Re: [PATCH v2 0/2] eeprom: at24: write-protect pin support

[Bartosz Golaszewski <brgl@bgdev.pl>]

2017-12-20 11:21 GMT+01:00 Andy Shevchenko <andy.shevchenko@gmail.com>:
> On Wed, Dec 20, 2017 at 10:26 AM, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>> AT24 EEPROMs have a write-protect pin, which - when pulled high -
>> inhibits writes to the upper quadrant of memory (although it has been
>> observed that on some chips it disables writing to the entire memory
>> range).
>>
>> On some boards, this pin is connected to a GPIO and pulled high by
>> default, which forces the user to manually change its state before
>> writing. On linux this means that we either need to hog the line all
>> the time, or set the GPIO value before writing from outside of the
>> at24 driver.
>>
>> This series adds support for the write-protect pin split into two
>> parts. The first patch extends the relevant binding document, while
>> the second modifies the at24 code to pull the write-protect GPIO
>> low (if present) during write operations.
>>
>
> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
>
> A one totally minor nit: if it possible now to have one line where
> devm_gpiod_get_optional() is called?
> You may ignore this nit anyway.
>

Hi Andy,

I'm afraid I don't understand what you mean here. I do use
devm_gpiod_get_optional() in patch 2/2.

Thanks,
Bartosz