT,
vma->vm_end - vma->vm_start,
vma->vm_page_prot);
return vm_iomap_memory(vma, info->fix.mmio_start, info->fix.mmio_len);
}
static struct fb_ops sa1100fb_ops = {
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment