[PATCH v5 1/6] mfd: fsl imx25 Touchscreen ADC driver

[Fabio Estevam]

On Mon, Feb 16, 2015 at 11:38 AM, Lee Jones <lee.jones at linaro.org> wrote:

>> +static int mx25_tsadc_setup_irq(struct platform_device *pdev,
>> +                             struct mx25_tsadc *tsadc)
>> +{
>> +     struct device *dev = &pdev->dev;
>> +     struct device_node *np = dev->of_node;
>> +     int irq;
>> +
>> +     irq = platform_get_irq(pdev, 0);
>> +     if (irq < 0) {
>
> What if 0 is returned?

Then  imx25.dtsi would be passing irq=0 for the ADC, which would be
totally wrong.