Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2011, Code Aurora Forum. All rights reserved. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 and |
| 6 | * only version 2 as published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | */ |
| 13 | |
| 14 | #define pr_fmt(fmt) "%s: " fmt, __func__ |
| 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/platform_device.h> |
| 18 | #include <linux/slab.h> |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 19 | #include <linux/err.h> |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 20 | #include <linux/msm_ssbi.h> |
| 21 | #include <linux/mfd/core.h> |
| 22 | #include <linux/mfd/pm8xxx/pm8921.h> |
| 23 | #include <linux/mfd/pm8xxx/core.h> |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 24 | #include <linux/leds-pm8xxx.h> |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 25 | |
| 26 | #define REG_HWREV 0x002 /* PMIC4 revision */ |
| 27 | #define REG_HWREV_2 0x0E8 /* PMIC4 revision 2 */ |
| 28 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 29 | #define REG_MPP_BASE 0x050 |
| 30 | |
| 31 | #define REG_TEMP_ALARM_CTRL 0x1B |
| 32 | #define REG_TEMP_ALARM_PWM 0x9B |
| 33 | |
| 34 | #define REG_BATT_ALARM_THRESH 0x023 |
| 35 | #define REG_BATT_ALARM_CTRL1 0x024 |
| 36 | #define REG_BATT_ALARM_CTRL2 0x0AA |
| 37 | #define REG_BATT_ALARM_PWM_CTRL 0x0A3 |
| 38 | |
| 39 | #define PM8921_VERSION_MASK 0xFFF0 |
| 40 | #define PM8921_VERSION_VALUE 0x06F0 |
| 41 | #define PM8921_REVISION_MASK 0x000F |
| 42 | |
| 43 | #define SINGLE_IRQ_RESOURCE(_name, _irq) \ |
| 44 | { \ |
| 45 | .name = _name, \ |
| 46 | .start = _irq, \ |
| 47 | .end = _irq, \ |
| 48 | .flags = IORESOURCE_IRQ, \ |
| 49 | } |
| 50 | |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 51 | struct pm8921 { |
| 52 | struct device *dev; |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 53 | struct pm_irq_chip *irq_chip; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 54 | struct mfd_cell *mfd_regulators; |
| 55 | u32 rev_registers; |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 56 | }; |
| 57 | |
| 58 | static int pm8921_readb(const struct device *dev, u16 addr, u8 *val) |
| 59 | { |
| 60 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 61 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 62 | |
| 63 | return msm_ssbi_read(pmic->dev->parent, addr, val, 1); |
| 64 | } |
| 65 | |
| 66 | static int pm8921_writeb(const struct device *dev, u16 addr, u8 val) |
| 67 | { |
| 68 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 69 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 70 | |
| 71 | return msm_ssbi_write(pmic->dev->parent, addr, &val, 1); |
| 72 | } |
| 73 | |
| 74 | static int pm8921_read_buf(const struct device *dev, u16 addr, u8 *buf, |
| 75 | int cnt) |
| 76 | { |
| 77 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 78 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 79 | |
| 80 | return msm_ssbi_read(pmic->dev->parent, addr, buf, cnt); |
| 81 | } |
| 82 | |
| 83 | static int pm8921_write_buf(const struct device *dev, u16 addr, u8 *buf, |
| 84 | int cnt) |
| 85 | { |
| 86 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 87 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 88 | |
| 89 | return msm_ssbi_write(pmic->dev->parent, addr, buf, cnt); |
| 90 | } |
| 91 | |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 92 | static int pm8921_read_irq_stat(const struct device *dev, int irq) |
| 93 | { |
| 94 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 95 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 96 | |
| 97 | return pm8xxx_get_irq_stat(pmic->irq_chip, irq); |
| 98 | } |
| 99 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 100 | static enum pm8xxx_version pm8921_get_version(const struct device *dev) |
| 101 | { |
| 102 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 103 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 104 | enum pm8xxx_version version = -ENODEV; |
| 105 | |
| 106 | if ((pmic->rev_registers & PM8921_VERSION_MASK) == PM8921_VERSION_VALUE) |
| 107 | version = PM8XXX_VERSION_8921; |
| 108 | |
| 109 | return version; |
| 110 | } |
| 111 | |
| 112 | static int pm8921_get_revision(const struct device *dev) |
| 113 | { |
| 114 | const struct pm8xxx_drvdata *pm8921_drvdata = dev_get_drvdata(dev); |
| 115 | const struct pm8921 *pmic = pm8921_drvdata->pm_chip_data; |
| 116 | |
| 117 | return pmic->rev_registers & PM8921_REVISION_MASK; |
| 118 | } |
| 119 | |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 120 | static struct pm8xxx_drvdata pm8921_drvdata = { |
| 121 | .pmic_readb = pm8921_readb, |
| 122 | .pmic_writeb = pm8921_writeb, |
| 123 | .pmic_read_buf = pm8921_read_buf, |
| 124 | .pmic_write_buf = pm8921_write_buf, |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 125 | .pmic_read_irq_stat = pm8921_read_irq_stat, |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 126 | .pmic_get_version = pm8921_get_version, |
| 127 | .pmic_get_revision = pm8921_get_revision, |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 128 | }; |
| 129 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 130 | static const struct resource gpio_cell_resources[] __devinitconst = { |
| 131 | [0] = { |
| 132 | .start = PM8921_IRQ_BLOCK_BIT(PM8921_GPIO_BLOCK_START, 0), |
| 133 | .end = PM8921_IRQ_BLOCK_BIT(PM8921_GPIO_BLOCK_START, 0) |
| 134 | + PM8921_NR_GPIOS - 1, |
| 135 | .flags = IORESOURCE_IRQ, |
| 136 | }, |
| 137 | }; |
| 138 | |
| 139 | static struct mfd_cell gpio_cell __devinitdata = { |
| 140 | .name = PM8XXX_GPIO_DEV_NAME, |
| 141 | .id = -1, |
| 142 | .resources = gpio_cell_resources, |
| 143 | .num_resources = ARRAY_SIZE(gpio_cell_resources), |
| 144 | }; |
| 145 | |
| 146 | static const struct resource adc_cell_resources[] __devinitconst = { |
| 147 | SINGLE_IRQ_RESOURCE(NULL, PM8921_ADC_EOC_USR_IRQ), |
| 148 | SINGLE_IRQ_RESOURCE(NULL, PM8921_ADC_BATT_TEMP_WARM_IRQ), |
| 149 | SINGLE_IRQ_RESOURCE(NULL, PM8921_ADC_BATT_TEMP_COLD_IRQ), |
| 150 | }; |
| 151 | |
| 152 | static struct mfd_cell adc_cell __devinitdata = { |
| 153 | .name = PM8921_ADC_DEV_NAME, |
| 154 | .id = -1, |
| 155 | .resources = adc_cell_resources, |
| 156 | .num_resources = ARRAY_SIZE(adc_cell_resources), |
| 157 | }; |
| 158 | |
| 159 | static const struct resource mpp_cell_resources[] __devinitconst = { |
| 160 | { |
| 161 | .start = PM8921_IRQ_BLOCK_BIT(PM8921_MPP_BLOCK_START, 0), |
| 162 | .end = PM8921_IRQ_BLOCK_BIT(PM8921_MPP_BLOCK_START, 0) |
| 163 | + PM8921_NR_MPPS - 1, |
| 164 | .flags = IORESOURCE_IRQ, |
| 165 | }, |
| 166 | }; |
| 167 | |
| 168 | static struct mfd_cell mpp_cell __devinitdata = { |
| 169 | .name = PM8XXX_MPP_DEV_NAME, |
| 170 | .id = -1, |
| 171 | .resources = mpp_cell_resources, |
| 172 | .num_resources = ARRAY_SIZE(mpp_cell_resources), |
| 173 | }; |
| 174 | |
| 175 | static const struct resource rtc_cell_resources[] __devinitconst = { |
