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Message-ID: <4521590.yHkfr458Oq@phil>
Date: Fri, 01 Apr 2016 02:21:07 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: Caesar Wang <wxt@...k-chips.com>
Cc: linus.walleij@...aro.org, linux-gpio@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org
Subject: Re: [PATCH v2] pinctrl: rockchip: add support the get_direction
Am Dienstag, 15. März 2016, 15:55:45 schrieb Caesar Wang:
> This patch adds the get_direction to support the gpio
> interface.
>
> The gpio direction is not used on rockchip platform when use the gpio
> debugfs.
>
> Tested on kylin board. (RK3036 SoCs)
> The repro steps:
> $/sys/class/gpio/
> echo 53 > export
> $/sys/class/gpio/gpio53# cat direction
> in
> In general, the gpio53 should be out value, but the direction is the
> default value 'in', since the get_direction didn't supported in rockchip
> pinctrl.
>
> So, we should add this patch to support it.
>
> Reported-by: Jeffy Chen <jeffy.chen@...k-chips.com>
> Signed-off-by: Caesar Wang <wxt@...k-chips.com>
Reviewed-by: Heiko Stuebner <heiko@...ech.de>
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