Re: [PATCH RFC v2 1/6] ARM: pxa: Convert Spitz OHCI to GPIO descriptors

[Andy Shevchenko]

On Tue, Sep 26, 2023 at 05:46:22PM +0200, Duje Mihanović wrote:
> Sharp's Spitz board still uses the legacy GPIO interface for controlling
> a GPIO pin related to the USB host controller.
> 
> Convert this function to use the new GPIO descriptor interface.

...

> +	pxa_ohci->usb_host = gpiod_get_optional(&pdev->dev, "usb-host", GPIOD_OUT_LOW);
> +	if (IS_ERR(pxa_ohci->usb_host))
> +		dev_warn(&pdev->dev, "failed to get USB host GPIO with %pe\n",
> +				pxa_ohci->usb_host);

No, with _optional() you should terminate the execution and bail out. The idea
behind *optional* is that we skip errors only for the cases when GPIO is not
provided. Otherwise we need to handle the errors (yes, the dev_err() has to
be used).

-- 
With Best Regards,
Andy Shevchenko