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 2968f2a813SChris Lapa * http://www.ti.com/product/bq27520-g1 30a5deb9a9SChris Lapa * http://www.ti.com/product/bq27520-g2 31825e915bSChris Lapa * http://www.ti.com/product/bq27520-g3 328c0984e5SSebastian Reichel * http://www.ti.com/product/bq27530-g1 338c0984e5SSebastian Reichel * http://www.ti.com/product/bq27531-g1 348c0984e5SSebastian Reichel * http://www.ti.com/product/bq27541-g1 358c0984e5SSebastian Reichel * http://www.ti.com/product/bq27542-g1 368c0984e5SSebastian Reichel * http://www.ti.com/product/bq27546-g1 378c0984e5SSebastian Reichel * http://www.ti.com/product/bq27742-g1 388c0984e5SSebastian Reichel * http://www.ti.com/product/bq27545-g1 398c0984e5SSebastian Reichel * http://www.ti.com/product/bq27421-g1 408c0984e5SSebastian Reichel * http://www.ti.com/product/bq27425-g1 418c0984e5SSebastian Reichel * http://www.ti.com/product/bq27411-g1 428c0984e5SSebastian Reichel * http://www.ti.com/product/bq27621-g1 438c0984e5SSebastian Reichel */ 448c0984e5SSebastian Reichel 458c0984e5SSebastian Reichel #include <linux/device.h> 468c0984e5SSebastian Reichel #include <linux/module.h> 471d72706fSMatt Ranostay #include <linux/mutex.h> 488c0984e5SSebastian Reichel #include <linux/param.h> 498c0984e5SSebastian Reichel #include <linux/jiffies.h> 508c0984e5SSebastian Reichel #include <linux/workqueue.h> 518c0984e5SSebastian Reichel #include <linux/delay.h> 528c0984e5SSebastian Reichel #include <linux/platform_device.h> 538c0984e5SSebastian Reichel #include <linux/power_supply.h> 548c0984e5SSebastian Reichel #include <linux/slab.h> 558c0984e5SSebastian Reichel #include <linux/of.h> 568c0984e5SSebastian Reichel 578c0984e5SSebastian Reichel #include <linux/power/bq27xxx_battery.h> 588c0984e5SSebastian Reichel 598c0984e5SSebastian Reichel #define DRIVER_VERSION "1.2.0" 608c0984e5SSebastian Reichel 618c0984e5SSebastian Reichel #define BQ27XXX_MANUFACTURER "Texas Instruments" 628c0984e5SSebastian Reichel 638c0984e5SSebastian Reichel /* BQ27XXX Flags */ 648c0984e5SSebastian Reichel #define BQ27XXX_FLAG_DSC BIT(0) 658c0984e5SSebastian Reichel #define BQ27XXX_FLAG_SOCF BIT(1) /* State-of-Charge threshold final */ 668c0984e5SSebastian Reichel #define BQ27XXX_FLAG_SOC1 BIT(2) /* State-of-Charge threshold 1 */ 678c0984e5SSebastian Reichel #define BQ27XXX_FLAG_FC BIT(9) 688c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OTD BIT(14) 698c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OTC BIT(15) 708c0984e5SSebastian Reichel #define BQ27XXX_FLAG_UT BIT(14) 718c0984e5SSebastian Reichel #define BQ27XXX_FLAG_OT BIT(15) 728c0984e5SSebastian Reichel 738c0984e5SSebastian Reichel /* BQ27000 has different layout for Flags register */ 748c0984e5SSebastian Reichel #define BQ27000_FLAG_EDVF BIT(0) /* Final End-of-Discharge-Voltage flag */ 758c0984e5SSebastian Reichel #define BQ27000_FLAG_EDV1 BIT(1) /* First End-of-Discharge-Voltage flag */ 768c0984e5SSebastian Reichel #define BQ27000_FLAG_CI BIT(4) /* Capacity Inaccurate flag */ 778c0984e5SSebastian Reichel #define BQ27000_FLAG_FC BIT(5) 788c0984e5SSebastian Reichel #define BQ27000_FLAG_CHGS BIT(7) /* Charge state flag */ 798c0984e5SSebastian Reichel 808c0984e5SSebastian Reichel #define BQ27XXX_RS (20) /* Resistor sense mOhm */ 818c0984e5SSebastian Reichel #define BQ27XXX_POWER_CONSTANT (29200) /* 29.2 µV^2 * 1000 */ 828c0984e5SSebastian Reichel #define BQ27XXX_CURRENT_CONSTANT (3570) /* 3.57 µV * 1000 */ 838c0984e5SSebastian Reichel 848c0984e5SSebastian Reichel #define INVALID_REG_ADDR 0xff 858c0984e5SSebastian Reichel 868c0984e5SSebastian Reichel /* 878c0984e5SSebastian Reichel * bq27xxx_reg_index - Register names 888c0984e5SSebastian Reichel * 898c0984e5SSebastian Reichel * These are indexes into a device's register mapping array. 908c0984e5SSebastian Reichel */ 918c0984e5SSebastian Reichel 928c0984e5SSebastian Reichel enum bq27xxx_reg_index { 938c0984e5SSebastian Reichel BQ27XXX_REG_CTRL = 0, /* Control */ 948c0984e5SSebastian Reichel BQ27XXX_REG_TEMP, /* Temperature */ 958c0984e5SSebastian Reichel BQ27XXX_REG_INT_TEMP, /* Internal Temperature */ 968c0984e5SSebastian Reichel BQ27XXX_REG_VOLT, /* Voltage */ 978c0984e5SSebastian Reichel BQ27XXX_REG_AI, /* Average Current */ 988c0984e5SSebastian Reichel BQ27XXX_REG_FLAGS, /* Flags */ 998c0984e5SSebastian Reichel BQ27XXX_REG_TTE, /* Time-to-Empty */ 1008c0984e5SSebastian Reichel BQ27XXX_REG_TTF, /* Time-to-Full */ 1018c0984e5SSebastian Reichel BQ27XXX_REG_TTES, /* Time-to-Empty Standby */ 1028c0984e5SSebastian Reichel BQ27XXX_REG_TTECP, /* Time-to-Empty at Constant Power */ 1038c0984e5SSebastian Reichel BQ27XXX_REG_NAC, /* Nominal Available Capacity */ 1048c0984e5SSebastian Reichel BQ27XXX_REG_FCC, /* Full Charge Capacity */ 1058c0984e5SSebastian Reichel BQ27XXX_REG_CYCT, /* Cycle Count */ 1068c0984e5SSebastian Reichel BQ27XXX_REG_AE, /* Available Energy */ 1078c0984e5SSebastian Reichel BQ27XXX_REG_SOC, /* State-of-Charge */ 1088c0984e5SSebastian Reichel BQ27XXX_REG_DCAP, /* Design Capacity */ 1098c0984e5SSebastian Reichel BQ27XXX_REG_AP, /* Average Power */ 1108c0984e5SSebastian Reichel BQ27XXX_REG_MAX, /* sentinel */ 1118c0984e5SSebastian Reichel }; 1128c0984e5SSebastian Reichel 1138c0984e5SSebastian Reichel /* Register mappings */ 1148c0984e5SSebastian Reichel static u8 bq27xxx_regs[][BQ27XXX_REG_MAX] = { 1158c0984e5SSebastian Reichel [BQ27000] = { 