[PATCH] pinctrl: establish pull-up/pull-down terminology

[Lothar Waßmann]

Linus Walleij writes:
> From: Linus Walleij <linus.walleij at linaro.org>
> 
> It is counter-intuitive to have "0" mean disable in a boolean
> manner for electronic properties of pins such as pull-up and
> pull-down. Therefore, define that a pull-up/pull-down argument
> of 0 to such a generic option means that the pin is
> short-circuited to VDD or GROUND. Pull disablement shall be
> done using PIN_CONFIG_BIAS_DISABLE.
> 
> Cc: Heiko Stübner <heiko at sntech.de>
> Cc: James Hogan <james.hogan at imgtec.com>
> Cc: Laurent Pinchart <laurent.pinchart at ideasonboard.com>
> Signed-off-by: Linus Walleij <linus.walleij at linaro.org>
> ---
>  include/linux/pinctrl/pinconf-generic.h | 13 +++++++------
>  1 file changed, 7 insertions(+), 6 deletions(-)
> 
> diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
> index d414a77..67780f5 100644
> --- a/include/linux/pinctrl/pinconf-generic.h
> +++ b/include/linux/pinctrl/pinconf-generic.h
> @@ -36,14 +36,15 @@
>   *	tristate. The argument is ignored.
>   * @PIN_CONFIG_BIAS_PULL_UP: the pin will be pulled up (usually with high
>   *	impedance to VDD). If the argument is != 0 pull-up is enabled,
> - *	if it is 0, pull-up is disabled.
> + *	if it is 0, pull-up it total, i.e. the pin is connected to VDD.
                            ^^
'is'?



Lothar Waßmann
-- 
___________________________________________________________

Ka-Ro electronics GmbH | Pascalstraße 22 | D - 52076 Aachen
Phone: +49 2408 1402-0 | Fax: +49 2408 1402-10
Geschäftsführer: Matthias Kaussen
Handelsregistereintrag: Amtsgericht Aachen, HRB 4996

www.karo-electronics.de | info at karo-electronics.de
___________________________________________________________