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f9cc65cfda
M7350/kernel/drivers/mfd/pm8038-core.c
T f9cc65cfda M7350v1_en_gpl
2024-09-09 08:52:07 +00:00

885 lines
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/*
* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#define pr_fmt(fmt) "%s: " fmt, __func__
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/string.h>
#include <linux/msm_ssbi.h>
#include <linux/mfd/core.h>
#include <linux/mfd/pm8xxx/pm8038.h>
#include <linux/mfd/pm8xxx/pm8921.h>
#include <linux/mfd/pm8xxx/core.h>
#include <linux/mfd/pm8xxx/regulator.h>
#define REG_HWREV 0x002 /* PMIC4 revision */
#define REG_HWREV_2 0x0E8 /* PMIC4 revision 2 */
#define REG_MPP_BASE 0x050
#define REG_RTC_BASE 0x11D
#define REG_IRQ_BASE 0x1BB
#define REG_BATT_ALARM_THRESH 0x023
#define REG_BATT_ALARM_CTRL1 0x024
#define REG_BATT_ALARM_CTRL2 0x021
#define REG_BATT_ALARM_PWM_CTRL 0x020
#define REG_SPK_BASE 0x253
#define REG_SPK_REGISTERS 6
#define REG_TEMP_ALARM_CTRL 0x01B
#define REG_TEMP_ALARM_PWM 0x09B
#define PM8038_VERSION_MASK 0xFFF0
#define PM8038_VERSION_VALUE 0x09F0
#define PM8038_REVISION_MASK 0x000F
#define REG_PM8038_PON_CNTRL_3 0x01D
#define SINGLE_IRQ_RESOURCE(_name, _irq) \
{ \
.name = _name, \
.start = _irq, \
.end = _irq, \
.flags = IORESOURCE_IRQ, \
}
struct pm8038 {
struct device *dev;
struct pm_irq_chip *irq_chip;
struct mfd_cell *mfd_regulators;
struct pm8xxx_regulator_core_platform_data *regulator_cdata;
u32 rev_registers;
u8 restart_reason;
};
static int pm8038_readb(const struct device *dev, u16 addr, u8 *val)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return msm_ssbi_read(pmic->dev->parent, addr, val, 1);
}
static int pm8038_writeb(const struct device *dev, u16 addr, u8 val)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return msm_ssbi_write(pmic->dev->parent, addr, &val, 1);
}
static int pm8038_read_buf(const struct device *dev, u16 addr, u8 *buf,
int cnt)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return msm_ssbi_read(pmic->dev->parent, addr, buf, cnt);
}
static int pm8038_write_buf(const struct device *dev, u16 addr, u8 *buf,
int cnt)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return msm_ssbi_write(pmic->dev->parent, addr, buf, cnt);
}
static int pm8038_read_irq_stat(const struct device *dev, int irq)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return pm8xxx_get_irq_stat(pmic->irq_chip, irq);
}
static enum pm8xxx_version pm8038_get_version(const struct device *dev)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
enum pm8xxx_version version = -ENODEV;
if ((pmic->rev_registers & PM8038_VERSION_MASK) == PM8038_VERSION_VALUE)
version = PM8XXX_VERSION_8038;
return version;
}
static int pm8038_get_revision(const struct device *dev)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return pmic->rev_registers & PM8038_REVISION_MASK;
}
static u8 pm8038_restart_reason(const struct device *dev)
{
const struct pm8xxx_drvdata *pm8038_drvdata = dev_get_drvdata(dev);
const struct pm8038 *pmic = pm8038_drvdata->pm_chip_data;
return pmic->restart_reason;
}
static struct pm8xxx_drvdata pm8038_drvdata = {
