1253 lines
33 KiB
C
1253 lines
33 KiB
C
/*
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* twl-regulator.c -- support regulators in twl4030/twl6030 family chips
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*
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* Copyright (C) 2008 David Brownell
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <linux/module.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <linux/platform_device.h>
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#include <linux/of.h>
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#include <linux/of_device.h>
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#include <linux/regulator/driver.h>
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#include <linux/regulator/machine.h>
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#include <linux/regulator/of_regulator.h>
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#include <linux/i2c/twl.h>
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/*
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* The TWL4030/TW5030/TPS659x0/TWL6030 family chips include power management, a
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* USB OTG transceiver, an RTC, ADC, PWM, and lots more. Some versions
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* include an audio codec, battery charger, and more voltage regulators.
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* These chips are often used in OMAP-based systems.
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*
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* This driver implements software-based resource control for various
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* voltage regulators. This is usually augmented with state machine
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* based control.
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*/
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struct twlreg_info {
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/* start of regulator's PM_RECEIVER control register bank */
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u8 base;
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/* twl resource ID, for resource control state machine */
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u8 id;
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/* voltage in mV = table[VSEL]; table_len must be a power-of-two */
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u8 table_len;
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const u16 *table;
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/* State REMAP default configuration */
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u8 remap;
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/* chip constraints on regulator behavior */
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u16 min_mV;
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u16 max_mV;
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u8 flags;
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/* used by regulator core */
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struct regulator_desc desc;
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/* chip specific features */
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unsigned long features;
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/*
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* optional override functions for voltage set/get
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* these are currently only used for SMPS regulators
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*/
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int (*get_voltage)(void *data);
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int (*set_voltage)(void *data, int target_uV);
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/* data passed from board for external get/set voltage */
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void *data;
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};
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/* LDO control registers ... offset is from the base of its register bank.
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* The first three registers of all power resource banks help hardware to
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* manage the various resource groups.
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*/
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/* Common offset in TWL4030/6030 */
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#define VREG_GRP 0
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/* TWL4030 register offsets */
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#define VREG_TYPE 1
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#define VREG_REMAP 2
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#define VREG_DEDICATED 3 /* LDO control */
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#define VREG_VOLTAGE_SMPS_4030 9
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/* TWL6030 register offsets */
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#define VREG_TRANS 1
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#define VREG_STATE 2
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#define VREG_VOLTAGE 3
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#define VREG_VOLTAGE_SMPS 4
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/* TWL6030 Misc register offsets */
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#define VREG_BC_ALL 1
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#define VREG_BC_REF 2
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#define VREG_BC_PROC 3
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#define VREG_BC_CLK_RST 4
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/* TWL6030 LDO register values for CFG_STATE */
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#define TWL6030_CFG_STATE_OFF 0x00
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#define TWL6030_CFG_STATE_ON 0x01
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#define TWL6030_CFG_STATE_OFF2 0x02
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#define TWL6030_CFG_STATE_SLEEP 0x03
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#define TWL6030_CFG_STATE_GRP_SHIFT 5
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#define TWL6030_CFG_STATE_APP_SHIFT 2
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#define TWL6030_CFG_STATE_APP_MASK (0x03 << TWL6030_CFG_STATE_APP_SHIFT)
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#define TWL6030_CFG_STATE_APP(v) (((v) & TWL6030_CFG_STATE_APP_MASK) >>\
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TWL6030_CFG_STATE_APP_SHIFT)
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/* Flags for SMPS Voltage reading */
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#define SMPS_OFFSET_EN BIT(0)
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#define SMPS_EXTENDED_EN BIT(1)
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/* twl6025 SMPS EPROM values */
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#define TWL6030_SMPS_OFFSET 0xB0
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#define TWL6030_SMPS_MULT 0xB3
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#define SMPS_MULTOFFSET_SMPS4 BIT(0)
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#define SMPS_MULTOFFSET_VIO BIT(1)
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#define SMPS_MULTOFFSET_SMPS3 BIT(6)
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static inline int
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twlreg_read(struct twlreg_info *info, unsigned slave_subgp, unsigned offset)
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{
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u8 value;
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int status;
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status = twl_i2c_read_u8(slave_subgp,
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&value, info->base + offset);
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return (status < 0) ? status : value;
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}
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static inline int
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twlreg_write(struct twlreg_info *info, unsigned slave_subgp, unsigned offset,
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u8 value)
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{
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return twl_i2c_write_u8(slave_subgp,
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value, info->base + offset);
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}
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/*----------------------------------------------------------------------*/
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/* generic power resource operations, which work on all regulators */
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static int twlreg_grp(struct regulator_dev *rdev)
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{
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return twlreg_read(rdev_get_drvdata(rdev), TWL_MODULE_PM_RECEIVER,
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VREG_GRP);
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}
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/*
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* Enable/disable regulators by joining/leaving the P1 (processor) group.
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* We assume nobody else is updating the DEV_GRP registers.
