18c0984e5SSebastian Reichel /* 28c0984e5SSebastian Reichel * BQ27xxx battery driver 38c0984e5SSebastian Reichel * 48c0984e5SSebastian Reichel * Copyright (C) 2008 Rodolfo Giometti <giometti@linux.it> 58c0984e5SSebastian Reichel * Copyright (C) 2008 Eurotech S.p.A. <info@eurotech.it> 68c0984e5SSebastian Reichel * Copyright (C) 2010-2011 Lars-Peter Clausen <lars@metafoo.de> 78c0984e5SSebastian Reichel * Copyright (C) 2011 Pali Rohár <pali.rohar@gmail.com> 88c0984e5SSebastian Reichel * 98c0984e5SSebastian Reichel * Based on a previous work by Copyright (C) 2008 Texas Instruments, Inc. 108c0984e5SSebastian Reichel * 118c0984e5SSebastian Reichel * This package is free software; you can redistribute it and/or modify 128c0984e5SSebastian Reichel * it under the terms of the GNU General Public License version 2 as 138c0984e5SSebastian Reichel * published by the Free Software Foundation. 148c0984e5SSebastian Reichel * 158c0984e5SSebastian Reichel * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 168c0984e5SSebastian Reichel * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 178c0984e5SSebastian Reichel * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 188c0984e5SSebastian Reichel * 198c0984e5SSebastian Reichel * Datasheets: 208c0984e5SSebastian Reichel * http://www.ti.com/product/bq27000 218c0984e5SSebastian Reichel * http://www.ti.com/product/bq27200 228c0984e5SSebastian Reichel * http://www.ti.com/product/bq27010 238c0984e5SSebastian Reichel * http://www.ti.com/product/bq27210 248c0984e5SSebastian Reichel * http://www.ti.com/product/bq27500 25bd28177fSChris Lapa * http://www.ti.com/product/bq27510-g1 26698a2bf5SChris Lapa * http://www.ti.com/product/bq27510-g2 278c0984e5SSebastian Reichel * http://www.ti.com/product/bq27510-g3 288c0984e5SSebastian Reichel * http://www.ti.com/product/bq27520-g4 298c0984e5SSebastian Reichel * http://www.ti.com/product/bq27530-g1 308c0984e5SSebastian Reichel * http://www.ti.com/product/bq27531-g1 318c0984e5SSebastian Reichel * http://www.ti.com/product/bq27541-g1 328c0984e5SSebastian Reichel * http://www.ti.com/product/bq27542-g1 338c0984e5SSebastian Reichel * http://www.ti.com/product/bq27546-g1 348c0984e5SSebastian Reichel * http://www.ti.com/product/bq27742-g1 358c0984e5SSebastian Reichel * http://www.ti.com/product/bq27545-g1 368c0984e5SSebastian Reichel * http://www.ti.com/product/bq27421-g1 378c0984e5SSebastian Reichel * http://www.ti.com/product/bq27425-g1 388c0984e5SSebastian Reichel * http://www.ti.com/product/bq27411-g1 398c0984e5SSebastian Reichel * http://www.ti.com/product/bq27621-g1 408c0984e5SSebastian Reichel */ 418c0984e5SSebastian Reichel 428c0984e5SSebastian Reichel #include <linux/device.h> 438c0984e5SSebastian Reichel #include <linux/module.h> 441d72706fSMatt Ranostay #include <linux/mutex.h> 458c0984e5SSebastian Reichel #include <linux/param.h> 468c0984e5SSebastian Reichel #include <linux/jiffies.h> 478c0984e5SSebastian Reichel #include <linux/workqueue.h> 488c0984e5SSebastian Reichel #include <linux/delay.h> 498c0984e5SSebastian Reichel #include <linux/platform_device.h> 508c0984e5SSebastian Reichel #include <linux/power_supply.h> 518c0984e5SSebastian Reichel #include <linux/slab.h> 528c0984e5SSebastian Reichel #include <linux/of.h> 538c0984e5SSebastian Reichel 548c0984e5SSebastian Reichel #include <linux/power/bq27xxx_battery.h> 558c0984e5SSebastian Reichel 568c0984e5SSebastian Reichel #define DRIVER_VERSION "1.2.0" 578c0984e5SSebastian Reichel 588c0984e5SSebastian Reichel #define BQ27XXX_MANUFACTURER "Texas Instruments" 598c0984e5SSebastian Reichel 608c0984e5SSebastian Reichel /* BQ27XXX Flags */ 618c0984e5SSebastian Reichel #define BQ27XXX_FLAG_DSC BIT(0) 628c0984e5SSebastian Reichel #define BQ27XXX_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */ 638c0984e5SSebastian Reichel #define BQ27XXX_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */ 648c0984e5SSebastian Reichel #define BQ27XXX_FLAG_FC BIT(9) 658c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OTD BIT(14) 668c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OTC BIT(15) 678c0984e5SSebastian Reichel #define BQ27XXX_FLAG_UT BIT(14) 688c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OT BIT(15) 698c0984e5SSebastian Reichel 708c0984e5SSebastian Reichel /* BQ27000 has different layout for Flags register */ 718c0984e5SSebastian Reichel #define BQ27000_FLAG_EDVF BIT(0) /* Final End-of-Discharge-Voltage flag */ 728c0984e5SSebastian Reichel #define BQ27000_FLAG_EDV1 BIT(1) /* First End-of-Discharge-Voltage flag */ 738c0984e5SSebastian Reichel #define BQ27000_FLAG_CI BIT(4) /* Capacity Inaccurate flag */ 748c0984e5SSebastian Reichel #define BQ27000_FLAG_FC BIT(5) 758c0984e5SSebastian Reichel #define BQ27000_FLAG_CHGS BIT(7) /* Charge state flag */ 768c0984e5SSebastian Reichel 778c0984e5SSebastian Reichel #define BQ27XXX_RS (20) /* Resistor sense mOhm */ 788c0984e5SSebastian Reichel #define BQ27XXX_POWER_CONSTANT (29200) /* 29.2 µV^2 * 1000 */ 798c0984e5SSebastian Reichel #define BQ27XXX_CURRENT_CONSTANT (3570) /* 3.57 µV * 1000 */ 808c0984e5SSebastian Reichel 818c0984e5SSebastian Reichel #define INVALID_REG_ADDR 0xff 828c0984e5SSebastian Reichel 838c0984e5SSebastian Reichel /* 848c0984e5SSebastian Reichel * bq27xxx_reg_index - Register names 858c0984e5SSebastian Reichel * 868c0984e5SSebastian Reichel * These are indexes into a device's register mapping array. 878c0984e5SSebastian Reichel */ 888c0984e5SSebastian Reichel 898c0984e5SSebastian Reichel enum bq27xxx_reg_index { 908c0984e5SSebastian Reichel BQ27XXX_REG_CTRL = 0, /* Control */ 918c0984e5SSebastian Reichel BQ27XXX_REG_TEMP, /* Temperature */ 928c0984e5SSebastian Reichel BQ27XXX_REG_INT_TEMP, /* Internal Temperature */ 938c0984e5SSebastian Reichel BQ27XXX_REG_VOLT, /* Voltage */ 948c0984e5SSebastian Reichel BQ27XXX_REG_AI, /* Average Current */ 958c0984e5SSebastian Reichel BQ27XXX_REG_FLAGS, /* Flags */ 968c0984e5SSebastian Reichel BQ27XXX_REG_TTE, /* Time-to-Empty */ 978c0984e5SSebastian Reichel BQ27XXX_REG_TTF, /* Time-to-Full */ 988c0984e5SSebastian Reichel BQ27XXX_REG_TTES, /* Time-to-Empty Standby */ 998c0984e5SSebastian Reichel BQ27XXX_REG_TTECP, /* Time-to-Empty at Constant Power */ 1008c0984e5SSebastian Reichel BQ27XXX_REG_NAC, /* Nominal Available Capacity */ 1018c0984e5SSebastian Reichel BQ27XXX_REG_FCC, /* Full Charge Capacity */ 1028c0984e5SSebastian Reichel BQ27XXX_REG_CYCT, /* Cycle Count */ 1038c0984e5SSebastian Reichel BQ27XXX_REG_AE, /* Available Energy */ 1048c0984e5SSebastian Reichel BQ27XXX_REG_SOC, /* State-of-Charge */ 1058c0984e5SSebastian Reichel BQ27XXX_REG_DCAP, /* Design Capacity */ 1068c0984e5SSebastian Reichel BQ27XXX_REG_AP, /* Average Power */ 1078c0984e5SSebastian Reichel BQ27XXX_REG_MAX, /* sentinel */ 1088c0984e5SSebastian Reichel }; 1098c0984e5SSebastian Reichel 1108c0984e5SSebastian Reichel /* Register mappings */ 1118c0984e5SSebastian Reichel static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = { 1128c0984e5SSebastian Reichel [BQ27000] = { 1138c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1148c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1158c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 1168c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1178c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1188c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1198c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1208c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = 0x18, 1218c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1c, 1228c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = 0x26, 1238c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1248c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1258c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1268c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = 0x22, 1278c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x0b, 1288c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x76, 1298c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 1308c0984e5SSebastian Reichel }, 1318c0984e5SSebastian Reichel [BQ27010] = { 1328c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1338c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1348c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 1358c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1368c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1378c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1388c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1398c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = 0x18, 1408c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1c, 1418c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = 0x26, 1428c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1438c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1448c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1458c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1468c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x0b, 1478c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x76, 1488c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1498c0984e5SSebastian Reichel }, 150818e3012SChris Lapa [BQ2750X] = { 1518c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1528c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1538c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 