492 lines
13 KiB
C
492 lines
13 KiB
C
/*
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* drivers/power/axp/axp2101/axp2101-regu.c
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* (C) Copyright 2010-2016
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Pannan <pannan@allwinnertech.com>
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*
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* regulator driver of axp2101
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*/
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#include <linux/kernel.h>
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#include <linux/err.h>
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#include <linux/init.h>
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#include <linux/regmap.h>
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#include <linux/platform_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/module.h>
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#include <linux/power/axp_depend.h>
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#include "../axp-core.h"
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#include "../axp-regulator.h"
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#include "axp2101.h"
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#include "axp2101-regu.h"
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enum AXP_REGLS {
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VCC_DCDC1,
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VCC_DCDC2,
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VCC_DCDC3,
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VCC_DCDC4,
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VCC_LDO1,
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VCC_LDO2,
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VCC_LDO3,
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VCC_LDO4,
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VCC_LDO5,
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VCC_LDO6,
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VCC_LDO7,
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VCC_LDO8,
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VCC_LDO9,
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VCC_LDO10,
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VCC_LDO11,
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VCC_DCDC5,
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VCC_2101_MAX,
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};
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struct axp2101_regulators {
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struct regulator_dev *regulators[VCC_2101_MAX];
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struct axp_dev *chip;
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};
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#define AXP2101_LDO(_id, min, max, step1, vreg, shift, nbits, ereg, emask, \
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enval, disval, switch_vol, step2, new_level, mode_addr, \
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freq_addr, dvm_ereg, dvm_ebit, dvm_flag) \
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AXP_LDO(AXP2101, _id, min, max, step1, vreg, shift, nbits, ereg, \
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emask, enval, disval, switch_vol, step2, new_level, mode_addr, \
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freq_addr, dvm_ereg, dvm_ebit, dvm_flag)
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#define AXP2101_DCDC(_id, min, max, step1, vreg, shift, nbits, ereg, emask, \
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enval, disval, switch_vol, step2, new_level, mode_addr, \
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mode_mask, freq_addr, dvm_ereg, dvm_ebit, dvm_flag) \
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AXP_DCDC(AXP2101, _id, min, max, step1, vreg, shift, nbits, ereg, \
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emask, enval, disval, switch_vol, step2, new_level, \
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mode_addr, mode_mask, freq_addr, dvm_ereg, dvm_ebit, \
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dvm_flag)
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#define AXP2101_SW(_id, min, max, step1, vreg, shift, nbits, ereg, emask, \
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enval, disval, switch_vol, step2, new_level, mode_addr, \
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freq_addr, dvm_ereg, dvm_ebit, dvm_flag) \
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AXP_SW(AXP2101, _id, min, max, step1, vreg, shift, nbits, ereg, emask, \
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enval, disval, switch_vol, step2, new_level, mode_addr, \
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freq_addr, dvm_ereg, dvm_ebit, dvm_flag)
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static struct axp_regulator_info axp2101_regulator_info[] = {
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AXP2101_DCDC(1, 1500, 3400, 100, DCDC1, 0, 5, DCDC1EN, 0x01, 0x01, 0x00,
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0, 1, 0, 0x81, BIT(2), 0x3B, 0, 0, 0),
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AXP2101_DCDC(2, 500, 1540, 10, DCDC2, 0, 7, DCDC2EN, 0x02, 0x02, 0x00,
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1200, 20, 0, 0x81, BIT(3), 0x3B, 0x83, 7, 1),
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AXP2101_DCDC(3, 500, 1540, 10, DCDC3, 0, 7, DCDC3EN, 0x04, 0x04, 0x00,
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1200, 20, 0, 0x81, BIT(4), 0x3B, 0x84, 7, 1),
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AXP2101_DCDC(4, 500, 1840, 10, DCDC4, 0, 7, DCDC4EN, 0x08, 0x08, 0x00,
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1200, 20, 0, 0x81, BIT(5), 0x3B, 0, 0, 0),
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AXP2101_LDO(1, 3000, 3000, 1, LDO1, 0, 0, LDO1EN, 0x01, 0x01, 0x00, 0,
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1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(2, 3000, 3000, 1, LDO2, 0, 0, LDO2EN, 0x01, 0x01, 0x00, 0,
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1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(3, 500, 3500, 100, LDO3, 0, 5, LDO3EN, BIT(0), BIT(0), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(4, 500, 3500, 100, LDO4, 0, 5, LDO4EN, BIT(1), BIT(1), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(5, 500, 3500, 100, LDO5, 0, 5, LDO5EN, BIT(2), BIT(2), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(6, 500, 3500, 100, LDO6, 0, 5, LDO6EN, BIT(3), BIT(3), 0x00,
