From c6664ca0a368130efd6c337c1e1c298cb6b128e8 Mon Sep 17 00:00:00 2001 From: Russell King Date: Sun, 6 Dec 2015 23:28:26 +0000 Subject: [PATCH] dt-bindings: add Marvell core PLL and clock divider PMU documentation Add documentation for the Marvell clock divider driver, which is used to source clocks for the AXI bus, video decoder, GPU and LCD blocks. Acked-by: Andrew Lunn Acked-by: Sebastian Hesselbarth Acked-by: Rob Herring Signed-off-by: Russell King Signed-off-by: Gregory CLEMENT --- .../bindings/clock/dove-divider-clock.txt | 28 +++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/dove-divider-clock.txt diff --git a/Documentation/devicetree/bindings/clock/dove-divider-clock.txt b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt new file mode 100644 index 000000000000..e3eb0f657c5e --- /dev/null +++ b/Documentation/devicetree/bindings/clock/dove-divider-clock.txt @@ -0,0 +1,28 @@ +PLL divider based Dove clocks + +Marvell Dove has a 2GHz PLL, which feeds into a set of dividers to provide +high speed clocks for a number of peripherals. These dividers are part of +the PMU, and thus this node should be a child of the PMU node. + +The following clocks are provided: + +ID Clock +------------- +0 AXI bus clock +1 GPU clock +2 VMeta clock +3 LCD clock + +Required properties: +- compatible : shall be "marvell,dove-divider-clock" +- reg : shall be the register address of the Core PLL and Clock Divider + Control 0 register. This will cover that register, as well as the + Core PLL and Clock Divider Control 1 register. Thus, it will have + a size of 8. +- #clock-cells : from common clock binding; shall be set to 1 + +divider_clk: core-clock@0064 { + compatible = "marvell,dove-divider-clock"; + reg = <0x0064 0x8>; + #clock-cells = <1>; +}; -- 2.20.1