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-rw-r--r--Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt2
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
index c306a2d0f2b1..f3332b9a8ed4 100644
--- a/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
+++ b/Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt
@@ -57,6 +57,8 @@ Optional device specific properties:
occurred on. If it is not set, the interrupt are only generated for the
bank they belong to.
On devices with only one interrupt output this property is useless.
+- microchip,irq-active-high: Sets the INTPOL flag in the IOCON register. This
+ configures the IRQ output polarity as active high.
Example I2C (with interrupt):
gpiom1: gpio@20 {

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