[PATCH v4 3/7] PWM: add pwm-stm32 DT bindings
From: Benjamin Gaignard <hidden>
Date: 2016-12-06 12:46:05
Also in:
linux-devicetree, linux-iio, linux-pwm, lkml
Subsystem:
open firmware and flattened device tree bindings, pwm subsystem, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Uwe Kleine-König, Linus Torvalds
Define bindings for pwm-stm32 version 2: - use parameters instead of compatible of handle the hardware configuration Signed-off-by: Benjamin Gaignard <redacted> --- .../devicetree/bindings/pwm/pwm-stm32.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
new file mode 100644
index 0000000..c0cc246
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt@@ -0,0 +1,33 @@ +STMicroelectronics STM32 General Purpose Timer PWM bindings + +Must be a sub-node of an STM32 General Purpose Timer device tree node. +See ../mfd/stm32-general-purpose-timer.txt for details about the parent node. + +Required parameters: +- compatible: Must be "st,stm32-pwm". +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes for PWM module. + For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt + +Optional parameters: +- st,breakinput-polarity: If present, a break input is available + for the channel. In that case the property value denotes the + polarity of the break input: + - 0: active low + - 1: active high + +Example: + gptimer at 40010000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stm32-gptimer"; + reg = <0x40010000 0x400>; + clocks = <&rcc 0 160>; + clock-names = "clk_int"; + + pwm at 0 { + compatible = "st,stm32-pwm"; + pinctrl-0 = <&pwm1_pins>; + pinctrl-names = "default"; + }; + };
--
1.9.1