linux-kernel - Re: [PATCH v4 3/5] dt/bindings: bcm2835: add binding documentation for bcm2835-aux

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Message-Id: <9D45476C-88E2-4F76-AB55-9D0C7194E29C@martin.sperl.org>
Date:	Fri, 4 Sep 2015 10:26:21 +0200
From:	Martin Sperl <kernel@...tin.sperl.org>
To:	Stephen Warren <swarren@...dotorg.org>
Cc:	Lee Jones <lee@...nel.org>, Russell King <linux@....linux.org.uk>,
	Mark Brown <broonie@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-spi@...r.kernel.org,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Kumar Gala <galak@...eaurora.org>
Subject: Re: [PATCH v4 3/5] dt/bindings: bcm2835: add binding documentation for bcm2835-aux


> On 26.08.2015, at 03:44, Stephen Warren <swarren@...dotorg.org> wrote:
> 
> On 08/24/2015 02:40 AM, kernel@...tin.sperl.org wrote:
> 
>> +Example:
>> +
>> +aux_enable: aux_enable@...e215004 {
>> +	compatible = "bcrm,bcm2835-aux";
>> +	reg = <0x7e215004 0x04>;
> 
> I'd expect that to be <0x7e215000 0x8>;

The reason is that we just handle enable with this driver,
which just requires access to the 0x7e215004 register.

The 0x7e215000 register (interrupt mask) could be used by a
cascaded interrupt-controller, but as the spi and uart drivers
can run with shared interrupts this is not a necessity.

Martin

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