1548c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1558c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1568c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1578c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1588c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 1598c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1a, 1608c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 1618c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1628c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1638c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1648c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1658c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 1668c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 1678c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1688c0984e5SSebastian Reichel }, 1696da6e4bdSChris Lapa [BQ2751X] = { 1703bee9ea1SAndrew F. Davis [BQ27XXX_REG_CTRL] = 0x00, 1713bee9ea1SAndrew F. Davis [BQ27XXX_REG_TEMP] = 0x06, 1723bee9ea1SAndrew F. Davis [BQ27XXX_REG_INT_TEMP] = 0x28, 1733bee9ea1SAndrew F. Davis [BQ27XXX_REG_VOLT] = 0x08, 1743bee9ea1SAndrew F. Davis [BQ27XXX_REG_AI] = 0x14, 1753bee9ea1SAndrew F. Davis [BQ27XXX_REG_FLAGS] = 0x0a, 1763bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTE] = 0x16, 1773bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 1783bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTES] = 0x1a, 1793bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 1803bee9ea1SAndrew F. Davis [BQ27XXX_REG_NAC] = 0x0c, 1813bee9ea1SAndrew F. Davis [BQ27XXX_REG_FCC] = 0x12, 1823bee9ea1SAndrew F. Davis [BQ27XXX_REG_CYCT] = 0x1e, 1833bee9ea1SAndrew F. Davis [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1843bee9ea1SAndrew F. Davis [BQ27XXX_REG_SOC] = 0x20, 1853bee9ea1SAndrew F. Davis [BQ27XXX_REG_DCAP] = 0x2e, 1863bee9ea1SAndrew F. Davis [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1873bee9ea1SAndrew F. Davis }, 18832833635SChris Lapa [BQ27500] = { 18932833635SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 19032833635SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 19132833635SChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 19232833635SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 19332833635SChris Lapa [BQ27XXX_REG_AI] = 0x14, 19432833635SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 19532833635SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 19632833635SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 19732833635SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 19832833635SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 19932833635SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 20032833635SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 20132833635SChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 20232833635SChris Lapa [BQ27XXX_REG_AE] = 0x22, 20332833635SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 20432833635SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 20532833635SChris Lapa [BQ27XXX_REG_AP] = 0x24, 20632833635SChris Lapa }, 207bd28177fSChris Lapa [BQ27510G1] = { 208bd28177fSChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 209bd28177fSChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 210bd28177fSChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 211bd28177fSChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 212bd28177fSChris Lapa [BQ27XXX_REG_AI] = 0x14, 213bd28177fSChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 214bd28177fSChris Lapa [BQ27XXX_REG_TTE] = 0x16, 215bd28177fSChris Lapa [BQ27XXX_REG_TTF] = 0x18, 216bd28177fSChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 217bd28177fSChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 218bd28177fSChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 219bd28177fSChris Lapa [BQ27XXX_REG_FCC] = 0x12, 220bd28177fSChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 221bd28177fSChris Lapa [BQ27XXX_REG_AE] = 0x22, 222bd28177fSChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 223bd28177fSChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 224bd28177fSChris Lapa [BQ27XXX_REG_AP] = 0x24, 225bd28177fSChris Lapa }, 226698a2bf5SChris Lapa [BQ27510G2] = { 227698a2bf5SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 228698a2bf5SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 229698a2bf5SChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 230698a2bf5SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 231698a2bf5SChris Lapa [BQ27XXX_REG_AI] = 0x14, 232698a2bf5SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 233698a2bf5SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 234698a2bf5SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 235698a2bf5SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 236698a2bf5SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 237698a2bf5SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 238698a2bf5SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 239698a2bf5SChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 240698a2bf5SChris Lapa [BQ27XXX_REG_AE] = 0x22, 241698a2bf5SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 242698a2bf5SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 243698a2bf5SChris Lapa [BQ27XXX_REG_AP] = 0x24, 244698a2bf5SChris Lapa }, 24571375aa7SChris Lapa [BQ27510G3] = { 24671375aa7SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 24771375aa7SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 24871375aa7SChris Lapa [BQ27XXX_REG_INT_TEMP] = 0x28, 24971375aa7SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 25071375aa7SChris Lapa [BQ27XXX_REG_AI] = 0x14, 25171375aa7SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 25271375aa7SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 25371375aa7SChris Lapa [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 25471375aa7SChris Lapa [BQ27XXX_REG_TTES] = 0x1a, 25571375aa7SChris Lapa [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 25671375aa7SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 25771375aa7SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 25871375aa7SChris Lapa [BQ27XXX_REG_CYCT] = 0x1e, 25971375aa7SChris Lapa [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 26071375aa7SChris Lapa [BQ27XXX_REG_SOC] = 0x20, 26171375aa7SChris Lapa [BQ27XXX_REG_DCAP] = 0x2e, 26271375aa7SChris Lapa [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 26371375aa7SChris Lapa }, 2648c0984e5SSebastian Reichel [BQ27530] = { 2658c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 2668c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 2678c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x32, 2688c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 2698c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 2708c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 2718c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 2728c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 2738c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 2748c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 2758c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 2768c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 2778c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 2788c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 2798c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 2808c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR, 2818c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 2828c0984e5SSebastian Reichel }, 2838c0984e5SSebastian Reichel [BQ27541] = { 2848c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 2858c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 2868c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 2878c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 2888c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 2898c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 2908c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 2918c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 2928c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 2938c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 2948c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 2958c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 2968c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 2978c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 2988c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 2998c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 3008c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 3018c0984e5SSebastian Reichel }, 3028c0984e5SSebastian Reichel [BQ27545] = { 3038c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3048c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 3058c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 3068c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 3078c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 3088c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 3098c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 3108c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3118c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3128c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3138c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 3148c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 3158c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 3168c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3178c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 3188c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR, 