1 files changed, 86 insertions, 0 deletions
diff --git a/roms/u-boot/drivers/power/pmic/act8846.c b/roms/u-boot/drivers/power/pmic/act8846.c
new file mode 100644
index 000000000..8f0f5a6d9
--- /dev/null
+++ b/roms/u-boot/drivers/power/pmic/act8846.c
@@ -0,0 +1,86 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2015 Google, Inc
+ * Written by Simon Glass <sjg@chromium.org>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <errno.h>
+#include <fdtdec.h>
+#include <log.h>
+#include <linux/libfdt.h>
+#include <power/act8846_pmic.h>
+#include <power/pmic.h>
+
+static const struct pmic_child_info pmic_children_info[] = {
+	{ .prefix = "REG", .driver = "act8846_reg"},
+	{ },
+};
+
+static int act8846_reg_count(struct udevice *dev)
+{
+	return ACT8846_NUM_OF_REGS;
+}
+
+static int act8846_write(struct udevice *dev, uint reg, const uint8_t *buff,
+			  int len)
+{
+	if (dm_i2c_write(dev, reg, buff, len)) {
+		debug("write error to device: %p register: %#x!\n", dev, reg);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int act8846_read(struct udevice *dev, uint reg, uint8_t *buff, int len)
+{
+	if (dm_i2c_read(dev, reg, buff, len)) {
+		debug("read error from device: %p register: %#x!\n", dev, reg);
+		return -EIO;
+	}
+
+	return 0;
+}
+
+static int act8846_bind(struct udevice *dev)
+{
+	ofnode regulators_node;
+	int children;
+
+	regulators_node = dev_read_subnode(dev, "regulators");
+	if (!ofnode_valid(regulators_node)) {
+		debug("%s: %s regulators subnode not found!\n", __func__,
+		      dev->name);
+		return -ENXIO;
+	}
+
+	debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
+
+	children = pmic_bind_children(dev, regulators_node, pmic_children_info);
+	if (!children)
+		debug("%s: %s - no child found\n", __func__, dev->name);
+
+	/* Always return success for this device */
+	return 0;
+}
+
+static struct dm_pmic_ops act8846_ops = {
+	.reg_count = act8846_reg_count,
+	.read = act8846_read,
+	.write = act8846_write,
+};
+
+static const struct udevice_id act8846_ids[] = {
+	{ .compatible = "active-semi,act8846" },
+	{ }
+};
+
+U_BOOT_DRIVER(pmic_act8846) = {
+	.name = "act8846 pmic",
+	.id = UCLASS_PMIC,
+	.of_match = act8846_ids,
+	.bind = act8846_bind,
+	.ops = &act8846_ops,
+};