From: Eric Nelson <eric.nelson@boundarydevices.com>
Date: Sat, 27 Jul 2013 00:53:45 +0000 (-0700)
Subject: mxc_ipuv3: fix memory alignment of framebuffer
X-Git-Tag: v2013.10-rc1~22^2^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=4acb4d391f005c0c72f7b84041b3884e4260a5a4;p=platform%2Fkernel%2Fu-boot.git

mxc_ipuv3: fix memory alignment of framebuffer

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

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
---

diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c
index ace226c..d922d5d 100644
--- a/drivers/video/mxc_ipuv3_fb.c
+++ b/drivers/video/mxc_ipuv3_fb.c
@@ -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");