From: Gerald Baeza <gerald.baeza@xxxxxx>
STM32 Low-Power Timer supports generic 3 cells pwm to encode
PWM number, period and polarity.
Signed-off-by: Gerald Baeza <gerald.baeza@xxxxxx>
Signed-off-by: Fabrice Gasnier <fabrice.gasnier@xxxxxx>
Reviewed-by: Rob Herring <robh@xxxxxxxxxx>
---
Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
index f8338d1..bd23302 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-stm32-lp.txt
@@ -7,6 +7,8 @@ See ../mfd/stm32-lptimer.txt for details about the parent node.
Required parameters:
- compatible: Must be "st,stm32-pwm-lp".
+- #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells
+ bindings defined in pwm.txt.
Optional properties:
- pinctrl-names: Set to "default".
@@ -18,6 +20,7 @@ Example:
...
pwm {
compatible = "st,stm32-pwm-lp";
+ #pwm-cells = <3>;
pinctrl-names = "default";
pinctrl-0 = <&lppwm1_pins>;
};
--
1.9.1
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