[PATCH v7 1/6] dt-bindings: ap806: add the cluster clock node in the syscon file

Gregory CLEMENT
2019-07-10T13:47:45Z

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 | 31 +++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
index 7b8b8eb0191f..4f21c1024073 100644
--- a/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
+++ b/Documentation/devicetree/bindings/arm/marvell/ap806-system-controller.txt
@@ -21,8 +21,8 @@ Clocks:
The Device Tree node representing the AP806 system controller provides
a number of clocks:

- - 0: clock of CPU cluster 0
- - 1: clock of CPU cluster 1
+ - 0: reference clock of CPU cluster 0
+ - 1: reference clock of CPU cluster 1
- 2: fixed PLL at 1200 Mhz
- 3: MSS clock, derived from the fixed PLL

@@ -143,3 +143,30 @@ 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 parent clock(s) phandle for the clock
+ (one per cluster)
+
+- reg: register range associated with the cluster clocks
+
+ap_syscon1: system-controller@6f8000 {
+ compatible = "marvell,armada-ap806-syscon1", "syscon", "simple-mfd";
+ reg = <0x6f8000 0x1000>;
+
+ cpu_clk: clock-cpu@278 {
+ compatible = "marvell,ap806-cpu-clock";
+ clocks = <&ap_clk 0>, <&ap_clk 1>;
+ #clock-cells = <1>;
+ reg = <0x278 0xa30>;
+ };
+};