Re: [PATCH V3] gpio: mxc: add power management support

From: Fabio Estevam
Date: Tue Jul 17 2018 - 21:34:50 EST


Hi Anson,

On Tue, Jul 17, 2018 at 10:25 PM, Anson Huang <Anson.Huang@xxxxxxx> wrote:
> GPIO registers could lose context on i.MX7D, when
> enter LPSR mode, the whole SoC will be powered off
> except LPSR domain, GPIO banks will lose context
> in this case, need to restore the context after
> resume from LPSR mode.
>
> This patch adds new compatible string for i.MX7D
> which supports GPIO power off feature in suspend,
> and adds the GPIO save/restore operations in noirq
> suspend/resume phase, since GPIO is fundamental
> module which could be used by other peripherals'
> resume phase.
>
> Signed-off-by: Anson Huang <Anson.Huang@xxxxxxx>

Looks good for me, thanks:

Reviewed-by: Fabio Estevam <fabio.estevam@xxxxxxx>