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author | Sascha Hauer <s.hauer@pengutronix.de> | 2019-06-05 00:06:30 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-06-11 09:11:11 +0200 |
commit | 796af3473b8222bcd89aa63e9886c355a6baf95d (patch) | |
tree | ad357b2756bda409b46747faaaf57a0ffd003c9c /dts/Bindings/counter/stm32-lptimer-cnt.txt | |
parent | 649b9ebcf53d697277bcdb01334dbcd563a33aa8 (diff) | |
download | barebox-796af3473b8222bcd89aa63e9886c355a6baf95d.tar.gz barebox-796af3473b8222bcd89aa63e9886c355a6baf95d.tar.xz |
dts: update to v5.2-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/counter/stm32-lptimer-cnt.txt')
-rw-r--r-- | dts/Bindings/counter/stm32-lptimer-cnt.txt | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/dts/Bindings/counter/stm32-lptimer-cnt.txt b/dts/Bindings/counter/stm32-lptimer-cnt.txt new file mode 100644 index 0000000000..e90bc47f75 --- /dev/null +++ b/dts/Bindings/counter/stm32-lptimer-cnt.txt @@ -0,0 +1,29 @@ +STMicroelectronics STM32 Low-Power Timer quadrature encoder and counter + +STM32 Low-Power Timer provides several counter modes. It can be used as: +- quadrature encoder to detect angular position and direction of rotary + elements, from IN1 and IN2 input signals. +- simple counter from IN1 input signal. + +Must be a sub-node of an STM32 Low-Power Timer device tree node. +See ../mfd/stm32-lptimer.txt for details about the parent node. + +Required properties: +- compatible: Must be "st,stm32-lptimer-counter". +- pinctrl-names: Set to "default". An additional "sleep" state can be + defined to set pins in sleep state. +- pinctrl-n: List of phandles pointing to pin configuration nodes, + to set IN1/IN2 pins in mode of operation for Low-Power + Timer input on external pin. + +Example: + timer@40002400 { + compatible = "st,stm32-lptimer"; + ... + counter { + compatible = "st,stm32-lptimer-counter"; + pinctrl-names = "default", "sleep"; + pinctrl-0 = <&lptim1_in_pins>; + pinctrl-1 = <&lptim1_sleep_in_pins>; + }; + }; |