drivers:power:max77693: add support for new multi function pmic max77693

This patch add support for new multi function pmic max77693.
The driver is split into three modules: pmic, muic and fuelgage.

Signed-off-by: Piotr Wilczek <p.wilczek@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

1 files changed, 77 insertions, 0 deletions

diff --git a/drivers/power/mfd/muic_max77693.c b/drivers/power/mfd/muic_max77693.c
new file mode 100644
index 0000000000..e71012de1f
--- /dev/null
+++ b/drivers/power/mfd/muic_max77693.c
@@ -0,0 +1,77 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics
+ * Piotr Wilczek <p.wilczek@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/power_chrg.h>
+#include <power/max77693_muic.h>
+#include <i2c.h>
+#include <errno.h>
+
+static int power_chrg_get_type(struct pmic *p)
+{
+	unsigned int val;
+	unsigned int charge_type, charger;
+
+	/* if probe failed, return cable none */
+	if (pmic_probe(p))
+		return CHARGER_NO;
+
+	pmic_reg_read(p, MAX77693_MUIC_STATUS2, &val);
+
+	charge_type = val & MAX77693_MUIC_CHG_MASK;
+
+	switch (charge_type) {
+	case MAX77693_MUIC_CHG_NO:
+		charger = CHARGER_NO;
+		break;
+	case MAX77693_MUIC_CHG_USB:
+	case MAX77693_MUIC_CHG_USB_D:
+		charger = CHARGER_USB;
+		break;
+	case MAX77693_MUIC_CHG_TA:
+	case MAX77693_MUIC_CHG_TA_1A:
+		charger = CHARGER_TA;
+		break;
+	case MAX77693_MUIC_CHG_TA_500:
+		charger = CHARGER_TA_500;
+		break;
+	default:
+		charger = CHARGER_UNKNOWN;
+		break;
+	}
+
+	return charger;
+}
+
+static struct power_chrg power_chrg_muic_ops = {
+	.chrg_type = power_chrg_get_type,
+};
+
+int power_muic_init(unsigned int bus)
+{
+	static const char name[] = "MAX77693_MUIC";
+	struct pmic *p = pmic_alloc();
+
+	if (!p) {
+		printf("%s: POWER allocation error!\n", __func__);
+		return -ENOMEM;
+	}
+
+	debug("Board Micro USB Interface Controller init\n");
+
+	p->name = name;
+	p->interface = PMIC_I2C;
+	p->number_of_regs = MUIC_NUM_OF_REGS;
+	p->hw.i2c.addr = MAX77693_MUIC_I2C_ADDR;
+	p->hw.i2c.tx_num = 1;
+	p->bus = bus;
+
+	p->chrg = &power_chrg_muic_ops;
+
+	return 0;
+}