tps65023-regulator.c revision fc999b83799074832367d3cfd724c341c849a7da
130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* 230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * tps65023-regulator.c 330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * Supports TPS65023 Regulator 530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * Copyright (C) 2009 Texas Instrument Incorporated - http://www.ti.com/ 730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * This program is free software; you can redistribute it and/or 930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * modify it under the terms of the GNU General Public License as 1030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * published by the Free Software Foundation version 2. 1130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 1230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, 1330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * whether express or implied; without even the implied warranty of 1430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * General Public License for more details. 1630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal */ 1730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/kernel.h> 1930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/module.h> 2030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/init.h> 2130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/err.h> 2230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/platform_device.h> 2330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/regulator/driver.h> 2430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/regulator/machine.h> 2530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/i2c.h> 2630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#include <linux/delay.h> 275a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 2890923351d480fffd0d24646db83f6f8315eed0d9Mark Brown#include <linux/regmap.h> 2930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 3030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Register definitions */ 3130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_VERSION 0 3230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_PGOODZ 1 3330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_MASK 2 3430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_REG_CTRL 3 3530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CON_CTRL 4 3630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CON_CTRL2 5 3730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_DEF_CORE 6 3830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_DEFSLEW 7 3930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_LDO_CTRL 8 4030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 4130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* PGOODZ bitfields */ 4230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_PWRFAILZ BIT(7) 4330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_LOWBATTZ BIT(6) 4430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_VDCDC1 BIT(5) 4530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_VDCDC2 BIT(4) 4630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_VDCDC3 BIT(3) 4730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_LDO2 BIT(2) 4830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_PGOODZ_LDO1 BIT(1) 4930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 5030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* MASK bitfields */ 5130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_PWRFAILZ BIT(7) 5230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_LOWBATTZ BIT(6) 5330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_VDCDC1 BIT(5) 5430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_VDCDC2 BIT(4) 5530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_VDCDC3 BIT(3) 5630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_LDO2 BIT(2) 5730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MASK_LDO1 BIT(1) 5830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 5930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* REG_CTRL bitfields */ 6030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CTRL_VDCDC1_EN BIT(5) 6130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CTRL_VDCDC2_EN BIT(4) 6230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CTRL_VDCDC3_EN BIT(3) 6330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CTRL_LDO2_EN BIT(2) 6430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_REG_CTRL_LDO1_EN BIT(1) 6530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 66fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson/* REG_CTRL2 bitfields */ 67fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson#define TPS65023_REG_CTRL2_GO BIT(7) 68fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson#define TPS65023_REG_CTRL2_CORE_ADJ BIT(6) 69fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson#define TPS65023_REG_CTRL2_DCDC2 BIT(2) 70fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson#define TPS65023_REG_CTRL2_DCDC1 BIT(2) 71fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson#define TPS65023_REG_CTRL2_DCDC3 BIT(0) 72fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson 7330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* LDO_CTRL bitfields */ 7430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) 7530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0xF0 >> ((ldo_id)*4)) 7630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 7730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Number of step-down converters available */ 7830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_NUM_DCDC 3 7930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Number of LDO voltage regulators available */ 8030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_NUM_LDO 2 8130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Number of total regulators available */ 8230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_NUM_REGULATOR (TPS65023_NUM_DCDC + TPS65023_NUM_LDO) 8330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 8430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* DCDCs */ 8530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_DCDC_1 0 8630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_DCDC_2 1 8730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_DCDC_3 2 8830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* LDOs */ 8930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_LDO_1 3 9030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_LDO_2 4 9130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 9230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal#define TPS65023_MAX_REG_ID TPS65023_LDO_2 9330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 9430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Supported voltage values for regulators */ 9530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic const u16 VDCDC1_VSEL_table[] = { 9630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 800, 825, 850, 875, 9730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 900, 925, 950, 975, 9830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1000, 1025, 1050, 1075, 9930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1100, 1125, 1150, 1175, 10030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1200, 1225, 1250, 1275, 10130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1300, 1325, 1350, 1375, 10230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1400, 1425, 1450, 1475, 10330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1500, 1525, 1550, 1600, 10430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 10530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 10630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic const u16 LDO1_VSEL_table[] = { 10730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1000, 1100, 1300, 1800, 10830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 2200, 2600, 2800, 3150, 10930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 11030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 11130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic const u16 LDO2_VSEL_table[] = { 11230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 1050, 1200, 1300, 1800, 11330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 2500, 2800, 3000, 3300, 11430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 11530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 11630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic unsigned int num_voltages[] = {ARRAY_SIZE(VDCDC1_VSEL_table), 11730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 0, 0, ARRAY_SIZE(LDO1_VSEL_table), 11830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal ARRAY_SIZE(LDO2_VSEL_table)}; 11930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 12030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Regulator specific