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

From Martin Sperl <kernel@martin.sperl.org>
Newsgroups linux.kernel
Subject Re: [PATCH v4 3/5] dt/bindings: bcm2835: add binding documentation for bcm2835-aux
Date 2015-09-16 07:30 +0200
Message-ID <q9ds6-3oy-5@gated-at.bofh.it> (permalink)
References <q0VC2-2AJ-9@gated-at.bofh.it> <q0VC3-2AJ-27@gated-at.bofh.it> <q1y0F-7VT-1@gated-at.bofh.it> <q4UxJ-51q-41@gated-at.bofh.it> <q9cml-1OQ-1@gated-at.bofh.it>
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> On 16.09.2015, at 06:12, Stephen Warren <swarren@wwwdotorg.org> wrote:
> 
> On 09/04/2015 01:26 AM, Martin Sperl wrote:
>> 
>>> On 26.08.2015, at 03:44, Stephen Warren <swarren@wwwdotorg.org> wrote:
>>> 
>>> On 08/24/2015 02:40 AM, kernel@martin.sperl.org wrote:
>>> 
>>>> +Example:
>>>> +
>>>> +aux_enable: aux_enable@0x7e215004 {
>>>> +	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.
> 
> The DT is supposed to describe the HW, not any particular SW's use of
> the HW. If the HW block has 2 registers, so must the DT reg property.

Please look at V6 of the patch-series, that uses Erics clock-patch.
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Re: [PATCH v4 3/5] dt/bindings: bcm2835: add binding documentation  for bcm2835-aux Stephen Warren <swarren@wwwdotorg.org> - 2015-09-16 06:20 +0200
  Re: [PATCH v4 3/5] dt/bindings: bcm2835: add binding documentation for bcm2835-aux Martin Sperl <kernel@martin.sperl.org> - 2015-09-16 07:30 +0200

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