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*/
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/* definition for 4030 family */
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#define P3_GRP_4030 BIT(7) /* "peripherals" */
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#define P2_GRP_4030 BIT(6) /* secondary processor, modem, etc */
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#define P1_GRP_4030 BIT(5) /* CPU/Linux */
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/* definition for 6030 family */
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#define P3_GRP_6030 BIT(2) /* secondary processor, modem, etc */
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#define P2_GRP_6030 BIT(1) /* "peripherals" */
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#define P1_GRP_6030 BIT(0) /* CPU/Linux */
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static int twl4030reg_is_enabled(struct regulator_dev *rdev)
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{
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int state = twlreg_grp(rdev);
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if (state < 0)
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return state;
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return state & P1_GRP_4030;
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}
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static int twl6030reg_is_enabled(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp = 0, val;
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if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS))) {
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grp = twlreg_grp(rdev);
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if (grp < 0)
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return grp;
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grp &= P1_GRP_6030;
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} else {
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grp = 1;
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}
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val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
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val = TWL6030_CFG_STATE_APP(val);
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return grp && (val == TWL6030_CFG_STATE_ON);
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}
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static int twl4030reg_enable(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp;
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int ret;
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grp = twlreg_grp(rdev);
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if (grp < 0)
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return grp;
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grp |= P1_GRP_4030;
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ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
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return ret;
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}
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static int twl6030reg_enable(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp = 0;
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int ret;
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if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
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grp = twlreg_grp(rdev);
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if (grp < 0)
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return grp;
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ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
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grp << TWL6030_CFG_STATE_GRP_SHIFT |
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TWL6030_CFG_STATE_ON);
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return ret;
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}
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static int twl4030reg_disable(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp;
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int ret;
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grp = twlreg_grp(rdev);
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if (grp < 0)
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return grp;
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grp &= ~(P1_GRP_4030 | P2_GRP_4030 | P3_GRP_4030);
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ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_GRP, grp);
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return ret;
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}
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static int twl6030reg_disable(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp = 0;
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int ret;
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if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
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grp = P1_GRP_6030 | P2_GRP_6030 | P3_GRP_6030;
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/* For 6030, set the off state for all grps enabled */
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ret = twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE,
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(grp) << TWL6030_CFG_STATE_GRP_SHIFT |
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TWL6030_CFG_STATE_OFF);
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return ret;
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}
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static int twl4030reg_get_status(struct regulator_dev *rdev)
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{
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int state = twlreg_grp(rdev);
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if (state < 0)
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return state;
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state &= 0x0f;
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/* assume state != WARM_RESET; we'd not be running... */
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if (!state)
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return REGULATOR_STATUS_OFF;
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return (state & BIT(3))
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? REGULATOR_STATUS_NORMAL
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: REGULATOR_STATUS_STANDBY;
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}
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static int twl6030reg_get_status(struct regulator_dev *rdev)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int val;
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val = twlreg_grp(rdev);
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if (val < 0)
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return val;
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val = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_STATE);
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switch (TWL6030_CFG_STATE_APP(val)) {
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case TWL6030_CFG_STATE_ON:
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return REGULATOR_STATUS_NORMAL;
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case TWL6030_CFG_STATE_SLEEP:
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return REGULATOR_STATUS_STANDBY;
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case TWL6030_CFG_STATE_OFF:
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case TWL6030_CFG_STATE_OFF2:
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default:
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break;
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}
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return REGULATOR_STATUS_OFF;
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}
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static int twl4030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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unsigned message;
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int status;
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/* We can only set the mode through state machine commands... */
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switch (mode) {
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case REGULATOR_MODE_NORMAL:
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message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_ACTIVE);
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break;
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case REGULATOR_MODE_STANDBY:
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message = MSG_SINGULAR(DEV_GRP_P1, info->id, RES_STATE_SLEEP);
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break;
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default:
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return -EINVAL;
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}
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/* Ensure the resource is associated with some group */
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status = twlreg_grp(rdev);
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if (status < 0)
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return status;
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if (!(status & (P3_GRP_4030 | P2_GRP_4030 | P1_GRP_4030)))
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return -EACCES;
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status = twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
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message >> 8, TWL4030_PM_MASTER_PB_WORD_MSB);
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if (status < 0)
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return status;
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return twl_i2c_write_u8(TWL_MODULE_PM_MASTER,
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message & 0xff, TWL4030_PM_MASTER_PB_WORD_LSB);
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}
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static int twl6030reg_set_mode(struct regulator_dev *rdev, unsigned mode)
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{
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struct twlreg_info *info = rdev_get_drvdata(rdev);
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int grp = 0;
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int val;
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if (!(twl_class_is_6030() && (info->features & TWL6025_SUBCLASS)))
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grp = twlreg_grp(rdev);
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if (grp < 0)
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return grp;
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/* Compose the state register settings */
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val = grp << TWL6030_CFG_STATE_GRP_SHIFT;
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/* We can only set the mode through state machine commands... */
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switch (mode) {
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case REGULATOR_MODE_NORMAL:
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val |= TWL6030_CFG_STATE_ON;
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break;
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case REGULATOR_MODE_STANDBY:
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val |= TWL6030_CFG_STATE_SLEEP;
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break;
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default:
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return -EINVAL;
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}
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return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_STATE, val);
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}
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/*----------------------------------------------------------------------*/
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/*
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* Support for adjustable-voltage LDOs uses a four bit (or less) voltage
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* select field in its control register. We use tables indexed by VSEL
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* to record voltages in milliVolts. (Accuracy is about three percent.)
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*
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* Note that VSEL values for VAUX2 changed in twl5030 and newer silicon;
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* currently handled by listing two slightly different VAUX2 regulators,
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* only one of which will be configured.
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*
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* VSEL values documented as "TI cannot support these values" are flagged
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* in these tables as UNSUP() values; we normally won't assign them.
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*
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* VAUX3 at 3V is incorrectly listed in some TI manuals as unsupported.
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* TI are revising the twl5030/tps659x0 specs to support that 3.0V setting.
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*/
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#define UNSUP_MASK 0x8000
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#define UNSUP(x) (UNSUP_MASK | (x))
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#define IS_UNSUP(info, x) \
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((UNSUP_MASK & (x)) && \
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!((info)->features & TWL4030_ALLOW_UNSUPPORTED))
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#define LDO_MV(x) (~UNSUP_MASK & (x))
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static const u16 VAUX1_VSEL_table[] = {
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UNSUP(1500), UNSUP(1800), 2500, 2800,
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3000, 3000, 3000, 3000,
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};
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static const u16 VAUX2_4030_VSEL_table[] = {
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UNSUP(1000), UNSUP(1000), UNSUP(1200), 1300,
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1500, 1800, UNSUP(1850), 2500,
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UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
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UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
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};
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static const u16 VAUX2_VSEL_table[] = {
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1700, 1700, 1900, 1300,
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1500, 1800, 2000, 2500,
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2100, 2800, 2200, 2300,
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2400, 2400, 2400, 2400,
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};
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static const u16 VAUX3_VSEL_table[] = {
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1500, 1800, 2500, 2800,
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3000, 3000, 3000, 3000,
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};
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static const u16 VAUX4_VSEL_table[] = {
|
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700, 1000, 1200, UNSUP(1300),
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1500, 1800, UNSUP(1850), 2500,
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UNSUP(2600), 2800, UNSUP(2850), UNSUP(3000),
|
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UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
|
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};
|
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static const u16 VMMC1_VSEL_table[] = {
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1850, 2850, 3000, 3150,
|
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};
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static const u16 VMMC2_VSEL_table[] = {
|
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UNSUP(1000), UNSUP(1000), UNSUP(1200), UNSUP(1300),
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UNSUP(1500), UNSUP(1800), 1850, UNSUP(2500),
|
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2600, 2800, 2850, 3000,
|
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3150, 3150, 3150, 3150,
|
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};
|
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static const u16 VPLL1_VSEL_table[] = {
|
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1000, 1200, 1300, 1800,
|
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UNSUP(2800), UNSUP(3000), UNSUP(3000), UNSUP(3000),
|
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};
|
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static const u16 VPLL2_VSEL_table[] = {
|
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700, 1000, 1200, 1300,
|
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UNSUP(1500), 1800, UNSUP(1850), UNSUP(2500),
|
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UNSUP(2600), UNSUP(2800), UNSUP(2850), UNSUP(3000),
|
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UNSUP(3150), UNSUP(3150), UNSUP(3150), UNSUP(3150),
|
||
};
|
||
static const u16 VSIM_VSEL_table[] = {
|
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UNSUP(1000), UNSUP(1200), UNSUP(1300), 1800,
|
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2800, 3000, 3000, 3000,
|
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};
|
||
static const u16 VDAC_VSEL_table[] = {
|
||
1200, 1300, 1800, 1800,
|
||
};
|
||
static const u16 VIO_VSEL_table[] = {
|
||
1800, 1850,
|
||
};
|
||
static const u16 VINTANA2_VSEL_table[] = {
|
||
2500, 2750,
|
||
};
|
||
|
||
static int twl4030ldo_list_voltage(struct regulator_dev *rdev, unsigned index)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int mV = info->table[index];
|
||
|
||
return IS_UNSUP(info, mV) ? 0 : (LDO_MV(mV) * 1000);
|
||
}
|
||
|
||
static int
|
||
twl4030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
|
||
selector);
|
||
}
|
||
|
||
static int twl4030ldo_get_voltage_sel(struct regulator_dev *rdev)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
|
||
|
||
if (vsel < 0)
|
||
return vsel;
|
||
|
||
vsel &= info->table_len - 1;
|
||
return vsel;
|
||
}
|
||
|
||
static struct regulator_ops twl4030ldo_ops = {
|
||
.list_voltage = twl4030ldo_list_voltage,
|
||
|
||
.set_voltage_sel = twl4030ldo_set_voltage_sel,
|
||
.get_voltage_sel = twl4030ldo_get_voltage_sel,
|
||
|
||
.enable = twl4030reg_enable,
|
||
.disable = twl4030reg_disable,
|
||
.is_enabled = twl4030reg_is_enabled,
|
||
|
||
.set_mode = twl4030reg_set_mode,
|
||
|
||
.get_status = twl4030reg_get_status,
|
||
};
|
||
|
||
