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mxc_ipuv3: fix memory alignment of framebuffer

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The frame-buffer on i.MX boards needs to be aligned for DMA.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
This commit is contained in:
Eric Nelson 2013-07-26 17:53:45 -07:00 • committed by Stefano Babic
parent 10f779da54
commit 4acb4d391f
1 changed files with 3 additions and 2 deletions

5
drivers/video/mxc_ipuv3_fb.c
View file

@ -415,8 +415,9 @@ static int mxcfb_map_video_memory(struct fb_info *fbi)
fbi->fix.smem_len = fbi->var.yres_virtual *
fbi->fix.line_length;
}
fbi->screen_base = (char *)malloc(fbi->fix.smem_len);
fbi->fix.smem_len = roundup(fbi->fix.smem_len, ARCH_DMA_MINALIGN);
fbi->screen_base = (char *)memalign(ARCH_DMA_MINALIGN,
fbi->fix.smem_len);
fbi->fix.smem_start = (unsigned long)fbi->screen_base;
if (fbi->screen_base == 0) {
puts("Unable to allocate framebuffer memory\n");