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Groups > linux.kernel > #1529423
| From | Benjamin Gaignard <benjamin.gaignard@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH v2 3/7] PWM: add pwm-stm32 DT bindings |
| Date | 2016-11-24 16:20 +0100 |
| Message-ID | <sH3YC-4sR-39@gated-at.bofh.it> (permalink) |
| References | <sH3YB-4sR-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Define bindings for pwm-stm32
version 2:
- use parameters instead of compatible of handle the hardware configuration
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
---
.../devicetree/bindings/pwm/pwm-stm32.txt | 37 ++++++++++++++++++++++
1 file changed, 37 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..36263f0
--- /dev/null
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -0,0 +1,37 @@
+STMicroelectronics PWM driver bindings for STM32
+
+Must be a sub-node of STM32 general purpose timer driver
+
+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, please refer to [1].
+
+Optional parameters:
+- st,breakinput: Set if the hardware have break input capabilities
+- st,breakinput-polarity: Set break input polarity. Default is 0
+ The value define the active polarity:
+ - 0 (active LOW)
+ - 1 (active HIGH)
+- st,pwm-num-chan: Number of available PWM channels. Default is 0.
+- st,32bits-counter: Set if the hardware have a 32 bits counter
+- st,complementary: Set if the hardware have complementary output channels
+
+[1] Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+
+Example:
+ gptimer1: gptimer1@40010000 {
+ compatible = "st,stm32-gptimer";
+ reg = <0x40010000 0x400>;
+ clocks = <&rcc 0 160>;
+ clock-names = "clk_int";
+
+ pwm1@0 {
+ compatible = "st,stm32-pwm";
+ st,pwm-num-chan = <4>;
+ st,breakinput;
+ st,complementary;
+ };
+ };
--
1.9.1
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[PATCH v2 0/7] Add pwm and IIO timer drivers for stm32 Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 4/7] PWM: add pwm driver for stm32 plaftorm Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 6/7] IIO: add STM32 IIO timer driver Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 1/7] MFD: add bindings for stm32 general purpose timer driver Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 5/7] IIO: add bindings for stm32 IIO timer driver Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 7/7] ARM: dts: stm32: add stm32 general purpose timer driver in DT Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 3/7] PWM: add pwm-stm32 DT bindings Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100 [PATCH v2 2/7] MFD: add stm32 general purpose timer driver Benjamin Gaignard <benjamin.gaignard@linaro.org> - 2016-11-24 16:20 +0100
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