.pmic_readb = pm8038_readb,
.pmic_writeb = pm8038_writeb,
.pmic_read_buf = pm8038_read_buf,
.pmic_write_buf = pm8038_write_buf,
.pmic_read_irq_stat = pm8038_read_irq_stat,
.pmic_get_version = pm8038_get_version,
.pmic_get_revision = pm8038_get_revision,
.pmic_restart_reason = pm8038_restart_reason,
};
static const struct resource gpio_cell_resources[] __devinitconst = {
[0] = {
.start = PM8038_IRQ_BLOCK_BIT(PM8038_GPIO_BLOCK_START, 0),
.end = PM8038_IRQ_BLOCK_BIT(PM8038_GPIO_BLOCK_START, 0)
+ PM8038_NR_GPIOS - 1,
.flags = IORESOURCE_IRQ,
},
};
static struct mfd_cell gpio_cell __devinitdata = {
.name = PM8XXX_GPIO_DEV_NAME,
.id = -1,
.resources = gpio_cell_resources,
.num_resources = ARRAY_SIZE(gpio_cell_resources),
};
static const struct resource adc_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE(NULL, PM8038_ADC_EOC_USR_IRQ),
SINGLE_IRQ_RESOURCE(NULL, PM8038_ADC_BATT_TEMP_WARM_IRQ),
SINGLE_IRQ_RESOURCE(NULL, PM8038_ADC_BATT_TEMP_COLD_IRQ),
};
static struct mfd_cell adc_cell __devinitdata = {
.name = PM8XXX_ADC_DEV_NAME,
.id = -1,
.resources = adc_cell_resources,
.num_resources = ARRAY_SIZE(adc_cell_resources),
};
static const struct resource charger_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE("USBIN_VALID_IRQ", PM8921_USBIN_VALID_IRQ),
SINGLE_IRQ_RESOURCE("USBIN_OV_IRQ", PM8921_USBIN_OV_IRQ),
SINGLE_IRQ_RESOURCE("BATT_INSERTED_IRQ", PM8921_BATT_INSERTED_IRQ),
SINGLE_IRQ_RESOURCE("VBATDET_LOW_IRQ", PM8921_VBATDET_LOW_IRQ),
SINGLE_IRQ_RESOURCE("USBIN_UV_IRQ", PM8921_USBIN_UV_IRQ),
SINGLE_IRQ_RESOURCE("VBAT_OV_IRQ", PM8921_VBAT_OV_IRQ),
SINGLE_IRQ_RESOURCE("CHGWDOG_IRQ", PM8921_CHGWDOG_IRQ),
SINGLE_IRQ_RESOURCE("VCP_IRQ", PM8921_VCP_IRQ),
SINGLE_IRQ_RESOURCE("ATCDONE_IRQ", PM8921_ATCDONE_IRQ),
SINGLE_IRQ_RESOURCE("ATCFAIL_IRQ", PM8921_ATCFAIL_IRQ),
SINGLE_IRQ_RESOURCE("CHGDONE_IRQ", PM8921_CHGDONE_IRQ),
SINGLE_IRQ_RESOURCE("CHGFAIL_IRQ", PM8921_CHGFAIL_IRQ),
SINGLE_IRQ_RESOURCE("CHGSTATE_IRQ", PM8921_CHGSTATE_IRQ),
SINGLE_IRQ_RESOURCE("LOOP_CHANGE_IRQ", PM8921_LOOP_CHANGE_IRQ),
SINGLE_IRQ_RESOURCE("FASTCHG_IRQ", PM8921_FASTCHG_IRQ),
SINGLE_IRQ_RESOURCE("TRKLCHG_IRQ", PM8921_TRKLCHG_IRQ),
SINGLE_IRQ_RESOURCE("BATT_REMOVED_IRQ", PM8921_BATT_REMOVED_IRQ),
SINGLE_IRQ_RESOURCE("BATTTEMP_HOT_IRQ", PM8921_BATTTEMP_HOT_IRQ),
SINGLE_IRQ_RESOURCE("CHGHOT_IRQ", PM8921_CHGHOT_IRQ),
SINGLE_IRQ_RESOURCE("BATTTEMP_COLD_IRQ", PM8921_BATTTEMP_COLD_IRQ),
SINGLE_IRQ_RESOURCE("CHG_GONE_IRQ", PM8921_CHG_GONE_IRQ),
SINGLE_IRQ_RESOURCE("BAT_TEMP_OK_IRQ", PM8921_BAT_TEMP_OK_IRQ),
SINGLE_IRQ_RESOURCE("COARSE_DET_LOW_IRQ", PM8921_COARSE_DET_LOW_IRQ),
SINGLE_IRQ_RESOURCE("VDD_LOOP_IRQ", PM8921_VDD_LOOP_IRQ),
SINGLE_IRQ_RESOURCE("VREG_OV_IRQ", PM8921_VREG_OV_IRQ),
SINGLE_IRQ_RESOURCE("VBATDET_IRQ", PM8921_VBATDET_IRQ),
SINGLE_IRQ_RESOURCE("BATFET_IRQ", PM8921_BATFET_IRQ),
SINGLE_IRQ_RESOURCE("PSI_IRQ", PM8921_PSI_IRQ),
SINGLE_IRQ_RESOURCE("DCIN_VALID_IRQ", PM8921_DCIN_VALID_IRQ),
SINGLE_IRQ_RESOURCE("DCIN_OV_IRQ", PM8921_DCIN_OV_IRQ),
SINGLE_IRQ_RESOURCE("DCIN_UV_IRQ", PM8921_DCIN_UV_IRQ),
};