details */ 12130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstruct tps_info { 12230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal const char *name; 12330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal unsigned min_uV; 12430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal unsigned max_uV; 12530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal bool fixed; 12630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 table_len; 12730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal const u16 *table; 12830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 12930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 13030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* PMIC details */ 13130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstruct tps_pmic { 13230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct regulator_desc desc[TPS65023_NUM_REGULATOR]; 13330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct i2c_client *client; 13430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct regulator_dev *rdev[TPS65023_NUM_REGULATOR]; 13530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal const struct tps_info *info[TPS65023_NUM_REGULATOR]; 13690923351d480fffd0d24646db83f6f8315eed0d9Mark Brown struct regmap *regmap; 13730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 13830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 13930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask) 14030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 14190923351d480fffd0d24646db83f6f8315eed0d9Mark Brown return regmap_update_bits(tps->regmap, reg, mask, mask); 14230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 14330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 14430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask) 14530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 14690923351d480fffd0d24646db83f6f8315eed0d9Mark Brown return regmap_update_bits(tps->regmap, reg, mask, 0); 14730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 14830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 14930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps_65023_reg_read(struct tps_pmic *tps, u8 reg) 15030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 15190923351d480fffd0d24646db83f6f8315eed0d9Mark Brown unsigned int val; 15290923351d480fffd0d24646db83f6f8315eed0d9Mark Brown int ret; 15330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 15490923351d480fffd0d24646db83f6f8315eed0d9Mark Brown ret = regmap_read(tps->regmap, reg, &val); 15530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 15690923351d480fffd0d24646db83f6f8315eed0d9Mark Brown if (ret != 0) 15790923351d480fffd0d24646db83f6f8315eed0d9Mark Brown return ret; 15890923351d480fffd0d24646db83f6f8315eed0d9Mark Brown else 15990923351d480fffd0d24646db83f6f8315eed0d9Mark Brown return val; 16030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 16130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 16230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val) 16330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 16490923351d480fffd0d24646db83f6f8315eed0d9Mark Brown return regmap_write(tps->regmap, reg, val); 16530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 16630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 16730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_is_enabled(struct regulator_dev *dev) 16830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 16930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 17030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int data, dcdc = rdev_get_id(dev); 17130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 17230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 17330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) 17430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 17530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 17630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = TPS65023_NUM_REGULATOR - dcdc; 17730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); 17830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 17930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (data < 0) 18030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return data; 18130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal else 18230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return (data & 1<<shift) ? 1 : 0; 18330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 18430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 18530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_is_enabled(struct regulator_dev *dev) 18630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 18730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 18830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int data, ldo = rdev_get_id(dev); 18930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 19030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 19130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 19230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 19330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 19430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = (ldo == TPS65023_LDO_1 ? 1 : 2); 19530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL); 19630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 19730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (data < 0) 19830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return data; 19930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal else 20030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return (data & 1<<shift) ? 1 : 0; 20130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 20230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 20330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_enable(struct regulator_dev *dev) 20430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 20530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 20630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int dcdc = rdev_get_id(dev); 20730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 20830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 20930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) 21030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 21130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 21230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = TPS65023_NUM_REGULATOR - dcdc; 21330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); 21430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 21530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 21630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_disable(struct regulator_dev *dev) 21730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 21830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 21930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int dcdc = rdev_get_id(dev); 22030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 22130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 22230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) 22330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 22430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 22530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = TPS65023_NUM_REGULATOR - dcdc; 22630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); 22730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 22830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 22930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_enable(struct regulator_dev *dev) 23030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 23130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 23230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int ldo = rdev_get_id(dev); 23330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 23430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 23530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 23630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 23730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 23830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = (ldo == TPS65023_LDO_1 ? 1 : 2); 23930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); 24030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 24130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 24230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_disable(struct regulator_dev *dev) 24330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 24430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 24530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int ldo = rdev_get_id(dev); 24630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal u8 shift; 24730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 24830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 24930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 25030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 25130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal shift = (ldo == TPS65023_LDO_1 ? 