> > +static int gpio_joy_probe(struct platform_device *pdev) {
> > + struct device *dev = &pdev->dev;
> > + struct input_dev *input;
> > + struct gpio_joy_drvdata *ddata;
> > + int i, err;
> > + unsigned int debounce_ms;
>
> This should be a u32 given you pass it to a function expecting a u32 pointer.
>
> > +
> > + ddata = devm_kzalloc(dev, sizeof(struct gpio_joy_drvdata),
> > +GFP_KERNEL);
>
> Use sizeof(*ddata)
>
> [...]
>
> > + return 0;
> > +fail:
> > + return err;
> > +}
>
> Given there's no cleanup, the fail path seems redundant.
>
> [...]
>
> > +static const struct of_device_id gpio_joy_of_match[] = {
> > + { .compatible = DRV_NAME, },
> > + { },
> > +};
>
> The compatible string should be independent of DRV_NAME, because it must
> match the binding. The driver can be arbitrarily and independently renamed.
>
I'll address all of these comments, thanks for reviewing!
Hans
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