On Tue, 2017-03-14 at 11:07 +0100, Stefan Wahren wrote:

Am 14.03.2017 um 09:47 schrieb Michael Zoran:

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On Tue, 2017-03-14 at 09:05 +0100, Stefan Wahren wrote:

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AFAIK the Raspberry Pi 3 uses pin 40 and 41.

I did all my testing on the RPI 3, so I'm almost certain it's correct.  It matches with the schematic and it matches with what the downstream tree uses for the firmware based driver(dummy claiming of pins).

The reduced schematic that i have name the pins as AUD_PWM0 and AUD_PWM1, which says nothing about the actual pins. Do you have a better document?

In the firmware dt-blob.dts [1] the Raspberry Pi 3 uses pin 40 and 41.

[1] - https://github.com/raspberrypi/firmware/blob/master/extra/dt-bl ob.dts

Here are the references I used:

https://www.raspberrypi.org/documentation/hardware/raspberrypi/schemati cs/Raspberry-Pi-Rev-2.0-Model-AB-Schematics.pdf

https://github.com/raspberrypi/linux/blob/rpi-4.9.y/arch/arm/boot/dts/o verlays/pwm-2chan-overlay.dts

But looking at the downstream specific RPI 3 device tree, maybe it should be 40,41 instead of 40,45.

The source code and tree I submitted does work. But I agree this is something that needs to be fixed.