static const struct resource bms_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE("PM8921_BMS_SBI_WRITE_OK", PM8921_BMS_SBI_WRITE_OK),
SINGLE_IRQ_RESOURCE("PM8921_BMS_CC_THR", PM8921_BMS_CC_THR),
SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_THR", PM8921_BMS_VSENSE_THR),
SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_FOR_R", PM8921_BMS_VSENSE_FOR_R),
SINGLE_IRQ_RESOURCE("PM8921_BMS_OCV_FOR_R", PM8921_BMS_OCV_FOR_R),
SINGLE_IRQ_RESOURCE("PM8921_BMS_GOOD_OCV", PM8921_BMS_GOOD_OCV),
SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_AVG", PM8921_BMS_VSENSE_AVG),
};
static struct mfd_cell charger_cell __devinitdata = {
.name = PM8921_CHARGER_DEV_NAME,
.id = -1,
.resources = charger_cell_resources,
.num_resources = ARRAY_SIZE(charger_cell_resources),
};
static struct mfd_cell bms_cell __devinitdata = {
.name = PM8921_BMS_DEV_NAME,
.id = -1,
.resources = bms_cell_resources,
.num_resources = ARRAY_SIZE(bms_cell_resources),
};
static const struct resource mpp_cell_resources[] __devinitconst = {
{
.start = PM8038_IRQ_BLOCK_BIT(PM8038_MPP_BLOCK_START, 0),
.end = PM8038_IRQ_BLOCK_BIT(PM8038_MPP_BLOCK_START, 0)
+ PM8038_NR_MPPS - 1,
.flags = IORESOURCE_IRQ,
},
};
static struct mfd_cell mpp_cell __devinitdata = {
.name = PM8XXX_MPP_DEV_NAME,
.id = 1,
.resources = mpp_cell_resources,
.num_resources = ARRAY_SIZE(mpp_cell_resources),
};
static const struct resource rtc_cell_resources[] __devinitconst = {
[0] = SINGLE_IRQ_RESOURCE(NULL, PM8038_RTC_ALARM_IRQ),
[1] = {
.name = "pmic_rtc_base",
.start = REG_RTC_BASE,
.end = REG_RTC_BASE,
.flags = IORESOURCE_IO,
},
};
static struct mfd_cell rtc_cell __devinitdata = {
.name = PM8XXX_RTC_DEV_NAME,
.id = -1,
.resources = rtc_cell_resources,
.num_resources = ARRAY_SIZE(rtc_cell_resources),
};
static const struct resource resources_pwrkey[] __devinitconst = {
SINGLE_IRQ_RESOURCE(NULL, PM8038_PWRKEY_REL_IRQ),
SINGLE_IRQ_RESOURCE(NULL, PM8038_PWRKEY_PRESS_IRQ),
};
static struct mfd_cell pwrkey_cell __devinitdata = {
.name = PM8XXX_PWRKEY_DEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(resources_pwrkey),
.resources = resources_pwrkey,
};
static struct mfd_cell pwm_cell __devinitdata = {
.name = PM8XXX_PWM_DEV_NAME,
.id = -1,
};
static struct mfd_cell misc_cell __devinitdata = {
.name = PM8XXX_MISC_DEV_NAME,
.id = -1,
};
static struct mfd_cell leds_cell __devinitdata = {
.name = PM8XXX_LEDS_DEV_NAME,
.id = -1,
};
static const struct resource resources_spk[] __devinitconst = {
[0] = {
.name = PM8XXX_SPK_DEV_NAME,
.start = REG_SPK_BASE,
.end = REG_SPK_BASE + REG_SPK_REGISTERS - 1,
.flags = IORESOURCE_IO,
},
};
static struct mfd_cell spk_cell __devinitdata = {
.name = PM8XXX_SPK_DEV_NAME,
.id = -1,
.num_resources = ARRAY_SIZE(resources_spk),
.resources = resources_spk,
};
static struct mfd_cell debugfs_cell __devinitdata = {
.name = "pm8xxx-debug",
.id = 0,
.platform_data = "pm8038-dbg",
.pdata_size = sizeof("pm8038-dbg"),
};
static const struct resource thermal_alarm_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE("pm8038_tempstat_irq", PM8038_TEMPSTAT_IRQ),
SINGLE_IRQ_RESOURCE("pm8038_overtemp_irq", PM8038_OVERTEMP_IRQ),
};
