gemini: Add kernel v6.1 patches

[openwrt/openwrt.git] / target / linux / gemini / patches-6.1 / 0001-usb-phy-phy-gpio-vbus-usb-Add-device-tree-probing.patch

diff --git a/target/linux/gemini/patches-6.1/0001-usb-phy-phy-gpio-vbus-usb-Add-device-tree-probing.patch b/target/linux/gemini/patches-6.1/0001-usb-phy-phy-gpio-vbus-usb-Add-device-tree-probing.patch
new file mode 100644 (file)
index 0000000..943b166
--- /dev/null
+++ b/target/linux/gemini/patches-6.1/0001-usb-phy-phy-gpio-vbus-usb-Add-device-tree-probing.patch
@@ -0,0 +1,67 @@
+From d5a026cc8306ccd3e99e1455c87e38f8e6fa18df Mon Sep 17 00:00:00 2001
+From: Linus Walleij <linus.walleij@linaro.org>
+Date: Mon, 7 Nov 2022 00:05:06 +0100
+Subject: [PATCH 01/29] 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: Linus Walleij <linus.walleij@linaro.org>
+Link: https://lore.kernel.org/r/20221106230506.1646101-1-linus.walleij@linaro.org
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+--- a/drivers/usb/phy/Kconfig
++++ b/drivers/usb/phy/Kconfig
+@@ -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"
+--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
++++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
+@@ -366,12 +366,24 @@ static const struct dev_pm_ops gpio_vbus
+ 
+ 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,