[PATCH v6 3/8] PWM: add pwm-stm32 DT bindings
From: Benjamin Gaignard <hidden>
Date: 2016-12-13 16:29:27
Also in:
linux-devicetree, linux-iio, linux-pwm, lkml
2016-12-13 16:57 GMT+01:00 Rob Herring [off-list ref]:
On Tue, Dec 13, 2016 at 5:11 AM, Lee Jones [off-list ref] wrote:quoted
On Mon, 12 Dec 2016, Rob Herring wrote:quoted
On Fri, Dec 09, 2016 at 03:15:14PM +0100, Benjamin Gaignard wrote:quoted
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 <redacted> --- .../devicetree/bindings/pwm/pwm-stm32.txt | 33 ++++++++++++++++++++++ 1 file changed, 33 insertions(+) create mode 100644 Documentation/devicetree/bindings/pwm/pwm-stm32.txtdiff --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 at 40010000 {timer at ...No, it should be timers.Read the spec. "timer" is a generic node name. "timers" is not. How many is not relevant.
"timer" is already used in stm32 DT for clocksource node... It is also why I use "timers" for this.
quoted
The 's' is intentional, since this parent (MFD) device houses 3 different types of timers. The "timer" node is a child of this one.
-- Benjamin Gaignard Graphic Study Group Linaro.org ? Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog