kernel/git/stable/linux.git/drivers/phy/tegra/Kconfig, branch master

phy: tegra: xusb: Make USB_CONN_GPIO select conditional on GPIOLIB

2026-05-10T11:13:13+00:00

kconfiglint reports: K006: config PHY_TEGRA_XUSB selects USB_CONN_GPIO which depends on GPIOLIB, but PHY_TEGRA_XUSB does not depend on GPIOLIB K002: config PHY_TEGRA_XUSB selects visible symbol USB_CONN_GPIO which has dependencies USB_CONN_GPIO was introduced in commit 4602f3bff266 ("usb: common: add USB GPIO based connection detection driver") with a hard dependency on GPIOLIB, since it needs GPIO pins to detect USB cable connection state. Commit f67213cee2b3 ("phy: tegra: xusb: Add usb-role-switch support") added `select USB_CONN_GPIO` to PHY_TEGRA_XUSB to support USB role switching via GPIO-based detection. At that time, PHY_TEGRA_XUSB depended only on `ARCH_TEGRA`, and both the ARM32 and ARM64 ARCH_TEGRA Kconfig definitions select GPIOLIB, so the missing explicit GPIOLIB guard was not a functional problem — GPIOLIB is always available when ARCH_TEGRA is enabled. Later, commit 0d5c9bc7c680 ("phy: tegra: Select USB_COMMON for usb_get_maximum_speed()") added `depends on USB_SUPPORT` but still did not address the GPIOLIB gap. The select can force USB_CONN_GPIO on without its GPIOLIB dependency being satisfied if the Kconfig dependencies were ever restructured. Make the select conditional with `select USB_CONN_GPIO if GPIOLIB` to make the dependency explicit. This mirrors how other drivers handle optional GPIO-dependent selects throughout the kernel. Assisted-by: Claude:claude-opus-4-6 kconfiglint Signed-off-by: Sasha Levin Link: https://patch.msgid.link/20260426000309.54959-1-sashal@kernel.org Signed-off-by: Vinod Koul

phy: tegra: p2u: Broaden architecture dependency

2025-05-14T11:28:04+00:00

Replace the ARCH_TEGRA_194_SOC || ARCH_TEGRA_234_SOC dependency with a more generic ARCH_TEGRA check for the Tegra194 PIPE2UPHY PHY driver. This allows the PHY driver to be built on all Tegra platforms instead of being limited to specific SoCs. Link: https://patchwork.kernel.org/project/linux-pci/patch/20250128044244.2766334-1-vidyas@nvidia.com/ Signed-off-by: Vidya Sagar Acked-by: Thierry Reding Reviewed-by: Niklas Cassel Link: https://lore.kernel.org/r/20250508052021.4135874-1-vidyas@nvidia.com Signed-off-by: Vinod Koul

phy: tegra194: p2u: Allow to enable driver on Tegra234

2024-12-04T13:45:48+00:00

Commit de6026682569 ("phy: tegra: Add PCIe PIPE2UPHY support for Tegra234") add support for Tegra234 to the tegra194-p2u PHY driver. But the driver is currently not selectable when Tegra234 SoC support is enabled. Update the Kconfig entry to allow the driver to be built when support the Tegra234 SoC is enabled. Signed-off-by: Lars-Peter Clausen Link: https://lore.kernel.org/r/20241201002519.3468-1-lars@metafoo.de Signed-off-by: Vinod Koul

phy: tegra: Select USB_COMMON for usb_get_maximum_speed()

2020-04-16T13:05:53+00:00

The usb_get_maximum_speed() function is part of the usb-common module, so enable it by selecting the corresponding Kconfig symbol. While at it, also make sure to depend on USB_SUPPORT because USB_PHY requires that. This can lead to Kconfig conflicts if USB_SUPPORT is not enabled while attempting to enable PHY_TEGRA_XUSB. Reported-by: kbuild test robot Suggested-by: Nathan Chancellor Signed-off-by: Thierry Reding Link: https://lore.kernel.org/r/20200330101038.2422389-1-thierry.reding@gmail.com Signed-off-by: Greg Kroah-Hartman

phy: tegra: Select USB_PHY

2020-03-19T13:17:06+00:00

I have hit the following build error: armv7a-hardfloat-linux-gnueabi-ld: drivers/phy/tegra/xusb.o: in function `tegra_xusb_port_unregister': xusb.c:(.text+0x2ac): undefined reference to `usb_remove_phy' armv7a-hardfloat-linux-gnueabi-ld: drivers/phy/tegra/xusb.o: in function `tegra_xusb_setup_ports': xusb.c:(.text+0xf30): undefined reference to `usb_add_phy_dev' PHY_TEGRA_XUSB should select USB_PHY because it uses symbols defined in the code enabled by that. Fixes: 23babe30fb45d ("phy: tegra: xusb: Add usb-phy support") Signed-off-by: Corentin Labbe Signed-off-by: Thierry Reding

phy: tegra: xusb: Add usb-role-switch support

2020-03-19T12:54:35+00:00

If usb-role-switch property is present in USB 2 port, register usb-role-switch to receive usb role changes. Signed-off-by: Nagarjuna Kristam Acked-by: Kishon Vijay Abraham I [treding@nvidia.com: rebase onto Greg's usb-next branch] Signed-off-by: Thierry Reding

phy: tegra: Add PCIe PIPE2UPHY support

2019-08-13T15:01:15+00:00

Synopsys DesignWare core based PCIe controllers in Tegra 194 SoC interface with Universal PHY (UPHY) module through a PIPE2UPHY (P2U) module. For each PCIe lane of a controller, there is a P2U unit instantiated at hardware level. This driver provides support for the programming required for each P2U that is going to be used for a PCIe controller. Signed-off-by: Vidya Sagar Signed-off-by: Lorenzo Pieralisi Acked-by: Kishon Vijay Abraham I Acked-by: Thierry Reding

treewide: Add SPDX license identifier - Makefile/Kconfig

2019-05-21T08:50:46+00:00

Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman

phy: Add Tegra XUSB pad controller support

2016-04-29T14:44:47+00:00

Add a new driver for the XUSB pad controller found on NVIDIA Tegra SoCs. This hardware block used to be exposed as a pin controller, but it turns out that this isn't a good fit. The new driver and DT binding much more accurately describe the hardware and are more flexible in supporting new SoC generations. Acked-by: Kishon Vijay Abraham I Signed-off-by: Thierry Reding