| Message ID | 1499445068-7037-2-git-send-email-fabrice.gasnier@st.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, Jul 07, 2017 at 06:31:00PM +0200, Fabrice Gasnier wrote: > Add documentation for STMicroelectronics STM32 Low-Power Timer binding. > > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> > Acked-by: Jonathan Cameron <jic23@kernel.org> > --- > Changes in v3: > - Rob's comment on node name: timer@... > > Changes in v2: > - Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve > properties descriptions > --- > .../devicetree/bindings/mfd/stm32-lptimer.txt | 48 ++++++++++++++++++++++ > 1 file changed, 48 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt Acked-by: Rob Herring <robh@kernel.org>
On Fri, 07 Jul 2017, Fabrice Gasnier wrote: > Add documentation for STMicroelectronics STM32 Low-Power Timer binding. > > Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> > Acked-by: Jonathan Cameron <jic23@kernel.org> > --- > Changes in v3: > - Rob's comment on node name: timer@... > > Changes in v2: > - Lee's comments: s/Low Power/Low-Power/, remove 0x in example, improve > properties descriptions > --- > .../devicetree/bindings/mfd/stm32-lptimer.txt | 48 ++++++++++++++++++++++ > 1 file changed, 48 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mfd/stm32-lptimer.txt For my own reference: Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
diff --git a/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt new file mode 100644 index 0000000..2a9ff29 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/stm32-lptimer.txt @@ -0,0 +1,48 @@ +STMicroelectronics STM32 Low-Power Timer + +The STM32 Low-Power Timer (LPTIM) is a 16-bit timer that provides several +functions: +- PWM output (with programmable prescaler, configurable polarity) +- Quadrature encoder, counter +- Trigger source for STM32 ADC/DAC (LPTIM_OUT) + +Required properties: +- compatible: Must be "st,stm32-lptimer". +- reg: Offset and length of the device's register set. +- clocks: Phandle to the clock used by the LP Timer module. +- clock-names: Must be "mux". +- #address-cells: Should be '<1>'. +- #size-cells: Should be '<0>'. + +Optional subnodes: +- pwm: See ../pwm/pwm-stm32-lp.txt +- counter: See ../iio/timer/stm32-lptimer-cnt.txt +- trigger: See ../iio/timer/stm32-lptimer-trigger.txt + +Example: + + timer@40002400 { + compatible = "st,stm32-lptimer"; + reg = <0x40002400 0x400>; + clocks = <&timer_clk>; + clock-names = "mux"; + #address-cells = <1>; + #size-cells = <0>; + + pwm { + compatible = "st,stm32-pwm-lp"; + pinctrl-names = "default"; + pinctrl-0 = <&lppwm1_pins>; + }; + + trigger@0 { + compatible = "st,stm32-lptimer-trigger"; + reg = <0>; + }; + + counter { + compatible = "st,stm32-lptimer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&lptim1_in_pins>; + }; + };