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authorPiotr Wilczek <p.wilczek@samsung.com>2013-09-24 16:31:22 +0200
committerMinkyu Kang <mk7.kang@samsung.com>2013-09-25 10:52:27 +0900
commit04750447124143dfc9444a0c3335ffc9636e1df8 (patch)
treeb4533d68cf58eaeb698d3612a0e68d8d266cd47c /drivers/power/mfd/muic_max77693.c
parent12eba1b49380988fd87cc0b3af44014cca8b71c4 (diff)
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>
Diffstat (limited to 'drivers/power/mfd/muic_max77693.c')
-rw-r--r--drivers/power/mfd/muic_max77693.c77
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;
+}