kernel/linux.git/drivers/usb/phy/phy-generic.c, branch v7.1-rc5

usb: phy: generic: Convert to device property API

2026-01-23T16:16:54+00:00

Convert from OF properties to device properties, to make the driver more generic and simpler. Signed-off-by: Geert Uytterhoeven Link: https://patch.msgid.link/e69adff1d6ca7b26cd2a4117d45392e05470d27c.1769004444.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Convert to dev_err_probe()

2026-01-23T16:16:54+00:00

Convert the remaining error handling in the probe path to use the dev_err_probe() helper, to make sure error messages and codes are not missed, and recorded properly. Signed-off-by: Geert Uytterhoeven Link: https://patch.msgid.link/68739eb048a394fe9198080e4e57503bb2fb9b64.1769004444.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Convert to devm_clk_get_optional()

2026-01-23T16:16:54+00:00

The generic USB PHY driver uses the existence of the "clocks" property to see if a clock is optional or not. Use devm_clk_get_optional() instead, which exists for this purpose. As usb_phy_generic.clk is now either a valid clock pointer or NULL, and all clock operations handle NULL pointers gracefully, several IS_ERR() checks can be removed, simplifying the code. Signed-off-by: Geert Uytterhoeven ... Link: https://patch.msgid.link/5cc21d821edf5d40f56a74cd251bb1b982876b72.1769004444.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Always use dev in usb_phy_generic_probe()

2026-01-23T16:16:54+00:00

usb_phy_generic_probe() already has a "dev" variable that serves as a shorthand for "&pdev->dev". Use it where appropriate, to shorten the code. Signed-off-by: Geert Uytterhoeven Link: https://patch.msgid.link/df4ce4bac088f0a4703dd8a3d1255b9072c0b8c6.1769004444.git.geert+renesas@glider.be Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Use proper helper for property detection

2025-02-03T15:39:56+00:00

Since commit c141ecc3cecd7 ("of: Warn when of_property_read_bool() is used on non-boolean properties") a warning is raised if this function is used for property detection. of_property_present() is the correct helper for this. Signed-off-by: Alexander Stein Link: https://lore.kernel.org/r/20250120144251.580981-1-alexander.stein@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman

usb: Switch back to struct platform_driver::remove()

2024-10-04T13:13:03+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/usb to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20240924084329.53094-2-u.kleine-koenig@baylibre.com Signed-off-by: Greg Kroah-Hartman

usb: phy-generic: add short delay after pulling the reset pin

2024-04-09T15:37:35+00:00

After pulling the reset pin some phys are not immediately ready. We add a short delay of at least 10 ms to ensure that the phy can be properly used. Signed-off-by: Michael Grzeschik Link: https://lore.kernel.org/r/20240402-phy-misc-v1-1-de5c17f93f17@pengutronix.de Signed-off-by: Greg Kroah-Hartman

Revert "usb: phy: generic: Get the vbus supply"

2024-03-26T13:57:22+00:00

This reverts commit 75fd6485cccef269ac9eb3b71cf56753341195ef. This patch was applied twice by accident, causing probe failures. Revert the accident. Signed-off-by: Alexander Stein Fixes: 75fd6485ccce ("usb: phy: generic: Get the vbus supply") Cc: stable Reviewed-by: Sean Anderson Link: https://lore.kernel.org/r/20240314092628.1869414-1-alexander.stein@ew.tq-group.com Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Disable vbus on removal

2024-01-28T01:37:22+00:00

If we enabled vbus, we need to balance that with a disable. Signed-off-by: Sean Anderson Link: https://lore.kernel.org/r/20240123225111.1629405-5-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Implement otg->set_vbus

2024-01-28T01:37:22+00:00

Some USB controller drivers call otg_set_vbus when entering host or device mode. Implement this callback so that VBUS can be turned on and off automatically. This is especially useful when there is no property for a VBUS supply in the controller's binding. This results in a change in semantics of the vbus_draw regulator. Whereas before it represented the VBUS supplied by an A-Device when we acted as a B-Device, now it represents an internal VBUS source. Accordingly, we no longer set the current limit or enable/disable the bus from nop_gpio_vbus_thread. Because this supply was never initialized before the previous commit, there should be no change in behavior. Signed-off-by: Sean Anderson Link: https://lore.kernel.org/r/20240123225111.1629405-4-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman