Re: [PATCH v3] hisi_lpc: Use acpi_dev_for_each_child()

[John Garry <john.garry@huawei.com>]

On 05/07/2022 10:39, Andy Shevchenko wrote:
> On Tue, Jul 5, 2022 at 11:38 AM Andy Shevchenko
> <andy.shevchenko@gmail.com>  wrote:
>> On Tue, Jul 5, 2022 at 10:37 AM John Garry<john.garry@huawei.com>  wrote:
>>> On 04/07/2022 20:02, Rafael J. Wysocki wrote:
>> ...
>>
>>> I gave these a quick test on my board and they look fine.
>>>
>>> Acked-by: John Garry<john.garry@huawei.com>
>> John, I believe now you may send a formal clean up to convert to platform_device
> Hit Enter too early:-)
> 
> ...to platform_device_register_full().

Sure, I can look at that now. But I just found where we previously 
mentioned the possibility of factoring out some of the ACPI platform 
device creation code:

https://lore.kernel.org/linux-acpi/CAHp75VfOa5pN4MKT-aQmWBwPGWsOaQupyfrN-weWwfR3vMLtuA@mail.gmail.com/

There is actually still a comment in the hisi_lpc driver - I should have 
checked there first :)

So my impression is that the hisi_lpc code is almost the same in 
acpi_create_platform_device(), apart from we need do the resource fixup 
in hisi_lpc_acpi_set_io_res().

So we could factor out by dividing acpi_create_platform_device() into 2x 
parts: resource get and then platform dev create. But that does not seem 
wise as we have 2x parts which don't make sense on their own. Or else 
pass a fixup callback into acpi_create_platform_device(). Any other 
ideas if we want to go this way?

Thanks,
John