Re: [PATCH 1/2] gpiolib: introduce gpio_set_pullup

From: Igor Grinberg
Date: Sun Nov 27 2011 - 04:35:41 EST


On 11/25/11 17:34, Mark Brown wrote:
> On Fri, Nov 25, 2011 at 03:08:39PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
>
>> +/**
>> + * gpio_set_pullup - sets @pullup for a @gpio
>> + * @gpio: the gpio to set pullup
>> + * @pullup: pullup level
>> + */
>> +int gpio_set_pullup(unsigned gpio, unsigned pullup)
>
> This has some overlap with the pinmux subsystem. We also need
> documentation of what the pullup values mean.

+1

AFAIK, 3 values are there: up, down and highz
Also, IMO, this should have no effect if the GPIO is configured for output.


--
Regards,
Igor.
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