From: Ben Collins <bcollins@ubuntu.com>
Date: Sat, 3 Mar 2012 20:43:27 +0000 (-0800)
Subject: udlfb: Make sure to get correct endian keys from vendor descriptor
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b49f184b640dcfab7ede394cf2a1ff4fe3d154f5;p=mv-sheeva.git

udlfb: Make sure to get correct endian keys from vendor descriptor

The driver was not using le16_to_cpu when reading keys from the vendor
descriptor, causing incorrect parsing. Mainly, sku_pixel_limit was not
being parsed on big-endian systems. This would result in a blank screen
on big-endian CPUs where the DL chips's max mode was smaller than the
monitor's native mode.

Signed-off-by: Ben Collins <bcollins@ubuntu.com>
Signed-off-by: Bernie Thompson <bernie@plugable.com>
---

diff --git a/drivers/video/udlfb.c b/drivers/video/udlfb.c
index cbf030d0dfc..4330cf4b17a 100644
--- a/drivers/video/udlfb.c
+++ b/drivers/video/udlfb.c
@@ -1541,7 +1541,7 @@ static int dlfb_parse_vendor_descriptor(struct dlfb_data *dev,
 			u8 length;
 			u16 key;
 
-			key = *((u16 *) desc);
+			key = le16_to_cpu(*((u16 *) desc));
 			desc += sizeof(u16);
 			length = *desc;
 			desc++;