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authorTomi Valkeinen <tomi.valkeinen@ti.com>2013-04-18 07:52:42 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2013-04-26 08:28:47 +0300
commit11bd5933abe033fb7a3a0d1f1bd2cb4b6df8143f (patch)
tree710ead685dcbe4094ca6443b23f5b810cdf5bf4e /drivers/video/ps3fb.c
parentc84deb9d615c02993ce0972a0b34585c7624822f (diff)
downloadvexpress-lsk-11bd5933abe033fb7a3a0d1f1bd2cb4b6df8143f.tar.gz
fbdev/ps3fb: 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: Tomi Valkeinen <tomi.valkeinen@ti.com> Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Diffstat (limited to 'drivers/video/ps3fb.c')
-rw-r--r--drivers/video/ps3fb.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/video/ps3fb.c b/drivers/video/ps3fb.c
index 920c27bf394..d9f08c653d6 100644
--- a/drivers/video/ps3fb.c
+++ b/drivers/video/ps3fb.c
@@ -705,21 +705,15 @@ static int ps3fb_pan_display(struct fb_var_screeninfo *var,
static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
- unsigned long size, offset;
+ int r;
- size = vma->vm_end - vma->vm_start;
- offset = vma->vm_pgoff << PAGE_SHIFT;
- if (offset + size > info->fix.smem_len)
- return -EINVAL;
-
- offset += info->fix.smem_start;
- if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
- size, vma->vm_page_prot))
- return -EAGAIN;
+ r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len);
dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
- offset, vma->vm_start);
- return 0;
+ info->fix.smem_start + vma->vm_pgoff << PAGE_SHIFT,
+ vma->vm_start);
+
+ return r;
}
/*