static struct pm8xxx_tm_core_data thermal_alarm_cdata = {
.adc_channel = CHANNEL_DIE_TEMP,
.adc_type = PM8XXX_TM_ADC_PM8XXX_ADC,
.reg_addr_temp_alarm_ctrl = REG_TEMP_ALARM_CTRL,
.reg_addr_temp_alarm_pwm = REG_TEMP_ALARM_PWM,
.tm_name = "pm8038_tz",
.irq_name_temp_stat = "pm8038_tempstat_irq",
.irq_name_over_temp = "pm8038_overtemp_irq",
};
static struct mfd_cell thermal_alarm_cell __devinitdata = {
.name = PM8XXX_TM_DEV_NAME,
.id = -1,
.resources = thermal_alarm_cell_resources,
.num_resources = ARRAY_SIZE(thermal_alarm_cell_resources),
.platform_data = &thermal_alarm_cdata,
.pdata_size = sizeof(struct pm8xxx_tm_core_data),
};
static const struct resource batt_alarm_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE("pm8921_batt_alarm_irq", PM8038_BATT_ALARM_IRQ),
};
static struct pm8xxx_batt_alarm_core_data batt_alarm_cdata = {
.irq_name = "pm8921_batt_alarm_irq",
.reg_addr_threshold = REG_BATT_ALARM_THRESH,
.reg_addr_ctrl1 = REG_BATT_ALARM_CTRL1,
.reg_addr_ctrl2 = REG_BATT_ALARM_CTRL2,
.reg_addr_pwm_ctrl = REG_BATT_ALARM_PWM_CTRL,
};
static struct mfd_cell batt_alarm_cell __devinitdata = {
.name = PM8XXX_BATT_ALARM_DEV_NAME,
.id = -1,
.resources = batt_alarm_cell_resources,
.num_resources = ARRAY_SIZE(batt_alarm_cell_resources),
.platform_data = &batt_alarm_cdata,
.pdata_size = sizeof(struct pm8xxx_batt_alarm_core_data),
};
static const struct resource ccadc_cell_resources[] __devinitconst = {
SINGLE_IRQ_RESOURCE("PM8921_BMS_CCADC_EOC", PM8921_BMS_CCADC_EOC),
};
static struct mfd_cell ccadc_cell __devinitdata = {
.name = PM8XXX_CCADC_DEV_NAME,
.id = -1,
.resources = ccadc_cell_resources,
.num_resources = ARRAY_SIZE(ccadc_cell_resources),
};
static struct mfd_cell vibrator_cell __devinitdata = {
.name = PM8XXX_VIBRATOR_DEV_NAME,
.id = -1,
};
static struct pm8xxx_vreg regulator_data[] = {
/* name pc_name ctrl test hpm_min */
NLDO1200("8038_l1", 0x0AE, 0x0AF, LDO_1200),
NLDO("8038_l2", "8038_l2_pc", 0x0B0, 0x0B1, LDO_150),
PLDO("8038_l3", "8038_l3_pc", 0x0B2, 0x0B3, LDO_50),
PLDO("8038_l4", "8038_l4_pc", 0x0B4, 0x0B5, LDO_50),
PLDO("8038_l5", "8038_l5_pc", 0x0B6, 0x0B7, LDO_600),
PLDO("8038_l6", "8038_l6_pc", 0x0B8, 0x0B9, LDO_600),
PLDO("8038_l7", "8038_l7_pc", 0x0BA, 0x0BB, LDO_600),
PLDO("8038_l8", "8038_l8_pc", 0x0BC, 0x0BD, LDO_300),
PLDO("8038_l9", "8038_l9_pc", 0x0BE, 0x0BF, LDO_300),
PLDO("8038_l10", "8038_l10_pc", 0x0C0, 0x0C1, LDO_600),
PLDO("8038_l11", "8038_l11_pc", 0x0C2, 0x0C3, LDO_600),
NLDO("8038_l12", "8038_l12_pc", 0x0C4, 0x0C5, LDO_300),
PLDO("8038_l14", "8038_l14_pc", 0x0C8, 0x0C9, LDO_50),
PLDO("8038_l15", "8038_l15_pc", 0x0CA, 0x0CB, LDO_150),
NLDO1200("8038_l16", 0x0CC, 0x0CD, LDO_1200),
PLDO("8038_l17", "8038_l17_pc", 0x0CE, 0x0CF, LDO_150),
PLDO("8038_l18", "8038_l18_pc", 0x0D0, 0x0D1, LDO_50),
NLDO1200("8038_l19", 0x0D2, 0x0D3, LDO_1200),
NLDO1200("8038_l20", 0x0D4, 0x0D5, LDO_1200),
PLDO("8038_l21", "8038_l21_pc", 0x0D6, 0x0D7, LDO_150),
PLDO("8038_l22", "8038_l22_pc", 0x0D8, 0x0D9, LDO_50),
PLDO("8038_l23", "8038_l23_pc", 0x0DA, 0x0DB, LDO_50),
NLDO1200("8038_l24", 0x0DC, 0x0DD, LDO_1200),
NLDO("8038_l26", "8038_l26_pc", 0x0E0, 0x0E1, LDO_150),
