Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C9D8F21842
MIME-Version: 1.0
In-Reply-To: <53ff5b2b-eba8-8311-64a9-abd4bc72226d@linux.intel.com>
References: <20180410183212.16787-1-jae.hyun.yoo@linux.intel.com>
 <20180410183212.16787-5-jae.hyun.yoo@linux.intel.com> <20180416181035.rcjvt4rlrwaj5yxf@rob-hp-laptop>
 <53ff5b2b-eba8-8311-64a9-abd4bc72226d@linux.intel.com>
From:   Rob Herring <robh@kernel.org>
Date:   Tue, 17 Apr 2018 08:16:52 -0500
Message-ID: <CAL_Jsq+1wC-KhXPeCSNhCeCih6=CatJbyumO51ucD17Rt7qofw@mail.gmail.com>
Subject: Re: [PATCH v3 04/10] Documentations: dt-bindings: Add a document of
 PECI adapter driver for Aspeed AST24xx/25xx SoCs
To:     Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Cc:     Alan Cox <alan@linux.intel.com>, Andrew Jeffery <andrew@aj.id.au>,
        Andrew Lunn <andrew@lunn.ch>,
        Andy Shevchenko <andriy.shevchenko@intel.com>,
        Arnd Bergmann <arnd@arndb.de>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>,
        Fengguang Wu <fengguang.wu@intel.com>,
        Greg KH <gregkh@linuxfoundation.org>,
        Guenter Roeck <linux@roeck-us.net>,
        Haiyue Wang <haiyue.wang@linux.intel.com>,
        James Feist <james.feist@linux.intel.com>,
        Jason M Biils <jason.m.bills@linux.intel.com>,
        Jean Delvare <jdelvare@suse.com>,
        Joel Stanley <joel@jms.id.au>,
        Julia Cartwright <juliac@eso.teric.us>,
        Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
        Milton Miller II <miltonm@us.ibm.com>,
        Pavel Machek <pavel@ucw.cz>,
        Randy Dunlap <rdunlap@infradead.org>,
        Stef van Os <stef.van.os@prodrive-technologies.com>,
        Sumeet R Pawnikar <sumeet.r.pawnikar@intel.com>,
        Vernon Mauery <vernon.mauery@linux.intel.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        linux-doc@vger.kernel.org, devicetree@vger.kernel.org,
        Linux HWMON List <linux-hwmon@vger.kernel.org>,
        "moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE" 
        <linux-arm-kernel@lists.infradead.org>,
        OpenBMC Maillist <openbmc@lists.ozlabs.org>
Content-Type: text/plain; charset="UTF-8"
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

On Mon, Apr 16, 2018 at 6:12 PM, Jae Hyun Yoo
<jae.hyun.yoo@linux.intel.com> wrote:
> On 4/16/2018 11:10 AM, Rob Herring wrote:
>>
>> On Tue, Apr 10, 2018 at 11:32:06AM -0700, Jae Hyun Yoo wrote:
>>>
>>> This commit adds a dt-bindings document of PECI adapter driver for Aspeed
>>> AST24xx/25xx SoCs.

[...]

>>> +- clocks            : Should contain clock source for PECI controller.
>>> +                     Should reference clkin.
>>> +- clock_frequency   : Should contain the operation frequency of PECI
>>> controller
>>> +                     in units of Hz.
>>> +                     187500 ~ 24000000
>>
>>
>> This is the frequency of the bus or used to derive it? It would be
>> better to specify the bus frequency instead and have the driver
>> calculate its internal freq. And then use "bus-frequency" instead.
>>
>
> I agree with you. Actually, it is being used for operation frequency setting
> of PECI controller module in SoC so it's different from the meaning of
> "bus-frequency". I'll change it to "operation-frequency".

No, now you've gone from a standard property name to something custom.
Why do you need to set the frequency in DT if it is not related to the
interface frequency?

Rob