/* * 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 #include #include #include #include #include #include #include #include #include #include #include #define REG_HWREV 0x002 /* PMIC4 revision */ #define REG_HWREV_2 0x0E8 /* PMIC4 revision 2 */ #define REG_MPP_BASE 0x050 #define REG_IRQ_BASE 0x1BB #define REG_TEMP_ALARM_CTRL 0x1B #define REG_TEMP_ALARM_PWM 0x9B #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 PM8921_VERSION_MASK 0xFFF0 #define PM8921_VERSION_VALUE 0x06F0 #define PM8922_VERSION_VALUE 0x0AF0 #define PM8917_VERSION_VALUE 0x0CF0 #define PM8921_REVISION_MASK 0x000F #define REG_PM8921_PON_CNTRL_3 0x01D #define PM8921_RESTART_REASON_MASK 0x07 #define SINGLE_IRQ_RESOURCE(_name, _irq) \ { \ .name = _name, \ .start = _irq, \ .end = _irq, \ .flags = IORESOURCE_IRQ, \ } struct pm8921 { 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 pm8921_readb(const struct device *dev, u16 addr, u8 *val) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return msm_ssbi_read(pmic->dev->parent, addr, val, 1); } static int pm8921_writeb(const struct device *dev, u16 addr, u8 val) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return msm_ssbi_write(pmic->dev->parent, addr, &val, 1); } static int pm8921_read_buf(const struct device *dev, u16 addr, u8 *buf, int cnt) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return msm_ssbi_read(pmic->dev->parent, addr, buf, cnt); } static int pm8921_write_buf(const struct device *dev, u16 addr, u8 *buf, int cnt) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return msm_ssbi_write(pmic->dev->parent, addr, buf, cnt); } static int pm8921_read_irq_stat(const struct device *dev, int irq) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return pm8xxx_get_irq_stat(pmic->irq_chip, irq); } static enum pm8xxx_version pm8921_get_version(const struct device *dev) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; enum pm8xxx_version version = -ENODEV; if ((pmic->rev_registers & PM8921_VERSION_MASK) == PM8921_VERSION_VALUE) version = PM8XXX_VERSION_8921; else if ((pmic->rev_registers & PM8921_VERSION_MASK) == PM8922_VERSION_VALUE) version = PM8XXX_VERSION_8922; else if ((pmic->rev_registers & PM8921_VERSION_MASK) == PM8917_VERSION_VALUE) version = PM8XXX_VERSION_8917; return version; } static int pm8921_get_revision(const struct device *dev) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return pmic->rev_registers & PM8921_REVISION_MASK; } static u8 pm8921_restart_reason(const struct device *dev) { const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; return pmic->restart_reason; } static struct pm8xxx_drvdata pm8921_drvdata = { .pmic_readb = pm8921_readb, .pmic_writeb = pm8921_writeb, .pmic_read_buf = pm8921_read_buf, .pmic_write_buf = pm8921_write_buf, .pmic_read_irq_stat = pm8921_read_irq_stat, .pmic_get_version = pm8921_get_version, .pmic_get_revision = pm8921_get_revision, .pmic_restart_reason = pm8921_restart_reason, }; static struct resource gpio_cell_resources[] = { [0] = { .start = PM8921_IRQ_BLOCK_BIT(PM8921_GPIO_BLOCK_START, 0), .end = PM8921_IRQ_BLOCK_BIT(PM8921_GPIO_BLOCK_START, 0) + PM8921_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, PM8921_ADC_EOC_USR_IRQ), SINGLE_IRQ_RESOURCE(NULL, PM8921_ADC_BATT_TEMP_WARM_IRQ), SINGLE_IRQ_RESOURCE(NULL, PM8921_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 struct resource mpp_cell_resources[] = { { .start = PM8921_IRQ_BLOCK_BIT(PM8921_MPP_BLOCK_START, 0), .end = PM8921_IRQ_BLOCK_BIT(PM8921_MPP_BLOCK_START, 0) + PM8921_NR_MPPS - 1, .flags = IORESOURCE_IRQ, }, }; static struct mfd_cell mpp_cell __devinitdata = { .name = PM8XXX_MPP_DEV_NAME, .id = 0, .resources = mpp_cell_resources, .num_resources = ARRAY_SIZE(mpp_cell_resources), }; static const struct resource rtc_cell_resources[] __devinitconst = { [0] = SINGLE_IRQ_RESOURCE(NULL, PM8921_RTC_ALARM_IRQ), [1] = { .name = "pmic_rtc_base", .start = PM8921_RTC_BASE, .end = PM8921_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, PM8921_PWRKEY_REL_IRQ), SINGLE_IRQ_RESOURCE(NULL, PM8921_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 const struct resource resources_keypad[] = { SINGLE_IRQ_RESOURCE(NULL, PM8921_KEYPAD_IRQ), SINGLE_IRQ_RESOURCE(NULL, PM8921_KEYSTUCK_IRQ), }; static struct mfd_cell keypad_cell __devinitdata = { .name = PM8XXX_KEYPAD_DEV_NAME, .id = -1, .num_resources = ARRAY_SIZE(resources_keypad), .resources = resources_keypad, }; static struct mfd_cell debugfs_cell __devinitdata = { .name = "pm8xxx-debug", .id = 0, .platform_data = "pm8921-dbg", .pdata_size = sizeof("pm8921-dbg"), }; static struct mfd_cell pwm_cell __devinitdata = { .name = PM8XXX_PWM_DEV_NAME, .id = -1, }; 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 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 thermal_alarm_cell_resources[] __devinitconst = { SINGLE_IRQ_RESOURCE("pm8921_tempstat_irq", PM8921_TEMPSTAT_IRQ), SINGLE_IRQ_RESOURCE("pm8921_overtemp_irq", PM8921_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 = "pm8921_tz", .irq_name_temp_stat = "pm8921_tempstat_irq", .irq_name_over_temp = "pm8921_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", PM8921_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 */ NLDO("8921_l1", "8921_l1_pc", 0x0AE, 0x0AF, LDO_150), NLDO("8921_l2", "8921_l2_pc", 0x0B0, 0x0B1, LDO_150), PLDO("8921_l3", "8921_l3_pc", 0x0B2, 0x0B3, LDO_150), PLDO("8921_l4", "8921_l4_pc", 0x0B4, 0x0B5, LDO_50), PLDO("8921_l5", "8921_l5_pc", 0x0B6, 0x0B7, LDO_300), PLDO("8921_l6", "8921_l6_pc", 0x0B8, 0x0B9, LDO_600), PLDO("8921_l7", "8921_l7_pc", 0x0BA, 0x0BB, LDO_150), PLDO("8921_l8", "8921_l8_pc", 0x0BC, 0x0BD, LDO_300), PLDO("8921_l9", "8921_l9_pc", 0x0BE, 0x0BF, LDO_300), PLDO("8921_l10", "8921_l10_pc", 0x0C0, 0x0C1, LDO_600), PLDO("8921_l11", "8921_l11_pc", 0x0C2, 0x0C3, LDO_150), NLDO("8921_l12", "8921_l12_pc", 0x0C4, 0x0C5, LDO_150), PLDO("8921_l14", "8921_l14_pc", 0x0C8, 0x0C9, LDO_50), PLDO("8921_l15", "8921_l15_pc", 0x0CA, 0x0CB, LDO_150), PLDO("8921_l16", "8921_l16_pc", 0x0CC, 0x0CD, LDO_300), PLDO("8921_l17", "8921_l17_pc", 0x0CE, 0x0CF, LDO_150), NLDO("8921_l18", "8921_l18_pc", 0x0D0, 0x0D1, LDO_150), PLDO("8921_l21", "8921_l21_pc", 0x0D6, 0x0D7, LDO_150), PLDO("8921_l22", "8921_l22_pc", 0x0D8, 0x0D9, LDO_150), PLDO("8921_l23", "8921_l23_pc", 0x0DA, 0x0DB, LDO_150), NLDO1200("8921_l24", 0x0DC, 0x0DD, LDO_1200), NLDO1200("8921_l25", 0x0DE, 0x0DF, LDO_1200), NLDO1200("8921_l26", 0x0E0, 0x0E1, LDO_1200), NLDO1200("8921_l27", 0x0E2, 0x0E3, LDO_1200), NLDO1200("8921_l28", 0x0E4, 0x0E5, LDO_1200), PLDO("8921_l29", "8921_l29_pc", 0x0E6, 0x0E7, LDO_150), /* name pc_name ctrl test2 clk sleep hpm_min */ SMPS("8921_s1", "8921_s1_pc", 0x1D0, 0x1D5, 0x009, 0x1D2, SMPS_1500), SMPS("8921_s2", "8921_s2_pc", 0x1D8, 0x1DD, 0x00A, 0x1DA, SMPS_1500), SMPS("8921_s3", "8921_s3_pc", 0x1E0, 0x1E5, 0x00B, 0x1E2, SMPS_1500), SMPS("8921_s4", "8921_s4_pc", 0x1E8, 0x1ED, 0x011, 0x1EA, SMPS_1500), /* name ctrl fts_cnfg1 pfm pwr_cnfg hpm_min */ FTSMPS("8921_s5", 0x025, 0x02E, 0x026, 0x032, SMPS_2000), FTSMPS("8921_s6", 0x036, 0x03F, 0x037, 0x043, SMPS_2000), /* name pc_name ctrl test2 clk sleep hpm_min */ SMPS("8921_s7", "8921_s7_pc", 0x1F0, 0x1F5, 0x012, 0x1F2, SMPS_1500), SMPS("8921_s8", "8921_s8_pc", 0x1F8, 0x1FD, 0x013, 0x1FA, SMPS_1500), /* name pc_name ctrl test */ VS("8921_lvs1", "8921_lvs1_pc", 0x060, 0x061), VS300("8921_lvs2", 0x062, 0x063), VS("8921_lvs3", "8921_lvs3_pc", 0x064, 0x065), VS("8921_lvs4", "8921_lvs4_pc", 0x066, 0x067), VS("8921_lvs5", "8921_lvs5_pc", 0x068, 0x069), VS("8921_lvs6", "8921_lvs6_pc", 0x06A, 0x06B), VS("8921_lvs7", "8921_lvs7_pc", 0x06C, 0x06D), VS300("8921_usb_otg", 0x06E, 0x06F), VS300("8921_hdmi_mvs", 0x070, 0x071), /* name ctrl */ NCP("8921_ncp", 0x090), }; /* * PM8917 