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Date: Fri, 9 Dec 2016 15:15:14 +0100 From: Benjamin Gaignard <benjamin.gaignard@...aro.org> To: lee.jones@...aro.org, robh+dt@...nel.org, mark.rutland@....com, alexandre.torgue@...com, devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, thierry.reding@...il.com, linux-pwm@...r.kernel.org, jic23@...nel.org, knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net, linux-iio@...r.kernel.org, linux-arm-kernel@...ts.infradead.org Cc: fabrice.gasnier@...com, gerald.baeza@...com, arnaud.pouliquen@...com, linus.walleij@...aro.org, linaro-kernel@...ts.linaro.org, benjamin.gaignard@...aro.org, Benjamin Gaignard <benjamin.gaignard@...com> Subject: [PATCH v6 3/8] PWM: add pwm-stm32 DT bindings Define bindings for pwm-stm32 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@...com> --- .../devicetree/bindings/pwm/pwm-stm32.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txt diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt new file mode 100644 index 0000000..866f222 --- /dev/null +++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt @@ -0,0 +1,33 @@ +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: Arrays of three u32 <index level filter> to describe break input configurations. + "index" indicates on which break input the configuration should be applied. + "level" gives the active level (0=low or 1=high) for this configuration. + "filter" gives the filtering value to be applied. + +Example: + timers@...10000 { + #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>; + }; + }; -- 1.9.1
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