A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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gpio: stmpe: Add DT support for stmpe gpio

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This patch allows the STMPE GPIO driver to be successfully probed and
initialised when Device Tree support is enabled. Bindings are mentioned in
Documentation too.

Acked-by: Lee Jones <[email protected]>
Signed-off-by: Vipul Kumar Samar <[email protected]>
Signed-off-by: Viresh Kumar <[email protected]>
Signed-off-by: Linus Walleij <[email protected]>
This commit is contained in:
Vipul Kumar Samar 2012-11-26 17:06:51 +05:30 • committed by Linus Walleij
commit 86605cfe8c
3 changed files with 28 additions and 2 deletions
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18
Documentation/devicetree/bindings/gpio/gpio-stmpe.txt Normal file
View file

@ -0,0 +1,18 @@
STMPE gpio
----------
Required properties:
- compatible: "st,stmpe-gpio"
Optional properties:
- st,norequest-mask: bitmask specifying which GPIOs should _not_ be requestable
due to different usage (e.g. touch, keypad)
Node name must be stmpe_gpio and should be child node of stmpe node to which it
belongs.
Example:
stmpe_gpio {
compatible = "st,stmpe-gpio";
st,norequest-mask = <0x20>; //gpio 5 can't be used
};