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mfd: stmpe: Document DT binding for irq_over_gpio

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STMPE now supports using a GPIO as an IRQ source.  Document the device
tree binding for this option.

Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Sean Cross 2014-09-12 11:18:34 +08:00 committed by Lee Jones
parent 851ec59614
commit 0bf1f0cda1
1 changed files with 1 additions and 0 deletions
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Documentation/devicetree/bindings/mfd/stmpe.txt
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@ -13,6 +13,7 @@ Optional properties:
- interrupt-parent : Specifies which IRQ controller we're connected to
- wakeup-source : Marks the input device as wakable
- st,autosleep-timeout : Valid entries (ms); 4, 16, 32, 64, 128, 256, 512 and 1024
- irq-gpio : If present, which GPIO to use for event IRQ
Example: