On Friday 16 October 2015 21:27:11 H. Nikolaus Schaller wrote:
> Am 16.10.2015 um 21:06 schrieb Arnd Bergmann <arnd@xxxxxxxx>:
>
> > On Friday 16 October 2015 20:08:35 H. Nikolaus Schaller wrote:
> >> +
> >> +static int w2sg_data_probe(struct platform_device *pdev)
> >> +{
> >> + struct w2sg_pdata *pdata = dev_get_platdata(&pdev->dev);
> >> + struct w2sg_data *data;
> >> + struct rfkill *rf_kill;
> >> + int err;
> >> +
> >> + pr_debug("%s()\n", __func__);
> >> +
> >> + if (pdev->dev.of_node) {
> >> + struct device *dev = &pdev->dev;
> >> + enum of_gpio_flags flags;
> >> +
> >> + pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
> >> + if (!pdata)
> >>
> >
> > Why is this a platform_device and not a serio_device?
>
> I can't find a struct serio_device. What is that?
>
Sorry, I meant 'struct serio', see drivers/input/serio/
This is an existing infrastructure that is used for devices attached
to a dumb serial device (rs232 or 8042/psaux usually). They have
a user interface for connecting a driver to a port, but you should
be able to do it all in the kernel as well if DT has the information
what device is connected.
Arnd
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