The R-Car SoCs PWM Timer cannot output duty zero. So, this patch
adds a specific gpio property to output it.
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
index fbd6a4f..6acaaeb 100644
--- a/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
+++ b/Documentation/devicetree/bindings/pwm/renesas,pwm-rcar.txt
@@ -26,6 +26,9 @@ Required Properties:
- pinctrl-0: phandle, referring to a default pin configuration node.
- pinctrl-names: Set to "default".
+Optional properties:
+- renesas,duty-zero-gpios: Specify GPIO for outputting duty zero.
+
Example: R8A7743 (RZ/G1M) PWM Timer node
pwm0: pwm@e6e30000 {
--
2.7.4
