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[media] af9035: override tuner for AVerMedia A835B devices

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Tuner ID set into EEPROM is wrong, which causes driver to select
wrong tuner profile. That leads device non-working. Fix issue by
overriding known bad tuner IDs with suitable default value.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Antti Palosaari 2014-06-12 20:12:24 -03:00 committed by Mauro Carvalho Chehab
parent 60ecb71a72
commit 3ab2512337
1 changed files with 19 additions and 0 deletions
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19
drivers/media/usb/dvb-usb-v2/af9035.c
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@ -799,6 +799,25 @@ static int af9035_read_config(struct dvb_usb_device *d)
addr += 0x10; /* shift for the 2nd tuner params */
}
/*
* These AVerMedia devices has a bad EEPROM content :-(
* Override some wrong values here.
*/
if (le16_to_cpu(d->udev->descriptor.idVendor) == USB_VID_AVERMEDIA) {
switch (le16_to_cpu(d->udev->descriptor.idProduct)) {
case USB_PID_AVERMEDIA_A835B_1835:
case USB_PID_AVERMEDIA_A835B_2835:
case USB_PID_AVERMEDIA_A835B_3835:
dev_info(&d->udev->dev,
"%s: overriding tuner from %02x to %02x\n",
KBUILD_MODNAME, state->af9033_config[0].tuner,
AF9033_TUNER_IT9135_60);
state->af9033_config[0].tuner = AF9033_TUNER_IT9135_60;
break;
}
}
skip_eeprom:
/* get demod clock */
ret = af9035_rd_reg(d, 0x00d800, &tmp);