| Message ID | 1484749251-14445-4-git-send-email-benjamin.gaignard@st.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add PWM and IIO timer drivers for STM32 | expand |
On Wed, Jan 18, 2017 at 03:20:46PM +0100, Benjamin Gaignard wrote: > Define bindings for pwm-stm32 > > version 8: > - reword st,breakinput description. > > version 6: > - change st,breakinput parameter format to make it usuable on stm32f7 too. > > version 2: > - use parameters instead of compatible of handle the hardware configuration > > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com> > Acked-by: Rob Herring <robh@kernel.org> > --- > .../devicetree/bindings/pwm/pwm-stm32.txt | 35 ++++++++++++++++++++++ > 1 file changed, 35 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt One last nit: please use "dt-bindings: pwm:" as prefix for the patch subject. So it would read something like this: dt-bindings: pwm: Add STM32 bindings or similar. That's the style that's been used for a while now. I'd have fixed that up myself, but since Lee plans to take this through the MFD tree I'd like to see that fixed up before it gets applied. With the above: Acked-by: Thierry Reding <thierry.reding@gmail.com> _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt new file mode 100644 index 0000000..6dd0403 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt @@ -0,0 +1,35 @@ +STMicroelectronics STM32 Timers PWM bindings + +Must be a sub-node of an STM32 Timers device tree node. +See ../mfd/stm32-timers.txt for details about the parent node. + +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 see ../pinctrl/pinctrl-bindings.txt + +Optional parameters: +- st,breakinput: One or two <index level filter> to describe break input configurations. + "index" indicates on which break input (0 or 1) the configuration + should be applied. + "level" gives the active level (0=low or 1=high) of the input signal + for this configuration. + "filter" gives the filtering value to be applied. + +Example: + timers@40010000 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "st,stm32-timers"; + reg = <0x40010000 0x400>; + clocks = <&rcc 0 160>; + clock-names = "clk_int"; + + pwm { + compatible = "st,stm32-pwm"; + pinctrl-0 = <&pwm1_pins>; + pinctrl-names = "default"; + st,breakinput = <0 1 5>; + }; + };