From 39aba4714da62946ef9d081ab6e41462517ccb34 Mon Sep 17 00:00:00 2001 From: Phil Reid Date: Mon, 19 Feb 2018 17:25:19 +0800 Subject: dt-bindings: pinctrl: mcp23s08: add documentation for drive-open-drain This flag set the mcp23s08 device irq type to open drain active low. Acked-by: Rob Herring Signed-off-by: Phil Reid Signed-off-by: Linus Walleij --- Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt | 2 ++ 1 file changed, 2 insertions(+) (limited to 'Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt') diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt index 9c451c20dda4..a5a8322a31bd 100644 --- a/Documentation/devicetree/bindings/pinctrl/pinctrl-mcp23s08.txt +++ b/Documentation/devicetree/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 -- cgit v1.2.3