1 : 2); 25230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift); 25330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 25430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 25530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_get_voltage(struct regulator_dev *dev) 25630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 25730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 25830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int data, dcdc = rdev_get_id(dev); 25930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 26030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) 26130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 26230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 26330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc == TPS65023_DCDC_1) { 26430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE); 26530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (data < 0) 26630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return data; 26730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data &= (tps->info[dcdc]->table_len - 1); 26830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[dcdc]->table[data] * 1000; 26930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } else 27030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[dcdc]->min_uV; 27130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 27230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 27330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_set_voltage(struct regulator_dev *dev, 2743a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown int min_uV, int max_uV, 2753a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown unsigned *selector) 27630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 27730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 27830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int dcdc = rdev_get_id(dev); 27930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int vsel; 28030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 28130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc != TPS65023_DCDC_1) 28230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 28330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 28430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (min_uV < tps->info[dcdc]->min_uV 28530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal || min_uV > tps->info[dcdc]->max_uV) 28630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 28730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (max_uV < tps->info[dcdc]->min_uV 28830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal || max_uV > tps->info[dcdc]->max_uV) 28930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 29030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 29130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal for (vsel = 0; vsel < tps->info[dcdc]->table_len; vsel++) { 29230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int mV = tps->info[dcdc]->table[vsel]; 29330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int uV = mV * 1000; 29430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 29530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* Break at the first in-range value */ 29630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (min_uV <= uV && uV <= max_uV) 29730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal break; 29830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } 29930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 3003a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown *selector = vsel; 3013a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown 30230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* write to the register in case we found a match */ 30330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (vsel == tps->info[dcdc]->table_len) 30430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 30530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal else 30630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); 30730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 30830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 30930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_get_voltage(struct regulator_dev *dev) 31030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 31130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 31230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int data, ldo = rdev_get_id(dev); 31330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 31430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 31530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 31630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 31730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); 31830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (data < 0) 31930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return data; 32030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 32130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)); 32230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data &= (tps->info[ldo]->table_len - 1); 32330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[ldo]->table[data] * 1000; 32430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 32530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 32630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_set_voltage(struct regulator_dev *dev, 3273a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown int min_uV, int max_uV, unsigned *selector) 32830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 32930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 33030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int data, vsel, ldo = rdev_get_id(dev); 33130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 33230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 33330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 33430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 33530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (min_uV < tps->info[ldo]->min_uV || min_uV > tps->info[ldo]->max_uV) 33630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 33730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (max_uV < tps->info[ldo]->min_uV || max_uV > tps->info[ldo]->max_uV) 33830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 33930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 34030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal for (vsel = 0; vsel < tps->info[ldo]->table_len; vsel++) { 34130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int mV = tps->info[ldo]->table[vsel]; 34230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int uV = mV * 1000; 34330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 34430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* Break at the first in-range value */ 34530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (min_uV <= uV && uV <= max_uV) 34630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal break; 34730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } 34830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 34930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (vsel == tps->info[ldo]->table_len) 35030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 35130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 3523a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown *selector = vsel; 3533a93f2a9f4d8f73d74c0e552feb68a10f778a219Mark Brown 35430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL); 35530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (data < 0) 35630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return data; 35730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 35830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1); 35930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1))); 36030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data); 36130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 36230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 36330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_dcdc_list_voltage(struct regulator_dev *dev, 36430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal unsigned selector) 36530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 36630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 36730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int dcdc = rdev_get_id(dev); 36830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 36930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3) 37030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 37130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 37230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (dcdc == TPS65023_DCDC_1) { 