| 176 | [0] = SINGLE_IRQ_RESOURCE(NULL, PM8921_RTC_ALARM_IRQ), |
| 177 | [1] = { |
| 178 | .name = "pmic_rtc_base", |
| 179 | .start = PM8921_RTC_BASE, |
| 180 | .end = PM8921_RTC_BASE, |
| 181 | .flags = IORESOURCE_IO, |
| 182 | }, |
| 183 | }; |
| 184 | |
| 185 | static struct mfd_cell rtc_cell __devinitdata = { |
| 186 | .name = PM8XXX_RTC_DEV_NAME, |
| 187 | .id = -1, |
| 188 | .resources = rtc_cell_resources, |
| 189 | .num_resources = ARRAY_SIZE(rtc_cell_resources), |
| 190 | }; |
| 191 | |
| 192 | static const struct resource resources_pwrkey[] __devinitconst = { |
| 193 | SINGLE_IRQ_RESOURCE(NULL, PM8921_PWRKEY_REL_IRQ), |
| 194 | SINGLE_IRQ_RESOURCE(NULL, PM8921_PWRKEY_PRESS_IRQ), |
| 195 | }; |
| 196 | |
| 197 | static struct mfd_cell pwrkey_cell __devinitdata = { |
| 198 | .name = PM8XXX_PWRKEY_DEV_NAME, |
| 199 | .id = -1, |
| 200 | .num_resources = ARRAY_SIZE(resources_pwrkey), |
| 201 | .resources = resources_pwrkey, |
| 202 | }; |
| 203 | |
| 204 | static const struct resource resources_keypad[] = { |
| 205 | SINGLE_IRQ_RESOURCE(NULL, PM8921_KEYPAD_IRQ), |
| 206 | SINGLE_IRQ_RESOURCE(NULL, PM8921_KEYSTUCK_IRQ), |
| 207 | }; |
| 208 | |
| 209 | static struct mfd_cell keypad_cell __devinitdata = { |
| 210 | .name = PM8XXX_KEYPAD_DEV_NAME, |
| 211 | .id = -1, |
| 212 | .num_resources = ARRAY_SIZE(resources_keypad), |
| 213 | .resources = resources_keypad, |
| 214 | }; |
| 215 | |
| 216 | static struct mfd_cell debugfs_cell __devinitdata = { |
| 217 | .name = "pm8xxx-debug", |
| 218 | .id = -1, |
| 219 | .platform_data = "pm8921-dbg", |
| 220 | .pdata_size = sizeof("pm8921-dbg"), |
| 221 | }; |
| 222 | |
| 223 | static struct mfd_cell pwm_cell __devinitdata = { |
| 224 | .name = PM8XXX_PWM_DEV_NAME, |
| 225 | .id = -1, |
| 226 | }; |
| 227 | |
| 228 | static const struct resource charger_cell_resources[] __devinitconst = { |
| 229 | SINGLE_IRQ_RESOURCE("USBIN_VALID_IRQ", PM8921_USBIN_VALID_IRQ), |
| 230 | SINGLE_IRQ_RESOURCE("USBIN_OV_IRQ", PM8921_USBIN_OV_IRQ), |
| 231 | SINGLE_IRQ_RESOURCE("BATT_INSERTED_IRQ", PM8921_BATT_INSERTED_IRQ), |
| 232 | SINGLE_IRQ_RESOURCE("VBATDET_LOW_IRQ", PM8921_VBATDET_LOW_IRQ), |
| 233 | SINGLE_IRQ_RESOURCE("USBIN_UV_IRQ", PM8921_USBIN_UV_IRQ), |
| 234 | SINGLE_IRQ_RESOURCE("VBAT_OV_IRQ", PM8921_VBAT_OV_IRQ), |
| 235 | SINGLE_IRQ_RESOURCE("CHGWDOG_IRQ", PM8921_CHGWDOG_IRQ), |
| 236 | SINGLE_IRQ_RESOURCE("VCP_IRQ", PM8921_VCP_IRQ), |
| 237 | SINGLE_IRQ_RESOURCE("ATCDONE_IRQ", PM8921_ATCDONE_IRQ), |
| 238 | SINGLE_IRQ_RESOURCE("ATCFAIL_IRQ", PM8921_ATCFAIL_IRQ), |
| 239 | SINGLE_IRQ_RESOURCE("CHGDONE_IRQ", PM8921_CHGDONE_IRQ), |
| 240 | SINGLE_IRQ_RESOURCE("CHGFAIL_IRQ", PM8921_CHGFAIL_IRQ), |
| 241 | SINGLE_IRQ_RESOURCE("CHGSTATE_IRQ", PM8921_CHGSTATE_IRQ), |
| 242 | SINGLE_IRQ_RESOURCE("LOOP_CHANGE_IRQ", PM8921_LOOP_CHANGE_IRQ), |
| 243 | SINGLE_IRQ_RESOURCE("FASTCHG_IRQ", PM8921_FASTCHG_IRQ), |
| 244 | SINGLE_IRQ_RESOURCE("TRKLCHG_IRQ", PM8921_TRKLCHG_IRQ), |
| 245 | SINGLE_IRQ_RESOURCE("BATT_REMOVED_IRQ", PM8921_BATT_REMOVED_IRQ), |
| 246 | SINGLE_IRQ_RESOURCE("BATTTEMP_HOT_IRQ", PM8921_BATTTEMP_HOT_IRQ), |
| 247 | SINGLE_IRQ_RESOURCE("CHGHOT_IRQ", PM8921_CHGHOT_IRQ), |
| 248 | SINGLE_IRQ_RESOURCE("BATTTEMP_COLD_IRQ", PM8921_BATTTEMP_COLD_IRQ), |
| 249 | SINGLE_IRQ_RESOURCE("CHG_GONE_IRQ", PM8921_CHG_GONE_IRQ), |
| 250 | SINGLE_IRQ_RESOURCE("BAT_TEMP_OK_IRQ", PM8921_BAT_TEMP_OK_IRQ), |
| 251 | SINGLE_IRQ_RESOURCE("COARSE_DET_LOW_IRQ", PM8921_COARSE_DET_LOW_IRQ), |