1168c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1178c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1188c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 1198c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1208c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1218c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1228c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1238c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = 0x18, 1248c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1c, 1258c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = 0x26, 1268c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1278c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1288c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1298c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = 0x22, 1308c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x0b, 1318c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x76, 1328c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 1338c0984e5SSebastian Reichel }, 1348c0984e5SSebastian Reichel [BQ27010] = { 1358c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1368c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1378c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 1388c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1398c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1408c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1418c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1428c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = 0x18, 1438c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1c, 1448c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = 0x26, 1458c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1468c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1478c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1488c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1498c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x0b, 1508c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x76, 1518c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1528c0984e5SSebastian Reichel }, 153818e3012SChris Lapa [BQ2750X] = { 1548c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 1558c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 1568c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 1578c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 1588c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 1598c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 1608c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 1618c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 1628c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = 0x1a, 1638c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 1648c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 1658c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 1668c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 1678c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1688c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 1698c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 1708c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1718c0984e5SSebastian Reichel }, 1726da6e4bdSChris Lapa [BQ2751X] = { 1733bee9ea1SAndrew F. Davis [BQ27XXX_REG_CTRL] = 0x00, 1743bee9ea1SAndrew F. Davis [BQ27XXX_REG_TEMP] = 0x06, 1753bee9ea1SAndrew F. Davis [BQ27XXX_REG_INT_TEMP] = 0x28, 1763bee9ea1SAndrew F. Davis [BQ27XXX_REG_VOLT] = 0x08, 1773bee9ea1SAndrew F. Davis [BQ27XXX_REG_AI] = 0x14, 1783bee9ea1SAndrew F. Davis [BQ27XXX_REG_FLAGS] = 0x0a, 1793bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTE] = 0x16, 1803bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 1813bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTES] = 0x1a, 1823bee9ea1SAndrew F. Davis [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 1833bee9ea1SAndrew F. Davis [BQ27XXX_REG_NAC] = 0x0c, 1843bee9ea1SAndrew F. Davis [BQ27XXX_REG_FCC] = 0x12, 1853bee9ea1SAndrew F. Davis [BQ27XXX_REG_CYCT] = 0x1e, 1863bee9ea1SAndrew F. Davis [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 1873bee9ea1SAndrew F. Davis [BQ27XXX_REG_SOC] = 0x20, 1883bee9ea1SAndrew F. Davis [BQ27XXX_REG_DCAP] = 0x2e, 1893bee9ea1SAndrew F. Davis [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 1903bee9ea1SAndrew F. Davis }, 19132833635SChris Lapa [BQ27500] = { 19232833635SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 19332833635SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 19432833635SChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 19532833635SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 19632833635SChris Lapa [BQ27XXX_REG_AI] = 0x14, 19732833635SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 19832833635SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 19932833635SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 20032833635SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 20132833635SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 20232833635SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 20332833635SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 20432833635SChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 20532833635SChris Lapa [BQ27XXX_REG_AE] = 0x22, 20632833635SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 20732833635SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 20832833635SChris Lapa [BQ27XXX_REG_AP] = 