1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c
new file mode 100644
index 0000000..cf1da6b
--- /dev/null
+++ b/drivers/power/twl6030.c
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2010
+ * Texas Instruments, <www.ti.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+#include <config.h>
+#ifdef CONFIG_TWL6030_POWER
+
+#include <twl6030.h>
+
+/* Functions to read and write from TWL6030 */
+static inline int twl6030_i2c_write_u8(u8 chip_no, u8 val, u8 reg)
+{
+	return i2c_write(chip_no, reg, 1, &val, 1);
+}
+
+static inline int twl6030_i2c_read_u8(u8 chip_no, u8 *val, u8 reg)
+{
+	return i2c_read(chip_no, reg, 1, val, 1);
+}
+
+void twl6030_start_usb_charging(void)
+{
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VICHRG_1500,
+							CHARGERUSB_VICHRG);
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CIN_LIMIT_NONE,
+							CHARGERUSB_CINLIMIT);
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MBAT_TEMP,
+							CONTROLLER_INT_MASK);
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, MASK_MCHARGERUSB_THMREG,
+							CHARGERUSB_INT_MASK);
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_VOREG_4P0,
+							CHARGERUSB_VOREG);
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CHARGERUSB_CTRL2_VITERM_100,
+							CHARGERUSB_CTRL2);
+	/* Enable USB charging */
+	twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1_EN_CHARGER,
+							CONTROLLER_CTRL1);
+	return;
+}
+
+void twl6030_init_battery_charging(void)
+{
+	twl6030_start_usb_charging();
+	return;
+}
+
+void twl6030_usb_device_settings()
+{
+	u8 data = 0;
+
+	/* Select APP Group and set state to ON */
+	twl6030_i2c_write_u8(TWL6030_CHIP_PM, 0x21, VUSB_CFG_STATE);
+
+	twl6030_i2c_read_u8(TWL6030_CHIP_PM, &data, MISC2);
+	data |= 0x10;
+
+	/* Select the input supply for VBUS regulator */
+	twl6030_i2c_write_u8(TWL6030_CHIP_PM, data, MISC2);
+}
+#endif