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3400, 200, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(7, 500, 3500, 100, LDO7, 0, 5, LDO7EN, BIT(4), BIT(4), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(8, 500, 3500, 100, LDO8, 0, 5, LDO8EN, BIT(5), BIT(5), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(9, 500, 1400, 50, LDO9, 0, 5, LDO9EN, BIT(6), BIT(6), 0x00,
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0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(10, 500, 3500, 100, LDO10, 0, 5, LDO10EN, BIT(7), BIT(7),
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0x00, 0, 1, 0, 0, 0, 0, 0, 0),
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AXP2101_LDO(11, 500, 1400, 50, LDO11, 0, 5, LDO11EN, BIT(0), BIT(0),
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0x00, 0, 1, 0, 0, 0, 0, 0, 0),
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/* dcdc5 must enable accross factory efuse to enable it */
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AXP2101_DCDC(5, 1400, 3700, 100, DCDC5, 0, 5, DCDC5EN, 0x10, 0x10, 0x00,
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0, 1, 0, 0x86, BIT(5), 0x3B, 0, 0, 0),
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};
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static struct regulator_init_data axp_regl_init_data[] = {
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[VCC_DCDC1] = {
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.constraints = {
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.name = "axp2101_dcdc1",
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.min_uV = 1500000,
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.max_uV = 3400000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_DCDC2] = {
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.constraints = {
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.name = "axp2101_dcdc2",
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.min_uV = 500000,
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.max_uV = 1540000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_DCDC3] = {
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.constraints = {
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.name = "axp2101_dcdc3",
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.min_uV = 500000,
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.max_uV = 1540000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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#ifdef CONFIG_ARCH_SUN8IW16
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.always_on = 1,
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#endif
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},
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},
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[VCC_DCDC4] = {
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.constraints = {
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.name = "axp2101_dcdc4",
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.min_uV = 500000,
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.max_uV = 1840000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO1] = {
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.constraints = {
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.name = "axp2101_rtc",
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.min_uV = 3000000,
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.max_uV = 3000000,
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},
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},
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[VCC_LDO2] = {
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.constraints = {
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.name = "axp2101_rtc1",
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.min_uV = 3000000,
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.max_uV = 3000000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO3] = {
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.constraints = {
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.name = "axp2101_aldo1",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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#ifdef CONFIG_ARCH_SUN8IW16
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.always_on = 1,
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#endif
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},
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},
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[VCC_LDO4] = {
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.constraints = {
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.name = "axp2101_aldo2",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO5] = {
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.constraints = {
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.name = "axp2101_aldo3",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO6] = {
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.constraints = {
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.name = "axp2101_aldo4",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO7] = {
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.constraints = {
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.name = "axp2101_bldo1",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO8] = {
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.constraints = {
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.name = "axp2101_bldo2",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO9] = {
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.constraints = {
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.name = "axp2101_cpuldos",
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.min_uV = 500000,
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.max_uV = 1400000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO10] = {
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.constraints = {
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.name = "axp2101_dldo1",
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.min_uV = 500000,
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.max_uV = 3500000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_LDO11] = {
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.constraints = {
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.name = "axp2101_dldo2",
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.min_uV = 500000,
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.max_uV = 1400000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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[VCC_DCDC5] = {
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.constraints = {
