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-rw-r--r--dts/Bindings/pinctrl/pinctrl-mcp23s08.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/dts/Bindings/pinctrl/pinctrl-mcp23s08.txt b/dts/Bindings/pinctrl/pinctrl-mcp23s08.txt
index 9c451c2..a5a8322 100644
--- a/dts/Bindings/pinctrl/pinctrl-mcp23s08.txt
+++ b/dts/Bindings/pinctrl/pinctrl-mcp23s08.txt
@@ -45,6 +45,8 @@ Optional properties:
- first cell is the pin number
- second cell is used to specify flags.
- interrupt-controller: Marks the device node as a interrupt controller.
+- drive-open-drain: Sets the ODR flag in the IOCON register. This configures
+ the IRQ output as open drain active low.
Optional device specific properties:
- microchip,irq-mirror: Sets the mirror flag in the IOCON register. Devices