static int
|
||
twl4030smps_set_voltage(struct regulator_dev *rdev, int min_uV, int max_uV,
|
||
unsigned *selector)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
|
||
|
||
if (info->set_voltage) {
|
||
return info->set_voltage(info->data, min_uV);
|
||
} else {
|
||
twlreg_write(info, TWL_MODULE_PM_RECEIVER,
|
||
VREG_VOLTAGE_SMPS_4030, vsel);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int twl4030smps_get_voltage(struct regulator_dev *rdev)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int vsel;
|
||
|
||
if (info->get_voltage)
|
||
return info->get_voltage(info->data);
|
||
|
||
vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER,
|
||
VREG_VOLTAGE_SMPS_4030);
|
||
|
||
return vsel * 12500 + 600000;
|
||
}
|
||
|
||
static struct regulator_ops twl4030smps_ops = {
|
||
.set_voltage = twl4030smps_set_voltage,
|
||
.get_voltage = twl4030smps_get_voltage,
|
||
};
|
||
|
||
static int twl6030coresmps_set_voltage(struct regulator_dev *rdev, int min_uV,
|
||
int max_uV, unsigned *selector)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
if (info->set_voltage)
|
||
return info->set_voltage(info->data, min_uV);
|
||
|
||
return -ENODEV;
|
||
}
|
||
|
||
static int twl6030coresmps_get_voltage(struct regulator_dev *rdev)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
if (info->get_voltage)
|
||
return info->get_voltage(info->data);
|
||
|
||
return -ENODEV;
|
||
}
|
||
|
||
static struct regulator_ops twl6030coresmps_ops = {
|
||
.set_voltage = twl6030coresmps_set_voltage,
|
||
.get_voltage = twl6030coresmps_get_voltage,
|
||
};
|
||
|
||
static int twl6030ldo_list_voltage(struct regulator_dev *rdev, unsigned sel)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
switch (sel) {
|
||
case 0:
|
||
return 0;
|
||
case 1 ... 24:
|
||
/* Linear mapping from 00000001 to 00011000:
|
||
* Absolute voltage value = 1.0 V + 0.1 V × (sel – 00000001)
|
||
*/
|
||
return (info->min_mV + 100 * (sel - 1)) * 1000;
|
||
case 25 ... 30:
|
||
return -EINVAL;
|
||
case 31:
|
||
return 2750000;
|
||
default:
|
||
return -EINVAL;
|
||
}
|
||
}
|
||
|
||
static int
|
||
twl6030ldo_set_voltage_sel(struct regulator_dev *rdev, unsigned selector)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE,
|
||
selector);
|
||
}
|
||
|
||
static int twl6030ldo_get_voltage_sel(struct regulator_dev *rdev)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int vsel = twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE);
|
||
|
||
return vsel;
|
||
}
|
||
|
||
static struct regulator_ops twl6030ldo_ops = {
|
||
.list_voltage = twl6030ldo_list_voltage,
|
||
|
||
.set_voltage_sel = twl6030ldo_set_voltage_sel,
|
||
.get_voltage_sel = twl6030ldo_get_voltage_sel,
|
||
|
||
.enable = twl6030reg_enable,
|
||
.disable = twl6030reg_disable,
|
||
.is_enabled = twl6030reg_is_enabled,
|
||
|
||
.set_mode = twl6030reg_set_mode,
|
||
|
||
.get_status = twl6030reg_get_status,
|
||
};
|
||
|
||
/*----------------------------------------------------------------------*/
|
||
|
||
static struct regulator_ops twl4030fixed_ops = {
|
||
.list_voltage = regulator_list_voltage_linear,
|
||
|
||
.enable = twl4030reg_enable,
|
||
.disable = twl4030reg_disable,
|
||
.is_enabled = twl4030reg_is_enabled,
|
||
|
||
.set_mode = twl4030reg_set_mode,
|
||
|
||
.get_status = twl4030reg_get_status,
|
||
};
|
||
|
||
static struct regulator_ops twl6030fixed_ops = {
|
||
.list_voltage = regulator_list_voltage_linear,
|
||
|
||
.enable = twl6030reg_enable,
|
||
.disable = twl6030reg_disable,
|
||
.is_enabled = twl6030reg_is_enabled,
|
||
|
||
.set_mode = twl6030reg_set_mode,
|
||
|
||
.get_status = twl6030reg_get_status,
|
||
};
|
||
|
||
/*
|
||
* SMPS status and control
|
||
*/
|
||
|
||
static int twl6030smps_list_voltage(struct regulator_dev *rdev, unsigned index)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
int voltage = 0;
|
||
|
||
switch (info->flags) {
|
||
case SMPS_OFFSET_EN:
|
||
voltage = 100000;
|
||
/* fall through */
|
||
case 0:
|
||
switch (index) {
|
||
case 0:
|
||
voltage = 0;
|
||
break;
|
||
case 58:
|
||
voltage = 1350 * 1000;
|
||
break;
|
||
case 59:
|
||
voltage = 1500 * 1000;
|
||
break;
|
||
case 60:
|
||
voltage = 1800 * 1000;
|
||
break;
|
||
case 61:
|
||
voltage = 1900 * 1000;
|
||
break;
|
||
case 62:
|
||
voltage = 2100 * 1000;
|
||
break;
|
||
default:
|
||
voltage += (600000 + (12500 * (index - 1)));
|
||
}
|
||
break;
|
||
case SMPS_EXTENDED_EN:
|
||
switch (index) {
|
||
case 0:
|
||
voltage = 0;
|
||
break;
|
||
case 58:
|
||
voltage = 2084 * 1000;
|
||
break;
|
||
case 59:
|
||
voltage = 2315 * 1000;
|
||
break;
|
||
case 60:
|
||
voltage = 2778 * 1000;
|
||
break;
|
||
case 61:
|
||
voltage = 2932 * 1000;
|
||
break;
|
||
case 62:
|
||
voltage = 3241 * 1000;
|
||
break;
|
||
default:
|
||
voltage = (1852000 + (38600 * (index - 1)));
|
||
}
|
||
break;
|
||
case SMPS_OFFSET_EN | SMPS_EXTENDED_EN:
|
||
switch (index) {
|
||
case 0:
|
||
voltage = 0;
|
||
break;
|
||
case 58:
|
||
voltage = 4167 * 1000;
|
||
break;
|
||
case 59:
|
||
voltage = 2315 * 1000;
|
||
break;
|
||
case 60:
|
||
voltage = 2778 * 1000;
|
||
break;
|
||
case 61:
|
||
voltage = 2932 * 1000;
|
||
break;
|
||
case 62:
|
||
voltage = 3241 * 1000;
|
||
break;
|
||
default:
|
||
voltage = (2161000 + (38600 * (index - 1)));
|
||
}
|
||
break;
|
||
}
|
||
|
||
return voltage;
|
||
}
|
||
|
||
static int twl6030smps_map_voltage(struct regulator_dev *rdev, int min_uV,
|
||
int max_uV)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
int vsel = 0;
|
||
|
||
switch (info->flags) {
|
||
case 0:
|
||
if (min_uV == 0)
|
||
vsel = 0;
|
||
else if ((min_uV >= 600000) && (min_uV <= 1300000)) {
|
||
vsel = DIV_ROUND_UP(min_uV - 600000, 12500);
|
||
vsel++;
|
||
}
|
||
/* Values 1..57 for vsel are linear and can be calculated
|
||
* values 58..62 are non linear.
