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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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