Stuff

static int htcartemis_get_pendown_state(void)
{
        return !omap_get_gpio_datain(76);
}

static const struct ads7846_platform_data htcartemis_ts_info = {
        .model                  = 7846,
        .vref_delay_usecs       = 100,  /* internal, no capacitor */
        .x_plate_ohms           = 419,
        .y_plate_ohms           = 486,
        .get_pendown_state      = htcartemis_get_pendown_state,
};

static struct spi_board_info __initdata htcartemis_boardinfo[] = { {
        /* MicroWire (bus 2) CS0 has an ads7846e */
        .modalias               = "ads7846",
        .platform_data          = &htcartemis_ts_info,
        .irq                    = OMAP_GPIO_IRQ(76),
        .max_speed_hz           = 120000 /* max sample rate at 3V */
                                        * 26 /* command + data + overhead */,
        .bus_num                = 2,
        .chip_select            = 0,
} };