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SubjectRe: [PATCH v5 2/2] usb: typec: add driver for Intel Whiskey Cove PMIC USB Type-C PHY
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On 08/17/2016 11:33 PM, Felipe Balbi wrote:
>
> Hi,
>
> Peter Chen <hzpeterchen@gmail.com> writes:
>> On Wed, Aug 17, 2016 at 03:53:24PM +0300, Felipe Balbi wrote:
>>>
>>> Hi,
>>>
>>> Heikki Krogerus <heikki.krogerus@linux.intel.com> writes:
>>>
>>> [...]
>>>
>>>> +static struct platform_driver wcove_typec_driver = {
>>>> + .driver = {
>>>> + .name = "bxt_wcove_usbc",
>>>> + },
>>>> + .probe = wcove_typec_probe,
>>>> + .remove = wcove_typec_remove,
>>>> +};
>>>> +
>>>> +module_platform_driver(wcove_typec_driver);
>>>> +
>>>> +MODULE_AUTHOR("Intel Corporation");
>>>> +MODULE_LICENSE("GPL v2");
>>>> +MODULE_DESCRIPTION("WhiskeyCove PMIC USB Type-C PHY driver");
>>>
>>> you need to add:
>>>
>>> MODULE_ALIAS("platform:bxt_wcove_usbc");
>>>
>>> otherwise this won't probe() automagically.
>>>
>>
>> What do you mean, Felipe? If there is a platform device named
>> "bxt_wcove_usbc", why it will not be probed?
>
> IIRC default module alias is added based on file name, not
> platform_driver name, so this would be
> MODULE_ALIAS("platform:typec_wcove") by default... I could be wrong,
> really don't remember the details of that now.
>
AFAIK one either needs MODULE_ALIAS or MODULE_DEVICE_TABLE for platform
device autoloading. I have seen many patches along the line of "Add missing
MODULE_ALIAS", so I'd be a bit surprised if that was no longer needed.

Guenter

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