|
||
*/
|
||
else if ((min_uV > 1900000) && (min_uV <= 2100000))
|
||
vsel = 62;
|
||
else if ((min_uV > 1800000) && (min_uV <= 1900000))
|
||
vsel = 61;
|
||
else if ((min_uV > 1500000) && (min_uV <= 1800000))
|
||
vsel = 60;
|
||
else if ((min_uV > 1350000) && (min_uV <= 1500000))
|
||
vsel = 59;
|
||
else if ((min_uV > 1300000) && (min_uV <= 1350000))
|
||
vsel = 58;
|
||
else
|
||
return -EINVAL;
|
||
break;
|
||
case SMPS_OFFSET_EN:
|
||
if (min_uV == 0)
|
||
vsel = 0;
|
||
else if ((min_uV >= 700000) && (min_uV <= 1420000)) {
|
||
vsel = DIV_ROUND_UP(min_uV - 700000, 12500);
|
||
vsel++;
|
||
}
|
||
/* Values 1..57 for vsel are linear and can be calculated
|
||
* values 58..62 are non linear.
|
||
*/
|
||
else if ((min_uV > 1900000) && (min_uV <= 2100000))
|
||
vsel = 62;
|
||
else if ((min_uV > 1800000) && (min_uV <= 1900000))
|
||
vsel = 61;
|
||
else if ((min_uV > 1350000) && (min_uV <= 1800000))
|
||
vsel = 60;
|
||
else if ((min_uV > 1350000) && (min_uV <= 1500000))
|
||
vsel = 59;
|
||
else if ((min_uV > 1300000) && (min_uV <= 1350000))
|
||
vsel = 58;
|
||
else
|
||
return -EINVAL;
|
||
break;
|
||
case SMPS_EXTENDED_EN:
|
||
if (min_uV == 0) {
|
||
vsel = 0;
|
||
} else if ((min_uV >= 1852000) && (max_uV <= 4013600)) {
|
||
vsel = DIV_ROUND_UP(min_uV - 1852000, 38600);
|
||
vsel++;
|
||
}
|
||
break;
|
||
case SMPS_OFFSET_EN|SMPS_EXTENDED_EN:
|
||
if (min_uV == 0) {
|
||
vsel = 0;
|
||
} else if ((min_uV >= 2161000) && (min_uV <= 4321000)) {
|
||
vsel = DIV_ROUND_UP(min_uV - 2161000, 38600);
|
||
vsel++;
|
||
}
|
||
break;
|
||
}
|
||
|
||
return vsel;
|
||
}
|
||
|
||
static int twl6030smps_set_voltage_sel(struct regulator_dev *rdev,
|
||
unsigned int selector)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
return twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS,
|
||
selector);
|
||
}
|
||
|
||
static int twl6030smps_get_voltage_sel(struct regulator_dev *rdev)
|
||
{
|
||
struct twlreg_info *info = rdev_get_drvdata(rdev);
|
||
|
||
return twlreg_read(info, TWL_MODULE_PM_RECEIVER, VREG_VOLTAGE_SMPS);
|
||
}
|
||
|
||
static struct regulator_ops twlsmps_ops = {
|
||
.list_voltage = twl6030smps_list_voltage,
|
||
.map_voltage = twl6030smps_map_voltage,
|
||
|
||
.set_voltage_sel = twl6030smps_set_voltage_sel,
|
||
.get_voltage_sel = twl6030smps_get_voltage_sel,
|
||
|
||
.enable = twl6030reg_enable,
|
||
.disable = twl6030reg_disable,
|
||
.is_enabled = twl6030reg_is_enabled,
|
||
|
||
.set_mode = twl6030reg_set_mode,
|
||
|
||
.get_status = twl6030reg_get_status,
|
||
};
|
||
|
||
/*----------------------------------------------------------------------*/
|
||
|
||
#define TWL4030_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
|
||
remap_conf) \
|
||
TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, \
|
||
remap_conf, TWL4030, twl4030fixed_ops)
|
||
#define TWL6030_FIXED_LDO(label, offset, mVolts, turnon_delay) \
|
||
TWL_FIXED_LDO(label, offset, mVolts, 0x0, turnon_delay, \
|
||
0x0, TWL6030, twl6030fixed_ops)
|
||
|
||
#define TWL4030_ADJUSTABLE_LDO(label, offset, num, turnon_delay, remap_conf) \
|
||
static const struct twlreg_info TWL4030_INFO_##label = { \
|
||
.base = offset, \
|
||
.id = num, \
|
||
.table_len = ARRAY_SIZE(label##_VSEL_table), \
|
||
.table = label##_VSEL_table, \
|
||
.remap = remap_conf, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL4030_REG_##label, \
|
||
.n_voltages = ARRAY_SIZE(label##_VSEL_table), \
|
||
.ops = &twl4030ldo_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
.enable_time = turnon_delay, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL4030_ADJUSTABLE_SMPS(label, offset, num, turnon_delay, remap_conf) \
|
||
static const struct twlreg_info TWL4030_INFO_##label = { \
|
||
.base = offset, \
|
||
.id = num, \
|
||
.remap = remap_conf, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL4030_REG_##label, \
|
||
.ops = &twl4030smps_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
.enable_time = turnon_delay, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL6030_ADJUSTABLE_SMPS(label) \
|
||
static const struct twlreg_info TWL6030_INFO_##label = { \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL6030_REG_##label, \
|
||
.ops = &twl6030coresmps_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL6030_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
|
||
static const struct twlreg_info TWL6030_INFO_##label = { \
|
||
.base = offset, \
|
||
.min_mV = min_mVolts, \
|
||
.max_mV = max_mVolts, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL6030_REG_##label, \
|
||
.n_voltages = 32, \
|
||
.ops = &twl6030ldo_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL6025_ADJUSTABLE_LDO(label, offset, min_mVolts, max_mVolts) \
|
||
static const struct twlreg_info TWL6025_INFO_##label = { \
|
||
.base = offset, \
|
||
.min_mV = min_mVolts, \
|
||
.max_mV = max_mVolts, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL6025_REG_##label, \
|
||
.n_voltages = 32, \
|
||
.ops = &twl6030ldo_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL_FIXED_LDO(label, offset, mVolts, num, turnon_delay, remap_conf, \
|
||
family, operations) \
|
||
static const struct twlreg_info TWLFIXED_INFO_##label = { \
|
||
.base = offset, \
|
||
.id = num, \
|
||
.min_mV = mVolts, \
|
||
.remap = remap_conf, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = family##_REG_##label, \
|
||
.n_voltages = 1, \
|
||
.ops = &operations, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
.min_uV = mVolts * 1000, \
|
||
.enable_time = turnon_delay, \
|
||
}, \
|
||
}
|
||
|
||
#define TWL6025_ADJUSTABLE_SMPS(label, offset) \
|
||
static const struct twlreg_info TWLSMPS_INFO_##label = { \
|
||
.base = offset, \
|
||
.min_mV = 600, \
|
||
.max_mV = 2100, \
|
||
.desc = { \
|
||
.name = #label, \
|
||
.id = TWL6025_REG_##label, \
|
||
.n_voltages = 63, \
|
||
.ops = &twlsmps_ops, \
|
||
.type = REGULATOR_VOLTAGE, \
|
||
.owner = THIS_MODULE, \
|
||
}, \
|
||
}
|
||
|
||
/*
|
||
* We list regulators here if systems need some level of
|
||
* software control over them after boot.
