netdev - Re: [PATCH 2/2] Convert smsc911x to use ACPI as well as DT

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Date:	Wed, 23 Sep 2015 22:51:54 +0200
From:	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>
To:	David Woodhouse <dwmw2@...radead.org>,
	Jeremy Linton <jeremy.linton@....com>,
	linux-arm-kernel@...ts.infradead.org
Cc:	netdev@...r.kernel.org, steve.glendinning@...well.net,
	grant.likely@...aro.org, Suravee.Suthikulpanit@....com,
	Catalin.Marinas@....com
Subject: Re: [PATCH 2/2] Convert smsc911x to use ACPI as well as DT

On 9/23/2015 8:41 PM, David Woodhouse wrote:
> On Wed, 2015-08-12 at 17:06 -0500, Jeremy Linton wrote:
>>   
>> +static const struct acpi_device_id smsc911x_acpi_match[] = {
>> +       { "ARMH9118", 0 },
>> +       { }
>> +};
>> +MODULE_DEVICE_TABLE(acpi, smsc911x_acpi_match);
>> +
>>   static struct platform_driver smsc911x_driver = {
>>          .probe = smsc911x_drv_probe,
>>          .remove = smsc911x_drv_remove,
>> @@ -2661,6 +2656,7 @@ static struct platform_driver smsc911x_driver =
>> {
>>                  .name   = SMSC_CHIPNAME,
>>                  .pm     = SMSC911X_PM_OPS,
>>                  .of_match_table = of_match_ptr(smsc911x_dt_ids),
>> +               .acpi_match_table = ACPI_PTR(smsc911x_acpi_match),
>>          },
>>   };
> Hm, surely you shouldn't need this part? If the ACPI device has a HID
> of PRP0001, and an appropriate "compatible" property, then it ought to
> be loaded anyway. If that doesn't work, we should fix that.

But if the device ID is assigned already, why would it hurt to actually 
use it?

Thanks,
Rafael

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