NLDO1200("8038_l27", 0x0E2, 0x0E3, LDO_1200),
/* name pc_name ctrl test2 clk sleep hpm_min */
SMPS("8038_s1", "8038_s1_pc", 0x1E0, 0x1E5, 0x009, 0x1E2, SMPS_1500),
SMPS("8038_s2", "8038_s2_pc", 0x1D8, 0x1DD, 0x00A, 0x1DA, SMPS_1500),
SMPS("8038_s3", "8038_s3_pc", 0x1D0, 0x1D5, 0x00B, 0x1D2, SMPS_1500),
SMPS("8038_s4", "8038_s4_pc", 0x1E8, 0x1ED, 0x00C, 0x1EA, SMPS_1500),
/* name ctrl fts_cnfg1 pfm pwr_cnfg hpm_min */
FTSMPS("8038_s5", 0x025, 0x02E, 0x026, 0x032, SMPS_2000),
FTSMPS("8038_s6", 0x036, 0x03F, 0x037, 0x043, SMPS_2000),
/* name pc_name ctrl test */
VS("8038_lvs1", "8038_lvs1_pc", 0x060, 0x061),
VS("8038_lvs2", "8038_lvs2_pc", 0x062, 0x063),
};
#define MAX_NAME_COMPARISON_LEN 32
static int __devinit match_regulator(
struct pm8xxx_regulator_core_platform_data *core_data, const char *name)
{
int found = 0;
int i;
for (i = 0; i < ARRAY_SIZE(regulator_data); i++) {
if (regulator_data[i].rdesc.name
&& strncmp(regulator_data[i].rdesc.name, name,
MAX_NAME_COMPARISON_LEN) == 0) {
core_data->is_pin_controlled = false;
core_data->vreg = &regulator_data[i];
found = 1;
break;
} else if (regulator_data[i].rdesc_pc.name
&& strncmp(regulator_data[i].rdesc_pc.name, name,
MAX_NAME_COMPARISON_LEN) == 0) {
core_data->is_pin_controlled = true;
core_data->vreg = &regulator_data[i];
found = 1;
break;
}
}
if (!found)
pr_err("could not find a match for regulator: %s\n", name);
return found;
}
static int __devinit
pm8038_add_regulators(const struct pm8038_platform_data *pdata,
struct pm8038 *pmic, int irq_base)
{
int ret = 0;
struct mfd_cell *mfd_regulators;
struct pm8xxx_regulator_core_platform_data *cdata;
int i;
/* Add one device for each regulator used by the board. */
mfd_regulators = kzalloc(sizeof(struct mfd_cell)
* (pdata->num_regulators), GFP_KERNEL);
if (!mfd_regulators) {
pr_err("Cannot allocate %d bytes for pm8038 regulator "
"mfd cells\n", sizeof(struct mfd_cell)
* (pdata->num_regulators));
return -ENOMEM;
}
cdata = kzalloc(sizeof(struct pm8xxx_regulator_core_platform_data)
* pdata->num_regulators, GFP_KERNEL);
if (!cdata) {
pr_err("Cannot allocate %d bytes for pm8038 regulator "
"core data\n", pdata->num_regulators
* sizeof(struct pm8xxx_regulator_core_platform_data));
kfree(mfd_regulators);
return -ENOMEM;
}
for (i = 0; i < ARRAY_SIZE(regulator_data); i++)
mutex_init(&regulator_data[i].pc_lock);
for (i = 0; i < pdata->num_regulators; i++) {
if (!pdata->regulator_pdatas[i].init_data.constraints.name) {
pr_err("name missing for regulator %d\n", i);
ret = -EINVAL;
goto bail;
}
if (!match_regulator(&cdata[i],
pdata->regulator_pdatas[i].init_data.constraints.name)) {
ret = -ENODEV;
goto bail;
}
cdata[i].pdata = &(pdata->regulator_pdatas[i]);
mfd_regulators[i].name = PM8XXX_REGULATOR_DEV_NAME;
mfd_regulators[i].id = cdata[i].pdata->id;
mfd_regulators[i].platform_data = &cdata[i];
mfd_regulators[i].pdata_size =
sizeof(struct pm8xxx_regulator_core_platform_data);
}
ret = mfd_add_devices(pmic->dev, 0, mfd_regulators,
pdata->num_regulators, NULL, irq_base);
if (ret)
goto bail;
pmic->mfd_regulators = mfd_regulators;
pmic->regulator_cdata = cdata;
