[PATCH v2] ARM: dts: sun8i: Adjust power key nodes

Jernej Škrabec jernej.skrabec at gmail.com
Mon Nov 29 09:29:01 PST 2021


Dne ponedeljek, 29. november 2021 ob 18:16:31 CET je Chen-Yu Tsai napisal(a):
> On Tue, Nov 30, 2021 at 12:55 AM Jernej Skrabec
> <jernej.skrabec at gmail.com> wrote:
> >
> > Several H3 and one H2+ board have power key nodes, which are slightly
> > off. Some are missing wakeup-source property and some have BTN_0 code
> > assigned instead of KEY_POWER.
> 
> It might have been that after shutdown there was really no way to
> "power on" the board with these GPIO power keys, so we didn't use
> KEY_POWER for them?

KEY_POWER is actually processed by userspace, so it would still make sense to 
power down board if power key is pressed. Correct me if I'm wrong, but in 
combination with wfi it could work before SCP FW was available?

> 
> > Adjust them, so they can function as intended by designer.
> >
> > Co-developed-by: Michael Klein <michael at fossekall.de>
> > Signed-off-by: Michael Klein <michael at fossekall.de>
> > Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>
> 
> Acked-by: Chen-Yu Tsai <wens at csie.org>
> 

Thanks!

Best regards,
Jernej





More information about the linux-arm-kernel mailing list