From: Peter Crosthwaite <peter.crosthwaite@xxxxxxxxxx> 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: Peter Crosthwaite <peter.crosthwaite@xxxxxxxxxx> Signed-off-by: Michal Simek <michal.simek@xxxxxxxxxx> --- Changes in v2: - Change timer-width description based on my discussion with Mark Rutland. https://lkml.org/lkml/2014/9/17/277 - Code change is already applied to the mainline kernel tree Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt b/Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt index 993695c659e1..eeee6cd51e5c 100644 --- a/Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt +++ b/Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt @@ -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>; }; -- 1.8.2.3 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
