Re: [PATCH 5/7] ARM: meson: dts: add basic Meson/Meson6/Meson6-atv1200 DTSI/DTS

[Carlo Caione <carlo@caione.org>]

On Mon, Aug 18, 2014 at 05:17:44PM +0100, Mark Rutland wrote:
> On Sun, Aug 17, 2014 at 11:49:52AM +0100, Carlo Caione wrote:

<cut>

> > +	soc@c8100000 {
> 
> What's the unit-address for? This node doesn't have a reg or compatible.

I used it to indicate the starting address of the memory mapped region.

> > +		compatible = "simple-bus";
> > +		#address-cells = <1>;
> > +		#size-cells = <1>;
> > +		ranges;
> > +
> > +		uart_AO: serial@c81004c0 {
> > +			compatible = "amlogic,meson-uart";
> > +			reg = <0xc81004c0 0x14>;
> > +			interrupts = <0 90 1>;
> > +			clocks = <&clk81>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart_A: serial@c81084c0 {
> > +			compatible = "amlogic,meson-uart";
> > +			reg = <0xc81084c0 0x14>;
> > +			interrupts = <0 90 1>;
> > +			clocks = <&clk81>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart_B: serial@c81084dc {
> > +			compatible = "amlogic,meson-uart";
> > +			reg = <0xc81084dc 0x14>;
> > +			interrupts = <0 90 1>;
> > +			clocks = <&clk81>;
> > +			status = "disabled";
> > +		};
> > +
> > +		uart_C: serial@c8108700 {
> > +			compatible = "amlogic,meson-uart";
> > +			reg = <0xc8108700 0x14>;
> > +			interrupts = <0 90 1>;
> > +			clocks = <&clk81>;
> > +			status = "disabled";
> 
> I guess these are disabled because they aren't always wired up?

Yes

<cut>

> > +	clocks {
> > +		#address-cells = <1>;
> > +
> > +		clk81: clk@0 {
> > +			#clock-cells = <0>;
> > +			compatible = "fixed-clock";
> > +			clock-frequency = <200000000>;
> > +		};
> > +	};
> 
> There is really no need to put clocks in a container.
> 
> Just put them under the root, and drop the unit-address.

I'll do, thanks.

-- 
Carlo Caione