| Message ID | c1cc3d567d0a5799c3afe6e24ca9ec3b1547224e.1529607879.git.vilhelm.gray@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 06/21/2018 04:08 PM, William Breathitt Gray wrote: > From: Benjamin Gaignard <benjamin.gaignard@st.com> > > Add bindings for STM32 Timer quadrature encoder. > It is a sub-node of STM32 Timer which implement the > quadratic encoder part of the hardware. quadradic? or quadrature? > > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Mark Rutland <mark.rutland@arm.com> > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> > Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> > --- > .../bindings/counter/stm32-timer-cnt.txt | 31 +++++++++++++++++++ > .../devicetree/bindings/mfd/stm32-timers.txt | 7 +++++ > 2 files changed, 38 insertions(+) > create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt > > diff --git a/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt > new file mode 100644 > index 000000000000..c52fcdd4bf6c > --- /dev/null > +++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt > @@ -0,0 +1,31 @@ > +STMicroelectronics STM32 Timer quadrature encoder > + > +STM32 Timer provides quadrature encoder to detect > +angular position and direction of rotary elements, > +from IN1 and IN2 input signals. > + > +Must be a sub-node of an STM32 Timer device tree node. > +See ../mfd/stm32-timers.txt for details about the parent node. > + > +Required properties: > +- compatible: Must be "st,stm32-timer-counter". > +- pinctrl-names: Set to "default". > +- pinctrl-0: List of phandles pointing to pin configuration nodes, > + to set CH1/CH2 pins in mode of operation for STM32 > + Timer input on external pin. > + > +Example: > + timers@40010000 { > + #address-cells = <1>; > + #size-cells = <0>; > + compatible = "st,stm32-timers"; > + reg = <0x40010000 0x400>; > + clocks = <&rcc 0 160>; > + clock-names = "int"; > + > + counter { > + compatible = "st,stm32-timer-counter"; > + pinctrl-names = "default"; > + pinctrl-0 = <&tim1_in_pins>; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt > index 1db6e0057a63..ff9c14ada30b 100644 > --- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt > +++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt > @@ -23,6 +23,7 @@ Optional parameters: > Optional subnodes: > - pwm: See ../pwm/pwm-stm32.txt > - timer: See ../iio/timer/stm32-timer-trigger.txt > +- counter: See ../counter/stm32-timer-cnt.txt > > Example: > timers@40010000 { > @@ -43,4 +44,10 @@ Example: > compatible = "st,stm32-timer-trigger"; > reg = <0>; > }; > + > + counter { > + compatible = "st,stm32-timer-counter"; > + pinctrl-names = "default"; > + pinctrl-0 = <&tim1_in_pins>; > + }; > }; >
On Thu, Jun 21, 2018 at 05:08:34PM -0400, William Breathitt Gray wrote: > From: Benjamin Gaignard <benjamin.gaignard@st.com> > > Add bindings for STM32 Timer quadrature encoder. > It is a sub-node of STM32 Timer which implement the > quadratic encoder part of the hardware. > > Cc: Rob Herring <robh+dt@kernel.org> > Cc: Mark Rutland <mark.rutland@arm.com> > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> > Signed-off-by: William Breathitt Gray <vilhelm.gray@gmail.com> > --- > .../bindings/counter/stm32-timer-cnt.txt | 31 +++++++++++++++++++ > .../devicetree/bindings/mfd/stm32-timers.txt | 7 +++++ > 2 files changed, 38 insertions(+) > create mode 100644 Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt Acked-by: Rob Herring <robh@kernel.org>
diff --git a/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt new file mode 100644 index 000000000000..c52fcdd4bf6c --- /dev/null +++ b/Documentation/devicetree/bindings/counter/stm32-timer-cnt.txt @@ -0,0 +1,31 @@ +STMicroelectronics STM32 Timer quadrature encoder + +STM32 Timer provides quadrature encoder to detect +angular position and direction of rotary elements, +from IN1 and IN2 input signals. + +Must be a sub-node of an STM32 Timer device tree node. +See ../mfd/stm32-timers.txt for details about the parent node. + +Required properties: +- compatible: Must be "st,stm32-timer-counter". +- pinctrl-names: Set to "default". +- pinctrl-0: List of phandles pointing to pin configuration nodes, + to set CH1/CH2 pins in mode of operation for STM32 + Timer input on external pin. + +Example: + timers@40010000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stm32-timers"; + reg = <0x40010000 0x400>; + clocks = <&rcc 0 160>; + clock-names = "int"; + + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; + }; diff --git a/Documentation/devicetree/bindings/mfd/stm32-timers.txt b/Documentation/devicetree/bindings/mfd/stm32-timers.txt index 1db6e0057a63..ff9c14ada30b 100644 --- a/Documentation/devicetree/bindings/mfd/stm32-timers.txt +++ b/Documentation/devicetree/bindings/mfd/stm32-timers.txt @@ -23,6 +23,7 @@ Optional parameters: Optional subnodes: - pwm: See ../pwm/pwm-stm32.txt - timer: See ../iio/timer/stm32-timer-trigger.txt +- counter: See ../counter/stm32-timer-cnt.txt Example: timers@40010000 { @@ -43,4 +44,10 @@ Example: compatible = "st,stm32-timer-trigger"; reg = <0>; }; + + counter { + compatible = "st,stm32-timer-counter"; + pinctrl-names = "default"; + pinctrl-0 = <&tim1_in_pins>; + }; };