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V4L/DVB (10250): cx25840: fix regression: fw not loaded on first use 

With the conversion to v4l2_subdev one bit of code was accidentally dropped:
on receiving the first command the driver has to load the fw. A new init()
command was introduced to do that explicitly for bridge drivers that are
converted to use v4l2_subdev, but old drivers that are not yet converted
no longer worked.

This patch fixes this regression for these old drivers.

Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2009-01-15 05:37:14 -03:00 committed by Mauro Carvalho Chehab
parent cf8e193a48
commit ba390f0055
1 changed files with 8 additions and 0 deletions
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8
drivers/media/video/cx25840/cx25840-core.c
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@ -1382,6 +1382,14 @@ static int cx25840_log_status(struct v4l2_subdev *sd)
static int cx25840_command(struct i2c_client *client, unsigned cmd, void *arg)
{
/* ignore this command */
if (cmd == TUNER_SET_TYPE_ADDR)
return 0;
/* Old-style drivers rely on initialization on first use, so
call the init whenever a command is issued to this driver.
New-style drivers using v4l2_subdev should call init explicitly. */
cx25840_init(i2c_get_clientdata(client), 0);
return v4l2_subdev_command(i2c_get_clientdata(client), cmd, arg);
}