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drm/udl: Make sure to get correct endian keys from vendor descriptor

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This is a port of
commit b49f184b64
Author: Ben Collins <bcollins@ubuntu.com>
from udlfb to udl kms driver.

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: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie 2012-06-25 07:32:14 +01:00
parent 6b16351acb
commit d42f0349f3
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/udl/udl_main.c
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@ -61,7 +61,7 @@ static int udl_parse_vendor_descriptor(struct drm_device *dev,
u8 length;
u16 key;
key = *((u16 *) desc);
key = le16_to_cpu(*((u16 *) desc));
desc += sizeof(u16);
length = *desc;
desc++;