linux-kernel - Re: [PATCH v2 1/3] pinctrl: sunxi: Fix PIN_CONFIG_BIAS_PULL

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Date:   Fri, 11 Nov 2016 09:34:37 +0100
From:   Maxime Ripard <maxime.ripard@...e-electrons.com>
To:     Chen-Yu Tsai <wens@...e.org>
Cc:     Linus Walleij <linus.walleij@...aro.org>,
        linux-gpio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-sunxi@...glegroups.com
Subject: Re: [PATCH v2 1/3] pinctrl: sunxi: Fix
 PIN_CONFIG_BIAS_PULL_{DOWN,UP} argument

On Fri, Nov 11, 2016 at 10:44:53AM +0800, Chen-Yu Tsai wrote:
> According to pinconf-generic.h, the argument for
> PIN_CONFIG_BIAS_PULL_{DOWN,UP} is non-zero if the bias is enabled
> with a pull up/down resistor, zero if it is directly connected
> to VDD or ground.
> 
> Since Allwinner hardware uses a weak pull resistor internally,
> the argument should be 1.
> 
> Signed-off-by: Chen-Yu Tsai <wens@...e.org>

Acked-by: Maxime Ripard <maxime.ripard@...e-electrons.com>

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

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