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[media] adv7604: corrected edid crc-calculation

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Signed-off-by: Martin Bugge <marbugge@cisco.com>
Reviewed-by: Mats Randgaard <matrandg@cisco.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Martin Bugge 2013-08-14 09:25:48 -03:00 • committed by Mauro Carvalho Chehab
parent 15edc1ccdb
commit 350a1815de
1 changed files with 4 additions and 4 deletions
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8
drivers/media/i2c/ad9389b.c
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@ -983,12 +983,12 @@ static void ad9389b_check_monitor_present_status(struct v4l2_subdev *sd)
static bool edid_block_verify_crc(u8 *edid_block) static bool edid_block_verify_crc(u8 *edid_block)
{ {
int i;
u8 sum = 0; u8 sum = 0;
int i;
for (i = 0; i < 127; i++) for (i = 0; i < 128; i++)
sum += *(edid_block + i); sum += edid_block[i];
return ((255 - sum + 1) == edid_block[127]); return sum == 0;
} }
static bool edid_segment_verify_crc(struct v4l2_subdev *sd, u32 segment) static bool edid_segment_verify_crc(struct v4l2_subdev *sd, u32 segment)