3198c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 3208c0984e5SSebastian Reichel }, 3218c0984e5SSebastian Reichel [BQ27421] = { 3228c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3238c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x02, 3248c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x1e, 3258c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x04, 3268c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x10, 3278c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x06, 3288c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = INVALID_REG_ADDR, 3298c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3308c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3318c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3328c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x08, 3338c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x0e, 3348c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = INVALID_REG_ADDR, 3358c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3368c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x1c, 3378c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 3388c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x18, 3398c0984e5SSebastian Reichel }, 3408c0984e5SSebastian Reichel }; 3418c0984e5SSebastian Reichel 3428c0984e5SSebastian Reichel static enum power_supply_property bq27000_battery_props[] = { 3438c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 3448c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 3458c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 3468c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 3478c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 3488c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 3498c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 3508c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 3518c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 3528c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 3538c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 3548c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 3558c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 3568c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 3578c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 3588c0984e5SSebastian Reichel POWER_SUPPLY_PROP_ENERGY_NOW, 3598c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 3608c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 3618c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 3628c0984e5SSebastian Reichel }; 3638c0984e5SSebastian Reichel 3648c0984e5SSebastian Reichel static enum power_supply_property bq27010_battery_props[] = { 3658c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 3668c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 3678c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 3688c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 3698c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 3708c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 3718c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 3728c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 3738c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 3748c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 3758c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 3768c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 3778c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 3788c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 3798c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 3808c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 3818c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 3828c0984e5SSebastian Reichel }; 3838c0984e5SSebastian Reichel 384818e3012SChris Lapa static enum power_supply_property bq2750x_battery_props[] = { 3858c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 3868c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 3878c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 3888c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 3898c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 3908c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 3918c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 3928c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 3938c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 3948c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 3958c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 3968c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 3978c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 3988c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 3998c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 4008c0984e5SSebastian Reichel }; 4018c0984e5SSebastian Reichel 4026da6e4bdSChris Lapa static enum power_supply_property bq2751x_battery_props[] = { 4033bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_STATUS, 4043bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_PRESENT, 4053bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_VOLTAGE_NOW, 4063bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CURRENT_NOW, 4073bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CAPACITY, 4083bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CAPACITY_LEVEL, 4093bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TEMP, 4103bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 4113bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TECHNOLOGY, 4123bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_FULL, 4133bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_NOW, 4143bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 4153bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CYCLE_COUNT, 4163bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_HEALTH, 4173bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_MANUFACTURER, 4183bee9ea1SAndrew F. Davis }; 4193bee9ea1SAndrew F. Davis 42032833635SChris Lapa static enum power_supply_property bq27500_battery_props[] = { 42132833635SChris Lapa POWER_SUPPLY_PROP_STATUS, 42232833635SChris Lapa POWER_SUPPLY_PROP_PRESENT, 42332833635SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 42432833635SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 42532833635SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 42632833635SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 42732833635SChris Lapa POWER_SUPPLY_PROP_TEMP, 42832833635SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 42932833635SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 43032833635SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 43132833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 43232833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 43332833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 43432833635SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 43532833635SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 43632833635SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 43732833635SChris Lapa POWER_SUPPLY_PROP_HEALTH, 43832833635SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 43932833635SChris Lapa }; 44032833635SChris Lapa 441bd28177fSChris Lapa static enum power_supply_property bq27510g1_battery_props[] = { 442bd28177fSChris Lapa POWER_SUPPLY_PROP_STATUS, 443bd28177fSChris Lapa POWER_SUPPLY_PROP_PRESENT, 444bd28177fSChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 445bd28177fSChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 446bd28177fSChris Lapa POWER_SUPPLY_PROP_CAPACITY, 447bd28177fSChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 448bd28177fSChris Lapa POWER_SUPPLY_PROP_TEMP, 449bd28177fSChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 450bd28177fSChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 451bd28177fSChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 452bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 453bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 454bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 455bd28177fSChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 456bd28177fSChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 457bd28177fSChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 458bd28177fSChris Lapa POWER_SUPPLY_PROP_HEALTH, 459bd28177fSChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 460bd28177fSChris Lapa }; 461bd28177fSChris Lapa 462698a2bf5SChris Lapa static enum power_supply_property bq27510g2_battery_props[] = { 463698a2bf5SChris Lapa POWER_SUPPLY_PROP_STATUS, 464698a2bf5SChris Lapa POWER_SUPPLY_PROP_PRESENT, 465698a2bf5SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 466698a2bf5SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 467698a2bf5SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 468698a2bf5SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 469698a2bf5SChris Lapa POWER_SUPPLY_PROP_TEMP, 470698a2bf5SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 471698a2bf5SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 472698a2bf5SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 473698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 474698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 475698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 476698a2bf5SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 477698a2bf5SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 478698a2bf5SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 