Commit 0ce0f9d0 authored by Linus Walleij's avatar Linus Walleij Committed by Greg Kroah-Hartman
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usb: phy: phy-gpio-vbus-usb: Add device tree probing 



Make it possible to probe the GPIO VBUS detection driver
from the device tree compatible for GPIO USB B connectors.

Since this driver is using the "gpio-usb-b-connector"
compatible, it is important to discern it from the role
switch connector driver (which does not provide a phy),
so we add some Kconfig text and depend on !USB_CONN_GPIO.

Cc: Rob Herring <robh@kernel.org>
Cc: Prashant Malani <pmalani@chromium.org>
Cc: Felipe Balbi <balbi@kernel.org>
Signed-off-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221106230506.1646101-1-linus.walleij@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent a8bc8cc1

drivers/usb/phy/Kconfig

+5 −1
Original line number Diff line number Diff line
@@ -93,12 +93,16 @@ config USB_GPIO_VBUS 
	tristate "GPIO based peripheral-only VBUS sensing 'transceiver'"

	depends on GPIOLIB || COMPILE_TEST

	depends on USB_GADGET || !USB_GADGET # if USB_GADGET=m, this can't be 'y'

	depends on !USB_CONN_GPIO

	select USB_PHY

	help

	  Provides simple GPIO VBUS sensing for controllers with an

	  internal transceiver via the usb_phy interface, and

	  optionally control of a D+ pullup GPIO as well as a VBUS

	  current limit regulator.

	  current limit regulator. This driver is for devices that do

	  NOT support role switch. OTG devices that can do role switch

	  (master/peripheral) shall use the USB based connection

	  detection driver USB_CONN_GPIO.



config OMAP_OTG

	tristate "OMAP USB OTG controller driver"

drivers/usb/phy/phy-gpio-vbus-usb.c

+12 −0
Original line number Diff line number Diff line
@@ -366,12 +366,24 @@ static const struct dev_pm_ops gpio_vbus_dev_pm_ops = { 


MODULE_ALIAS("platform:gpio-vbus");



/*

 * NOTE: this driver matches against "gpio-usb-b-connector" for

 * devices that do NOT support role switch.

 */

static const struct of_device_id gpio_vbus_of_match[] = {

	{

		.compatible = "gpio-usb-b-connector",

	},

	{},

};



static struct platform_driver gpio_vbus_driver = {

	.driver = {

		.name  = "gpio-vbus",

#ifdef CONFIG_PM

		.pm = &gpio_vbus_dev_pm_ops,

#endif

		.of_match_table = gpio_vbus_of_match,

	},

	.probe		= gpio_vbus_probe,

	.remove		= gpio_vbus_remove,