return ret;
bail:
for (i = 0; i < ARRAY_SIZE(regulator_data); i++)
mutex_destroy(&regulator_data[i].pc_lock);
kfree(mfd_regulators);
kfree(cdata);
return ret;
}
static int __devinit
pm8038_add_subdevices(const struct pm8038_platform_data *pdata,
struct pm8038 *pmic)
{
int ret = 0, irq_base = 0;
struct pm_irq_chip *irq_chip;
if (pdata->irq_pdata) {
pdata->irq_pdata->irq_cdata.nirqs = PM8038_NR_IRQS;
pdata->irq_pdata->irq_cdata.base_addr = REG_IRQ_BASE;
irq_base = pdata->irq_pdata->irq_base;
irq_chip = pm8xxx_irq_init(pmic->dev, pdata->irq_pdata);
if (IS_ERR(irq_chip)) {
pr_err("Failed to init interrupts ret=%ld\n",
PTR_ERR(irq_chip));
return PTR_ERR(irq_chip);
}
pmic->irq_chip = irq_chip;
}
if (pdata->gpio_pdata) {
pdata->gpio_pdata->gpio_cdata.ngpios = PM8038_NR_GPIOS;
gpio_cell.platform_data = pdata->gpio_pdata;
gpio_cell.pdata_size = sizeof(struct pm8xxx_gpio_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &gpio_cell, 1,
NULL, irq_base);
if (ret) {
pr_err("Failed to add gpio subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->mpp_pdata) {
pdata->mpp_pdata->core_data.nmpps = PM8038_NR_MPPS;
pdata->mpp_pdata->core_data.base_addr = REG_MPP_BASE;
mpp_cell.platform_data = pdata->mpp_pdata;
mpp_cell.pdata_size = sizeof(struct pm8xxx_mpp_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &mpp_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add mpp subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->rtc_pdata) {
rtc_cell.platform_data = pdata->rtc_pdata;
rtc_cell.pdata_size = sizeof(struct pm8xxx_rtc_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &rtc_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add rtc subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->pwrkey_pdata) {
pwrkey_cell.platform_data = pdata->pwrkey_pdata;
pwrkey_cell.pdata_size =
sizeof(struct pm8xxx_pwrkey_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &pwrkey_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add pwrkey subdevice ret=%d\n", ret);
goto bail;
}
}
ret = mfd_add_devices(pmic->dev, 0, &pwm_cell, 1, NULL, 0);
if (ret) {
pr_err("Failed to add pwm subdevice ret=%d\n", ret);
goto bail;
}
if (pdata->misc_pdata) {
misc_cell.platform_data = pdata->misc_pdata;
misc_cell.pdata_size = sizeof(struct pm8xxx_misc_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &misc_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add misc subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->leds_pdata) {
leds_cell.platform_data = pdata->leds_pdata;
leds_cell.pdata_size = sizeof(struct pm8xxx_led_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &leds_cell, 1, NULL, 0);
if (ret) {
pr_err("Failed to add leds subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->vibrator_pdata) {
vibrator_cell.platform_data = pdata->vibrator_pdata;
vibrator_cell.pdata_size =
sizeof(struct pm8xxx_vibrator_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &vibrator_cell, 1, NULL, 0);
if (ret) {
pr_err("Failed to add vibrator ret=%d\n", ret);
goto bail;
}
}
if (pdata->spk_pdata) {
spk_cell.platform_data = pdata->spk_pdata;
