linux-kernel - Re: [PATCH 01/18] Documentation: Describe the ux500 realated audio related DT nodes

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Date:	Mon, 30 Jul 2012 08:38:49 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
CC:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	STEricsson_nomadik_linux@...t.st.com, linus.walleij@...ricsson.com,
	arnd@...db.de, olalilja@...oo.se, ola.o.lilja@...ricsson.com,
	alsa-devel@...a-project.org, lrg@...com
Subject: Re: [PATCH 01/18] Documentation: Describe the ux500 realated audio
 related DT nodes

On 29/07/12 21:31, Mark Brown wrote:
> On Fri, Jul 27, 2012 at 01:45:45PM +0100, Lee Jones wrote:
>
>> +++ b/Documentation/devicetree/bindings/sound/ux500.txt
>> @@ -0,0 +1,62 @@
>> +* ux500 Audio Driver and ab8500 Audio CODEC
>> +
>> +Required properties:
>> + - compatible:
>> +   - Machine Driver : "stericsson,snd-soc-mop500"
>> +   - CPU-side DAI   : "stericsson,ux500-msp-i2s"
>> +   - DMA (platform) : "stericsson,ux500-pcm"
>> +   - Audio CODEC    : "stericsson,ab8500-codec"
>
> What is this a binding document for?  It looks like the binding for a
> machine driver...

No, it's a binding document for all of the ux500 driver and CODEC 
blocks. Do you really want me to split it all up? I think the only 
component which could be sanely split-out is the ab8500-codec, which 
could (should?) live in [1].

>> +Optional properties:
>> + - reg              : Physical base address and length of the device's registers.
>> + - interrupts       : The interrupt outputs from the device.
>> + - interrupt-parent : The parent interrupt controller.
>> + - <name>-supply    : Phandle to the regulator <name> supply
>
> ...but these don't look anything like machine driver properties.

These properties are relevant for some, but not all of the components 
above, hence why the are listed at 'optional properties'.

[1] Documentation/devicetree/bindings/mfd/ab8500.

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
Linaro.org │ Open source software for ARM SoCs
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