From 983fff36cdd246d9a558c9eb7790200989c25c01 Mon Sep 17 00:00:00 2001 From: Andrey Gusakov Date: Wed, 5 Jul 2017 20:18:07 +0300 Subject: video: tc358767: fix AUXDATAn registers access during write First four bytes should go to DP0_AUXWDATA0. Due to bug if len > 4 first four bytes was writen to DP0_AUXWDATA1 and all data get shifted by 4 bytes. Fix it. Signed-off-by: Andrey Gusakov Signed-off-by: Lucas Stach --- drivers/video/tc358767.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers') diff --git a/drivers/video/tc358767.c b/drivers/video/tc358767.c index cc6a35e70b..4d311c4647 100644 --- a/drivers/video/tc358767.c +++ b/drivers/video/tc358767.c @@ -388,7 +388,7 @@ static int tc_aux_write(struct tc_data *tc, int reg, char *data, int size) i++; if (((i % 4) == 0) || (i == size)) { - tc_write(DP0_AUXWDATA(i >> 2), tmp); + tc_write(DP0_AUXWDATA((i - 1) >> 2), tmp); tmp = 0; } } @@ -476,7 +476,7 @@ static int tc_aux_i2c_write(struct tc_data *tc, struct i2c_msg *msg) i++; if (((i % 4) == 0) || (i == msg->len)) { - tc_write(DP0_AUXWDATA(i >> 2), tmp); + tc_write(DP0_AUXWDATA((i - 1) >> 2), tmp); tmp = 0; } } -- cgit v1.2.3