[PATCH v2 2/4] ARM: rockchip: add suspend and resume for RK3288

Doug Anderson dianders at chromium.org
Fri Oct 17 17:57:20 PDT 2014


Chris,

On Fri, Oct 17, 2014 at 1:47 PM,  <zyw at rock-chips.com> wrote:
> From: Chris Zhong <zyw at rock-chips.com>
>
> It's a basic version of suspend and resume for rockchip, it only support RK3288
> now.
>
> Signed-off-by: Tony Xie <xxx at rock-chips.com>
> Signed-off-by: Chris Zhong <zyw at rock-chips.com>
>
> ---
>
> Changes in v2:
> - add the regulator calls in prepare and finish.
> - add the pinmux of gpio6_c6 save and restore

I'm a bit out of time to do a real review right now, but I would have
expected that the pinmux stuff:

* was saved and restored in the pinmux driver.

* was in a separate patch, before this one in the series.


The pinmux driver should have callbacks for saving and restoring
pinmux state, so you should use those.  Maybe exynos_pinctrl_suspend()
is an example, though you only need to save one pin.  You should
probably also explain that only gpio6_c6 needs to be saved and
restored since the MaskROM clobbers it upon resume.

-Doug



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