| 252 | SINGLE_IRQ_RESOURCE("VDD_LOOP_IRQ", PM8921_VDD_LOOP_IRQ), |
| 253 | SINGLE_IRQ_RESOURCE("VREG_OV_IRQ", PM8921_VREG_OV_IRQ), |
| 254 | SINGLE_IRQ_RESOURCE("VBATDET_IRQ", PM8921_VBATDET_IRQ), |
| 255 | SINGLE_IRQ_RESOURCE("BATFET_IRQ", PM8921_BATFET_IRQ), |
| 256 | SINGLE_IRQ_RESOURCE("PSI_IRQ", PM8921_PSI_IRQ), |
| 257 | SINGLE_IRQ_RESOURCE("DCIN_VALID_IRQ", PM8921_DCIN_VALID_IRQ), |
| 258 | SINGLE_IRQ_RESOURCE("DCIN_OV_IRQ", PM8921_DCIN_OV_IRQ), |
| 259 | SINGLE_IRQ_RESOURCE("DCIN_UV_IRQ", PM8921_DCIN_UV_IRQ), |
| 260 | }; |
| 261 | |
| 262 | static const struct resource bms_cell_resources[] __devinitconst = { |
| 263 | SINGLE_IRQ_RESOURCE("PM8921_BMS_SBI_WRITE_OK", PM8921_BMS_SBI_WRITE_OK), |
| 264 | SINGLE_IRQ_RESOURCE("PM8921_BMS_CC_THR", PM8921_BMS_CC_THR), |
| 265 | SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_THR", PM8921_BMS_VSENSE_THR), |
| 266 | SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_FOR_R", PM8921_BMS_VSENSE_FOR_R), |
| 267 | SINGLE_IRQ_RESOURCE("PM8921_BMS_OCV_FOR_R", PM8921_BMS_OCV_FOR_R), |
| 268 | SINGLE_IRQ_RESOURCE("PM8921_BMS_GOOD_OCV", PM8921_BMS_GOOD_OCV), |
| 269 | SINGLE_IRQ_RESOURCE("PM8921_BMS_VSENSE_AVG", PM8921_BMS_VSENSE_AVG), |
| 270 | }; |
| 271 | |
| 272 | static struct mfd_cell charger_cell __devinitdata = { |
| 273 | .name = PM8921_CHARGER_DEV_NAME, |
| 274 | .id = -1, |
| 275 | .resources = charger_cell_resources, |
| 276 | .num_resources = ARRAY_SIZE(charger_cell_resources), |
| 277 | }; |
| 278 | |
| 279 | static struct mfd_cell bms_cell __devinitdata = { |
| 280 | .name = PM8921_BMS_DEV_NAME, |
| 281 | .id = -1, |
| 282 | .resources = bms_cell_resources, |
| 283 | .num_resources = ARRAY_SIZE(bms_cell_resources), |
| 284 | }; |
| 285 | |
| 286 | static struct mfd_cell misc_cell __devinitdata = { |
| 287 | .name = PM8XXX_MISC_DEV_NAME, |
| 288 | .id = -1, |
| 289 | }; |
| 290 | |
| 291 | static struct mfd_cell leds_cell __devinitdata = { |
| 292 | .name = PM8XXX_LEDS_DEV_NAME, |
| 293 | .id = -1, |
| 294 | }; |
| 295 | |
| 296 | static const struct resource thermal_alarm_cell_resources[] __devinitconst = { |
| 297 | SINGLE_IRQ_RESOURCE("pm8921_tempstat_irq", PM8921_TEMPSTAT_IRQ), |
| 298 | SINGLE_IRQ_RESOURCE("pm8921_overtemp_irq", PM8921_OVERTEMP_IRQ), |
| 299 | }; |
| 300 | |
| 301 | static struct pm8xxx_tm_core_data thermal_alarm_cdata = { |
| 302 | .adc_channel = CHANNEL_DIE_TEMP, |
| 303 | .adc_type = PM8XXX_TM_ADC_PM8921_ADC, |
| 304 | .reg_addr_temp_alarm_ctrl = REG_TEMP_ALARM_CTRL, |
| 305 | .reg_addr_temp_alarm_pwm = REG_TEMP_ALARM_PWM, |
| 306 | .tm_name = "pm8921_tz", |
| 307 | .irq_name_temp_stat = "pm8921_tempstat_irq", |
| 308 | .irq_name_over_temp = "pm8921_overtemp_irq", |
| 309 | }; |
| 310 | |
| 311 | static struct mfd_cell thermal_alarm_cell __devinitdata = { |
| 312 | .name = PM8XXX_TM_DEV_NAME, |
| 313 | .id = -1, |
| 314 | .resources = thermal_alarm_cell_resources, |
| 315 | .num_resources = ARRAY_SIZE(thermal_alarm_cell_resources), |
| 316 | .platform_data = &thermal_alarm_cdata, |
| 317 | .pdata_size = sizeof(struct pm8xxx_tm_core_data), |
| 318 | }; |
| 319 | |
| 320 | static const struct resource batt_alarm_cell_resources[] __devinitconst = { |
| 321 | SINGLE_IRQ_RESOURCE("pm8921_batt_alarm_irq", PM8921_BATT_ALARM_IRQ), |
| 322 | }; |
| 323 | |
| 324 | static struct pm8xxx_batt_alarm_core_data batt_alarm_cdata = { |
| 325 | .irq_name = "pm8921_batt_alarm_irq", |
| 326 | .reg_addr_threshold = REG_BATT_ALARM_THRESH, |
