[PATCH 2/4] arm64: dts: airoha: Add EN7581 clock node

[Lorenzo Bianconi]

> Il 04/04/24 10:57, Lorenzo Bianconi ha scritto:
> > > Il 03/04/24 18:20, Lorenzo Bianconi ha scritto:
> > > > Introduce the Airoha EN7581 clock node in Airoha EN7581 dtsi
> > > > 
> > > > Tested-by: Zhengping Zhang <zhengping.zhang at airoha.com>
> > > > Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
> > > > ---
> > > >    arch/arm64/boot/dts/airoha/en7581.dtsi | 9 +++++++++
> > > >    1 file changed, 9 insertions(+)
> > > > 
> > > > diff --git a/arch/arm64/boot/dts/airoha/en7581.dtsi b/arch/arm64/boot/dts/airoha/en7581.dtsi
> > > > index 55eb1762fb11..a1daaaef0de0 100644
> > > > --- a/arch/arm64/boot/dts/airoha/en7581.dtsi
> > > > +++ b/arch/arm64/boot/dts/airoha/en7581.dtsi
> > > > @@ -2,6 +2,7 @@
> > > >    #include <dt-bindings/interrupt-controller/irq.h>
> > > >    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > +#include <dt-bindings/clock/en7523-clk.h>
> > > >    / {
> > > >    	interrupt-parent = <&gic>;
> > > > @@ -150,5 +151,13 @@ uart1: serial at 1fbf0000 {
> > > >    			interrupts = <GIC_SPI 18 IRQ_TYPE_LEVEL_HIGH>;
> > > >    			clock-frequency = <1843200>;
> > > >    		};
> > > > +
> > > > +		scu: system-controller at 1fa20000 {
> > > 
> > > Uhm, why is this not a clock-controller but a system-controller?
> > 
> > I used the same approach used for en7523.dtsi. I guess it is done
> > that way because the registers come from scu (system control unit)
> > regmap, but I guess we can use clock-controller instead.
> > 
> 
> Yeah, comes from there but you're actually defining a node for a clock-controller,
> not a system-controller... makes sense to define this as
> 
> 	scuclk: clock-controller at 1fa20000
> 
> ...or something along that line (for the phandle) so that, if another scu related
> node appears for whatever reason, we distinguish between scuxyz and scuclk.

ack, I agree. I will fix it.

Regards,
Lorenzo

> 
> Cheers
> 
> > Regards,
> > Lorenzo
> > 
> > > 
> > > Cheers,
> > > Angelo
> > > 
> > > > +			compatible = "airoha,en7581-scu";
> > > > +			reg = <0x0 0x1fa20000 0x0 0x400>,
> > > > +			      <0x0 0x1fb00000 0x0 0x1000>,
> > > > +			      <0x0 0x1fbe3400 0x0 0xfc>;
> > > > +			#clock-cells = <1>;
> > > > +		};
> > > >    	};
> > > >    };
> > > 
> > > 
> > > 
> 
> 
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