Am 31.01.2017 um 03:32 schrieb John Youn: > On 1/28/2017 2:06 PM, Heiner Kallweit wrote: >> Supplies for vusb_a and vusb_d are needed only on a minority of systems >> supported by the dwc2 driver (AFAIK systems with Samsung SoCs). >> >> On all other systems this results in these harmless but annoying >> warnings: >> >> c9000000.usb supply vusb_d not found, using dummy regulator >> c9000000.usb supply vusb_a not found, using dummy regulator >> >> Introduce a configuration parameter to ignore the supplies on >> systems not needing it. > > You can probably just check for the existence of those bindings. Or > possibly use devm_regulator_get_optional(). > Right, that we could do to silence the warning. But then we would loose the warning on systems where these supplies are mandatory (in case somebody adds a system with such a SoC and forgets to define the supplies in the DT). > Also, reviewing this code, it looks like vusb_d and vusb_a should have > been documented as dwc2 bindings but never were... > > John > -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
