Re: Re: [PATCH] ARM: dts: sun8i: h3: beelink-x2: Add power button

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Hi!

Dne ponedeljek, 08. marec 2021 ob 14:05:06 CET je Maxime Ripard napisal(a):
> Hi
> 
> On Sat, Mar 06, 2021 at 09:36:11PM +0100, Jernej Skrabec wrote:
> > Beelink X2 has power button. Add node for it.
> > 
> > Signed-off-by: Jernej Skrabec <jernej.skrabec@xxxxxxxx>
> > ---
> >  arch/arm/boot/dts/sun8i-h3-beelink-x2.dts | 11 +++++++++++
> >  1 file changed, 11 insertions(+)
> > 
> > diff --git a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts b/arch/arm/boot/dts/
sun8i-h3-beelink-x2.dts
> > index 62b5280ec093..4a2cb072ecf6 100644
> > --- a/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
> > +++ b/arch/arm/boot/dts/sun8i-h3-beelink-x2.dts
> > @@ -111,6 +111,17 @@ spdif_out: spdif-out {
> >  		#sound-dai-cells = <0>;
> >  		compatible = "linux,spdif-dit";
> >  	};
> > +
> > +	r_gpio_keys {
> 
> Underscores are not valid for node names (and will trigger a dtc warning
> when running with W=1).

Unless I'm doing something wrong, I didn't get any warning with "make dtbs 
W=1". In fact many H3 boards have a node with this name and not a single 
warning is produced with this command for underscores (there are other 
warnings though).

Actually, several H3 DT files have nodes like "sound_spdif" or "wifi_pwrseq". It 
seems like warnings are triggered only for children of soc node.

> 
> > +		compatible = "gpio-keys";
> > +
> > +		power {
> > +			label = "power";
> 
> IIRC the node name is used as a fallback when the label isn't there?

Binding doesn't say anything about what happens if label is missing. Driver 
sets generic description "gpio_keys" in such case, which is not something that 
we want.

Best regards,
Jernej

> 
> Maxime
> 





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