Add bindings information for stm32 general purpose timer
version 2:
- rename stm32-mfd-timer to stm32-gptimer
- only keep one compatible string
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
---
.../bindings/mfd/stm32-general-purpose-timer.txt | 43 ++++++++++++++++++++++
1 file changed, 43 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
diff --git a/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt b/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
new file mode 100644
index 0000000..2f10e67
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/stm32-general-purpose-timer.txt
@@ -0,0 +1,43 @@
+STM32 general purpose timer driver
+
+Required parameters:
+- compatible: must be "st,stm32-gptimer"
+
+- reg: Physical base address and length of the controller's
+ registers.
+- clock-names: Set to "clk_int".
+- clocks: Phandle to the clock used by the timer module.
+ For Clk properties, please refer to ../clock/clock-bindings.txt
+
+Optional parameters:
+- resets: Phandle to the parent reset controller.
+ See ..reset/st,stm32-rcc.txt
+
+Optional subnodes:
+- pwm: See ../pwm/pwm-stm32.txt
+- iiotimer: See ../iio/timer/stm32-iio-timer.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;
+ };
+
+ iiotimer1@0 {
+ compatible = "st,stm32-iio-timer";
+ interrupts = <27>;
+ st,input-triggers-names = TIM5_TRGO,
+ TIM2_TRGO,
+ TIM4_TRGO,
+ TIM3_TRGO;
+ st,output-triggers-names = TIM1_TRGO;
+ };
+ };
--
1.9.1
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