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.name = "axp2101_dcdc5",
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.min_uV = 1400000,
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.max_uV = 3700000,
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.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
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| REGULATOR_CHANGE_STATUS,
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},
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},
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};
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static ssize_t workmode_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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int ret;
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uint8_t val;
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struct regulator_dev *rdev;
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struct axp_regulator_info *info;
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struct axp_regmap *regmap;
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rdev = container_of(dev, struct regulator_dev, dev);
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info = rdev_get_drvdata(rdev);
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regmap = info->regmap;
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ret = axp_regmap_read(regmap, info->mode_reg, &val);
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if (ret)
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return sprintf(buf, "IO ERROR\n");
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if ((val & info->mode_mask) == info->mode_mask)
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return sprintf(buf, "PWM\n");
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else
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return sprintf(buf, "AUTO\n");
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}
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static ssize_t workmode_store(struct device *dev, struct device_attribute *attr,
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const char *buf, size_t count)
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{
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uint8_t val;
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struct regulator_dev *rdev;
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struct axp_regulator_info *info;
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struct axp_regmap *regmap;
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unsigned int mode;
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int ret;
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rdev = container_of(dev, struct regulator_dev, dev);
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info = rdev_get_drvdata(rdev);
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regmap = info->regmap;
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ret = sscanf(buf, "%u", &mode);
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if (ret != 1)
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return -EINVAL;
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val = !!mode;
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if (val)
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axp_regmap_set_bits(regmap, info->mode_reg, info->mode_mask);
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else
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axp_regmap_clr_bits(regmap, info->mode_reg, info->mode_mask);
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return count;
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}
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static struct device_attribute axp_regu_attrs[] = {
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AXP_REGULATOR_ATTR(workmode),
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};
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static int axp_regu_create_attrs(struct device *dev)
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{
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int j, ret;
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for (j = 0; j < ARRAY_SIZE(axp_regu_attrs); j++) {
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ret = device_create_file(dev, &axp_regu_attrs[j]);
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if (ret)
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goto sysfs_failed;
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}
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return 0;
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sysfs_failed:
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while (j--)
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device_remove_file(dev, &axp_regu_attrs[j]);
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return ret;
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}
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static s32 axp2101_regu_dependence(const char *ldo_name)
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{
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s32 axp2101_dependence = 0;
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if (strstr(ldo_name, "dcdc1") != NULL)
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axp2101_dependence |= AXP2101_DCDC1_BIT;
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else if (strstr(ldo_name, "dcdc2") != NULL)
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axp2101_dependence |= AXP2101_DCDC2_BIT;
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else if (strstr(ldo_name, "dcdc3") != NULL)
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axp2101_dependence |= AXP2101_DCDC3_BIT;
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else if (strstr(ldo_name, "dcdc4") != NULL)
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axp2101_dependence |= AXP2101_DCDC4_BIT;
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else if (strstr(ldo_name, "aldo1") != NULL)
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axp2101_dependence |= AXP2101_ALDO1_BIT;
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else if (strstr(ldo_name, "aldo2") != NULL)
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axp2101_dependence |= AXP2101_ALDO2_BIT;
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else if (strstr(ldo_name, "aldo3") != NULL)
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axp2101_dependence |= AXP2101_ALDO3_BIT;
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else if (strstr(ldo_name, "aldo4") != NULL)
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axp2101_dependence |= AXP2101_ALDO4_BIT;
