[PATCH v2] pinctrl: rockchip: add support the get_direction

[Heiko Stuebner]

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 at rock-chips.com>
> Signed-off-by: Caesar Wang <wxt at rock-chips.com>

Reviewed-by: Heiko Stuebner <heiko at sntech.de>