1 files changed, 94 insertions, 0 deletions
diff --git a/drivers/power/pmic/max8907.c b/drivers/power/pmic/max8907.c
new file mode 100644
index 00000000000..a7ef70177de
--- /dev/null
+++ b/drivers/power/pmic/max8907.c
@@ -0,0 +1,94 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  Copyright(C) 2024 Svyatoslav Ryhel <clamor95@gmail.com>
+ */
+
+#include <dm.h>
+#include <dm/lists.h>
+#include <power/pmic.h>
+#include <power/max8907.h>
+
+static const struct pmic_child_info pmic_children_info[] = {
+	{ .prefix = "ldo", .driver = MAX8907_LDO_DRIVER },
+	{ .prefix = "sd", .driver = MAX8907_SD_DRIVER },
+	{ },
+};
+
+static int max8907_write(struct udevice *dev, uint reg, const uint8_t *buff, int len)
+{
+	int ret;
+
+	ret = dm_i2c_write(dev, reg, buff, len);
+	if (ret) {
+		log_debug("%s: write error to device: %p register: %#x!\n",
+			  __func__, dev, reg);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int max8907_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+	int ret;
+
+	ret = dm_i2c_read(dev, reg, buff, len);
+	if (ret) {
+		log_debug("%s: read error from device: %p register: %#x!\n",
+			  __func__, dev, reg);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int max8907_bind(struct udevice *dev)
+{
+	ofnode regulators_node;
+	int children, ret;
+
+	if (IS_ENABLED(CONFIG_SYSRESET_MAX8907) &&
+	    dev_read_bool(dev, "maxim,system-power-controller")) {
+		ret = device_bind_driver_to_node(dev, MAX8907_RST_DRIVER,
+						 "sysreset", dev_ofnode(dev),
+						 NULL);
+		if (ret) {
+			log_debug("%s: cannot bind SYSRESET (ret = %d)\n",
+				  __func__, ret);
+			return ret;
+		}
+	}
+
+	regulators_node = dev_read_subnode(dev, "regulators");
+	if (!ofnode_valid(regulators_node)) {
+		log_err("%s regulators subnode not found!\n", dev->name);
+		return -ENXIO;
+	}
+
+	log_debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
+
+	children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+	if (!children)
+		log_err("%s - no child found\n", dev->name);
+
+	/* Always return success for this device */
+	return 0;
+}
+
+static struct dm_pmic_ops max8907_ops = {
+	.read = max8907_read,
+	.write = max8907_write,
+};
+
+static const struct udevice_id max8907_ids[] = {
+	{ .compatible = "maxim,max8907" },
+	{ }
+};
+
+U_BOOT_DRIVER(pmic_max8907) = {
+	.name = "max8907_pmic",
+	.id = UCLASS_PMIC,
+	.of_match = max8907_ids,
+	.bind = max8907_bind,
+	.ops = &max8907_ops,
+};