Re: [PATCH v6] Touchscreen driver for FT5x06 based EDT displays

[Simon Budig <simon.budig@kernelconcepts.de>]

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On 06/23/2012 01:48 AM, simon.budig@kernelconcepts.de wrote:
> This is a new iteration of the driver for the edt ft5x06 based 
> polytouch series of touchscreens. It contains most of the changes
> from Dmitry. I did not incorporate the attribute is_visible-stuff,
> since it did not work as expected for me. Also I do not release the
> reset pin.

I should add that this version might need a change in the registration
process in the board file, since it now uses the irq field of the i2c
entry instead of determining it from the irq-pin platform data.

So if your platform doesn't automatically configure the gpio pin when
requesting a gpio based IRQ you need to specify both for the driver to
configure it:

For my i.mx28 based board it looks like this:

static struct edt_ft5x06_platform_data edt_ft5x06_pdata = {
        .irq_pin = MXS_GPIO_NR(2, 5),
        .reset_pin = MXS_GPIO_NR(2, 6),
};

static struct i2c_board_info tx28_stk5v3_i2c_boardinfo[] __initdata = {
[...]
        {
                I2C_BOARD_INFO("edt-ft5x06", 0x38),
                .platform_data  = &edt_ft5x06_pdata,
                .irq = MXS_GPIO_IRQ_START + MXS_GPIO_NR(2, 5),
        },
};

I hope this helps.
         Simon

- -- 
       Simon Budig                        kernel concepts GmbH
       simon.budig@kernelconcepts.de      Sieghuetter Hauptweg 48
       +49-271-771091-17                  D-57072 Siegen

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