diff options
Diffstat (limited to 'drivers/power/twl6035.c')
-rw-r--r-- | drivers/power/twl6035.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/power/twl6035.c b/drivers/power/twl6035.c new file mode 100644 index 0000000..624c09e --- /dev/null +++ b/drivers/power/twl6035.c @@ -0,0 +1,65 @@ +/* + * (C) Copyright 2012 + * 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> +#include <twl6035.h> + +/* Functions to read and write from TWL6030 */ +int twl6035_i2c_write_u8(u8 chip_no, u8 val, u8 reg) +{ + return i2c_write(chip_no, reg, 1, &val, 1); +} + +int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg) +{ + return i2c_read(chip_no, reg, 1, val, 1); +} + +/* To align with i2c mw/mr address, reg, val command syntax */ +static inline int palmas_write_u8(u8 chip_no, u8 reg, u8 val) +{ + return i2c_write(chip_no, reg, 1, &val, 1); +} + +static inline int palmas_read_u8(u8 chip_no, u8 reg, u8 *val) +{ + return i2c_read(chip_no, reg, 1, val, 1); +} + +void twl6035_init_settings(void) +{ + return; +} + +void twl6035_mmc1_poweron_ldo(void) +{ + u8 val = 0; + + /* set LDO9 TWL6035 to 3V */ + val = 0x2b; /* (3 -.9)*28 +1 */ + palmas_write_u8(0x48, LDO9_VOLTAGE, val); + + /* TURN ON LDO9 */ + val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE; + palmas_write_u8(0x48, LDO9_CTRL, val); + return; +} |