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Subject[PATCH v5 20/44] dt-bindings: clock: Add bindings for TI DA8XX USB PHY clocks
Date
This adds a new binding for TI DA8XX USB PHY clocks. These clocks are part
of a syscon register called CFGCHIP3.

Signed-off-by: David Lechner <david@lechnology.com>
---
.../clock/ti/davinci/da8xx-cfgchip-usb-phy.txt | 55 ++++++++++++++++++++++
1 file changed, 55 insertions(+)
create mode 100644 Documentation/devicetree/bindings/clock/ti/davinci/da8xx-cfgchip-usb-phy.txt

diff --git a/Documentation/devicetree/bindings/clock/ti/davinci/da8xx-cfgchip-usb-phy.txt b/Documentation/devicetree/bindings/clock/ti/davinci/da8xx-cfgchip-usb-phy.txt
new file mode 100644
index 0000000..8a12e1b
--- /dev/null
+++ b/Documentation/devicetree/bindings/clock/ti/davinci/da8xx-cfgchip-usb-phy.txt
@@ -0,0 +1,55 @@
+Binding for TI DA8XX/OMAP-L13X/AM17XX/AM18XX CFGCHIP USB PHY clocks
+
+TI DA8XX/OMAP-L13X/AM17XX/AM18XX SoCs contain a general purpose set of
+registers call CFGCHIPn. Some of these registers function as the USB PHY
+clocks. This document describes the bindings for those clocks.
+
+Required properties:
+- compatible: shall be one of:
+ - "ti,da830-usb0-phy-clock" for the USB 2.0 PHY
+ - "ti,da830-usb1-phy-clock" for the USB 1.1 PHY
+- #clock-cells: from common clock binding; shall be set to 0.
+- clocks: phandle list of clocks corresponding to clock-names
+- clock-names: depends on compatible:
+ - for "ti,da830-usb0-phy-clock" must be "usb_refclkin", "auxclk",
+ "usb0_lpsc"
+ - for "ti,da830-usb1-phy-clock" must be "usb0_phy", "usb_refclkin"
+
+Optional properties:
+- clock-output-names: from common clock binding.
+
+Parent:
+ This node must be a child of a "ti,da830-cfgchip" node.
+
+Assignment:
+ The assigned-clocks and assigned-clock-parents properties from the
+ common clock bindings can be used to indicate which parent clock should
+ be used. Note: for "ti,da830-usb0-phy-clock", only "usb_refclkin" or
+ "auxclk" can be used as the assigned parent clock ("usb0_lpsc" is not
+ an actual parent clock and only used internally).
+
+Examples:
+
+ cfgchip: syscon@1417c {
+ compatible = "ti,da830-cfgchip", "syscon", "simple-mfd";
+ reg = <0x1417c 0x14>;
+
+ usb0_phy_clk: usb0-phy-clock {
+ compatible = "ti,da830-usb0-phy-clock";
+ #clock-cells = <0>;
+ clocks = <&usb_refclkin>, <&pll0_aux_clk>, <&psc1 1>;
+ clock-names = "usb_refclkin", "auxclk", "usb0_lpsc";
+ clock-output-names = "usb0_phy_clk";
+ };
+
+ usb1_phy_clk: usb1-phy-clock {
+ compatible = "ti,da830-usb1-phy-clock";
+ #clock-cells = <0>;
+ clocks = <&usb0_phy_clk>, <&usb_refclkin>;
+ clock-names = "usb0_phy", "usb_refclkin";
+ clock-output-names = "usb1_phy_clk";
+ };
+ };
+
+Also see:
+- Documentation/devicetree/bindings/clock/clock-bindings.txt
--
2.7.4
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