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Subject[PATCH v2 1/3] dt-bindings: pwm-stm32: document pinctrl sleep state
Date
Add documentation for pinctrl sleep state that can be used by
STM32 timers PWM.

Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com>
---
Documentation/devicetree/bindings/pwm/pwm-stm32.txt | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
index a8690bf..f1620c1 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32.txt
@@ -5,8 +5,9 @@ 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.
+- pinctrl-names: Set to "default". An additional "sleep" state can be
+ defined to set pins in sleep state when in low power.
+- pinctrl-n: List of phandles pointing to pin configuration nodes for PWM module.
For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt
- #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells
bindings defined in pwm.txt.
@@ -32,7 +33,8 @@ Example:
compatible = "st,stm32-pwm";
#pwm-cells = <3>;
pinctrl-0 = <&pwm1_pins>;
- pinctrl-names = "default";
+ pinctrl-1 = <&pwm1_sleep_pins>;
+ pinctrl-names = "default", "sleep";
st,breakinput = <0 1 5>;
};
};
--
2.7.4
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