479698a2bf5SChris Lapa POWER_SUPPLY_PROP_HEALTH, 480698a2bf5SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 481698a2bf5SChris Lapa }; 482698a2bf5SChris Lapa 48371375aa7SChris Lapa static enum power_supply_property bq27510g3_battery_props[] = { 48471375aa7SChris Lapa POWER_SUPPLY_PROP_STATUS, 48571375aa7SChris Lapa POWER_SUPPLY_PROP_PRESENT, 48671375aa7SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 48771375aa7SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 48871375aa7SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 48971375aa7SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 49071375aa7SChris Lapa POWER_SUPPLY_PROP_TEMP, 49171375aa7SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 49271375aa7SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 49371375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 49471375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 49571375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 49671375aa7SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 49771375aa7SChris Lapa POWER_SUPPLY_PROP_HEALTH, 49871375aa7SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 49971375aa7SChris Lapa }; 50071375aa7SChris Lapa 5018c0984e5SSebastian Reichel static enum power_supply_property bq27530_battery_props[] = { 5028c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 5038c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 5048c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 5058c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 5068c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 5078c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 5088c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 5098c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 5108c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 5118c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 5128c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 5138c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 5148c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 5158c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 5168c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 5178c0984e5SSebastian Reichel }; 5188c0984e5SSebastian Reichel 5198c0984e5SSebastian Reichel static enum power_supply_property bq27541_battery_props[] = { 5208c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 5218c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 5228c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 5238c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 5248c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 5258c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 5268c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 5278c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 5288c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 5298c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 5308c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 5318c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 5328c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 5338c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 5348c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 5358c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 5368c0984e5SSebastian Reichel }; 5378c0984e5SSebastian Reichel 5388c0984e5SSebastian Reichel static enum power_supply_property bq27545_battery_props[] = { 5398c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 5408c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 5418c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 5428c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 5438c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 5448c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 5458c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 5468c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 5478c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 5488c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 5498c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 5508c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 5518c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 5528c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 5538c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 5548c0984e5SSebastian Reichel }; 5558c0984e5SSebastian Reichel 5568c0984e5SSebastian Reichel static enum power_supply_property bq27421_battery_props[] = { 5578c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 5588c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 5598c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 5608c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 5618c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 5628c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 5638c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 5648c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 5658c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 5668c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 5678c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 5688c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 5698c0984e5SSebastian Reichel }; 5708c0984e5SSebastian Reichel 5718c0984e5SSebastian Reichel #define BQ27XXX_PROP(_id, _prop) \ 5728c0984e5SSebastian Reichel [_id] = { \ 5738c0984e5SSebastian Reichel .props = _prop, \ 5748c0984e5SSebastian Reichel .size = ARRAY_SIZE(_prop), \ 5758c0984e5SSebastian Reichel } 5768c0984e5SSebastian Reichel 5778c0984e5SSebastian Reichel static struct { 5788c0984e5SSebastian Reichel enum power_supply_property *props; 5798c0984e5SSebastian Reichel size_t size; 5808c0984e5SSebastian Reichel } bq27xxx_battery_props[] = { 5818c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27000, bq27000_battery_props), 5828c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27010, bq27010_battery_props), 583818e3012SChris Lapa BQ27XXX_PROP(BQ2750X, bq2750x_battery_props), 5846da6e4bdSChris Lapa BQ27XXX_PROP(BQ2751X, bq2751x_battery_props), 58532833635SChris Lapa BQ27XXX_PROP(BQ27500, bq27500_battery_props), 586bd28177fSChris Lapa BQ27XXX_PROP(BQ27510G1, bq27510g1_battery_props), 587698a2bf5SChris Lapa BQ27XXX_PROP(BQ27510G2, bq27510g2_battery_props), 58871375aa7SChris Lapa BQ27XXX_PROP(BQ27510G3, bq27510g3_battery_props), 5898c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27530, bq27530_battery_props), 5908c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27541, bq27541_battery_props), 5918c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27545, bq27545_battery_props), 5928c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27421, bq27421_battery_props), 5938c0984e5SSebastian Reichel }; 5948c0984e5SSebastian Reichel 5951d72706fSMatt Ranostay static DEFINE_MUTEX(bq27xxx_list_lock); 5961d72706fSMatt Ranostay static LIST_HEAD(bq27xxx_battery_devices); 5971d72706fSMatt Ranostay 5981d72706fSMatt Ranostay static int poll_interval_param_set(const char *val, const struct kernel_param *kp) 5991d72706fSMatt Ranostay { 6001d72706fSMatt Ranostay struct bq27xxx_device_info *di; 601950b6c2dSMatt Ranostay unsigned int prev_val = *(unsigned int *) kp->arg; 6021d72706fSMatt Ranostay int ret; 6031d72706fSMatt Ranostay 6041d72706fSMatt Ranostay ret = param_set_uint(val, kp); 605950b6c2dSMatt Ranostay if (ret < 0 || prev_val == *(unsigned int *) kp->arg) 6061d72706fSMatt Ranostay return ret; 6071d72706fSMatt Ranostay 6081d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 6091d72706fSMatt Ranostay list_for_each_entry(di, &bq27xxx_battery_devices, list) { 6101d72706fSMatt Ranostay cancel_delayed_work_sync(&di->work); 6111d72706fSMatt Ranostay schedule_delayed_work(&di->work, 0); 6121d72706fSMatt Ranostay } 6131d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 6141d72706fSMatt Ranostay 6151d72706fSMatt Ranostay return ret; 6161d72706fSMatt Ranostay } 6171d72706fSMatt Ranostay 6181d72706fSMatt Ranostay static const struct kernel_param_ops param_ops_poll_interval = { 6191d72706fSMatt Ranostay .get = param_get_uint, 6201d72706fSMatt Ranostay .set = poll_interval_param_set, 6211d72706fSMatt Ranostay }; 6221d72706fSMatt Ranostay 6238c0984e5SSebastian Reichel static unsigned int poll_interval = 360; 6241d72706fSMatt Ranostay module_param_cb(poll_interval, ¶m_ops_poll_interval, &poll_interval, 0644); 6258c0984e5SSebastian Reichel MODULE_PARM_DESC(poll_interval, 6268c0984e5SSebastian Reichel "battery poll interval in seconds - 0 disables polling"); 6278c0984e5SSebastian Reichel 6288c0984e5SSebastian Reichel /* 6298c0984e5SSebastian Reichel * Common code for BQ27xxx devices 6308c0984e5SSebastian Reichel */ 6318c0984e5SSebastian Reichel 6328c0984e5SSebastian Reichel static inline int bq27xxx_read(struct bq27xxx_device_info *di, int reg_index, 6338c0984e5SSebastian Reichel bool single) 6348c0984e5SSebastian Reichel { 6358c0984e5SSebastian Reichel /* Reports EINVAL for invalid/missing registers */ 6368c0984e5SSebastian Reichel if (!di || di->regs[reg_index] == INVALID_REG_ADDR) 6378c0984e5SSebastian Reichel return -EINVAL; 6388c0984e5SSebastian Reichel 6398c0984e5SSebastian Reichel return di->bus.read(di, di->regs[reg_index], single); 6408c0984e5SSebastian Reichel } 6418c0984e5SSebastian Reichel 6428c0984e5SSebastian Reichel /* 6438c0984e5SSebastian Reichel * Return the battery State-of-Charge 6448c0984e5SSebastian Reichel * Or < 0 if something fails. 