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| author | Sebastian Reichel | 2014-05-29 08:57:29 +0200 |
|---|---|---|
| committer | Dmitry Torokhov | 2014-05-29 09:06:00 +0200 |
| commit | a38cfebb56898633687ab337fd53710e63a0aedd (patch) | |
| tree | 1b44393603fc1ae1469e1698238044bd5973dda4 /Documentation | |
| parent | Input: add common DT binding for touchscreens (diff) | |
| download | kernel-qcow2-linux-a38cfebb56898633687ab337fd53710e63a0aedd.tar.gz kernel-qcow2-linux-a38cfebb56898633687ab337fd53710e63a0aedd.tar.xz kernel-qcow2-linux-a38cfebb56898633687ab337fd53710e63a0aedd.zip | |
Input: tsc2005 - add DT support
This adds DT support to the tsc2005 touchscreen driver. It also adds
regulator support to the driver if booted via DT.
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt new file mode 100644 index 000000000000..4b641c7bf1c2 --- /dev/null +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt @@ -0,0 +1,42 @@ +* Texas Instruments tsc2005 touchscreen controller + +Required properties: + - compatible : "ti,tsc2005" + - reg : SPI device address + - spi-max-frequency : Maximal SPI speed + - interrupts : IRQ specifier + - reset-gpios : GPIO specifier + - vio-supply : Regulator specifier + +Optional properties: + - 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: + +&mcspi1 { + tsc2005@0 { + compatible = "ti,tsc2005"; + spi-max-frequency = <6000000>; + reg = <0>; + + vio-supply = <&vio>; + + reset-gpios = <&gpio4 8 GPIO_ACTIVE_HIGH>; /* 104 */ + interrupts-extended = <&gpio4 4 IRQ_TYPE_EDGE_RISING>; /* 100 */ + + touchscreen-fuzz-x = <4>; + touchscreen-fuzz-y = <7>; + touchscreen-fuzz-pressure = <2>; + touchscreen-max-x = <4096>; + touchscreen-max-y = <4096>; + touchscreen-max-pressure = <2048>; + + ti,x-plate-ohms = <280>; + ti,esd-recovery-timeout-ms = <8000>; + }; +} |