diff --git a/drivers/power/regulator/Kconfig b/drivers/power/regulator/Kconfig index c346d03507..eb5aa38c1c 100644 --- a/drivers/power/regulator/Kconfig +++ b/drivers/power/regulator/Kconfig @@ -57,6 +57,13 @@ config SPL_REGULATOR_AXP Enable support in SPL for the regulators (DCDCs, LDOs) in the X-Powers AXP152, AXP2xx, and AXP8xx PMICs. +config REGULATOR_AXP_USB_POWER + bool "Enable driver for X-Powers AXP PMIC USB power supply" + depends on DM_REGULATOR && PMIC_AXP + help + Enable support for reading the USB power supply status from + X-Powers AXP2xx and AXP8xx PMICs. + config DM_REGULATOR_BD71837 bool "Enable Driver Model for ROHM BD71837/BD71847 regulators" depends on DM_REGULATOR && DM_PMIC_BD71837 diff --git a/drivers/power/regulator/Makefile b/drivers/power/regulator/Makefile index 2d97e1033a..d9e0cd5949 100644 --- a/drivers/power/regulator/Makefile +++ b/drivers/power/regulator/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_$(SPL_)DM_REGULATOR) += regulator-uclass.o obj-$(CONFIG_REGULATOR_ACT8846) += act8846.o obj-$(CONFIG_REGULATOR_AS3722) += as3722_regulator.o obj-$(CONFIG_$(SPL_)REGULATOR_AXP) += axp_regulator.o +obj-$(CONFIG_$(SPL_)REGULATOR_AXP_USB_POWER) += axp_usb_power.o obj-$(CONFIG_$(SPL_)DM_REGULATOR_DA9063) += da9063.o obj-$(CONFIG_DM_REGULATOR_MAX77686) += max77686.o obj-$(CONFIG_DM_REGULATOR_NPCM8XX) += npcm8xx_regulator.o diff --git a/drivers/power/regulator/axp_usb_power.c b/drivers/power/regulator/axp_usb_power.c new file mode 100644 index 0000000000..f32fb6a92d --- /dev/null +++ b/drivers/power/regulator/axp_usb_power.c @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: GPL-2.0+ + +#include +#include +#include +#include + +#define AXP_POWER_STATUS 0x00 +#define AXP_POWER_STATUS_VBUS_PRESENT BIT(5) + +static int axp_usb_power_get_enable(struct udevice *dev) +{ + int ret; + + ret = pmic_reg_read(dev->parent, AXP_POWER_STATUS); + if (ret < 0) + return ret; + + return !!(ret & AXP_POWER_STATUS_VBUS_PRESENT); +} + +static const struct dm_regulator_ops axp_usb_power_ops = { + .get_enable = axp_usb_power_get_enable, +}; + +static int axp_usb_power_probe(struct udevice *dev) +{ + struct dm_regulator_uclass_plat *uc_plat = dev_get_uclass_plat(dev); + + uc_plat->type = REGULATOR_TYPE_FIXED; + + return 0; +} + +static const struct udevice_id axp_usb_power_ids[] = { + { .compatible = "x-powers,axp202-usb-power-supply" }, + { .compatible = "x-powers,axp221-usb-power-supply" }, + { .compatible = "x-powers,axp223-usb-power-supply" }, + { .compatible = "x-powers,axp813-usb-power-supply" }, + { } +}; + +U_BOOT_DRIVER(axp_usb_power) = { + .name = "axp_usb_power", + .id = UCLASS_REGULATOR, + .of_match = axp_usb_power_ids, + .probe = axp_usb_power_probe, + .ops = &axp_usb_power_ops, +};