6458c0984e5SSebastian Reichel */ 6468c0984e5SSebastian Reichel static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di) 6478c0984e5SSebastian Reichel { 6488c0984e5SSebastian Reichel int soc; 6498c0984e5SSebastian Reichel 6508c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 6518c0984e5SSebastian Reichel soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true); 6528c0984e5SSebastian Reichel else 6538c0984e5SSebastian Reichel soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false); 6548c0984e5SSebastian Reichel 6558c0984e5SSebastian Reichel if (soc < 0) 6568c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading State-of-Charge\n"); 6578c0984e5SSebastian Reichel 6588c0984e5SSebastian Reichel return soc; 6598c0984e5SSebastian Reichel } 6608c0984e5SSebastian Reichel 6618c0984e5SSebastian Reichel /* 6628c0984e5SSebastian Reichel * Return a battery charge value in µAh 6638c0984e5SSebastian Reichel * Or < 0 if something fails. 6648c0984e5SSebastian Reichel */ 6658c0984e5SSebastian Reichel static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg) 6668c0984e5SSebastian Reichel { 6678c0984e5SSebastian Reichel int charge; 6688c0984e5SSebastian Reichel 6698c0984e5SSebastian Reichel charge = bq27xxx_read(di, reg, false); 6708c0984e5SSebastian Reichel if (charge < 0) { 6718c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading charge register %02x: %d\n", 6728c0984e5SSebastian Reichel reg, charge); 6738c0984e5SSebastian Reichel return charge; 6748c0984e5SSebastian Reichel } 6758c0984e5SSebastian Reichel 6768c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 6778c0984e5SSebastian Reichel charge *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 6788c0984e5SSebastian Reichel else 6798c0984e5SSebastian Reichel charge *= 1000; 6808c0984e5SSebastian Reichel 6818c0984e5SSebastian Reichel return charge; 6828c0984e5SSebastian Reichel } 6838c0984e5SSebastian Reichel 6848c0984e5SSebastian Reichel /* 6858c0984e5SSebastian Reichel * Return the battery Nominal available capacity in µAh 6868c0984e5SSebastian Reichel * Or < 0 if something fails. 6878c0984e5SSebastian Reichel */ 6888c0984e5SSebastian Reichel static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di) 6898c0984e5SSebastian Reichel { 6908c0984e5SSebastian Reichel int flags; 6918c0984e5SSebastian Reichel 6928c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 6938c0984e5SSebastian Reichel flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true); 6948c0984e5SSebastian Reichel if (flags >= 0 && (flags & BQ27000_FLAG_CI)) 6958c0984e5SSebastian Reichel return -ENODATA; 6968c0984e5SSebastian Reichel } 6978c0984e5SSebastian Reichel 6988c0984e5SSebastian Reichel return bq27xxx_battery_read_charge(di, BQ27XXX_REG_NAC); 6998c0984e5SSebastian Reichel } 7008c0984e5SSebastian Reichel 7018c0984e5SSebastian Reichel /* 7028c0984e5SSebastian Reichel * Return the battery Full Charge Capacity in µAh 7038c0984e5SSebastian Reichel * Or < 0 if something fails. 7048c0984e5SSebastian Reichel */ 7058c0984e5SSebastian Reichel static inline int bq27xxx_battery_read_fcc(struct bq27xxx_device_info *di) 7068c0984e5SSebastian Reichel { 7078c0984e5SSebastian Reichel return bq27xxx_battery_read_charge(di, BQ27XXX_REG_FCC); 7088c0984e5SSebastian Reichel } 7098c0984e5SSebastian Reichel 7108c0984e5SSebastian Reichel /* 7118c0984e5SSebastian Reichel * Return the Design Capacity in µAh 7128c0984e5SSebastian Reichel * Or < 0 if something fails. 7138c0984e5SSebastian Reichel */ 7148c0984e5SSebastian Reichel static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di) 7158c0984e5SSebastian Reichel { 7168c0984e5SSebastian Reichel int dcap; 7178c0984e5SSebastian Reichel 7188c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 7198c0984e5SSebastian Reichel dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true); 7208c0984e5SSebastian Reichel else 7218c0984e5SSebastian Reichel dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false); 7228c0984e5SSebastian Reichel 7238c0984e5SSebastian Reichel if (dcap < 0) { 7248c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading initial last measured discharge\n"); 7258c0984e5SSebastian Reichel return dcap; 7268c0984e5SSebastian Reichel } 7278c0984e5SSebastian Reichel 7288c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 7298c0984e5SSebastian Reichel dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 7308c0984e5SSebastian Reichel else 7318c0984e5SSebastian Reichel dcap *= 1000; 7328c0984e5SSebastian Reichel 7338c0984e5SSebastian Reichel return dcap; 7348c0984e5SSebastian Reichel } 7358c0984e5SSebastian Reichel 7368c0984e5SSebastian Reichel /* 7378c0984e5SSebastian Reichel * Return the battery Available energy in µWh 7388c0984e5SSebastian Reichel * Or < 0 if something fails. 7398c0984e5SSebastian Reichel */ 7408c0984e5SSebastian Reichel static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di) 7418c0984e5SSebastian Reichel { 7428c0984e5SSebastian Reichel int ae; 7438c0984e5SSebastian Reichel 7448c0984e5SSebastian Reichel ae = bq27xxx_read(di, BQ27XXX_REG_AE, false); 7458c0984e5SSebastian Reichel if (ae < 0) { 7468c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading available energy\n"); 7478c0984e5SSebastian Reichel return ae; 7488c0984e5SSebastian Reichel } 7498c0984e5SSebastian Reichel 7508c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 7518c0984e5SSebastian Reichel ae *= BQ27XXX_POWER_CONSTANT / BQ27XXX_RS; 7528c0984e5SSebastian Reichel else 7538c0984e5SSebastian Reichel ae *= 1000; 7548c0984e5SSebastian Reichel 7558c0984e5SSebastian Reichel return ae; 7568c0984e5SSebastian Reichel } 7578c0984e5SSebastian Reichel 7588c0984e5SSebastian Reichel /* 7598c0984e5SSebastian Reichel * Return the battery temperature in tenths of degree Kelvin 7608c0984e5SSebastian Reichel * Or < 0 if something fails. 7618c0984e5SSebastian Reichel */ 7628c0984e5SSebastian Reichel static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di) 7638c0984e5SSebastian Reichel { 7648c0984e5SSebastian Reichel int temp; 7658c0984e5SSebastian Reichel 7668c0984e5SSebastian Reichel temp = bq27xxx_read(di, BQ27XXX_REG_TEMP, false); 7678c0984e5SSebastian Reichel if (temp < 0) { 7688c0984e5SSebastian Reichel dev_err(di->dev, "error reading temperature\n"); 7698c0984e5SSebastian Reichel return temp; 7708c0984e5SSebastian Reichel } 7718c0984e5SSebastian Reichel 7728c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 7738c0984e5SSebastian Reichel temp = 5 * temp / 2; 7748c0984e5SSebastian Reichel 7758c0984e5SSebastian Reichel return temp; 7768c0984e5SSebastian Reichel } 7778c0984e5SSebastian Reichel 7788c0984e5SSebastian Reichel /* 7798c0984e5SSebastian Reichel * Return the battery Cycle count total 7808c0984e5SSebastian Reichel * Or < 0 if something fails. 7818c0984e5SSebastian Reichel */ 7828c0984e5SSebastian Reichel static int bq27xxx_battery_read_cyct(struct bq27xxx_device_info *di) 7838c0984e5SSebastian Reichel { 7848c0984e5SSebastian Reichel int cyct; 7858c0984e5SSebastian Reichel 7868c0984e5SSebastian Reichel cyct = bq27xxx_read(di, BQ27XXX_REG_CYCT, false); 7878c0984e5SSebastian Reichel if (cyct < 0) 7888c0984e5SSebastian Reichel dev_err(di->dev, "error reading cycle count total\n"); 7898c0984e5SSebastian Reichel 7908c0984e5SSebastian Reichel return cyct; 7918c0984e5SSebastian Reichel } 7928c0984e5SSebastian Reichel 7938c0984e5SSebastian Reichel /* 7948c0984e5SSebastian Reichel * Read a time register. 7958c0984e5SSebastian Reichel * Return < 0 if something fails. 7968c0984e5SSebastian Reichel */ 7978c0984e5SSebastian Reichel static int bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg) 7988c0984e5SSebastian Reichel { 7998c0984e5SSebastian Reichel int tval; 8008c0984e5SSebastian Reichel 8018c0984e5SSebastian Reichel tval = bq27xxx_read(di, reg, false); 8028c0984e5SSebastian Reichel if (tval < 0) { 8038c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading time register %02x: %d\n", 8048c0984e5SSebastian Reichel reg, tval); 8058c0984e5SSebastian Reichel return tval; 8068c0984e5SSebastian Reichel } 8078c0984e5SSebastian Reichel 8088c0984e5SSebastian Reichel if (tval == 65535) 8098c0984e5SSebastian Reichel return -ENODATA; 8108c0984e5SSebastian Reichel 8118c0984e5SSebastian Reichel return tval * 60; 8128c0984e5SSebastian Reichel } 8138c0984e5SSebastian Reichel 8148c0984e5SSebastian Reichel /* 8158c0984e5SSebastian Reichel * Read an average power register. 8168c0984e5SSebastian Reichel * Return < 0 if something fails. 