linux-kernel - Re: [PATCH v2 1/3] reset: hisilicon: Add media reset controller binding

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Message-ID: <CAGd==04rT-f1gi0qBTkW1jLXGe_eJ38_cKFcL+TQAfkee_oLLw@mail.gmail.com>
Date:	Fri, 17 Jun 2016 09:29:34 +0800
From:	Xinliang Liu <xinliang.liu@...aro.org>
To:	Philipp Zabel <p.zabel@...gutronix.de>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	Xu Wei <xuwei5@...ilicon.com>,
	Feng Chen <puck.chen@...ilicon.com>,
	Xia Qing <saberlily.xia@...ilicon.com>,
	XinWei Kong <kong.kongxinwei@...ilicon.com>,
	Guodong Xu <guodong.xu@...aro.org>
Subject: Re: [PATCH v2 1/3] reset: hisilicon: Add media reset controller binding

Hi,

On 16 June 2016 at 18:46, Philipp Zabel <p.zabel@...gutronix.de> wrote:
> Am Donnerstag, den 16.06.2016, 18:29 +0800 schrieb Xinliang Liu:
>> Add compatible for media reset controller.
>>
>> Signed-off-by: Xinliang Liu <xinliang.liu@...aro.org>
>> ---
>>  Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt | 4 +++-
>>  1 file changed, 3 insertions(+), 1 deletion(-)
>>
>> diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
>> index e0b185a944ba..c25da39df707 100644
>> --- a/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
>> +++ b/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
>> @@ -8,7 +8,9 @@ The reset controller registers are part of the system-ctl block on
>>  hi6220 SoC.
>>
>>  Required properties:
>> -- compatible: may be "hisilicon,hi6220-sysctrl"
>> +- compatible: should be one of the following:
>> +  - "hisilicon,hi6220-sysctrl", "syscon" : For peripheral reset controller.
>> +  - "hisilicon,hi6220-mediactrl", "syscon" : For media reset controller.
>
> This does more than the commit message says. Why do you add syscon here?
> Do the sysctrl and mediactrl register ranges have bits other than reset
> controls that will be used by other drivers via the syscon mechanism?

yes, that's right. Actually, ahead of the Required properties part,
there is the sentence description "The reset controller registers are
part of the system-ctl block"
has said that reset bits are inside system controller.

Thanks,
-xinliang

>
> regards
> Philipp
>