Re: Nokia N900 - audio TPA6130A2 problems

Ivaylo Dimitrov
2016-03-17T13:11:24Z

Hi,

On 17.03.2016 15:01, Pali Rohár wrote:
> On Thursday 17 March 2016 09:56:22 Ivaylo Dimitrov wrote:
>> Hi,
>>
>
> Is camera on same bus as tpa? Maybe this is reason why camera is
> non-functional too?
>

It doesn't matter, all the i2c busses are missing the pullups.

>> Will fix the board DTS file later on an will report
>
> Thanks for investigation! Is that problem in both DTS and also legacy
> board code?
>

I guess legacy board code does not set i2c pull-ups either, as we
have that problem since the beginning of time. Anyway, let me first
check if enabling pullups really solves the issue, I hope to test that
in a couple of hours when I am back home.

Or you can do it yourself, it is just a matter of replacing PIN_INPUT
with PIN_INPUT_PULLUP in
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/omap3-n900.dts?id=refs/tags/v4.5#n199
for all the 3 ic2 busses

Regards,
Ivo