Re: [PATCH 5/5] platform/x86: dell: Add new dell-wmi-ddv driver

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On 9/13/22 11:30, Limonciello, Mario wrote:
> On 9/13/2022 13:27, Randy Dunlap wrote:
>>
>>
>> On 9/13/22 09:08, Limonciello, Mario wrote:
>>> [Public]
>>>
>>>
>>>
>>>> -----Original Message-----
>>>> From: Armin Wolf <W_Armin@xxxxxx>
>>>> Sent: Tuesday, September 13, 2022 09:41
>>>> To: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>; hdegoede@xxxxxxxxxx;
>>>> markgross@xxxxxxxxxx
>>>> Cc: rafael@xxxxxxxxxx; lenb@xxxxxxxxxx; hmh@xxxxxxxxxx;
>>>> matan@xxxxxxxxxxx; corentin.chary@xxxxxxxxx; jeremy@xxxxxxxxxxxx;
>>>> productdev@xxxxxxxxxxxx; platform-driver-x86@xxxxxxxxxxxxxxx; linux-
>>>> acpi@xxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx
>>>> Subject: Re: [PATCH 5/5] platform/x86: dell: Add new dell-wmi-ddv driver
>>>>
>>>> Am 12.09.22 um 23:56 schrieb Randy Dunlap:
>>>>
>>>>> Hi--
>>>>>
>>>>> On 9/12/22 05:53, Armin Wolf wrote:
>>>>>> diff --git a/drivers/platform/x86/dell/Kconfig
>>>> b/drivers/platform/x86/dell/Kconfig
>>>>>> index 25421e061c47..209e63e347e2 100644
>>>>>> --- a/drivers/platform/x86/dell/Kconfig
>>>>>> +++ b/drivers/platform/x86/dell/Kconfig
>>>>>> @@ -189,6 +189,19 @@ config DELL_WMI_DESCRIPTOR
>>>>>>        default n
>>>>>>        depends on ACPI_WMI
>>>>>>
>>>>>> +config DELL_WMI_DDV
>>>>>> +    tristate "Dell WMI sensors Support"
>>>>>> +    default m
>>>>> You should (try to) justify default m, otherwise just
>>>>> don't have a default for it.
>>>>
>>>> I have chosen default m since many other Dell platform drivers are being
>>>> default m. Since this driver is not essential for normal operation,
>>>> i will drop default m then.
>>>
>>> Actually Dell drivers directory are a bit unique in this regard.  There is a special
>>> top level boolean.  I would suggest to keep it as is.
>>>
>>> Take a look at:
>>> menuconfig X86_PLATFORM_DRIVERS_DELL
>>>
>>
>> So all of those "default m" and "default y" drivers are *needed*
>> as opposed to desirable?
>>
> 
> It was supposed to be a convenience option, it's first introduced in f1e1ea516721d1.
> 
> So if you have a Dell laptop you set the one option and then get defaults for all those modules.

oh well. whatever.

thanks.

>>>>
>>>> Armin Wolf
>>>>
>>>>>> +    depends on ACPI_BATTERY
>>>>>> +    depends on ACPI_WMI
>>>>>> +    help
>>>>>> +      This option adds support for WMI-based sensors like
>>>>>> +      battery temperature sensors found on some Dell notebooks.
>>>>>> +      It also supports reading of the batteries ePPID.
>>>>>> +
>>>>>> +      To compile this drivers as a module, choose M here: the module will
>>>>>> +      be called dell-wmi-ddv.
>>
>> thanks.
> 

-- 
~Randy



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