Re: [PATCH v4 1/6] dt-bindings: ap806: add the cluster clock node in the syscon file

Gregory CLEMENT
2019-03-28T17:25:27Z

Hi Rob,

On jeu., mars 28 2019, Rob Herring <robh@kernel.org> wrote:

> On Mon, Mar 25, 2019 at 01:47:58PM +0100, Gregory CLEMENT wrote:
>> Document the device tree binding for the cluster clock controllers found
>> in the Armada 7K/8K SoCs.
>>
>> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
>> ---
>> .../arm/marvell/ap806-system-controller.txt | 25 +++++++++++++++++++
>> 1 file changed, 25 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
>> index 7b8b8eb0191f..ceeba18b4ac3 100644
>> --- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
>> +++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
>> @@ -143,3 +143,28 @@ ap_syscon1: system-controller@6f8000 {
>> #thermal-sensor-cells = <1>;
>> };
>> };
>> +
>> +Cluster clocks:
>> +---------------
>> +
>> +Device Tree Clock bindings for cluster clock of AP806 Marvell. Each
>> +cluster contain up to 2 CPUs running at the same frequency.
>> +
>> +Required properties:
>> +- compatible: must be "marvell,ap806-cpu-clock";
>> +- #clock-cells : should be set to 1.
>> +- clocks : shall be the input parents clock phandle for the clock.
>> +
>> +Optional property:
>> + - reg: register range associated the cluser clocks
>
> reg can be optional to use, but should either be there or not.

OK so let's remove it!

Thanks,

Grégory

>
> And there's a typo.
>
>> +
>> +ap_syscon1: system-controller@6f8000 {
>> + compatible = "syscon", "simple-mfd";
>> + reg = <0x6f8000 0x1000>;
>> +
>> + cpu_clk: clock-cpu {
>> + compatible = "marvell,ap806-cpu-clock";
>> + clocks = <&ap_clk 0>, <&ap_clk 1>;
>> + #clock-cells = <1>;
>> + };
>> +};
>> --
>> 2.20.1
>>

--
Gregory Clement, Bootlin
Embedded Linux and Kernel engineering