spk_cell.pdata_size = sizeof(struct pm8xxx_spk_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &spk_cell, 1, NULL, 0);
if (ret) {
pr_err("Failed to add spk subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->num_regulators > 0 && pdata->regulator_pdatas) {
ret = pm8038_add_regulators(pdata, pmic, irq_base);
if (ret) {
pr_err("Failed to add regulator subdevices ret=%d\n",
ret);
goto bail;
}
}
ret = mfd_add_devices(pmic->dev, 0, &debugfs_cell, 1, NULL, irq_base);
if (ret) {
pr_err("Failed to add debugfs subdevice ret=%d\n", ret);
goto bail;
}
if (pdata->adc_pdata) {
adc_cell.platform_data = pdata->adc_pdata;
adc_cell.pdata_size =
sizeof(struct pm8xxx_adc_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &adc_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add adc subdevices ret=%d\n",
ret);
}
}
if (pdata->charger_pdata) {
pdata->charger_pdata->charger_cdata.vbat_channel = CHANNEL_VBAT;
pdata->charger_pdata->charger_cdata.batt_temp_channel
= CHANNEL_BATT_THERM;
pdata->charger_pdata->charger_cdata.batt_id_channel
= CHANNEL_BATT_ID;
charger_cell.platform_data = pdata->charger_pdata;
charger_cell.pdata_size =
sizeof(struct pm8921_charger_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &charger_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add charger subdevice ret=%d\n", ret);
goto bail;
}
}
if (pdata->bms_pdata) {
pdata->bms_pdata->bms_cdata.batt_temp_channel
= CHANNEL_BATT_THERM;
pdata->bms_pdata->bms_cdata.vbat_channel = CHANNEL_VBAT;
pdata->bms_pdata->bms_cdata.ref625mv_channel = CHANNEL_625MV;
pdata->bms_pdata->bms_cdata.ref1p25v_channel = CHANNEL_125V;
pdata->bms_pdata->bms_cdata.batt_id_channel = CHANNEL_BATT_ID;
bms_cell.platform_data = pdata->bms_pdata;
bms_cell.pdata_size = sizeof(struct pm8921_bms_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &bms_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add bms subdevice ret=%d\n", ret);
goto bail;
}
}
ret = mfd_add_devices(pmic->dev, 0, &thermal_alarm_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add thermal alarm subdevice ret=%d\n", ret);
goto bail;
}
ret = mfd_add_devices(pmic->dev, 0, &batt_alarm_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add battery alarm subdevice ret=%d\n", ret);
goto bail;
}
if (pdata->ccadc_pdata) {
pdata->ccadc_pdata->ccadc_cdata.batt_temp_channel
= CHANNEL_BATT_THERM;
ccadc_cell.platform_data = pdata->ccadc_pdata;
ccadc_cell.pdata_size =
sizeof(struct pm8xxx_ccadc_platform_data);
ret = mfd_add_devices(pmic->dev, 0, &ccadc_cell, 1, NULL,
irq_base);
if (ret) {
pr_err("Failed to add ccadc subdevice ret=%d\n", ret);
goto bail;
}
}
return 0;
bail:
if (pmic->irq_chip) {
pm8xxx_irq_exit(pmic->irq_chip);
pmic->irq_chip = NULL;
}
return ret;
}
static const char * const pm8038_rev_names[] = {
[PM8XXX_REVISION_8038_TEST] = "test",
[PM8XXX_REVISION_8038_1p0] = "1.0",
[PM8XXX_REVISION_8038_2p0] = "2.0",
[PM8XXX_REVISION_8038_2p1] = "2.1",
};
static int __devinit pm8038_probe(struct platform_device *pdev)
{
const struct pm8038_platform_data *pdata = pdev->dev.platform_data;
const char *revision_name = "unknown";
struct pm8038 *pmic;
enum pm8xxx_version version;
