From cedfbc309d62f8f029dc0c3b926452cc84796023 Mon Sep 17 00:00:00 2001 From: Gregory CLEMENT Date: Tue, 19 Jul 2016 15:42:17 +0200 Subject: [PATCH] dt-bindings: clock: add DT binding for the Xtal clock on Armada 3700 This commit adds the DT binding documentation for the the Xtal clock on Armada 3700 used in the Marvell Armada 3700 SoCs. Signed-off-by: Gregory CLEMENT Acked-by: Rob Herring Signed-off-by: Stephen Boyd --- .../bindings/clock/armada3700-xtal-clock.txt | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt diff --git a/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt b/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt new file mode 100644 index 000000000000..a88f1f05fbd6 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/armada3700-xtal-clock.txt @@ -0,0 +1,28 @@ +* Xtal Clock bindings for Marvell Armada 37xx SoCs + +Marvell Armada 37xx SoCs allow to determine the xtal clock frequencies by +reading the gpio latch register. + +This node must be a subnode of the node exposing the register address +of the GPIO block where the gpio latch is located. + +Required properties: +- compatible : shall be one of the following: + "marvell,armada-3700-xtal-clock" +- #clock-cells : from common clock binding; shall be set to 0 + +Optional properties: +- clock-output-names : from common clock binding; allows overwrite default clock + output names ("xtal") + +Example: +gpio1: gpio@13800 { + compatible = "marvell,armada-3700-gpio", "syscon", "simple-mfd"; + reg = <0x13800 0x1000>; + + xtalclk: xtal-clk { + compatible = "marvell,armada-3700-xtal-clock"; + clock-output-names = "xtal"; + #clock-cells = <0>; + }; +}; -- 2.20.1