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| author | Peter Crosthwaite <peter.crosthwaite@xilinx.com> | 2014-07-22 02:25:26 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@xilinx.com> | 2015-05-28 08:45:24 +0200 |
| commit | 0385d4464012f5b9a602311acfaa4902183d0ad5 (patch) | |
| tree | 7eeb489b2ddadd0a71087fb71ac3d09bf2e865be /Documentation | |
| parent | ARM: dts: zynq: Fix stdout-path and bootargs (diff) | |
| download | linux-0385d4464012f5b9a602311acfaa4902183d0ad5.tar.xz linux-0385d4464012f5b9a602311acfaa4902183d0ad5.zip | |
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: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/timer/cadence,ttc-timer.txt | 4 |
1 files changed, 4 insertions, 0 deletions
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>; }; |