On Tue, 2017-03-14 at 11:07 +0100, Stefan Wahren wrote: > Am 14.03.2017 um 09:47 schrieb Michael Zoran: > > On Tue, 2017-03-14 at 09:05 +0100, Stefan Wahren wrote: > > > > > 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. _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