37330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (selector >= tps->info[dcdc]->table_len) 37430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 37530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal else 37630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[dcdc]->table[selector] * 1000; 37730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } else 37830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[dcdc]->min_uV; 37930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 38030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 38130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int tps65023_ldo_list_voltage(struct regulator_dev *dev, 38230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal unsigned selector) 38330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 38430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = rdev_get_drvdata(dev); 38530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int ldo = rdev_get_id(dev); 38630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 38730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2) 38830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 38930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 39030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (selector >= tps->info[ldo]->table_len) 39130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EINVAL; 39230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal else 39330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return tps->info[ldo]->table[selector] * 1000; 39430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 39530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 39630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Operations permitted on VDCDCx */ 39730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic struct regulator_ops tps65023_dcdc_ops = { 39830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .is_enabled = tps65023_dcdc_is_enabled, 39930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .enable = tps65023_dcdc_enable, 40030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .disable = tps65023_dcdc_disable, 40130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .get_voltage = tps65023_dcdc_get_voltage, 40230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .set_voltage = tps65023_dcdc_set_voltage, 40330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .list_voltage = tps65023_dcdc_list_voltage, 40430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 40530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 40630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/* Operations permitted on LDOx */ 40730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic struct regulator_ops tps65023_ldo_ops = { 40830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .is_enabled = tps65023_ldo_is_enabled, 40930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .enable = tps65023_ldo_enable, 41030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .disable = tps65023_ldo_disable, 41130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .get_voltage = tps65023_ldo_get_voltage, 41230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .set_voltage = tps65023_ldo_set_voltage, 41330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .list_voltage = tps65023_ldo_list_voltage, 41430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 41530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 41690923351d480fffd0d24646db83f6f8315eed0d9Mark Brownstatic struct regmap_config tps65023_regmap_config = { 41790923351d480fffd0d24646db83f6f8315eed0d9Mark Brown .reg_bits = 8, 41890923351d480fffd0d24646db83f6f8315eed0d9Mark Brown .val_bits = 8, 41990923351d480fffd0d24646db83f6f8315eed0d9Mark Brown}; 42090923351d480fffd0d24646db83f6f8315eed0d9Mark Brown 42154d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhovstatic int __devinit tps_65023_probe(struct i2c_client *client, 42254d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov const struct i2c_device_id *id) 42330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 42430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal const struct tps_info *info = (void *)id->driver_data; 42530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct regulator_init_data *init_data; 42630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct regulator_dev *rdev; 42730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps; 42830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int i; 42954d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov int error; 43030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 43130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE_DATA)) 43230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EIO; 43330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 43430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /** 43530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * init_data points to array of regulator_init structures 43630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * coming from the board-evm file. 43730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal */ 43830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal init_data = client->dev.platform_data; 43930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (!init_data) 44030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -EIO; 44130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 44230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps = kzalloc(sizeof(*tps), GFP_KERNEL); 44330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (!tps) 44430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return -ENOMEM; 44530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 44690923351d480fffd0d24646db83f6f8315eed0d9Mark Brown tps->regmap = regmap_init_i2c(client, &tps65023_regmap_config); 44790923351d480fffd0d24646db83f6f8315eed0d9Mark Brown if (IS_ERR(tps->regmap)) { 44890923351d480fffd0d24646db83f6f8315eed0d9Mark Brown error = PTR_ERR(tps->regmap); 44990923351d480fffd0d24646db83f6f8315eed0d9Mark Brown dev_err(&client->dev, "Failed to allocate register map: %d\n", 45090923351d480fffd0d24646db83f6f8315eed0d9Mark Brown error); 45190923351d480fffd0d24646db83f6f8315eed0d9Mark Brown goto fail_alloc; 45290923351d480fffd0d24646db83f6f8315eed0d9Mark Brown } 45330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 45430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* common for all regulators */ 45530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->client = client; 45630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 45730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal for (i = 0; i < TPS65023_NUM_REGULATOR; i++, info++, init_data++) { 45830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* Store regulator specific information */ 45930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->info[i] = info; 46030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 46130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->desc[i].name = info->name; 46277fa44d0e10711e899788c58fe53f8f7b18c7f67Axel Lin tps->desc[i].id = i; 46330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->desc[i].n_voltages = num_voltages[i]; 46430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->desc[i].ops = (i > TPS65023_DCDC_3 ? 46530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal &tps65023_ldo_ops : &tps65023_dcdc_ops); 46630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->desc[i].type = REGULATOR_VOLTAGE; 46730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->desc[i].owner = THIS_MODULE; 46830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 46930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* Register the regulators */ 47030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal rdev = regulator_register(&tps->desc[i], &client->dev, 47154d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov init_data, tps); 47230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal if (IS_ERR(rdev)) { 47330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal dev_err(&client->dev, "failed to register %s\n", 47430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal id->name); 47554d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov error = PTR_ERR(rdev); 47654d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov goto fail; 47730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } 47830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 47930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal /* Save regulator for cleanup */ 48030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal tps->rdev[i] = rdev; 48130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal } 48230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 48330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal i2c_set_clientdata(client, tps); 48430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 485fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson /* Enable setting output voltage by I2C */ 486fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2, 487fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson TPS65023_REG_CTRL2_CORE_ADJ); 488fc999b83799074832367d3cfd724c341c849a7daMarcus Folkesson 48930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return 0; 49054d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov 49154d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov fail: 49254d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov while (--i >= 0) 49354d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov regulator_unregister(tps->rdev[i]); 49454d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov 49590923351d480fffd0d24646db83f6f8315eed0d9Mark Brown regmap_exit(tps->regmap); 49690923351d480fffd0d24646db83f6f8315eed0d9Mark Brown fail_alloc: 49754d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov kfree(tps); 49854d13ab1038911249fc5769efee87fed000623c0Dmitry Torokhov return error; 49930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 50030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 50130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/** 50230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * tps_65023_remove - TPS65023 driver i2c remove handler 50330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * @client: i2c driver client device structure 50430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 50530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * Unregister TPS driver as an i2c client device driver 50630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal */ 50730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int __devexit tps_65023_remove(struct i2c_client *client) 50830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 50930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal struct tps_pmic *tps = i2c_get_clientdata(client); 51030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal int i; 51130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 51230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal for (i = 0; i < TPS65023_NUM_REGULATOR; i++) 51330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal regulator_unregister(tps->rdev[i]); 51430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 51590923351d480fffd0d24646db83f6f8315eed0d9Mark Brown regmap_exit(tps->regmap); 51630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal kfree(tps); 51730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 51830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return 0; 51930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 52030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 52130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic const struct tps_info tps65023_regs[] = { 52230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal { 52330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "VDCDC1", 52430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .min_uV = 800000, 52530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .max_uV = 1600000, 52630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table_len = ARRAY_SIZE(VDCDC1_VSEL_table), 52730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table = VDCDC1_VSEL_table, 52830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 52930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal { 53030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "VDCDC2", 53130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .min_uV = 3300000, 53230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .max_uV = 3300000, 53330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .fixed = 1, 53430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 53530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal { 53630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "VDCDC3", 53730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .min_uV = 1800000, 53830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .max_uV = 1800000, 53930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .fixed = 1, 54030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 54130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal { 54230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "LDO1", 54330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .min_uV = 1000000, 54430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .max_uV = 3150000, 54530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table_len = ARRAY_SIZE(LDO1_VSEL_table), 54630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table = LDO1_VSEL_table, 54730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 54830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal { 54930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "LDO2", 55030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .min_uV = 1050000, 55130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .max_uV = 3300000, 55230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table_len = ARRAY_SIZE(LDO2_VSEL_table), 55330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .table = LDO2_VSEL_table, 55430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 55530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 55630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 5579e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam Girdwoodstatic const struct i2c_device_id tps_65023_id[] = { 5589e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam Girdwood {.name = "tps65023", 5599e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam Girdwood .driver_data = (unsigned long) tps65023_regs,}, 5601880a2fc59d2afabc142a311497cf7c320d64506Marek Vasut {.name = "tps65021", 5611880a2fc59d2afabc142a311497cf7c320d64506Marek Vasut .driver_data = (unsigned long) tps65023_regs,}, 5629e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam Girdwood { }, 56330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 56430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 56530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj AggarwalMODULE_DEVICE_TABLE(i2c, tps_65023_id); 56630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 56730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic struct i2c_driver tps_65023_i2c_driver = { 56830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .driver = { 56930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .name = "tps65023", 57030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .owner = THIS_MODULE, 57130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal }, 57230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .probe = tps_65023_probe, 57330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal .remove = __devexit_p(tps_65023_remove), 5749e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam Girdwood .id_table = tps_65023_id, 57530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal}; 57630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 57730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/** 57830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * tps_65023_init 57930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 58030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * Module init function 58130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal */ 58230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic int __init tps_65023_init(void) 58330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 58430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal return i2c_add_driver(&tps_65023_i2c_driver); 58530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 58630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalsubsys_initcall(tps_65023_init); 58730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 58830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal/** 58930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * tps_65023_cleanup 59030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * 59130e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal * Module exit function 59230e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal */ 59330e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalstatic void __exit tps_65023_cleanup(void) 59430e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal{ 59530e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal i2c_del_driver(&tps_65023_i2c_driver); 59630e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal} 59730e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwalmodule_exit(tps_65023_cleanup); 59830e6599d317ec83c664f341f18b5b2b57b831a6dAnuj Aggarwal 59930e6599d317ec83c664f341f18b5b2b57b831a6dAnuj AggarwalMODULE_AUTHOR("Texas Instruments"); 60030e6599d317ec83c664f341f18b5b2b57b831a6dAnuj AggarwalMODULE_DESCRIPTION("TPS65023 voltage regulator driver"); 6019e108d33edcb88bac3db39ba1683fc2c0591d7d4Liam GirdwoodMODULE_LICENSE("GPL v2"); 602