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dt-bindings: iio: stm32-lptimer-counter: document pinctrl sleep state 

Add documentation for optional pinctrl sleep state that can be used by
STM32 LPTimer encoder/counter.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Fabrice Gasnier 2019-02-25 11:42:46 +01:00 committed by Jonathan Cameron
parent 722f2cca9a
commit 74896202df
1 changed files with 5 additions and 3 deletions
Documentation/devicetree/bindings/iio/counter
stm32-lptimer-cnt.txt

8
Documentation/devicetree/bindings/iio/counter/stm32-lptimer-cnt.txt
View File

@ -10,8 +10,9 @@ 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".
- pinctrl-0: List of phandles pointing to pin configuration nodes,
- 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.
@ -21,7 +22,8 @@ Example:
...
counter {
compatible = "st,stm32-lptimer-counter";
pinctrl-names = "default";
pinctrl-names = "default", "sleep";
pinctrl-0 = <&lptim1_in_pins>;
pinctrl-1 = <&lptim1_sleep_in_pins>;
};
};