linux-kernel - Re: [PATCH 2/3 v3] Documentation: dt: add the CSR atlas7 hwspinlock bindings document

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Date:	Mon, 25 May 2015 13:33:05 +0800
From:	Barry Song <21cnbao@...il.com>
To:	Suman Anna <s-anna@...com>
Cc:	Ohad Ben-Cohen <ohad@...ery.com>,
	LKML <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	DL-SHA-WorkGroupLinux <workgroup.linux@....com>,
	Wei Chen <wei.chen@....com>, Bjorn Andersson <bjorn@...o.se>,
	Barry Song <Baohua.Song@....com>
Subject: Re: [PATCH 2/3 v3] Documentation: dt: add the CSR atlas7 hwspinlock
 bindings document

2015-05-23 6:44 GMT+08:00 Suman Anna <s-anna@...com>:
> Hi Barry,
>
> On 05/19/2015 01:41 AM, Barry Song wrote:
>> From: Wei Chen <wei.chen@....com>
>>
>> The Hardware Spinlock device on atlas7 provides hardware assistance
>> for synchronization between the multiple processors in the system
>> (dual Cortex-A7, CAN bus Cortex-M3 and audio DSP).
>> This patch adds the DT bindings information for this hwspinlock
>> module.
>>
>> Cc: Suman Anna <s-anna@...com>
>> Cc: Bjorn Andersson <bjorn@...o.se>
>> Signed-off-by: Wei Chen <wei.chen@....com>
>> Signed-off-by: Barry Song <Baohua.Song@....com>
>> ---
>>  .../devicetree/bindings/hwlock/sirf,hwspinlock.txt | 25 ++++++++++++++++++++++
>>  1 file changed, 25 insertions(+)
>>  create mode 100644 Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
>>
>> diff --git a/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
>> new file mode 100644
>> index 0000000..cc6d351
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/hwlock/sirf,hwspinlock.txt
>> @@ -0,0 +1,25 @@
>> +SIRF Hardware spinlock device Binding
>> +-----------------------------------------------
>> +
>> +Required properties :
>> +- compatible : shall contain only one of the following:
>> +     "sirf,hwspinlock"
>> +
>> +- reg : the register address of hwspinlock
>
> Also suggest to document the value to be used for #hwlock-cells, the
> generic hwlock binding does not mention that.

do you think whether we can put one line like?

#hwlock-cells : <1>, as required by generic hwspinlock binding.
>
>> +
>> +Please look at the generic hwlock binding for usage information for consumers,
>> +"Documentation/devicetree/bindings/hwlock/hwlock.txt"
>> +
>
> regards
> Suman
>

-barry
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