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else if (strstr(ldo_name, "bldo1") != NULL)
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axp2101_dependence |= AXP2101_BLDO1_BIT;
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else if (strstr(ldo_name, "bldo2") != NULL)
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axp2101_dependence |= AXP2101_BLDO2_BIT;
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else if (strstr(ldo_name, "dldo1") != NULL)
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axp2101_dependence |= AXP2101_DLDO1_BIT;
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else if (strstr(ldo_name, "dldo2") != NULL)
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axp2101_dependence |= AXP2101_DLDO2_BIT;
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else if (strstr(ldo_name, "cpuldos") != NULL)
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axp2101_dependence |= AXP2101_CPULDOS_BIT;
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else if (strstr(ldo_name, "rtc1") != NULL)
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axp2101_dependence |= AXP2101_RTC1_BIT;
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else if (strstr(ldo_name, "rtc") != NULL)
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axp2101_dependence |= AXP2101_RTC_BIT;
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else if (strstr(ldo_name, "dcdc5") != NULL)
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axp2101_dependence |= AXP2101_DCDC5_BIT;
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else
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return -1;
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axp2101_dependence |= (0 << 30);
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return axp2101_dependence;
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}
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static int axp2101_regulator_probe(struct platform_device *pdev)
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{
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s32 i, ret = 0;
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struct axp_regulator_info *info;
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struct axp2101_regulators *regu_data;
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struct axp_dev *axp_dev = dev_get_drvdata(pdev->dev.parent);
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if (pdev->dev.of_node) {
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ret = axp_regulator_dt_parse(pdev->dev.of_node,
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axp_regl_init_data,
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axp2101_regu_dependence);
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if (ret) {
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pr_err("%s parse device tree err\n", __func__);
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return -EINVAL;
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}
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} else {
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pr_err("axp2101 regulator device tree err!\n");
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return -EBUSY;
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}
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regu_data = devm_kzalloc(&pdev->dev, sizeof(*regu_data), GFP_KERNEL);
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if (!regu_data)
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return -ENOMEM;
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regu_data->chip = axp_dev;
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platform_set_drvdata(pdev, regu_data);
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/*
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* set dcdc1 mode to pwm
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* dcdc1 always load high
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*/
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axp_regmap_set_bits(axp_dev->regmap, AXP2101_DCDCMODE, BIT(2));
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for (i = 0; i < VCC_2101_MAX; i++) {
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info = &axp2101_regulator_info[i];
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info->pmu_num = axp_dev->pmu_num;
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regu_data->regulators[i] = axp_regulator_register(&pdev->dev,
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axp_dev->regmap, &axp_regl_init_data[i], info);
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if (IS_ERR(regu_data->regulators[i])) {
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dev_err(&pdev->dev, "failed to register regulator %s\n",
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info->desc.name);
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while (--i >= 0)
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axp_regulator_unregister(
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regu_data->regulators[i]);
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return -1;
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}
|
|
|
|
if (info->desc.id >= AXP_DCDC_ID_START) {
|
|
ret = axp_regu_create_attrs(
|
|
®u_data->regulators[i]->dev);
|
|
if (ret)
|
|
dev_err(&pdev->dev,
|
|
"failed to register regulator attr %s\n",
|
|
info->desc.name);
|
|
}
|
|
}
|
|
|
|
/* voltage not to the OTP default when wakeup */
|
|
/* axp_regmap_set_bits(axp_dev->regmap, axp2101_TEMPERATURE, 0x02); */
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int axp2101_regulator_remove(struct platform_device *pdev)
|
|
{
|
|
struct axp2101_regulators *regu_data = platform_get_drvdata(pdev);
|
|
int i;
|
|
|
|
for (i = 0; i < VCC_2101_MAX; i++)
|
|
regulator_unregister(regu_data->regulators[i]);
|
|
|
|
return 0;
|
|
}
|
|
static const struct of_device_id axp2101_regu_dt_ids[] = {
|
|
{
|
|
.compatible = "axp2101-regulator",
|
|
},
|
|
{},
|
|
};
|
|
MODULE_DEVICE_TABLE(of, axp2101_regu_dt_ids);
|
|
|
|
static struct platform_driver axp2101_regulator_driver = {
|
|
.driver = {
|
|
.name = "axp2101-regulator",
|
|
.of_match_table = axp2101_regu_dt_ids,
|
|
},
|
|
.probe = axp2101_regulator_probe,
|
|
.remove = axp2101_regulator_remove,
|
|
};
|
|
|
|
static int __init axp2101_regulator_initcall(void)
|
|
{
|
|
int ret;
|
|
|
|
ret = platform_driver_register(&axp2101_regulator_driver);
|
|
if (IS_ERR_VALUE(ret)) {
|
|
pr_err("%s: failed, errno %d\n", __func__, ret);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
subsys_initcall(axp2101_regulator_initcall);
|
|
|
|
MODULE_DESCRIPTION("Regulator Driver of AXP2101");
|
|
MODULE_AUTHOR("pannan");
|
|
MODULE_LICENSE("GPL");
|