Add bindings information for stm32 timer MFD
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxx>
---
.../devicetree/bindings/mfd/stm32-timer.txt | 53 ++++++++++++++++++++++
1 file changed, 53 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mfd/stm32-timer.txt
diff --git a/Documentation/devicetree/bindings/mfd/stm32-timer.txt b/Documentation/devicetree/bindings/mfd/stm32-timer.txt
new file mode 100644
index 0000000..3cefce1
--- /dev/null
+++ b/Documentation/devicetree/bindings/mfd/stm32-timer.txt
@@ -0,0 +1,53 @@
+STM32 multifunctions timer driver
+
+stm32 timer MFD allow to handle at the same time pwm and IIO timer devices
+
+Required parameters:
+- compatible: must be one of the follow value:
+ "st,stm32-mfd-timer1"
+ "st,stm32-mfd-timer2"
+ "st,stm32-mfd-timer3"
+ "st,stm32-mfd-timer4"
+ "st,stm32-mfd-timer5"
+ "st,stm32-mfd-timer6"
+ "st,stm32-mfd-timer7"
+ "st,stm32-mfd-timer8"
+ "st,stm32-mfd-timer9"
+ "st,stm32-mfd-timer10"
+ "st,stm32-mfd-timer11"
+ "st,stm32-mfd-timer12"
+ "st,stm32-mfd-timer13"
+ "st,stm32-mfd-timer14"
+
+- reg : Physical base address and length of the controller's
+ registers.
+- clock-names: Set to "mfd_timer_clk".
+- clocks: Phandle of the clock used by the timer module.
+ For Clk properties, please refer to [1].
+- interrupts : Reference to the timer interrupt
+
+Optional parameters:
+- resets : Reference to a reset controller asserting the timer
+
+Optional subnodes:
+- pwm: See Documentation/devicetree/bindings/pwm/pwm-stm32.txt
+- iiotimer: See Documentation/devicetree/bindings/iio/timer/stm32-iio-timer.txt
+
+[1] Documentation/devicetree/bindings/clock/clock-bindings.txt
+
+Example:
+ mfd_timer1: mfdtimer1@40010000 {
+ compatible = "st,stm32-mfd-timer1";
+ reg = <0x40010000 0x400>;
+ clocks = <&rcc 0 160>;
+ clock-names = "mfd_timer_clk";
+ interrupts = <27>;
+
+ pwm1: pwm1@40010000 {
+ compatible = "st,stm32-pwm1";
+ };
+
+ iiotimer1: iiotimer1@40010000 {
+ compatible = "st,stm32-iio-timer1";
+ };
+ };
--
1.9.1
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