[PATCH v2 1/4] phy: phy-stih407-usb: Add usb picoPHY driver found on stih407 SoC family

Arnd Bergmann arnd at arndb.de
Tue Sep 9 02:08:11 PDT 2014


On Tuesday 09 September 2014 10:00:15 Peter Griffin wrote:
> This is the generic phy driver for the picoPHY ports used by the
> USB2 and USB3 Host controllers when controlling usb2/1.1 devices. It
> is found on STiH407 SoC family from STMicroelectronics.
> 
> Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro at st.com>
> Signed-off-by: Peter Griffin <peter.griffin at linaro.org>

Looks good overall, just one question:

> +
> +	match = of_match_device(stih407_usb2_picophy_of_match, dev);
> +	if (!match)
> +		return -ENODEV;
....
> +
> +	phy = devm_phy_create(dev, NULL, match->data, NULL);
> +	if (IS_ERR(phy)) {
> +		dev_err(dev, "failed to create Display Port PHY\n");
> +		return PTR_ERR(phy);
> +	}
> +

There is only one entry in the match table, so it always points to
stih407_usb2_picophy_data. Do you have plans to add another set of
operations soon?
If not, just remove the .data pointer and hardcode the operations
in the devm_phy_create call.

	Arnd



More information about the linux-arm-kernel mailing list