1 /* 2 * (C) Copyright 2012-2013 3 * Texas Instruments, <www.ti.com> 4 * 5 * See file CREDITS for list of people who contributed to this 6 * project. 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 * GNU General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21 * MA 02111-1307 USA 22 */ 23 #include <config.h> 24 #include <palmas.h> 25 26 /* Functions to read and write from TWL6030 */ 27 int twl6035_i2c_write_u8(u8 chip_no, u8 val, u8 reg) 28 { 29 return i2c_write(chip_no, reg, 1, &val, 1); 30 } 31 32 int twl6035_i2c_read_u8(u8 chip_no, u8 *val, u8 reg) 33 { 34 return i2c_read(chip_no, reg, 1, val, 1); 35 } 36 37 /* To align with i2c mw/mr address, reg, val command syntax */ 38 static inline int palmas_write_u8(u8 chip_no, u8 reg, u8 val) 39 { 40 return i2c_write(chip_no, reg, 1, &val, 1); 41 } 42 43 static inline int palmas_read_u8(u8 chip_no, u8 reg, u8 *val) 44 { 45 return i2c_read(chip_no, reg, 1, val, 1); 46 } 47 48 void palmas_init_settings(void) 49 { 50 return; 51 } 52 53 int twl6035_mmc1_poweron_ldo(void) 54 { 55 u8 val = 0; 56 57 /* set LDO9 TWL6035 to 3V */ 58 val = 0x2b; /* (3 -.9)*28 +1 */ 59 60 if (palmas_write_u8(0x48, LDO9_VOLTAGE, val)) { 61 printf("twl6035: could not set LDO9 voltage.\n"); 62 return 1; 63 } 64 65 /* TURN ON LDO9 */ 66 val = LDO_ON | LDO_MODE_SLEEP | LDO_MODE_ACTIVE; 67 68 if (palmas_write_u8(0x48, LDO9_CTRL, val)) { 69 printf("twl6035: could not turn on LDO9.\n"); 70 return 1; 71 } 72 73 return 0; 74 } 75