| 327 | .reg_addr_ctrl1 = REG_BATT_ALARM_CTRL1, |
| 328 | .reg_addr_ctrl2 = REG_BATT_ALARM_CTRL2, |
| 329 | .reg_addr_pwm_ctrl = REG_BATT_ALARM_PWM_CTRL, |
| 330 | }; |
| 331 | |
| 332 | static struct mfd_cell batt_alarm_cell __devinitdata = { |
| 333 | .name = PM8XXX_BATT_ALARM_DEV_NAME, |
| 334 | .id = -1, |
| 335 | .resources = batt_alarm_cell_resources, |
| 336 | .num_resources = ARRAY_SIZE(batt_alarm_cell_resources), |
| 337 | .platform_data = &batt_alarm_cdata, |
| 338 | .pdata_size = sizeof(struct pm8xxx_batt_alarm_core_data), |
| 339 | }; |
| 340 | |
| 341 | static int __devinit |
| 342 | pm8921_add_subdevices(const struct pm8921_platform_data *pdata, |
| 343 | struct pm8921 *pmic) |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 344 | { |
| 345 | int ret = 0, irq_base = 0; |
| 346 | struct pm_irq_chip *irq_chip; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 347 | static struct mfd_cell *mfd_regulators; |
| 348 | int i; |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 349 | |
| 350 | if (pdata->irq_pdata) { |
| 351 | pdata->irq_pdata->irq_cdata.nirqs = PM8921_NR_IRQS; |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 352 | irq_base = pdata->irq_pdata->irq_base; |
| 353 | irq_chip = pm8xxx_irq_init(pmic->dev, pdata->irq_pdata); |
| 354 | |
| 355 | if (IS_ERR(irq_chip)) { |
| 356 | pr_err("Failed to init interrupts ret=%ld\n", |
| 357 | PTR_ERR(irq_chip)); |
| 358 | return PTR_ERR(irq_chip); |
| 359 | } |
| 360 | pmic->irq_chip = irq_chip; |
| 361 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 362 | |
| 363 | if (pdata->gpio_pdata) { |
| 364 | pdata->gpio_pdata->gpio_cdata.ngpios = PM8921_NR_GPIOS; |
| 365 | gpio_cell.platform_data = pdata->gpio_pdata; |
| 366 | gpio_cell.pdata_size = sizeof(struct pm8xxx_gpio_platform_data); |
| 367 | ret = mfd_add_devices(pmic->dev, 0, &gpio_cell, 1, |
| 368 | NULL, irq_base); |
| 369 | if (ret) { |
| 370 | pr_err("Failed to add gpio subdevice ret=%d\n", ret); |
| 371 | goto bail; |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | if (pdata->mpp_pdata) { |
| 376 | pdata->mpp_pdata->core_data.nmpps = PM8921_NR_MPPS; |
| 377 | pdata->mpp_pdata->core_data.base_addr = REG_MPP_BASE; |
| 378 | mpp_cell.platform_data = pdata->mpp_pdata; |
| 379 | mpp_cell.pdata_size = sizeof(struct pm8xxx_mpp_platform_data); |
| 380 | ret = mfd_add_devices(pmic->dev, 0, &mpp_cell, 1, NULL, |
| 381 | irq_base); |
| 382 | if (ret) { |
| 383 | pr_err("Failed to add mpp subdevice ret=%d\n", ret); |
| 384 | goto bail; |
| 385 | } |
| 386 | } |
| 387 | |
| 388 | if (pdata->rtc_pdata) { |
| 389 | rtc_cell.platform_data = pdata->rtc_pdata; |
| 390 | rtc_cell.pdata_size = sizeof(struct pm8xxx_rtc_platform_data); |
| 391 | ret = mfd_add_devices(pmic->dev, 0, &rtc_cell, 1, NULL, |
| 392 | irq_base); |
| 393 | if (ret) { |
| 394 | pr_err("Failed to add rtc subdevice ret=%d\n", ret); |
| 395 | goto bail; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | if (pdata->pwrkey_pdata) { |
| 400 | pwrkey_cell.platform_data = pdata->pwrkey_pdata; |
| 401 | pwrkey_cell.pdata_size = |
| 402 | sizeof(struct pm8xxx_pwrkey_platform_data); |
| 403 | ret = mfd_add_devices(pmic->dev, 0, &pwrkey_cell, 1, NULL, |
| 404 | irq_base); |
| 405 | if (ret) { |
| 406 | pr_err("Failed to add pwrkey subdevice ret=%d\n", ret); |
| 407 | goto bail; |
| 408 | } |
| 409 | } |
| 410 | |
| 411 | if (pdata->keypad_pdata) { |
| 412 | keypad_cell.platform_data = pdata->keypad_pdata; |
| 413 | keypad_cell.pdata_size = |
