diff mbox

arm64: dts: zx: add pcu_domain node for zx296718

Message ID 1480766354-25168-1-git-send-email-baoyou.xie@linaro.org
State New
Headers show

Commit Message

Baoyou Xie Dec. 3, 2016, 11:59 a.m. UTC
This patch adds the pcu_domain node, so it can be used
by zte-soc's power domain driver.

Furthermore, it adds the document of the node.

Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>

---
 Documentation/devicetree/bindings/arm/zte.txt | 11 +++++++++++
 arch/arm64/boot/dts/zte/zx296718.dtsi         |  7 +++++++
 2 files changed, 18 insertions(+)

-- 
2.7.4

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Comments

Shawn Guo Dec. 5, 2016, 3:16 a.m. UTC | #1
On Sat, Dec 03, 2016 at 07:59:14PM +0800, Baoyou Xie wrote:
> This patch adds the pcu_domain node, so it can be used

> by zte-soc's power domain driver.

> 

> Furthermore, it adds the document of the node.

> 

> Signed-off-by: Baoyou Xie <baoyou.xie@linaro.org>

> ---

>  Documentation/devicetree/bindings/arm/zte.txt | 11 +++++++++++


DT bindings doc should be a separate patch, and goes together with
driver changes using the bindings through subsystem maintainers, rather
than dts patches.

>  arch/arm64/boot/dts/zte/zx296718.dtsi         |  7 +++++++

>  2 files changed, 18 insertions(+)

> 

> diff --git a/Documentation/devicetree/bindings/arm/zte.txt b/Documentation/devicetree/bindings/arm/zte.txt

> index 83369785..19a7e1b 100644

> --- a/Documentation/devicetree/bindings/arm/zte.txt

> +++ b/Documentation/devicetree/bindings/arm/zte.txt

> @@ -27,6 +27,9 @@ System management required properties:

>        - compatible = "zte,zx296718-aon-sysctrl"

>        - compatible = "zte,zx296718-sysctrl"

>  

> +Low power management required properties:

> +      - compatible = "zte,zx296718-pcu"

> +

>  Example:

>  aon_sysctrl: aon-sysctrl@116000 {

>  	compatible = "zte,zx296718-aon-sysctrl", "syscon";

> @@ -37,3 +40,11 @@ sysctrl: sysctrl@1463000 {

>  	compatible = "zte,zx296718-sysctrl", "syscon";

>  	reg = <0x1463000 0x1000>;

>  };

> +

> +pcu_domain: pcu@0x00117000 {

> +        compatible = "zte,zx296718-pcu";

> +        reg = <0x00117000 0x1000>;

> +        #power-domain-cells = <1>;

> +        status = "ok";

> +};

> +


I think we should have a separate bindings doc for PCU power domain
block in Documentation/devicetree/bindings/soc/zte.

> diff --git a/arch/arm64/boot/dts/zte/zx296718.dtsi b/arch/arm64/boot/dts/zte/zx296718.dtsi

> index b44d1d1..39e70c7 100644

> --- a/arch/arm64/boot/dts/zte/zx296718.dtsi

> +++ b/arch/arm64/boot/dts/zte/zx296718.dtsi

> @@ -351,5 +351,12 @@

>  			reg = <0x01480000 0x1000>;

>  			#clock-cells = <1>;

>  		};

> +

> +		pcu_domain: pcu@0x00117000 {


Please drop the 0x and leading zeros in unit-address after node name.
That said, the node name should be written like below:

	pcu@117000 {

Also, please sort the node with unit-address in order of the address.
That means that pcu node should be put after aon-sysctrl@116000.

> +			compatible = "zte,zx296718-pcu";

> +			reg = <0x00117000 0x1000>;

> +			#power-domain-cells = <1>;

> +			status = "ok";


The property 'status' is generally used to enable devices that have
board-level pin-out or configuration in board dts.  It's not really
necessary for pcu here.

Shawn

> +		};

>  	};

>  };

> -- 

> 2.7.4

> 

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diff mbox

Patch

diff --git a/Documentation/devicetree/bindings/arm/zte.txt b/Documentation/devicetree/bindings/arm/zte.txt
index 83369785..19a7e1b 100644
--- a/Documentation/devicetree/bindings/arm/zte.txt
+++ b/Documentation/devicetree/bindings/arm/zte.txt
@@ -27,6 +27,9 @@  System management required properties:
       - compatible = "zte,zx296718-aon-sysctrl"
       - compatible = "zte,zx296718-sysctrl"
 
+Low power management required properties:
+      - compatible = "zte,zx296718-pcu"
+
 Example:
 aon_sysctrl: aon-sysctrl@116000 {
 	compatible = "zte,zx296718-aon-sysctrl", "syscon";
@@ -37,3 +40,11 @@  sysctrl: sysctrl@1463000 {
 	compatible = "zte,zx296718-sysctrl", "syscon";
 	reg = <0x1463000 0x1000>;
 };
+
+pcu_domain: pcu@0x00117000 {
+        compatible = "zte,zx296718-pcu";
+        reg = <0x00117000 0x1000>;
+        #power-domain-cells = <1>;
+        status = "ok";
+};
+
diff --git a/arch/arm64/boot/dts/zte/zx296718.dtsi b/arch/arm64/boot/dts/zte/zx296718.dtsi
index b44d1d1..39e70c7 100644
--- a/arch/arm64/boot/dts/zte/zx296718.dtsi
+++ b/arch/arm64/boot/dts/zte/zx296718.dtsi
@@ -351,5 +351,12 @@ 
 			reg = <0x01480000 0x1000>;
 			#clock-cells = <1>;
 		};
+
+		pcu_domain: pcu@0x00117000 {
+			compatible = "zte,zx296718-pcu";
+			reg = <0x00117000 0x1000>;
+			#power-domain-cells = <1>;
+			status = "ok";
+		};
 	};
 };