[PATCH v3 04/10] Documentations: dt-bindings: Add a document of PECI adapter driver for Aspeed AST24xx/25xx SoCs
Rob Herring
robh at kernel.org
Tue Apr 17 23:16:52 AEST 2018
On Mon, Apr 16, 2018 at 6:12 PM, Jae Hyun Yoo
<jae.hyun.yoo at 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
More information about the openbmc
mailing list