| 414 | sizeof(struct pm8xxx_keypad_platform_data); |
| 415 | ret = mfd_add_devices(pmic->dev, 0, &keypad_cell, 1, NULL, |
| 416 | irq_base); |
| 417 | if (ret) { |
| 418 | pr_err("Failed to add keypad subdevice ret=%d\n", ret); |
| 419 | goto bail; |
| 420 | } |
| 421 | } |
| 422 | |
| 423 | if (pdata->charger_pdata) { |
| 424 | pdata->charger_pdata->charger_cdata.vbat_channel = CHANNEL_VBAT; |
| 425 | charger_cell.platform_data = pdata->charger_pdata; |
| 426 | charger_cell.pdata_size = |
| 427 | sizeof(struct pm8921_charger_platform_data); |
| 428 | ret = mfd_add_devices(pmic->dev, 0, &charger_cell, 1, NULL, |
| 429 | irq_base); |
| 430 | if (ret) { |
| 431 | pr_err("Failed to add charger subdevice ret=%d\n", ret); |
| 432 | goto bail; |
| 433 | } |
| 434 | } |
| 435 | |
| 436 | if (pdata->adc_pdata) { |
| 437 | adc_cell.platform_data = pdata->adc_pdata; |
| 438 | adc_cell.pdata_size = |
| 439 | sizeof(struct pm8921_adc_platform_data); |
| 440 | ret = mfd_add_devices(pmic->dev, 0, &adc_cell, 1, NULL, |
| 441 | irq_base); |
| 442 | if (ret) { |
| 443 | pr_err("Failed to add regulator subdevices ret=%d\n", |
| 444 | ret); |
| 445 | } |
| 446 | } |
| 447 | |
| 448 | if (pdata->bms_pdata) { |
| 449 | bms_cell.platform_data = pdata->bms_pdata; |
| 450 | bms_cell.pdata_size = |
| 451 | sizeof(struct pm8921_bms_platform_data); |
| 452 | ret = mfd_add_devices(pmic->dev, 0, &bms_cell, 1, NULL, |
| 453 | irq_base); |
| 454 | if (ret) { |
| 455 | pr_err("Failed to add bms subdevice ret=%d\n", ret); |
| 456 | goto bail; |
| 457 | } |
| 458 | } |
| 459 | |
| 460 | /* Add one device for each regulator used by the board. */ |
| 461 | if (pdata->num_regulators > 0 && pdata->regulator_pdatas) { |
| 462 | mfd_regulators = kzalloc(sizeof(struct mfd_cell) |
| 463 | * (pdata->num_regulators), GFP_KERNEL); |
| 464 | if (!mfd_regulators) { |
| 465 | pr_err("Cannot allocate %d bytes for pm8921 regulator " |
| 466 | "mfd cells\n", sizeof(struct mfd_cell) |
| 467 | * (pdata->num_regulators)); |
| 468 | ret = -ENOMEM; |
| 469 | goto bail; |
| 470 | } |
| 471 | for (i = 0; i < pdata->num_regulators; i++) { |
| 472 | mfd_regulators[i].name = PM8921_REGULATOR_DEV_NAME; |
| 473 | mfd_regulators[i].id = pdata->regulator_pdatas[i].id; |
| 474 | mfd_regulators[i].platform_data = |
| 475 | &(pdata->regulator_pdatas[i]); |
| 476 | mfd_regulators[i].pdata_size = |
| 477 | sizeof(struct pm8921_regulator_platform_data); |
| 478 | } |
| 479 | ret = mfd_add_devices(pmic->dev, 0, mfd_regulators, |
| 480 | pdata->num_regulators, NULL, irq_base); |
| 481 | if (ret) { |
| 482 | pr_err("Failed to add regulator subdevices ret=%d\n", |
| 483 | ret); |
| 484 | kfree(mfd_regulators); |
| 485 | goto bail; |
| 486 | } |
| 487 | pmic->mfd_regulators = mfd_regulators; |
| 488 | } |
| 489 | |
| 490 | ret = mfd_add_devices(pmic->dev, 0, &debugfs_cell, 1, NULL, irq_base); |
| 491 | if (ret) { |
| 492 | pr_err("Failed to add debugfs subdevice ret=%d\n", ret); |
| 493 | goto bail; |
| 494 | } |
| 495 | |
| 496 | ret = mfd_add_devices(pmic->dev, 0, &pwm_cell, 1, NULL, 0); |
| 497 | if (ret) { |
| 498 | pr_err("Failed to add pwm subdevice ret=%d\n", ret); |
| 499 | goto bail; |
| 500 | } |
| 501 | |
| 502 | if (pdata->misc_pdata) { |
| 503 | misc_cell.platform_data = pdata->misc_pdata; |
| 504 | misc_cell.pdata_size = sizeof(struct pm8xxx_misc_platform_data); |
| 505 | ret = mfd_add_devices(pmic->dev, 0, &misc_cell, 1, NULL, |
| 506 | irq_base); |
