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authorSiebren Vroegindeweij <siebren.vroegindeweij@hotmail.com>2016-09-15 15:38:02 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2016-09-26 20:01:58 -0700
commit9ca5bf5029b6c17ce50b34581242f71f9b777ae7 (patch)
treeb0c26bc3f1e1c6c27813a75562490779a42d1038 /Documentation/devicetree/bindings/input/touchscreen
parent51db013767c46dc0243a8945085b5a229d9bd281 (diff)
Input: add support for Elan eKTF2127 touchscreen controller
This adds a driver for the Elan eKTF2127 touchscreen controller, which speaks an i2c protocol which is distinctly different from the already supported eKTH controllers. Signed-off-by: Michel Verlaan <michel.verl@gmail.com> Signed-off-by: Siebren Vroegindeweij <siebren.vroegindeweij@hotmail.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/input/touchscreen')
-rw-r--r--Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt27
1 files changed, 27 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
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+++ b/Documentation/devicetree/bindings/input/touchscreen/ektf2127.txt
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+* Elan eKTF2127 I2C touchscreen controller
+
+Required properties:
+ - compatible : "elan,ektf2127"
+ - reg : I2C slave address of the chip (0x40)
+ - interrupt-parent : a phandle pointing to the interrupt controller
+ serving the interrupt for this chip
+ - interrupts : interrupt specification for the ektf2127 interrupt
+ - power-gpios : GPIO specification for the pin connected to the
+ ektf2127's wake input. This needs to be driven high
+ to take ektf2127 out of it's low power state
+
+For additional optional properties see: touchscreen.txt
+
+Example:
+
+i2c@00000000 {
+ ektf2127: touchscreen@15 {
+ compatible = "elan,ektf2127";
+ reg = <0x15>;
+ interrupt-parent = <&pio>;
+ interrupts = <6 11 IRQ_TYPE_EDGE_FALLING>
+ power-gpios = <&pio 1 3 GPIO_ACTIVE_HIGH>;
+ touchscreen-inverted-x;
+ touchscreen-swapped-x-y;
+ };
+};