* Sitronix st1232 touchscreen controller

Required properties:
- compatible: must be "sitronix,st1232"
- reg: I2C address of the chip
- interrupts: interrupt to which the chip is connected

Optional properties:
- gpios: a phandle to the reset GPIO

Example:

        i2c@00000000 {
                /* ... */

                touchscreen@55 {
                        compatible = "sitronix,st1232";
                        reg = <0x55>;
                        interrupts = <2 0>;
                        gpios = <&gpio1 166 0>;
                };

                /* ... */
        };