8178c0984e5SSebastian Reichel */ 8188c0984e5SSebastian Reichel static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di) 8198c0984e5SSebastian Reichel { 8208c0984e5SSebastian Reichel int tval; 8218c0984e5SSebastian Reichel 8228c0984e5SSebastian Reichel tval = bq27xxx_read(di, BQ27XXX_REG_AP, false); 8238c0984e5SSebastian Reichel if (tval < 0) { 8248c0984e5SSebastian Reichel dev_err(di->dev, "error reading average power register %02x: %d\n", 8258c0984e5SSebastian Reichel BQ27XXX_REG_AP, tval); 8268c0984e5SSebastian Reichel return tval; 8278c0984e5SSebastian Reichel } 8288c0984e5SSebastian Reichel 8298c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8308c0984e5SSebastian Reichel return (tval * BQ27XXX_POWER_CONSTANT) / BQ27XXX_RS; 8318c0984e5SSebastian Reichel else 8328c0984e5SSebastian Reichel return tval; 8338c0984e5SSebastian Reichel } 8348c0984e5SSebastian Reichel 8358c0984e5SSebastian Reichel /* 8368c0984e5SSebastian Reichel * Returns true if a battery over temperature condition is detected 8378c0984e5SSebastian Reichel */ 8388c0984e5SSebastian Reichel static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags) 8398c0984e5SSebastian Reichel { 840e839a448SChris Lapa switch (di->chip) { 841818e3012SChris Lapa case BQ2750X: 8426da6e4bdSChris Lapa case BQ2751X: 84332833635SChris Lapa case BQ27500: 844bd28177fSChris Lapa case BQ27510G1: 845698a2bf5SChris Lapa case BQ27510G2: 84671375aa7SChris Lapa case BQ27510G3: 847e839a448SChris Lapa case BQ27541: 848e839a448SChris Lapa case BQ27545: 8498c0984e5SSebastian Reichel return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD); 850e839a448SChris Lapa case BQ27530: 851e839a448SChris Lapa case BQ27421: 8528c0984e5SSebastian Reichel return flags & BQ27XXX_FLAG_OT; 853e839a448SChris Lapa default: 8548c0984e5SSebastian Reichel return false; 8558c0984e5SSebastian Reichel } 856e839a448SChris Lapa } 8578c0984e5SSebastian Reichel 8588c0984e5SSebastian Reichel /* 8598c0984e5SSebastian Reichel * Returns true if a battery under temperature condition is detected 8608c0984e5SSebastian Reichel */ 8618c0984e5SSebastian Reichel static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags) 8628c0984e5SSebastian Reichel { 8638c0984e5SSebastian Reichel if (di->chip == BQ27530 || di->chip == BQ27421) 8648c0984e5SSebastian Reichel return flags & BQ27XXX_FLAG_UT; 8658c0984e5SSebastian Reichel 8668c0984e5SSebastian Reichel return false; 8678c0984e5SSebastian Reichel } 8688c0984e5SSebastian Reichel 8698c0984e5SSebastian Reichel /* 8708c0984e5SSebastian Reichel * Returns true if a low state of charge condition is detected 8718c0984e5SSebastian Reichel */ 8728c0984e5SSebastian Reichel static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags) 8738c0984e5SSebastian Reichel { 8748c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8758c0984e5SSebastian Reichel return flags & (BQ27000_FLAG_EDV1 | BQ27000_FLAG_EDVF); 8768c0984e5SSebastian Reichel else 8778c0984e5SSebastian Reichel return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF); 8788c0984e5SSebastian Reichel } 8798c0984e5SSebastian Reichel 8808c0984e5SSebastian Reichel /* 8818c0984e5SSebastian Reichel * Read flag register. 8828c0984e5SSebastian Reichel * Return < 0 if something fails. 8838c0984e5SSebastian Reichel */ 8848c0984e5SSebastian Reichel static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di) 8858c0984e5SSebastian Reichel { 8868c0984e5SSebastian Reichel int flags; 887e4a404a0SH. Nikolaus Schaller bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010; 8888c0984e5SSebastian Reichel 889e4a404a0SH. Nikolaus Schaller flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag); 8908c0984e5SSebastian Reichel if (flags < 0) { 8918c0984e5SSebastian Reichel dev_err(di->dev, "error reading flag register:%d\n", flags); 8928c0984e5SSebastian Reichel return flags; 8938c0984e5SSebastian Reichel } 8948c0984e5SSebastian Reichel 8958c0984e5SSebastian Reichel /* Unlikely but important to return first */ 8968c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_overtemp(di, flags))) 8978c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_OVERHEAT; 8988c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_undertemp(di, flags))) 8998c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_COLD; 9008c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_dead(di, flags))) 9018c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_DEAD; 9028c0984e5SSebastian Reichel 9038c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_GOOD; 9048c0984e5SSebastian Reichel } 9058c0984e5SSebastian Reichel 9068c0984e5SSebastian Reichel void bq27xxx_battery_update(struct bq27xxx_device_info *di) 9078c0984e5SSebastian Reichel { 9088c0984e5SSebastian Reichel struct bq27xxx_reg_cache cache = {0, }; 9098c0984e5SSebastian Reichel bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010; 9108c0984e5SSebastian Reichel bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010; 9118c0984e5SSebastian Reichel 9128c0984e5SSebastian Reichel cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag); 9138c0984e5SSebastian Reichel if ((cache.flags & 0xff) == 0xff) 9148c0984e5SSebastian Reichel cache.flags = -1; /* read error */ 9158c0984e5SSebastian Reichel if (cache.flags >= 0) { 9168c0984e5SSebastian Reichel cache.temperature = bq27xxx_battery_read_temperature(di); 9178c0984e5SSebastian Reichel if (has_ci_flag && (cache.flags & BQ27000_FLAG_CI)) { 9188c0984e5SSebastian Reichel dev_info_once(di->dev, "battery is not calibrated! ignoring capacity values\n"); 9198c0984e5SSebastian Reichel cache.capacity = -ENODATA; 9208c0984e5SSebastian Reichel cache.energy = -ENODATA; 9218c0984e5SSebastian Reichel cache.time_to_empty = -ENODATA; 9228c0984e5SSebastian Reichel cache.time_to_empty_avg = -ENODATA; 9238c0984e5SSebastian Reichel cache.time_to_full = -ENODATA; 9248c0984e5SSebastian Reichel cache.charge_full = -ENODATA; 9258c0984e5SSebastian Reichel cache.health = -ENODATA; 9268c0984e5SSebastian Reichel } else { 9278c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR) 9288c0984e5SSebastian Reichel cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE); 9298c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTECP] != INVALID_REG_ADDR) 9308c0984e5SSebastian Reichel cache.time_to_empty_avg = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTECP); 9318c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTF] != INVALID_REG_ADDR) 9328c0984e5SSebastian Reichel cache.time_to_full = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTF); 9338c0984e5SSebastian Reichel cache.charge_full = bq27xxx_battery_read_fcc(di); 9348c0984e5SSebastian Reichel cache.capacity = bq27xxx_battery_read_soc(di); 9358c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR) 9368c0984e5SSebastian Reichel cache.energy = bq27xxx_battery_read_energy(di); 9378c0984e5SSebastian Reichel cache.health = bq27xxx_battery_read_health(di); 9388c0984e5SSebastian Reichel } 9398c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR) 9408c0984e5SSebastian Reichel cache.cycle_count = bq27xxx_battery_read_cyct(di); 9418c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_AP] != INVALID_REG_ADDR) 9428c0984e5SSebastian Reichel cache.power_avg = bq27xxx_battery_read_pwr_avg(di); 9438c0984e5SSebastian Reichel 9448c0984e5SSebastian Reichel /* We only have to read charge design full once */ 9458c0984e5SSebastian Reichel if (di->charge_design_full <= 0) 9468c0984e5SSebastian Reichel di->charge_design_full = bq27xxx_battery_read_dcap(di); 9478c0984e5SSebastian Reichel } 9488c0984e5SSebastian Reichel 9498c0984e5SSebastian Reichel if (di->cache.capacity != cache.capacity) 9508c0984e5SSebastian Reichel power_supply_changed(di->bat); 9518c0984e5SSebastian Reichel 9528c0984e5SSebastian Reichel if (memcmp(&di->cache, &cache, sizeof(cache)) != 0) 9538c0984e5SSebastian Reichel di->cache = cache; 9548c0984e5SSebastian Reichel 9558c0984e5SSebastian Reichel di->last_update = jiffies; 9568c0984e5SSebastian Reichel } 9578c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_update); 9588c0984e5SSebastian Reichel 9598c0984e5SSebastian Reichel static void bq27xxx_battery_poll(struct work_struct *work) 9608c0984e5SSebastian Reichel { 9618c0984e5SSebastian Reichel struct bq27xxx_device_info *di = 9628c0984e5SSebastian Reichel container_of(work, struct bq27xxx_device_info, 9638c0984e5SSebastian Reichel work.work); 9648c0984e5SSebastian Reichel 9658c0984e5SSebastian Reichel bq27xxx_battery_update(di); 9668c0984e5SSebastian Reichel 9678c0984e5SSebastian Reichel if (poll_interval > 0) 9688c0984e5SSebastian Reichel schedule_delayed_work(&di->work, poll_interval * HZ); 9698c0984e5SSebastian Reichel } 9708c0984e5SSebastian Reichel 9718c0984e5SSebastian Reichel /* 9728c0984e5SSebastian Reichel * Return the battery average current in µA 9738c0984e5SSebastian Reichel * Note that current can be negative signed as well 9748c0984e5SSebastian Reichel * Or 0 if something fails. 9758c0984e5SSebastian Reichel */ 9768c0984e5SSebastian Reichel static int bq27xxx_battery_current(struct bq27xxx_device_info *di, 9778c0984e5SSebastian Reichel union power_supply_propval *val) 9788c0984e5SSebastian Reichel { 9798c0984e5SSebastian Reichel int curr; 9808c0984e5SSebastian Reichel int flags; 9818c0984e5SSebastian Reichel 9828c0984e5SSebastian Reichel curr = bq27xxx_read(di, BQ27XXX_REG_AI, false); 9838c0984e5SSebastian Reichel if (curr < 0) { 9848c0984e5SSebastian Reichel dev_err(di->dev, "error reading current\n"); 9858c0984e5SSebastian Reichel return curr; 9868c0984e5SSebastian Reichel } 9878c0984e5SSebastian Reichel 9888c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 989e4a404a0SH. Nikolaus Schaller flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true); 9908c0984e5SSebastian Reichel if (flags & BQ27000_FLAG_CHGS) { 9918c0984e5SSebastian Reichel dev_dbg(di->dev, "negative current!