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V4L/DVB (6124): cx25840: add a few 10 microsecond delays

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There were a couple of places in the cx25840 initialization where the
datasheet called for a 10 microsecond delay, which we ignored because
of the 10 usec I2C delay. Put them in anyway now that the I2C delay
was decreased to 5 usec.

Signed-off-by: Tyler Trafford <ttrafford@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Tyler Trafford 2007-08-28 17:56:47 -03:00 committed by Mauro Carvalho Chehab
parent 51b39dfa54
commit 38051450b3
1 changed files with 4 additions and 3 deletions
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7
drivers/media/video/cx25840/cx25840-core.c
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@ -133,7 +133,9 @@ static void init_dll1(struct i2c_client *client)
cx25840_write(client, 0x159, 0x23);
cx25840_write(client, 0x15a, 0x87);
cx25840_write(client, 0x15b, 0x06);
udelay(10);
cx25840_write(client, 0x159, 0xe1);
udelay(10);
cx25840_write(client, 0x15a, 0x86);
cx25840_write(client, 0x159, 0xe0);
cx25840_write(client, 0x159, 0xe1);
@ -147,6 +149,7 @@ static void init_dll2(struct i2c_client *client)
cx25840_write(client, 0x15d, 0xe3);
cx25840_write(client, 0x15e, 0x86);
cx25840_write(client, 0x15f, 0x06);
udelay(10);
cx25840_write(client, 0x15d, 0xe1);
cx25840_write(client, 0x15d, 0xe0);
cx25840_write(client, 0x15d, 0xe1);
@ -165,9 +168,7 @@ static void cx25836_initialize(struct i2c_client *client)
/* 3c. */
cx25840_and_or(client, 0x159, ~0x02, 0x02);
/* 3d. */
/* There should be a 10-us delay here, but since the
i2c bus already has a 10-us delay we don't need to do
anything */
udelay(10);
/* 3e. */
cx25840_and_or(client, 0x159, ~0x02, 0x00);
/* 3f. */