Re: [PATCH] gpio: add gpio_add_lookup_tables() to add several tables at once

[Linus Walleij]

On Wed, Aug 2, 2017 at 2:06 PM, Andy Shevchenko
<andriy.shevchenko@xxxxxxxxxxxxxxx> wrote:
> On Tue, 2017-08-01 at 12:24 -0700, Dmitry Torokhov wrote:
>> On Wed, Jul 26, 2017 at 01:21:37PM +0300, Andy Shevchenko wrote:
>> > On Tue, 2017-07-25 at 13:58 -0700, Dmitry Torokhov wrote:
>> > > When converting legacy board to use gpiod API() there migt be
>> > > several
>> > > lookup tables in board file, let's provide a way to register them
>> > > all
>> > > at
>> > > once.
>> >
>> > Looking into the code which is using several GPIO look up tables I
>> > noticed that the pattern often something like
>> >
>> >
>> > gpiod_add_lookup_table(x_tbl);
>> > platform_device_register(x_dev);
>> >
>> > ...
>> >
>> > gpiod_add_lookup_table(y_tbl);
>> > platform_device_register(y_dev);
>> >
>> > which looks also logical.
>> >
>> > So, I have no strong opinion here, though it would be nice to have
>> > an
>> > example where it makes sense.
>>
>> Here is an example. It actually does not have multiple GPIO tables,
>> but
>> it allows to keep the structure of init sequence for the board, which
>> relies on having series of arrays conditionally populated with devices
>> and other data that need to be registered.
>
> I see your point. Okay, no objections from me.
>
> Please, add a stub for !GPIOLIB case.
>
> After addressing it,
>
> Reviewed-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>

OK I wait for the stub-inclusive patch.

Yours,
Linus Walleij