[PATCH 1/3] dt-bindings: add Marvell core PLL and clock divider PMU documentation

Russell King
2015-11-26T22:23:36Z

Add documentation for the Marvell clock divider driver, which is used
to source clocks for the AXI bus, video decoder, GPU and LCD blocks.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---
.../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..0c602de279e5
--- /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>;
+};
--
2.1.0