Re: [PATCH v2 1/4] omapdrm: fix compatible string for td028ttec1

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Hi Andrew,

> Am 16.11.2017 um 16:53 schrieb Andrew F. Davis <afd@xxxxxx>:
> 
> On 11/16/2017 07:43 AM, H. Nikolaus Schaller wrote:
>> 
>>> Am 16.11.2017 um 13:32 schrieb Tomi Valkeinen <tomi.valkeinen@xxxxxx>:
>>> 
>>> On 16/11/17 10:50, H. Nikolaus Schaller wrote:
>>>> The vendor name was "toppoly" but other panels and the vendor list
>>>> have defined it as "tpo". So let's fix it in driver and bindings.
>>>> 
>>>> Signed-off-by: H. Nikolaus Schaller <hns@xxxxxxxxxxxxx>
>>>> ---
>>> 
>>> 
>>>> -MODULE_ALIAS("spi:toppoly,td028ttec1");
>>>> +MODULE_ALIAS("spi:tpo,td028ttec1");
>>> 
>>> Doesn't this mean that the module won't load if you have old bindings?
>> 
>> Hm.
>> 
>> Well, I think it can load but doesn't automatically from DT strings which might
>> be unexpected.
>> 
>>> Can't we have two module aliases?
>> 
>> I think we can. Just a random example:
>> https://elixir.free-electrons.com/linux/latest/source/drivers/w1/slaves/w1_therm.c#L754
>> 
>> So we should keep both.
> 
> Even better would be to drop both MODULE_ALIAS and let the
> MODULE_DEVICE_TABLE macro define them for your from the SPI id table.

Why would that be better?

As far as I see it will need more code and changes than adding one line of
MODULE_ALIAS.

> Although it doesn't look like this driver has an SPI id table, you
> should probably add one, I be interested to see if this module is always
> being matched through the "spi" or the "of" alias..

Could you please propose how that code should look like, so that I can test?

BR and thanks,
Nikolaus Schaller

> 
>> 
>> Should I submit a new version?
>> 
>> BR,
>> Nikolaus
>> 
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