1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/power/regulator/axp_usb_power.c b/drivers/power/regulator/axp_usb_power.c
new file mode 100644
index 0000000..f32fb6a
--- /dev/null
+++ b/drivers/power/regulator/axp_usb_power.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+#include <dm/device.h>
+#include <errno.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+
+#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,
+};