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From: Michael Zoran <mzoran@crowfest.net>
To: Stefan Wahren <stefan.wahren@i2se.com>,
	perex@perex.cz, tiwai@suse.com, robh+dt@kernel.org,
	mark.rutland@arm.com, eric@anholt.net,
	alsa-devel@alsa-project.org,
	linux-rpi-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 4/4] dts: bcm283x.dtsi: Add analog audio/headphone jack for bcm2835
Date: Tue, 14 Mar 2017 03:18:44 -0700	[thread overview]
Message-ID: <1489486724.656.9.camel@crowfest.net> (raw)
In-Reply-To: <952dc3e0-a01a-bb21-78bd-d3639251c84a@i2se.com>

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.


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  reply	other threads:[~2017-03-14 10:18 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-12  6:38 [PATCH 1/4] dt-bindings: Document the dmas and dma-names properties for bcm2835-analog-audio Michael Zoran
     [not found] ` <20170312063820.19313-1-mzoran-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-12  6:38   ` [PATCH 2/4] sound: bcm2835-analog-audio: Add driver for bcm2835(Raspberry PI) headphone jack Michael Zoran
2017-03-16  0:01     ` Eric Anholt
2017-03-12  6:38   ` [PATCH 3/4] sound: arm: Add build system for bcm2835-analog-audio driver Michael Zoran
     [not found]     ` <20170312063820.19313-3-mzoran-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-14  7:15       ` [alsa-devel] " kbuild test robot
     [not found]         ` <201703141503.gyuLu0Kr%fengguang.wu-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-03-14  8:58           ` Michael Zoran
     [not found]             ` <1489481899.656.5.camel-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-14  9:13               ` Stefan Wahren
     [not found]                 ` <5a437138-bf9c-1e48-9fa6-82fac9b6e54c-eS4NqCHxEME@public.gmane.org>
2017-03-14  9:53                   ` Michael Zoran
2017-03-12  6:38   ` [PATCH 4/4] dts: bcm283x.dtsi: Add analog audio/headphone jack for bcm2835 Michael Zoran
     [not found]     ` <20170312063820.19313-4-mzoran-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-14  8:05       ` Stefan Wahren
     [not found]         ` <a5ae562f-6843-f137-6470-36c53cfd1799-eS4NqCHxEME@public.gmane.org>
2017-03-14  8:47           ` Michael Zoran
     [not found]             ` <1489481279.656.1.camel-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-14 10:07               ` Stefan Wahren
2017-03-14 10:18                 ` Michael Zoran [this message]
2017-03-20 16:50 ` [PATCH 1/4] dt-bindings: Document the dmas and dma-names properties for bcm2835-analog-audio Rob Herring
2017-03-20 17:07   ` [alsa-devel] " Michael Zoran
     [not found]     ` <1490029654.11105.7.camel-O+n0w2l5AFbk1uMJSBkQmQ@public.gmane.org>
2017-03-21 12:53       ` Rob Herring
2017-03-21 13:30         ` Michael Zoran
2017-03-21 17:59           ` Rob Herring

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