\n"); 9928c0984e5SSebastian Reichel curr = -curr; 9938c0984e5SSebastian Reichel } 9948c0984e5SSebastian Reichel 9958c0984e5SSebastian Reichel val->intval = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 9968c0984e5SSebastian Reichel } else { 9978c0984e5SSebastian Reichel /* Other gauges return signed value */ 9988c0984e5SSebastian Reichel val->intval = (int)((s16)curr) * 1000; 9998c0984e5SSebastian Reichel } 10008c0984e5SSebastian Reichel 10018c0984e5SSebastian Reichel return 0; 10028c0984e5SSebastian Reichel } 10038c0984e5SSebastian Reichel 10048c0984e5SSebastian Reichel static int bq27xxx_battery_status(struct bq27xxx_device_info *di, 10058c0984e5SSebastian Reichel union power_supply_propval *val) 10068c0984e5SSebastian Reichel { 10078c0984e5SSebastian Reichel int status; 10088c0984e5SSebastian Reichel 10098c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 10108c0984e5SSebastian Reichel if (di->cache.flags & BQ27000_FLAG_FC) 10118c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_FULL; 10128c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_CHGS) 10138c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_CHARGING; 10148c0984e5SSebastian Reichel else if (power_supply_am_i_supplied(di->bat)) 10158c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_NOT_CHARGING; 10168c0984e5SSebastian Reichel else 10178c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_DISCHARGING; 10188c0984e5SSebastian Reichel } else { 10198c0984e5SSebastian Reichel if (di->cache.flags & BQ27XXX_FLAG_FC) 10208c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_FULL; 10218c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_DSC) 10228c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_DISCHARGING; 10238c0984e5SSebastian Reichel else 10248c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_CHARGING; 10258c0984e5SSebastian Reichel } 10268c0984e5SSebastian Reichel 10278c0984e5SSebastian Reichel val->intval = status; 10288c0984e5SSebastian Reichel 10298c0984e5SSebastian Reichel return 0; 10308c0984e5SSebastian Reichel } 10318c0984e5SSebastian Reichel 10328c0984e5SSebastian Reichel static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di, 10338c0984e5SSebastian Reichel union power_supply_propval *val) 10348c0984e5SSebastian Reichel { 10358c0984e5SSebastian Reichel int level; 10368c0984e5SSebastian Reichel 10378c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 10388c0984e5SSebastian Reichel if (di->cache.flags & BQ27000_FLAG_FC) 10398c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; 10408c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_EDV1) 10418c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; 10428c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_EDVF) 10438c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; 10448c0984e5SSebastian Reichel else 10458c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; 10468c0984e5SSebastian Reichel } else { 10478c0984e5SSebastian Reichel if (di->cache.flags & BQ27XXX_FLAG_FC) 10488c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; 10498c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_SOC1) 10508c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; 10518c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_SOCF) 10528c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; 10538c0984e5SSebastian Reichel else 10548c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; 10558c0984e5SSebastian Reichel } 10568c0984e5SSebastian Reichel 10578c0984e5SSebastian Reichel val->intval = level; 10588c0984e5SSebastian Reichel 10598c0984e5SSebastian Reichel return 0; 10608c0984e5SSebastian Reichel } 10618c0984e5SSebastian Reichel 10628c0984e5SSebastian Reichel /* 10638c0984e5SSebastian Reichel * Return the battery Voltage in millivolts 10648c0984e5SSebastian Reichel * Or < 0 if something fails. 10658c0984e5SSebastian Reichel */ 10668c0984e5SSebastian Reichel static int bq27xxx_battery_voltage(struct bq27xxx_device_info *di, 10678c0984e5SSebastian Reichel union power_supply_propval *val) 10688c0984e5SSebastian Reichel { 10698c0984e5SSebastian Reichel int volt; 10708c0984e5SSebastian Reichel 10718c0984e5SSebastian Reichel volt = bq27xxx_read(di, BQ27XXX_REG_VOLT, false); 10728c0984e5SSebastian Reichel if (volt < 0) { 10738c0984e5SSebastian Reichel dev_err(di->dev, "error reading voltage\n"); 10748c0984e5SSebastian Reichel return volt; 10758c0984e5SSebastian Reichel } 10768c0984e5SSebastian Reichel 10778c0984e5SSebastian Reichel val->intval = volt * 1000; 10788c0984e5SSebastian Reichel 10798c0984e5SSebastian Reichel return 0; 10808c0984e5SSebastian Reichel } 10818c0984e5SSebastian Reichel 10828c0984e5SSebastian Reichel static int bq27xxx_simple_value(int value, 10838c0984e5SSebastian Reichel union power_supply_propval *val) 10848c0984e5SSebastian Reichel { 10858c0984e5SSebastian Reichel if (value < 0) 10868c0984e5SSebastian Reichel return value; 10878c0984e5SSebastian Reichel 10888c0984e5SSebastian Reichel val->intval = value; 10898c0984e5SSebastian Reichel 10908c0984e5SSebastian Reichel return 0; 10918c0984e5SSebastian Reichel } 10928c0984e5SSebastian Reichel 10938c0984e5SSebastian Reichel static int bq27xxx_battery_get_property(struct power_supply *psy, 10948c0984e5SSebastian Reichel enum power_supply_property psp, 10958c0984e5SSebastian Reichel union power_supply_propval *val) 10968c0984e5SSebastian Reichel { 10978c0984e5SSebastian Reichel int ret = 0; 10988c0984e5SSebastian Reichel struct bq27xxx_device_info *di = power_supply_get_drvdata(psy); 10998c0984e5SSebastian Reichel 11008c0984e5SSebastian Reichel mutex_lock(&di->lock); 11018c0984e5SSebastian Reichel if (time_is_before_jiffies(di->last_update + 5 * HZ)) { 11028c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 11038c0984e5SSebastian Reichel bq27xxx_battery_poll(&di->work.work); 11048c0984e5SSebastian Reichel } 11058c0984e5SSebastian Reichel mutex_unlock(&di->lock); 11068c0984e5SSebastian Reichel 11078c0984e5SSebastian Reichel if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0) 11088c0984e5SSebastian Reichel return -ENODEV; 11098c0984e5SSebastian Reichel 11108c0984e5SSebastian Reichel switch (psp) { 11118c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_STATUS: 11128c0984e5SSebastian Reichel ret = bq27xxx_battery_status(di, val); 11138c0984e5SSebastian Reichel break; 11148c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_VOLTAGE_NOW: 11158c0984e5SSebastian Reichel ret = bq27xxx_battery_voltage(di, val); 11168c0984e5SSebastian Reichel break; 11178c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_PRESENT: 11188c0984e5SSebastian Reichel val->intval = di->cache.flags < 0 ? 0 : 1; 11198c0984e5SSebastian Reichel break; 11208c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CURRENT_NOW: 11218c0984e5SSebastian Reichel ret = bq27xxx_battery_current(di, val); 11228c0984e5SSebastian Reichel break; 11238c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CAPACITY: 11248c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.capacity, val); 11258c0984e5SSebastian Reichel break; 11268c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CAPACITY_LEVEL: 11278c0984e5SSebastian Reichel ret = bq27xxx_battery_capacity_level(di, val); 11288c0984e5SSebastian Reichel break; 11298c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TEMP: 11308c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.temperature, val); 11318c0984e5SSebastian Reichel if (ret == 0) 11328c0984e5SSebastian Reichel val->intval -= 2731; /* convert decidegree k to c */ 11338c0984e5SSebastian Reichel break; 11348c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: 11358c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_empty, val); 11368c0984e5SSebastian Reichel break; 11378c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: 11388c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_empty_avg, val); 11398c0984e5SSebastian Reichel break; 11408c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: 11418c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_full, val); 11428c0984e5SSebastian Reichel break; 11438c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TECHNOLOGY: 11448c0984e5SSebastian Reichel val->intval = POWER_SUPPLY_TECHNOLOGY_LION; 11458c0984e5SSebastian Reichel break; 11468c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_NOW: 11478c0984e5SSebastian Reichel ret = bq27xxx_simple_value(bq27xxx_battery_read_nac(di), val); 11488c0984e5SSebastian Reichel break; 11498c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_FULL: 11508c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.charge_full, val); 11518c0984e5SSebastian Reichel break; 11528c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: 11538c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->charge_design_full, val); 11548c0984e5SSebastian Reichel break; 11558c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CYCLE_COUNT: 11568c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.cycle_count, val); 11578c0984e5SSebastian Reichel break; 11588c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_ENERGY_NOW: 11598c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.energy, val); 11608c0984e5SSebastian Reichel break; 11618c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_POWER_AVG: 11628c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.power_avg, val); 11638c0984e5SSebastian Reichel break; 11648c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_HEALTH: 11658c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.health, val); 11668c0984e5SSebastian Reichel break; 11678c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_MANUFACTURER: 11688c0984e5SSebastian Reichel val->strval = BQ27XXX_MANUFACTURER; 11698c0984e5SSebastian Reichel break; 11708c0984e5SSebastian Reichel default: 11718c0984e5SSebastian Reichel return -EINVAL; 11728c0984e5SSebastian Reichel } 11738c0984e5SSebastian Reichel 11748c0984e5SSebastian Reichel return ret; 11758c0984e5SSebastian Reichel } 11768c0984e5SSebastian Reichel 11778c0984e5SSebastian Reichel static void bq27xxx_external_power_changed(struct power_supply *psy) 11788c0984e5SSebastian Reichel { 11798c0984e5SSebastian Reichel struct