Add documentation about how to properly use the Ingenic TCU (Timer/Counter Unit) timers driver from devicetree.
Signed-off-by: Paul Cercueil <[email protected]> --- .../devicetree/bindings/timer/ingenic,tcu.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/timer/ingenic,tcu.txt v3: New patch in this series diff --git a/Documentation/devicetree/bindings/timer/ingenic,tcu.txt b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt new file mode 100644 index 000000000000..dd76877efb8b --- /dev/null +++ b/Documentation/devicetree/bindings/timer/ingenic,tcu.txt @@ -0,0 +1,35 @@ +Ingenic JZ47xx SoCs Timer/Counter Unit driver +--------------------------------------------- + +Required properties: + +- compatible : should be "ingenic,<socname>-tcu". Valid strings are: + * ingenic,jz4740-tcu + * ingenic,jz4770-tcu + * ingenic,jz4780-tcu +- interrupt-parent : phandle of the TCU interrupt controller. +- interrupts : Specifies the interrupts the controller is connected to. +- clocks : List of phandle & clock specifiers for the TCU clocks. +- clock-names : List of name strings for the TCU clocks. + +Example: + +/ { + mfd@10002000 { + compatible = "ingenic,tcu", "simple-mfd", "syscon"; + reg = <0x10002000 0x1000>; + + tcu_timer: timer { + compatible = "ingenic,jz4740-tcu"; + reg = <0x10002010 0xFF0>; + + clocks = <&tcu 0>, <&tcu 1>, <&tcu 2>, <&tcu 3>, + <&tcu 4>, <&tcu 5>, <&tcu 6>, <&tcu 7>; + clock-names = "timer0", "timer1", "timer2", "timer3", + "timer4", "timer5", "timer6", "timer7"; + + interrupt-parent = <&tcu>; + interrupts = <0 1 2 3 4 5 6 7>; + }; + }; +}; -- 2.11.0