adds 6 LDOs and a boost regulator beyond those available on PM8921. * It also replaces SMPS 3 with FTSMPS 3. PM8917 does not have an NCP. */ static struct pm8xxx_vreg pm8917_regulator_data[] = { /* name pc_name ctrl test hpm_min */ PLDO("8917_l30", "8917_l30_pc", 0x0A3, 0x0A4, LDO_150), PLDO("8917_l31", "8917_l31_pc", 0x0A5, 0x0A6, LDO_150), PLDO("8917_l32", "8917_l32_pc", 0x0A7, 0x0A8, LDO_150), PLDO("8917_l33", "8917_l33_pc", 0x0C6, 0x0C7, LDO_150), PLDO("8917_l34", "8917_l34_pc", 0x0D2, 0x0D3, LDO_150), PLDO("8917_l35", "8917_l35_pc", 0x0D4, 0x0D5, LDO_300), PLDO("8917_l36", "8917_l36_pc", 0x0A9, 0x0AA, LDO_50), /* name ctrl */ BOOST("8917_boost", 0x04B), }; #define MAX_NAME_COMPARISON_LEN 32 static int __devinit match_regulator(enum pm8xxx_version version, 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 = ®ulator_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 = ®ulator_data[i]; found = 1; break; } } if (version == PM8XXX_VERSION_8917) { for (i = 0; i < ARRAY_SIZE(pm8917_regulator_data); i++) { if (pm8917_regulator_data[i].rdesc.name && strncmp(pm8917_regulator_data[i].rdesc.name, name, MAX_NAME_COMPARISON_LEN) == 0) { core_data->is_pin_controlled = false; core_data->vreg = &pm8917_regulator_data[i]; found = 1; break; } else if (pm8917_regulator_data[i].rdesc_pc.name && strncmp(pm8917_regulator_data[i].rdesc_pc.name, name, MAX_NAME_COMPARISON_LEN) == 0) { core_data->is_pin_controlled = true; core_data->vreg = &pm8917_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 pm8921_add_regulators(const struct pm8921_platform_data *pdata, struct pm8921 *pmic, int irq_base) { int ret = 0; struct mfd_cell *mfd_regulators; struct pm8xxx_regulator_core_platform_data *cdata; enum pm8xxx_version version; int i; version = pm8xxx_get_version(pmic->dev); /* 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 pm8921 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 pm8921 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(®ulator_data[i].pc_lock); for (i = 0; i < ARRAY_SIZE(pm8917_regulator_data); i++) mutex_init(&pm8917_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(version, &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(®ulator_data[i].pc_lock); for (i = 0; i < ARRAY_SIZE(pm8917_regulator_data); i++) mutex_destroy(&pm8917_regulator_data[i].pc_lock); kfree(mfd_regulators); kfree(cdata); return ret; } static int __devinit pm8921_add_subdevices(const struct pm8921_platform_data *pdata, struct pm8921 *pmic) { int ret = 0, irq_base = 0; struct pm_irq_chip *irq_chip; enum pm8xxx_version version; version = pm8xxx_get_version(pmic->dev); if (pdata->irq_pdata) { pdata->irq_pdata->irq_cdata.nirqs = PM8921_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) { if (version == PM8XXX_VERSION_8917) { gpio_cell_resources[0].end = gpio_cell_resources[0].end + PM8917_NR_GPIOS - PM8921_NR_GPIOS; pdata->gpio_pdata->gpio_cdata.ngpios = PM8917_NR_GPIOS; } else { pdata->gpio_pdata->gpio_cdata.ngpios = PM8921_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) { if (version == PM8XXX_VERSION_8917) { mpp_cell_resources[0].end = mpp_cell_resources[0].end + PM8917_NR_MPPS - PM8921_NR_MPPS; pdata->mpp_pdata->core_data.nmpps = PM8917_NR_MPPS; } else { pdata->mpp_pdata->core_data.nmpps = PM8921_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; } } if (pdata->keypad_pdata) { keypad_cell.platform_data = pdata->keypad_pdata; keypad_cell.pdata_size = sizeof(struct pm8xxx_keypad_platform_data); ret = mfd_add_devices(pmic->dev, 0, &keypad_cell, 1, NULL, irq_base); if (ret) { pr_err("Failed to add keypad subdevice ret=%d\n", ret); goto bail; } } 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->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 regulator subdevices ret=%d\n", ret); } } 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; } } if (pdata->num_regulators > 0 && pdata->regulator_pdatas) { ret = pm8921_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->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; } } 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 (version != PM8XXX_VERSION_8917) { if (pdata->pwm_pdata) { pwm_cell.platform_data = pdata->pwm_pdata; pwm_cell.pdata_size = sizeof(struct pm8xxx_pwm_platform_data); } 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->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->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 pm8921_rev_names[] = { [PM8XXX_REVISION_8921_TEST] = "test", [PM8XXX_REVISION_8921_1p0] = "1.0", [PM8XXX_REVISION_8921_1p1] = "1.1", [PM8XXX_REVISION_8921_2p0] = "2.0", [PM8XXX_REVISION_8921_3p0] = "3.0", [PM8XXX_REVISION_8921_3p1] = "3.1", }; static const char * const pm8922_rev_names[] = { [PM8XXX_REVISION_8922_TEST] = "test", [PM8XXX_REVISION_8922_1p0] = "1.0", [PM8XXX_REVISION_8922_1p1] = "1.1", [PM8XXX_REVISION_8922_2p0] = "2.0", }; static const char * const pm8917_rev_names[] = { [PM8XXX_REVISION_8917_TEST] = "test", [PM8XXX_REVISION_8917_1p0] = "1.0", }; static int __devinit pm8921_probe(struct platform_device *pdev) { const struct pm8921_platform_data *pdata = pdev->dev.platform_data; const char *revision_name = "unknown"; struct pm8921 *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 pm8921), GFP_KERNEL); if (!pmic) { pr_err("Cannot alloc pm8921 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: %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: %02X\n", val); pmic->rev_registers |= val << BITS_PER_BYTE; pmic->dev = &pdev->dev; pm8921_drvdata.pm_chip_data = pmic; platform_set_drvdata(pdev, &pm8921_drvdata); /* Print out human readable version and revision names. */ version = pm8xxx_get_version(pmic->dev); revision = pm8xxx_get_revision(pmic->dev); if (version == PM8XXX_VERSION_8921) { if (revision >= 0 && revision < ARRAY_SIZE(pm8921_rev_names)) revision_name = pm8921_rev_names[revision]; pr_info("PMIC version: PM8921 rev %s\n", revision_name); } else if (version == PM8XXX_VERSION_8922) { if (revision >= 0 && revision < ARRAY_SIZE(pm8922_rev_names)) revision_name = pm8922_rev_names[revision]; pr_info("PMIC version: PM8922 rev %s\n", revision_name); } else if (version == PM8XXX_VERSION_8917) { if (revision >= 0 && revision < ARRAY_SIZE(pm8917_rev_names)) revision_name = pm8917_rev_names[revision]; pr_info("PMIC version: PM8917 rev %s\n", revision_name); } else { WARN_ON(version != PM8XXX_VERSION_8921 && version != PM8XXX_VERSION_8922 && version != PM8XXX_VERSION_8917); } /* Log human readable restart reason */ rc = msm_ssbi_read(pdev->dev.parent, REG_PM8921_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 = pm8921_add_subdevices(pdata, pmic); if (rc) { pr_err("Cannot add subdevices rc=%d\n", rc); goto err; } /* gpio might not work if no irq device is found */ WARN_ON(pmic->irq_chip == NULL); 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 pm8921_remove(struct platform_device *pdev) { struct pm8xxx_drvdata *drvdata; struct pm8921 *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); if (pmic->mfd_regulators) { for (i = 0; i < ARRAY_SIZE(regulator_data); i++) mutex_destroy(®ulator_data[i].pc_lock); for (i = 0; i < ARRAY_SIZE(pm8917_regulator_data); i++) mutex_destroy( &pm8917_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 pm8921_driver = { .probe = pm8921_probe, .remove = __devexit_p(pm8921_remove), .driver = { .name = "pm8921-core", .owner = THIS_MODULE, }, }; static int __init pm8921_init(void) { return platform_driver_register(&pm8921_driver); } postcore_initcall(pm8921_init); static void __exit pm8921_exit(void) { platform_driver_unregister(&pm8921_driver); } module_exit(pm8921_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("PMIC 8921 core driver"); MODULE_VERSION("1.0"); MODULE_ALIAS("platform:pm8921-core");