| 507 | if (ret) { |
| 508 | pr_err("Failed to add misc subdevice ret=%d\n", ret); |
| 509 | goto bail; |
| 510 | } |
| 511 | } |
| 512 | |
| 513 | if (pdata->leds_pdata) { |
| 514 | /* PM8921 supports only 4 LED DRVs */ |
| 515 | for (i = 0; i < pdata->leds_pdata->num_leds; i++) { |
| 516 | if (pdata->leds_pdata->leds[i].flags > |
| 517 | PM8XXX_ID_LED_2) { |
| 518 | pr_err("%s: LED %d not supported\n", __func__, |
| 519 | pdata->leds_pdata->leds[i].flags); |
| 520 | goto bail; |
| 521 | } |
| 522 | } |
| 523 | leds_cell.platform_data = pdata->leds_pdata; |
| 524 | leds_cell.pdata_size = sizeof(struct led_platform_data); |
| 525 | ret = mfd_add_devices(pmic->dev, 0, &leds_cell, 1, NULL, 0); |
| 526 | if (ret) { |
| 527 | pr_err("Failed to add leds subdevice ret=%d\n", ret); |
| 528 | goto bail; |
| 529 | } |
| 530 | } |
| 531 | |
| 532 | ret = mfd_add_devices(pmic->dev, 0, &thermal_alarm_cell, 1, NULL, |
| 533 | irq_base); |
| 534 | if (ret) { |
| 535 | pr_err("Failed to add thermal alarm subdevice ret=%d\n", |
| 536 | ret); |
| 537 | goto bail; |
| 538 | } |
| 539 | |
| 540 | ret = mfd_add_devices(pmic->dev, 0, &batt_alarm_cell, 1, NULL, |
| 541 | irq_base); |
| 542 | if (ret) { |
| 543 | pr_err("Failed to add battery alarm subdevice ret=%d\n", |
| 544 | ret); |
| 545 | goto bail; |
| 546 | } |
| 547 | |
| 548 | return 0; |
| 549 | bail: |
| 550 | if (pmic->irq_chip) { |
| 551 | pm8xxx_irq_exit(pmic->irq_chip); |
| 552 | pmic->irq_chip = NULL; |
| 553 | } |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 554 | return ret; |
| 555 | } |
| 556 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 557 | static const char * const pm8921_rev_names[] = { |
| 558 | [PM8XXX_REVISION_8921_TEST] = "test", |
| 559 | [PM8XXX_REVISION_8921_1p0] = "1.0", |
| 560 | [PM8XXX_REVISION_8921_1p1] = "1.1", |
| 561 | [PM8XXX_REVISION_8921_2p0] = "2.0", |
| 562 | }; |
| 563 | |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 564 | static int __devinit pm8921_probe(struct platform_device *pdev) |
| 565 | { |
| 566 | const struct pm8921_platform_data *pdata = pdev->dev.platform_data; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 567 | const char *revision_name = "unknown"; |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 568 | struct pm8921 *pmic; |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 569 | enum pm8xxx_version version; |
| 570 | int revision; |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 571 | int rc; |
| 572 | u8 val; |
| 573 | |
| 574 | if (!pdata) { |
| 575 | pr_err("missing platform data\n"); |
| 576 | return -EINVAL; |
| 577 | } |
| 578 | |
| 579 | pmic = kzalloc(sizeof(struct pm8921), GFP_KERNEL); |
| 580 | if (!pmic) { |
| 581 | pr_err("Cannot alloc pm8921 struct\n"); |
| 582 | return -ENOMEM; |
| 583 | } |
| 584 | |
| 585 | /* Read PMIC chip revision */ |
| 586 | rc = msm_ssbi_read(pdev->dev.parent, REG_HWREV, &val, sizeof(val)); |
| 587 | if (rc) { |
| 588 | pr_err("Failed to read hw rev reg %d:rc=%d\n", REG_HWREV, rc); |
| 589 | goto err_read_rev; |
| 590 | } |
| 591 | pr_info("PMIC revision 1: %02X\n", val); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 592 | pmic->rev_registers = val; |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 593 | |
| 594 | /* Read PMIC chip revision 2 */ |
| 595 | rc = msm_ssbi_read(pdev->dev.parent, REG_HWREV_2, &val, sizeof(val)); |
| 596 | if (rc) { |
| 597 | pr_err("Failed to read hw rev 2 reg %d:rc=%d\n", |
| 598 | REG_HWREV_2, rc); |
