forked from Minki/linux
8770d0898a
Fix dts to match what the Linux kernel expects. This works around touchscreen problems in 4.1 linux on Nokia n900. Signed-off-by: Pavel Machek <pavel@ucw.cz> Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
43 lines
1.2 KiB
Plaintext
43 lines
1.2 KiB
Plaintext
* 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-size-x = <4096>;
|
|
touchscreen-size-y = <4096>;
|
|
touchscreen-max-pressure = <2048>;
|
|
|
|
ti,x-plate-ohms = <280>;
|
|
ti,esd-recovery-timeout-ms = <8000>;
|
|
};
|
|
}
|