|
||
*/
|
||
TWL4030_ADJUSTABLE_LDO(VAUX1, 0x17, 1, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VAUX2_4030, 0x1b, 2, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VAUX2, 0x1b, 2, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VAUX3, 0x1f, 3, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VAUX4, 0x23, 4, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VMMC1, 0x27, 5, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VMMC2, 0x2b, 6, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VPLL1, 0x2f, 7, 100, 0x00);
|
||
TWL4030_ADJUSTABLE_LDO(VPLL2, 0x33, 8, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VSIM, 0x37, 9, 100, 0x00);
|
||
TWL4030_ADJUSTABLE_LDO(VDAC, 0x3b, 10, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VINTANA2, 0x43, 12, 100, 0x08);
|
||
TWL4030_ADJUSTABLE_LDO(VIO, 0x4b, 14, 1000, 0x08);
|
||
TWL4030_ADJUSTABLE_SMPS(VDD1, 0x55, 15, 1000, 0x08);
|
||
TWL4030_ADJUSTABLE_SMPS(VDD2, 0x63, 16, 1000, 0x08);
|
||
/* VUSBCP is managed *only* by the USB subchip */
|
||
/* 6030 REG with base as PMC Slave Misc : 0x0030 */
|
||
/* Turnon-delay and remap configuration values for 6030 are not
|
||
verified since the specification is not public */
|
||
TWL6030_ADJUSTABLE_SMPS(VDD1);
|
||
TWL6030_ADJUSTABLE_SMPS(VDD2);
|
||
TWL6030_ADJUSTABLE_SMPS(VDD3);
|
||
TWL6030_ADJUSTABLE_LDO(VAUX1_6030, 0x54, 1000, 3300);
|
||
TWL6030_ADJUSTABLE_LDO(VAUX2_6030, 0x58, 1000, 3300);
|
||
TWL6030_ADJUSTABLE_LDO(VAUX3_6030, 0x5c, 1000, 3300);
|
||
TWL6030_ADJUSTABLE_LDO(VMMC, 0x68, 1000, 3300);
|
||
TWL6030_ADJUSTABLE_LDO(VPP, 0x6c, 1000, 3300);
|
||
TWL6030_ADJUSTABLE_LDO(VUSIM, 0x74, 1000, 3300);
|
||
/* 6025 are renamed compared to 6030 versions */
|
||
TWL6025_ADJUSTABLE_LDO(LDO2, 0x54, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO4, 0x58, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO3, 0x5c, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO5, 0x68, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO1, 0x6c, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO7, 0x74, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDO6, 0x60, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDOLN, 0x64, 1000, 3300);
|
||
TWL6025_ADJUSTABLE_LDO(LDOUSB, 0x70, 1000, 3300);
|
||
TWL4030_FIXED_LDO(VINTANA1, 0x3f, 1500, 11, 100, 0x08);
|
||
TWL4030_FIXED_LDO(VINTDIG, 0x47, 1500, 13, 100, 0x08);
|
||
TWL4030_FIXED_LDO(VUSB1V5, 0x71, 1500, 17, 100, 0x08);
|
||
TWL4030_FIXED_LDO(VUSB1V8, 0x74, 1800, 18, 100, 0x08);
|
||
TWL4030_FIXED_LDO(VUSB3V1, 0x77, 3100, 19, 150, 0x08);
|
||
TWL6030_FIXED_LDO(VANA, 0x50, 2100, 0);
|
||
TWL6030_FIXED_LDO(VCXIO, 0x60, 1800, 0);
|
||
TWL6030_FIXED_LDO(VDAC, 0x64, 1800, 0);
|
||
TWL6030_FIXED_LDO(VUSB, 0x70, 3300, 0);
|
||
TWL6030_FIXED_LDO(V1V8, 0x16, 1800, 0);
|
||
TWL6030_FIXED_LDO(V2V1, 0x1c, 2100, 0);
|
||
TWL6025_ADJUSTABLE_SMPS(SMPS3, 0x34);
|
||
TWL6025_ADJUSTABLE_SMPS(SMPS4, 0x10);
|
||
TWL6025_ADJUSTABLE_SMPS(VIO, 0x16);
|
||
|
||
static u8 twl_get_smps_offset(void)
|
||
{
|
||
u8 value;
|
||
|
||
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
|
||
TWL6030_SMPS_OFFSET);
|
||
return value;
|
||
}
|
||
|
||
static u8 twl_get_smps_mult(void)
|
||
{
|
||
u8 value;
|
||
|
||
twl_i2c_read_u8(TWL_MODULE_PM_RECEIVER, &value,
|
||
TWL6030_SMPS_MULT);
|
||
return value;
|
||
}
|
||
|
||
#define TWL_OF_MATCH(comp, family, label) \
|
||
{ \
|
||
.compatible = comp, \
|
||
.data = &family##_INFO_##label, \
|
||
}
|
||
|
||
#define TWL4030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL4030, label)
|
||
#define TWL6030_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6030, label)
|
||
#define TWL6025_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWL6025, label)
|
||
#define TWLFIXED_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLFIXED, label)
|
||
#define TWLSMPS_OF_MATCH(comp, label) TWL_OF_MATCH(comp, TWLSMPS, label)
|
||
|
||
static const struct of_device_id twl_of_match[] = {
|
||
TWL4030_OF_MATCH("ti,twl4030-vaux1", VAUX1),
|
||
TWL4030_OF_MATCH("ti,twl4030-vaux2", VAUX2_4030),
|
||
TWL4030_OF_MATCH("ti,twl5030-vaux2", VAUX2),
|
||