| 599 | goto err_read_rev; |
| 600 | } |
| 601 | pr_info("PMIC revision 2: %02X\n", val); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 602 | pmic->rev_registers |= val << BITS_PER_BYTE; |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 603 | |
| 604 | pmic->dev = &pdev->dev; |
| 605 | pm8921_drvdata.pm_chip_data = pmic; |
| 606 | platform_set_drvdata(pdev, &pm8921_drvdata); |
| 607 | |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 608 | /* Print out human readable version and revision names. */ |
| 609 | version = pm8xxx_get_version(pmic->dev); |
| 610 | if (version == PM8XXX_VERSION_8921) { |
| 611 | revision = pm8xxx_get_revision(pmic->dev); |
| 612 | if (revision >= 0 && revision < ARRAY_SIZE(pm8921_rev_names)) |
| 613 | revision_name = pm8921_rev_names[revision]; |
| 614 | pr_info("PMIC version: PM8921 rev %s\n", revision_name); |
| 615 | } else { |
| 616 | WARN_ON(version != PM8XXX_VERSION_8921); |
| 617 | } |
| 618 | |
| 619 | rc = pm8921_add_subdevices(pdata, pmic); |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 620 | if (rc) { |
| 621 | pr_err("Cannot add subdevices rc=%d\n", rc); |
| 622 | goto err; |
| 623 | } |
| 624 | |
| 625 | /* gpio might not work if no irq device is found */ |
| 626 | WARN_ON(pmic->irq_chip == NULL); |
| 627 | |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 628 | return 0; |
| 629 | |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 630 | err: |
| 631 | mfd_remove_devices(pmic->dev); |
| 632 | platform_set_drvdata(pdev, NULL); |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 633 | err_read_rev: |
| 634 | kfree(pmic); |
| 635 | return rc; |
| 636 | } |
| 637 | |
| 638 | static int __devexit pm8921_remove(struct platform_device *pdev) |
| 639 | { |
| 640 | struct pm8xxx_drvdata *drvdata; |
| 641 | struct pm8921 *pmic = NULL; |
| 642 | |
| 643 | drvdata = platform_get_drvdata(pdev); |
| 644 | if (drvdata) |
| 645 | pmic = drvdata->pm_chip_data; |
| 646 | if (pmic) |
| 647 | mfd_remove_devices(pmic->dev); |
Abhijeet Dharmapurikar | c013f0a | 2011-04-05 14:40:53 -0700 | [diff] [blame] | 648 | if (pmic->irq_chip) { |
| 649 | pm8xxx_irq_exit(pmic->irq_chip); |
| 650 | pmic->irq_chip = NULL; |
| 651 | } |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 652 | platform_set_drvdata(pdev, NULL); |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 653 | kfree(pmic->mfd_regulators); |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 654 | kfree(pmic); |
| 655 | |
| 656 | return 0; |
| 657 | } |
| 658 | |
| 659 | static struct platform_driver pm8921_driver = { |
| 660 | .probe = pm8921_probe, |
| 661 | .remove = __devexit_p(pm8921_remove), |
| 662 | .driver = { |
| 663 | .name = "pm8921-core", |
| 664 | .owner = THIS_MODULE, |
| 665 | }, |
| 666 | }; |
| 667 | |
| 668 | static int __init pm8921_init(void) |
| 669 | { |
| 670 | return platform_driver_register(&pm8921_driver); |
| 671 | } |
Bryan Huntsman | 3f2bc4d | 2011-08-16 17:27:22 -0700 | [diff] [blame^] | 672 | postcore_initcall(pm8921_init); |
Abhijeet Dharmapurikar | cbdb53e | 2011-04-05 14:40:52 -0700 | [diff] [blame] | 673 | |
| 674 | static void __exit pm8921_exit(void) |
| 675 | { |
| 676 | platform_driver_unregister(&pm8921_driver); |
| 677 | } |
| 678 | module_exit(pm8921_exit); |
| 679 | |
| 680 | MODULE_LICENSE("GPL v2"); |
| 681 | MODULE_DESCRIPTION("PMIC 8921 core driver"); |
| 682 | MODULE_VERSION("1.0"); |
| 683 | MODULE_ALIAS("platform:pm8921-core"); |