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Commit 0385d446 authored by Peter Crosthwaite's avatar Peter Crosthwaite Committed by Michal Simek
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devicetree: cadence_ttc: Document binding for timer width 



Modern TTC implementations can extend the timer width to 32 bit. This
feature is not self identifying so the driver needs to be made aware
via device tree.

Signed-off-by: default avatarPeter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: default avatarMichal Simek <michal.simek@xilinx.com>
parent 2221043b

Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt

+4 −0
Original line number Diff line number Diff line
@@ -6,6 +6,9 @@ Required properties: 
- interrupts : A list of 3 interrupts; one per timer channel.

- clocks: phandle to the source clock



Optional properties:

- timer-width: Bit width of the timer, necessary if not 16.



Example:



ttc0: ttc0@f8001000 {
@@ -14,4 +17,5 @@ ttc0: ttc0@f8001000 { 
	compatible = "cdns,ttc";

	reg = <0xF8001000 0x1000>;

	clocks = <&cpu_clk 3>;

	timer-width = <32>;

};