Add the usb5744/usb2744 hub driver which does the reset gpio toggling and the i2c initialization sequence.
Tested the USB5744/USB2744 usb hub for usb0, usb1 with the DT nodes on KR260 AMD board.
Changes in v2: - Added the power_on_reset_us variable, for post-reset time. - Removed the DM_REGULATOR ifdef around the regulator API's. - Rename the i2c_init and fixed the return for the API's.
Changes in v3: - Rename i2c_init to init. - Fixed the return values for the dev_read_phandle_with_args API. - Removed the unneccessary cast uint8_t *.
Changes in v4: - Fixed the indentation issues. - Fixed the Reverse xmas tree for indentation. - Replaced dev_dbg to dev_err in all places.
Changes in v5: - Add new API for usb_onboard_hub_reset.
Changes in v6: - Add return for usb_onboard_hub_reset in probe.
Changes in v7: - Sort the structure onboard_hub_data data. - Remove the variable gpio_desc * for dm_gpio_free().
Changes in v8: - Sort the list for usb5744_data.
Changes in v9: - Added the Reviewer tag for patches 1/4, which got missed in v8.
Changes in v10: - Removed the GPIOD_ACTIVE_LOW flag in the devm_gpiod_get_optional.
Changes in v11: - Added the usb2514_hub_data and updated the reset_us to 1.
Changes in v12: - Updated the power on delay for usb2514_hub. - Updated the usb2514_hub_data in the patch 1/7.
Changes in v13: - Updated the reset and power on delay as per the USB5744 specification.
Changes in v14: - Remove the 6/7 patches from this series.
Venkatesh Yadav Abbarapu (5): usb: onboard-hub: Add reset-gpio support usb: onboard-hub: Fix the return values of regulator APIs usb: onboard-hub: add support for Microchip USB5744 usb: onboard-hub: Add i2c initialization for usb5744 hub usb: onboard-hub: Bail out if peer hub is already probed
common/usb_onboard_hub.c | 195 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 190 insertions(+), 5 deletions(-)