[PATCH 4/4] Input: tsc2004 - Document ts2004 dt bindings

Michael Welling
2015-10-31T00:42:19Z

Adds documentation for the devicetree bindings of the new tsc2004 driver.

Signed-off-by: Michael Welling <mwelling@ieee.org>
---
.../bindings/input/touchscreen/tsc2005.txt | 39 ++++++++++++++++++++++
1 file changed, 39 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
index 09089a6..27c6082 100644
--- a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
+++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt
@@ -1,3 +1,42 @@
+* Texas Instruments tsc2004 touchscreen controller
+
+Required properties:
+ - compatible : "ti,tsc2004"
+ - interrupts : IRQ specifier
+ - vio-supply : Regulator specifier
+
+Optional properties:
+ - reset-gpios : GPIO specifier
+ - ti,x-plate-ohms : integer, resistance of the touchscreen's X plates
+ in ohm (defaults to 280)
+ - ti,esd-recovery-timeout-ms : integer, if the touchscreen does not respond after
+ the configured time (in milli seconds), the driver
+ will reset it. This is disabled by default.
+ - properties defined in touchscreen.txt
+
+Example:
+
+&i2c3 {
+ tsc2004@48 {
+ compatible = "ti,tsc2004";
+ reg = <0x48>;
+ vio-supply = <&vio>;
+
+ reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>;
+ interrupts-extended = <&gpio1 27 IRQ_TYPE_EDGE_RISING>;
+
+ touchscreen-fuzz-x = <4>;
+ touchscreen-fuzz-y = <7>;
+ touchscreen-fuzz-pressure = <2>;
+ touchscreen-size-x = <4096>;
+ touchscreen-size-y = <4096>;
+ touchscreen-max-pressure = <2048>;
+
+ ti,x-plate-ohms = <280>;
+ ti,esd-recovery-timeout-ms = <8000>;
+ };
+}
+
* Texas Instruments tsc2005 touchscreen controller

Required properties:
--
2.1.4