kernel/linux.git/drivers/usb/phy/phy-generic.c, branch v6.19.11

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

usb: phy: generic: Get the vbus supply

2024-01-28T01:37:21+00:00

While support for working with a vbus was added, the regulator was never actually gotten (despite what was documented). Fix this by actually getting the supply from the device tree. Fixes: 7acc9973e3c4 ("usb: phy: generic: add vbus support") Signed-off-by: Sean Anderson Link: https://lore.kernel.org/r/20240123225111.1629405-3-sean.anderson@seco.com Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: add suspend support for regulator

2023-11-23T12:32:43+00:00

Disable the vcc regulator on suspend and enable it on resume. Signed-off-by: Stefan Eichenberger Signed-off-by: Francesco Dolcini Link: https://lore.kernel.org/r/20231027122955.22123-1-francesco@dolcini.it Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Convert to platform remove callback returning void

2023-03-23T16:35:27+00:00

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20230319092428.283054-5-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

usb: phy: generic: Add wakeup capability

2022-11-09T11:36:07+00:00

In case USB phy is the wakeup source, enable its wakeup capability. Signed-off-by: Li Jun Link: https://lore.kernel.org/r/1666764742-4201-2-git-send-email-jun.li@nxp.com Signed-off-by: Greg Kroah-Hartman