int revision;
int rc;
u8 val;
if (!pdata) {
pr_err("missing platform data\n");
return -EINVAL;
}
pmic = kzalloc(sizeof(struct pm8038), GFP_KERNEL);
if (!pmic) {
pr_err("Cannot alloc pm8038 struct\n");
return -ENOMEM;
}
/* Read PMIC chip revision */
rc = msm_ssbi_read(pdev->dev.parent, REG_HWREV, &val, sizeof(val));
if (rc) {
pr_err("Failed to read hw rev reg %d:rc=%d\n", REG_HWREV, rc);
goto err_read_rev;
}
pr_info("PMIC revision 1: PM8038 rev %02X\n", val);
pmic->rev_registers = val;
/* Read PMIC chip revision 2 */
rc = msm_ssbi_read(pdev->dev.parent, REG_HWREV_2, &val, sizeof(val));
if (rc) {
pr_err("Failed to read hw rev 2 reg %d:rc=%d\n",
REG_HWREV_2, rc);
goto err_read_rev;
}
pr_info("PMIC revision 2: PM8038 rev %02X\n", val);
pmic->rev_registers |= val << BITS_PER_BYTE;
pmic->dev = &pdev->dev;
pm8038_drvdata.pm_chip_data = pmic;
platform_set_drvdata(pdev, &pm8038_drvdata);
/* Print out human readable version and revision names. */
version = pm8xxx_get_version(pmic->dev);
if (version == PM8XXX_VERSION_8038) {
revision = pm8xxx_get_revision(pmic->dev);
if (revision >= 0 && revision < ARRAY_SIZE(pm8038_rev_names))
revision_name = pm8038_rev_names[revision];
pr_info("PMIC version: PM8038 ver %s\n", revision_name);
} else {
WARN_ON(version != PM8XXX_VERSION_8038);
}
/* Log human readable restart reason */
rc = msm_ssbi_read(pdev->dev.parent, REG_PM8038_PON_CNTRL_3, &val, 1);
if (rc) {
pr_err("Cannot read restart reason rc=%d\n", rc);
goto err_read_rev;
}
val &= PM8XXX_RESTART_REASON_MASK;
pr_info("PMIC Restart Reason: %s\n", pm8xxx_restart_reason_str[val]);
pmic->restart_reason = val;
rc = pm8038_add_subdevices(pdata, pmic);
if (rc) {
pr_err("Cannot add subdevices rc=%d\n", rc);
goto err;
}
return 0;
err:
mfd_remove_devices(pmic->dev);
platform_set_drvdata(pdev, NULL);
kfree(pmic->mfd_regulators);
kfree(pmic->regulator_cdata);
err_read_rev:
kfree(pmic);
return rc;
}
static int __devexit pm8038_remove(struct platform_device *pdev)
{
struct pm8xxx_drvdata *drvdata;
struct pm8038 *pmic = NULL;
int i;
drvdata = platform_get_drvdata(pdev);
if (drvdata)
pmic = drvdata->pm_chip_data;
if (pmic) {
if (pmic->dev)
mfd_remove_devices(pmic->dev);
if (pmic->irq_chip) {
pm8xxx_irq_exit(pmic->irq_chip);
pmic->irq_chip = NULL;
}
if (pmic->mfd_regulators) {
for (i = 0; i < ARRAY_SIZE(regulator_data); i++)
mutex_destroy(&regulator_data[i].pc_lock);
}
kfree(pmic->mfd_regulators);
kfree(pmic->regulator_cdata);
kfree(pmic);
}
platform_set_drvdata(pdev, NULL);
return 0;
}
static struct platform_driver pm8038_driver = {
.probe = pm8038_probe,
.remove = __devexit_p(pm8038_remove),
.driver = {
.name = PM8038_CORE_DEV_NAME,
.owner = THIS_MODULE,
},
};
static int __init pm8038_init(void)
{
return platform_driver_register(&pm8038_driver);
}
postcore_initcall(pm8038_init);
static void __exit pm8038_exit(void)
{
platform_driver_unregister(&pm8038_driver);
}
module_exit(pm8038_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("PMIC 8038 core driver");
MODULE_VERSION("1.0");
MODULE_ALIAS("platform:pm8038-core");
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