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| author | Michael Welling <mwelling@ieee.org> | 2015-11-02 22:54:23 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2015-11-03 14:54:22 -0800 |
| commit | a748941c95d2cd8f1a23e4e716b3178179c7fdbe (patch) | |
| tree | eeee688fb74cf193a4223a27d1d01fdd8b998c9f /Documentation | |
| parent | ef3b98c2c3fc6a73ec1e98a463c38329e66c6b95 (diff) | |
| download | linux-a748941c95d2cd8f1a23e4e716b3178179c7fdbe.tar.gz linux-a748941c95d2cd8f1a23e4e716b3178179c7fdbe.tar.bz2 linux-a748941c95d2cd8f1a23e4e716b3178179c7fdbe.zip | |
Input: tsc2004 - add support for tsc2004
This adds support for the i2c based tsc2004 touchscreen controller.
Signed-off-by: Michael Welling <mwelling@ieee.org>
Acked-by: Rob Herring <robh@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 | 34 |
1 files changed, 28 insertions, 6 deletions
diff --git a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt index 09089a6d69ed..b80c04b0e5c0 100644 --- a/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt +++ b/Documentation/devicetree/bindings/input/touchscreen/tsc2005.txt @@ -1,14 +1,15 @@ -* Texas Instruments tsc2005 touchscreen controller +* Texas Instruments tsc2004 and tsc2005 touchscreen controllers Required properties: - - compatible : "ti,tsc2005" - - reg : SPI device address - - spi-max-frequency : Maximal SPI speed + - compatible : "ti,tsc2004" or "ti,tsc2005" + - reg : Device address - interrupts : IRQ specifier - - reset-gpios : GPIO specifier - - vio-supply : Regulator specifier + - spi-max-frequency : Maximum SPI clocking speed of the device + (for tsc2005) Optional properties: + - vio-supply : Regulator specifier + - reset-gpios : GPIO specifier for the controller reset line - 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 @@ -18,6 +19,27 @@ Optional properties: 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>; + }; +} + &mcspi1 { tsc2005@0 { compatible = "ti,tsc2005"; |