This series adds a driver for the regulators in X-Powers AXPxxx PMICs. It supports everything except regulators shared with GPIO pins. Those have a different register interface, so they may need a separate driver.
Regulator setup in U-Boot proper is needed for Ethernet and HDMI/LCD display output. For some SoCs (H616), this driver could possibly be used for the DRAM regulator setup done in SPL. Older SoCs do all of their regulator setup in SPL. Some of that is probably necessary, but I think a lot of it is not and can be deferred to U-Boot proper or Linux; that's just where it was convenient to initialize the PMIC at the time.
The main goal here is to replace the corresponding code in TF-A, both because of TF-A size constraints, and because the TF-A code is too simple/overzealous and breaks EPHY power sequencing on some boards.
Samuel Holland (3): power: pmic: axp: Provide a variant ID in the driver data power: regulator: Add a driver for AXP PMIC regulators power: pmic: axp: Bind regulators from the DT
drivers/power/pmic/axp.c | 36 ++- drivers/power/regulator/Kconfig | 14 ++ drivers/power/regulator/Makefile | 1 + drivers/power/regulator/axp_regulator.c | 308 ++++++++++++++++++++++++ include/axp_pmic.h | 12 + 5 files changed, 362 insertions(+), 9 deletions(-) create mode 100644 drivers/power/regulator/axp_regulator.c