TWL4030_OF_MATCH("ti,twl4030-vaux3", VAUX3),
|
||
TWL4030_OF_MATCH("ti,twl4030-vaux4", VAUX4),
|
||
TWL4030_OF_MATCH("ti,twl4030-vmmc1", VMMC1),
|
||
TWL4030_OF_MATCH("ti,twl4030-vmmc2", VMMC2),
|
||
TWL4030_OF_MATCH("ti,twl4030-vpll1", VPLL1),
|
||
TWL4030_OF_MATCH("ti,twl4030-vpll2", VPLL2),
|
||
TWL4030_OF_MATCH("ti,twl4030-vsim", VSIM),
|
||
TWL4030_OF_MATCH("ti,twl4030-vdac", VDAC),
|
||
TWL4030_OF_MATCH("ti,twl4030-vintana2", VINTANA2),
|
||
TWL4030_OF_MATCH("ti,twl4030-vio", VIO),
|
||
TWL4030_OF_MATCH("ti,twl4030-vdd1", VDD1),
|
||
TWL4030_OF_MATCH("ti,twl4030-vdd2", VDD2),
|
||
TWL6030_OF_MATCH("ti,twl6030-vdd1", VDD1),
|
||
TWL6030_OF_MATCH("ti,twl6030-vdd2", VDD2),
|
||
TWL6030_OF_MATCH("ti,twl6030-vdd3", VDD3),
|
||
TWL6030_OF_MATCH("ti,twl6030-vaux1", VAUX1_6030),
|
||
TWL6030_OF_MATCH("ti,twl6030-vaux2", VAUX2_6030),
|
||
TWL6030_OF_MATCH("ti,twl6030-vaux3", VAUX3_6030),
|
||
TWL6030_OF_MATCH("ti,twl6030-vmmc", VMMC),
|
||
TWL6030_OF_MATCH("ti,twl6030-vpp", VPP),
|
||
TWL6030_OF_MATCH("ti,twl6030-vusim", VUSIM),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo2", LDO2),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo4", LDO4),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo3", LDO3),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo5", LDO5),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo1", LDO1),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo7", LDO7),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldo6", LDO6),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldoln", LDOLN),
|
||
TWL6025_OF_MATCH("ti,twl6025-ldousb", LDOUSB),
|
||
TWLFIXED_OF_MATCH("ti,twl4030-vintana1", VINTANA1),
|
||
TWLFIXED_OF_MATCH("ti,twl4030-vintdig", VINTDIG),
|
||
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v5", VUSB1V5),
|
||
TWLFIXED_OF_MATCH("ti,twl4030-vusb1v8", VUSB1V8),
|
||
TWLFIXED_OF_MATCH("ti,twl4030-vusb3v1", VUSB3V1),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-vana", VANA),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-vcxio", VCXIO),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-vdac", VDAC),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-vusb", VUSB),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-v1v8", V1V8),
|
||
TWLFIXED_OF_MATCH("ti,twl6030-v2v1", V2V1),
|
||
TWLSMPS_OF_MATCH("ti,twl6025-smps3", SMPS3),
|
||
TWLSMPS_OF_MATCH("ti,twl6025-smps4", SMPS4),
|
||
TWLSMPS_OF_MATCH("ti,twl6025-vio", VIO),
|
||
{},
|
||
};
|
||
MODULE_DEVICE_TABLE(of, twl_of_match);
|
||
|
||
static int twlreg_probe(struct platform_device *pdev)
|
||
{
|
||
int i, id;
|
||
struct twlreg_info *info;
|
||
const struct twlreg_info *template;
|
||
struct regulator_init_data *initdata;
|
||
struct regulation_constraints *c;
|
||
struct regulator_dev *rdev;
|
||
struct twl_regulator_driver_data *drvdata;
|
||
const struct of_device_id *match;
|
||
struct regulator_config config = { };
|
||
|
||
match = of_match_device(twl_of_match, &pdev->dev);
|
||
if (match) {
|
||
template = match->data;
|
||
id = template->desc.id;
|
||
initdata = of_get_regulator_init_data(&pdev->dev,
|
||
pdev->dev.of_node);
|
||
drvdata = NULL;
|
||
} else {
|
||
id = pdev->id;
|
||
initdata = pdev->dev.platform_data;
|
||
for (i = 0, template = NULL; i < ARRAY_SIZE(twl_of_match); i++) {
|
||
template = twl_of_match[i].data;
|
||
if (template && template->desc.id == id)
|
||
break;
|
||
}
|
||
if (i == ARRAY_SIZE(twl_of_match))
|
||
return -ENODEV;
|
||
|
||
drvdata = initdata->driver_data;
|
||
if (!drvdata)
|
||
return -EINVAL;
|
||
}
|
||
|
||
if (!template)
|
||
return -ENODEV;
|
||
|
||
if (!initdata)
|
||
return -EINVAL;
|
||
|
||
info = kmemdup(template, sizeof (*info), GFP_KERNEL);
|
||
if (!info)
|
||
return -ENOMEM;
|
||
|
||
if (drvdata) {
|
||
/* copy the driver data into regulator data */
|
||
info->features = drvdata->features;
|
||
info->data = drvdata->data;
|
||
info->set_voltage = drvdata->set_voltage;
|
||
info->get_voltage = drvdata->get_voltage;
|
||
}
|
||
|
||
/* Constrain board-specific capabilities according to what
|
||
* this driver and the chip itself can actually do.
