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| author |   Alexander Stein <alexander.stein@systec-electronic.com> | 2014-12-01 08:26:00 +0100 |
|---|---|---|
| committer |   Linus Walleij <linus.walleij@linaro.org> | 2014-12-03 14:34:45 +0100 |
| commit | a4e635544f65021c346f2097daa0c8dd63dd6221 (patch) | |
| tree | 0221e40e110afa800db6e4fa210fdcaf4e78f998 /Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt | |
| parent | gpio: fix deferred probe detection for legacy API (diff) | |
| download | linux-dev-a4e635544f65021c346f2097daa0c8dd63dd6221.tar.xz linux-dev-a4e635544f65021c346f2097daa0c8dd63dd6221.zip | |
gpio: mcp23s08: Add option to configure IRQ output polarity as active high
Default is active low, but if property is specified in DT set INTPOL flag.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to '')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/gpio-mcp23s08.txt | 2 |
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 { |