[PATCH v3 05/18] tegra: fdt: Add pwm binding and node
From: Simon Glass <hidden>
Date: 2012-07-12 15:25:05
Also in:
u-boot
Subsystem:
arm port, the rest · Maintainers:
Russell King, Linus Torvalds
This binding will apparently soon be in linux-next. Bring it in now since we need to do something, and may as well try to target what Linux will have. Signed-off-by: Simon Glass <redacted> --- Changes in v3: - Add new commit for pwm binding and node arch/arm/dts/tegra20.dtsi | 7 +++++++ doc/device-tree-bindings/pwm/tegra20-pwm.txt | 18 ++++++++++++++++++ 2 files changed, 25 insertions(+), 0 deletions(-) create mode 100644 doc/device-tree-bindings/pwm/tegra20-pwm.txt
diff --git a/arch/arm/dts/tegra20.dtsi b/arch/arm/dts/tegra20.dtsi
index f95be58..e7d1688 100644
--- a/arch/arm/dts/tegra20.dtsi
+++ b/arch/arm/dts/tegra20.dtsi@@ -204,4 +204,11 @@ compatible = "nvidia,tegra20-kbc"; reg = <0x7000e200 0x0078>; }; + + pwm: pwm@7000a000 { + compatible = "nvidia,tegra20-pwm"; + reg = <0x7000a000 0x100>; + #pwm-cells = <2>; + }; + };
diff --git a/doc/device-tree-bindings/pwm/tegra20-pwm.txt b/doc/device-tree-bindings/pwm/tegra20-pwm.txt
new file mode 100644
index 0000000..bbbeedb
--- /dev/null
+++ b/doc/device-tree-bindings/pwm/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>; + };
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1.7.7.3