[media] stk1160: Check whether to use AC97 codec

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Some STK1160-based devices use the chip's internal 8-bit ADC. This is
configured through a strap pin. The value of this and other pins can be
read through the POSVA register. If the internal ADC is used, or if
audio is disabled altogether, there's no point trying to setup the AC97
codec.

Signed-off-by: Marcel Hasler <mahasler@gmail.com>
Acked-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

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Marcel Hasler 2016-12-15 20:13:34 -02:00 • committed by Mauro Carvalho Chehab

parent e36e6b5f26

commit 1dc7df4d3d

3 changed files with 35 additions and 2 deletions

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26

drivers/media/usb/stk1160/stk1160-ac97.c

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3

drivers/media/usb/stk1160/stk1160-core.c

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8

drivers/media/usb/stk1160/stk1160-reg.h

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