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| author | Thierry Reding <thierry.reding@avionic-design.de> | 2011-12-21 08:04:13 +0100 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@avionic-design.de> | 2012-07-02 21:38:59 +0200 |
| commit | 140fd977dc46bc750258f082cdf1cfea79dc1d14 (patch) | |
| tree | 689eedb11b8b36a2bef6d08266074168a43f7281 /Documentation/devicetree | |
| parent | 0134b932a02f272a3137e8331e38b69eff011587 (diff) | |
| download | linux-140fd977dc46bc750258f082cdf1cfea79dc1d14.tar.gz linux-140fd977dc46bc750258f082cdf1cfea79dc1d14.tar.bz2 linux-140fd977dc46bc750258f082cdf1cfea79dc1d14.zip | |
pwm: tegra: Add device tree support
Add auxdata to instantiate the PWFM controller from a device tree,
include the corresponding nodes in the dtsi files for Tegra 20 and
Tegra 30 and add binding documentation.
Acked-by: Stephen Warren <swarren@wwwdotorg.org>
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt new file mode 100644 index 000000000000..bbbeedb4ec05 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/nvidia,tegra20-pwm.txt @@ -0,0 +1,18 @@ +Tegra SoC PWFM controller + +Required properties: +- compatible: should be one of: + - "nvidia,tegra20-pwm" + - "nvidia,tegra30-pwm" +- reg: physical base address and length of the controller's registers +- #pwm-cells: On Tegra the number of cells used to specify a PWM is 2. The + first cell specifies the per-chip index of the PWM to use and the second + cell is the duty cycle in nanoseconds. + +Example: + + pwm: pwm@7000a000 { + compatible = "nvidia,tegra20-pwm"; + reg = <0x7000a000 0x100>; + #pwm-cells = <2>; + }; |