|
||
*/
|
||
c = &initdata->constraints;
|
||
c->valid_modes_mask &= REGULATOR_MODE_NORMAL | REGULATOR_MODE_STANDBY;
|
||
c->valid_ops_mask &= REGULATOR_CHANGE_VOLTAGE
|
||
| REGULATOR_CHANGE_MODE
|
||
| REGULATOR_CHANGE_STATUS;
|
||
switch (id) {
|
||
case TWL4030_REG_VIO:
|
||
case TWL4030_REG_VDD1:
|
||
case TWL4030_REG_VDD2:
|
||
case TWL4030_REG_VPLL1:
|
||
case TWL4030_REG_VINTANA1:
|
||
case TWL4030_REG_VINTANA2:
|
||
case TWL4030_REG_VINTDIG:
|
||
c->always_on = true;
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
|
||
switch (id) {
|
||
case TWL6025_REG_SMPS3:
|
||
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS3)
|
||
info->flags |= SMPS_EXTENDED_EN;
|
||
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS3)
|
||
info->flags |= SMPS_OFFSET_EN;
|
||
break;
|
||
case TWL6025_REG_SMPS4:
|
||
if (twl_get_smps_mult() & SMPS_MULTOFFSET_SMPS4)
|
||
info->flags |= SMPS_EXTENDED_EN;
|
||
if (twl_get_smps_offset() & SMPS_MULTOFFSET_SMPS4)
|
||
info->flags |= SMPS_OFFSET_EN;
|
||
break;
|
||
case TWL6025_REG_VIO:
|
||
if (twl_get_smps_mult() & SMPS_MULTOFFSET_VIO)
|
||
info->flags |= SMPS_EXTENDED_EN;
|
||
if (twl_get_smps_offset() & SMPS_MULTOFFSET_VIO)
|
||
info->flags |= SMPS_OFFSET_EN;
|
||
break;
|
||
}
|
||
|
||
config.dev = &pdev->dev;
|
||
config.init_data = initdata;
|
||
config.driver_data = info;
|
||
config.of_node = pdev->dev.of_node;
|
||
|
||
rdev = regulator_register(&info->desc, &config);
|
||
if (IS_ERR(rdev)) {
|
||
dev_err(&pdev->dev, "can't register %s, %ld\n",
|
||
info->desc.name, PTR_ERR(rdev));
|
||
kfree(info);
|
||
return PTR_ERR(rdev);
|
||
}
|
||
platform_set_drvdata(pdev, rdev);
|
||
|
||
if (twl_class_is_4030())
|
||
twlreg_write(info, TWL_MODULE_PM_RECEIVER, VREG_REMAP,
|
||
info->remap);
|
||
|
||
/* NOTE: many regulators support short-circuit IRQs (presentable
|
||
* as REGULATOR_OVER_CURRENT notifications?) configured via:
|
||
* - SC_CONFIG
|
||
* - SC_DETECT1 (vintana2, vmmc1/2, vaux1/2/3/4)
|
||
* - SC_DETECT2 (vusb, vdac, vio, vdd1/2, vpll2)
|
||
* - IT_CONFIG
|
||
*/
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int twlreg_remove(struct platform_device *pdev)
|
||
{
|
||
struct regulator_dev *rdev = platform_get_drvdata(pdev);
|
||
struct twlreg_info *info = rdev->reg_data;
|
||
|
||
regulator_unregister(rdev);
|
||
kfree(info);
|
||
return 0;
|
||
}
|
||
|
||
MODULE_ALIAS("platform:twl_reg");
|
||
|
||
static struct platform_driver twlreg_driver = {
|
||
.probe = twlreg_probe,
|
||
.remove = twlreg_remove,
|
||
/* NOTE: short name, to work around driver model truncation of
|
||
* "twl_regulator.12" (and friends) to "twl_regulator.1".
|
||
*/
|
||
.driver = {
|
||
.name = "twl_reg",
|
||
.owner = THIS_MODULE,
|
||
.of_match_table = of_match_ptr(twl_of_match),
|
||
},
|
||
};
|
||
|
||
static int __init twlreg_init(void)
|
||
{
|
||
return platform_driver_register(&twlreg_driver);
|
||
}
|
||
subsys_initcall(twlreg_init);
|
||
|
||
static void __exit twlreg_exit(void)
|
||
{
|
||
platform_driver_unregister(&twlreg_driver);
|
||
}
|
||
module_exit(twlreg_exit)
|
||
|
||
MODULE_DESCRIPTION("TWL regulator driver");
|
||
MODULE_LICENSE("GPL");
|