bq27xxx_device_info *di = power_supply_get_drvdata(psy); 11808c0984e5SSebastian Reichel 11818c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 11828c0984e5SSebastian Reichel schedule_delayed_work(&di->work, 0); 11838c0984e5SSebastian Reichel } 11848c0984e5SSebastian Reichel 11858c0984e5SSebastian Reichel int bq27xxx_battery_setup(struct bq27xxx_device_info *di) 11868c0984e5SSebastian Reichel { 11878c0984e5SSebastian Reichel struct power_supply_desc *psy_desc; 11888c0984e5SSebastian Reichel struct power_supply_config psy_cfg = { .drv_data = di, }; 11898c0984e5SSebastian Reichel 11908c0984e5SSebastian Reichel INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll); 11918c0984e5SSebastian Reichel mutex_init(&di->lock); 11928c0984e5SSebastian Reichel di->regs = bq27xxx_regs[di->chip]; 11938c0984e5SSebastian Reichel 11948c0984e5SSebastian Reichel psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL); 11958c0984e5SSebastian Reichel if (!psy_desc) 11968c0984e5SSebastian Reichel return -ENOMEM; 11978c0984e5SSebastian Reichel 11988c0984e5SSebastian Reichel psy_desc->name = di->name; 11998c0984e5SSebastian Reichel psy_desc->type = POWER_SUPPLY_TYPE_BATTERY; 12008c0984e5SSebastian Reichel psy_desc->properties = bq27xxx_battery_props[di->chip].props; 12018c0984e5SSebastian Reichel psy_desc->num_properties = bq27xxx_battery_props[di->chip].size; 12028c0984e5SSebastian Reichel psy_desc->get_property = bq27xxx_battery_get_property; 12038c0984e5SSebastian Reichel psy_desc->external_power_changed = bq27xxx_external_power_changed; 12048c0984e5SSebastian Reichel 12058c0984e5SSebastian Reichel di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg); 12068c0984e5SSebastian Reichel if (IS_ERR(di->bat)) { 12078c0984e5SSebastian Reichel dev_err(di->dev, "failed to register battery\n"); 12088c0984e5SSebastian Reichel return PTR_ERR(di->bat); 12098c0984e5SSebastian Reichel } 12108c0984e5SSebastian Reichel 12118c0984e5SSebastian Reichel dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION); 12128c0984e5SSebastian Reichel 12138c0984e5SSebastian Reichel bq27xxx_battery_update(di); 12148c0984e5SSebastian Reichel 12151d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 12161d72706fSMatt Ranostay list_add(&di->list, &bq27xxx_battery_devices); 12171d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 12181d72706fSMatt Ranostay 12198c0984e5SSebastian Reichel return 0; 12208c0984e5SSebastian Reichel } 12218c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_setup); 12228c0984e5SSebastian Reichel 12238c0984e5SSebastian Reichel void bq27xxx_battery_teardown(struct bq27xxx_device_info *di) 12248c0984e5SSebastian Reichel { 12258c0984e5SSebastian Reichel /* 12268c0984e5SSebastian Reichel * power_supply_unregister call bq27xxx_battery_get_property which 12278c0984e5SSebastian Reichel * call bq27xxx_battery_poll. 12288c0984e5SSebastian Reichel * Make sure that bq27xxx_battery_poll will not call 12298c0984e5SSebastian Reichel * schedule_delayed_work again after unregister (which cause OOPS). 12308c0984e5SSebastian Reichel */ 12318c0984e5SSebastian Reichel poll_interval = 0; 12328c0984e5SSebastian Reichel 12338c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 12348c0984e5SSebastian Reichel 12358c0984e5SSebastian Reichel power_supply_unregister(di->bat); 12368c0984e5SSebastian Reichel 12371d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 12381d72706fSMatt Ranostay list_del(&di->list); 12391d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 12401d72706fSMatt Ranostay 12418c0984e5SSebastian Reichel mutex_destroy(&di->lock); 12428c0984e5SSebastian Reichel } 12438c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown); 12448c0984e5SSebastian Reichel 12458c0984e5SSebastian Reichel static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg, 12468c0984e5SSebastian Reichel bool single) 12478c0984e5SSebastian Reichel { 12488c0984e5SSebastian Reichel struct device *dev = di->dev; 12498c0984e5SSebastian Reichel struct bq27xxx_platform_data *pdata = dev->platform_data; 12508c0984e5SSebastian Reichel unsigned int timeout = 3; 12518c0984e5SSebastian Reichel int upper, lower; 12528c0984e5SSebastian Reichel int temp; 12538c0984e5SSebastian Reichel 12548c0984e5SSebastian Reichel if (!single) { 12558c0984e5SSebastian Reichel /* Make sure the value has not changed in between reading the 12568c0984e5SSebastian Reichel * lower and the upper part */ 12578c0984e5SSebastian Reichel upper = pdata->read(dev, reg + 1); 12588c0984e5SSebastian Reichel do { 12598c0984e5SSebastian Reichel temp = upper; 12608c0984e5SSebastian Reichel if (upper < 0) 12618c0984e5SSebastian Reichel return upper; 12628c0984e5SSebastian Reichel 12638c0984e5SSebastian Reichel lower = pdata->read(dev, reg); 12648c0984e5SSebastian Reichel if (lower < 0) 12658c0984e5SSebastian Reichel return lower; 12668c0984e5SSebastian Reichel 12678c0984e5SSebastian Reichel upper = pdata->read(dev, reg + 1); 12688c0984e5SSebastian Reichel } while (temp != upper && --timeout); 12698c0984e5SSebastian Reichel 12708c0984e5SSebastian Reichel if (timeout == 0) 12718c0984e5SSebastian Reichel return -EIO; 12728c0984e5SSebastian Reichel 12738c0984e5SSebastian Reichel return (upper << 8) | lower; 12748c0984e5SSebastian Reichel } 12758c0984e5SSebastian Reichel 12768c0984e5SSebastian Reichel return pdata->read(dev, reg); 12778c0984e5SSebastian Reichel } 12788c0984e5SSebastian Reichel 12798c0984e5SSebastian Reichel static int bq27xxx_battery_platform_probe(struct platform_device *pdev) 12808c0984e5SSebastian Reichel { 12818c0984e5SSebastian Reichel struct bq27xxx_device_info *di; 12828c0984e5SSebastian Reichel struct bq27xxx_platform_data *pdata = pdev->dev.platform_data; 12838c0984e5SSebastian Reichel 12848c0984e5SSebastian Reichel if (!pdata) { 12858c0984e5SSebastian Reichel dev_err(&pdev->dev, "no platform_data supplied\n"); 12868c0984e5SSebastian Reichel return -EINVAL; 12878c0984e5SSebastian Reichel } 12888c0984e5SSebastian Reichel 12898c0984e5SSebastian Reichel if (!pdata->read) { 12908c0984e5SSebastian Reichel dev_err(&pdev->dev, "no hdq read callback supplied\n"); 12918c0984e5SSebastian Reichel return -EINVAL; 12928c0984e5SSebastian Reichel } 12938c0984e5SSebastian Reichel 12948c0984e5SSebastian Reichel if (!pdata->chip) { 12958c0984e5SSebastian Reichel dev_err(&pdev->dev, "no device supplied\n"); 12968c0984e5SSebastian Reichel return -EINVAL; 12978c0984e5SSebastian Reichel } 12988c0984e5SSebastian Reichel 12998c0984e5SSebastian Reichel di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL); 13008c0984e5SSebastian Reichel if (!di) 13018c0984e5SSebastian Reichel return -ENOMEM; 13028c0984e5SSebastian Reichel 13038c0984e5SSebastian Reichel platform_set_drvdata(pdev, di); 13048c0984e5SSebastian Reichel 13058c0984e5SSebastian Reichel di->dev = &pdev->dev; 13068c0984e5SSebastian Reichel di->chip = pdata->chip; 13078c0984e5SSebastian Reichel di->name = pdata->name ?: dev_name(&pdev->dev); 13088c0984e5SSebastian Reichel di->bus.read = bq27xxx_battery_platform_read; 13098c0984e5SSebastian Reichel 13108c0984e5SSebastian Reichel return bq27xxx_battery_setup(di); 13118c0984e5SSebastian Reichel } 13128c0984e5SSebastian Reichel 13138c0984e5SSebastian Reichel static int bq27xxx_battery_platform_remove(struct platform_device *pdev) 13148c0984e5SSebastian Reichel { 13158c0984e5SSebastian Reichel struct bq27xxx_device_info *di = platform_get_drvdata(pdev); 13168c0984e5SSebastian Reichel 13178c0984e5SSebastian Reichel bq27xxx_battery_teardown(di); 13188c0984e5SSebastian Reichel 13198c0984e5SSebastian Reichel return 0; 13208c0984e5SSebastian Reichel } 13218c0984e5SSebastian Reichel 13228c0984e5SSebastian Reichel static const struct platform_device_id bq27xxx_battery_platform_id_table[] = { 13238c0984e5SSebastian Reichel { "bq27000-battery", }, 13248c0984e5SSebastian Reichel { /* sentinel */ } 13258c0984e5SSebastian Reichel }; 13268c0984e5SSebastian Reichel MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table); 13278c0984e5SSebastian Reichel 13288c0984e5SSebastian Reichel #ifdef CONFIG_OF 13298c0984e5SSebastian Reichel static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = { 13308c0984e5SSebastian Reichel { .compatible = "ti,bq27000" }, 13318c0984e5SSebastian Reichel {}, 13328c0984e5SSebastian Reichel }; 13338c0984e5SSebastian Reichel MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table); 13348c0984e5SSebastian Reichel #endif 13358c0984e5SSebastian Reichel 13368c0984e5SSebastian Reichel static struct platform_driver bq27xxx_battery_platform_driver = { 13378c0984e5SSebastian Reichel .probe = bq27xxx_battery_platform_probe, 13388c0984e5SSebastian Reichel .remove = bq27xxx_battery_platform_remove, 13398c0984e5SSebastian Reichel .driver = { 13408c0984e5SSebastian Reichel .name = "bq27000-battery", 13418c0984e5SSebastian Reichel .of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table), 13428c0984e5SSebastian Reichel }, 13438c0984e5SSebastian Reichel .id_table = bq27xxx_battery_platform_id_table, 13448c0984e5SSebastian Reichel }; 13458c0984e5SSebastian Reichel module_platform_driver(bq27xxx_battery_platform_driver); 13468c0984e5SSebastian Reichel 13478c0984e5SSebastian Reichel MODULE_ALIAS("platform:bq27000-battery"); 13488c0984e5SSebastian Reichel 13498c0984e5SSebastian Reichel MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>"); 13508c0984e5SSebastian Reichel MODULE_DESCRIPTION("BQ27xxx battery monitor driver"); 13518c0984e5SSebastian Reichel MODULE_LICENSE("GPL"); 1352