0x24, 20932833635SChris Lapa }, 210bd28177fSChris Lapa [BQ27510G1] = { 211bd28177fSChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 212bd28177fSChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 213bd28177fSChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 214bd28177fSChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 215bd28177fSChris Lapa [BQ27XXX_REG_AI] = 0x14, 216bd28177fSChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 217bd28177fSChris Lapa [BQ27XXX_REG_TTE] = 0x16, 218bd28177fSChris Lapa [BQ27XXX_REG_TTF] = 0x18, 219bd28177fSChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 220bd28177fSChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 221bd28177fSChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 222bd28177fSChris Lapa [BQ27XXX_REG_FCC] = 0x12, 223bd28177fSChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 224bd28177fSChris Lapa [BQ27XXX_REG_AE] = 0x22, 225bd28177fSChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 226bd28177fSChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 227bd28177fSChris Lapa [BQ27XXX_REG_AP] = 0x24, 228bd28177fSChris Lapa }, 229698a2bf5SChris Lapa [BQ27510G2] = { 230698a2bf5SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 231698a2bf5SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 232698a2bf5SChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 233698a2bf5SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 234698a2bf5SChris Lapa [BQ27XXX_REG_AI] = 0x14, 235698a2bf5SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 236698a2bf5SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 237698a2bf5SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 238698a2bf5SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 239698a2bf5SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 240698a2bf5SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 241698a2bf5SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 242698a2bf5SChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 243698a2bf5SChris Lapa [BQ27XXX_REG_AE] = 0x22, 244698a2bf5SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 245698a2bf5SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 246698a2bf5SChris Lapa [BQ27XXX_REG_AP] = 0x24, 247698a2bf5SChris Lapa }, 24871375aa7SChris Lapa [BQ27510G3] = { 24971375aa7SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 25071375aa7SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 25171375aa7SChris Lapa [BQ27XXX_REG_INT_TEMP] = 0x28, 25271375aa7SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 25371375aa7SChris Lapa [BQ27XXX_REG_AI] = 0x14, 25471375aa7SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 25571375aa7SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 25671375aa7SChris Lapa [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 25771375aa7SChris Lapa [BQ27XXX_REG_TTES] = 0x1a, 25871375aa7SChris Lapa [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 25971375aa7SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 26071375aa7SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 26171375aa7SChris Lapa [BQ27XXX_REG_CYCT] = 0x1e, 26271375aa7SChris Lapa [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 26371375aa7SChris Lapa [BQ27XXX_REG_SOC] = 0x20, 26471375aa7SChris Lapa [BQ27XXX_REG_DCAP] = 0x2e, 26571375aa7SChris Lapa [BQ27XXX_REG_AP] = INVALID_REG_ADDR, 26671375aa7SChris Lapa }, 26768f2a813SChris Lapa [BQ27520G1] = { 26868f2a813SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 26968f2a813SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 27068f2a813SChris Lapa [BQ27XXX_REG_INT_TEMP] = INVALID_REG_ADDR, 27168f2a813SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 27268f2a813SChris Lapa [BQ27XXX_REG_AI] = 0x14, 27368f2a813SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 27468f2a813SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 27568f2a813SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 27668f2a813SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 27768f2a813SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 27868f2a813SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 27968f2a813SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 28068f2a813SChris Lapa [BQ27XXX_REG_CYCT] = INVALID_REG_ADDR, 28168f2a813SChris Lapa [BQ27XXX_REG_AE] = 0x22, 28268f2a813SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 28368f2a813SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 28468f2a813SChris Lapa [BQ27XXX_REG_AP] = 0x24, 28568f2a813SChris Lapa }, 286a5deb9a9SChris Lapa [BQ27520G2] = { 287a5deb9a9SChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 288a5deb9a9SChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 289a5deb9a9SChris Lapa [BQ27XXX_REG_INT_TEMP] = 0x36, 290a5deb9a9SChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 291a5deb9a9SChris Lapa [BQ27XXX_REG_AI] = 0x14, 292a5deb9a9SChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 293a5deb9a9SChris Lapa [BQ27XXX_REG_TTE] = 0x16, 294a5deb9a9SChris Lapa [BQ27XXX_REG_TTF] = 0x18, 295a5deb9a9SChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 296a5deb9a9SChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 297a5deb9a9SChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 298a5deb9a9SChris Lapa [BQ27XXX_REG_FCC] = 0x12, 299a5deb9a9SChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 300a5deb9a9SChris Lapa [BQ27XXX_REG_AE] = 0x22, 301a5deb9a9SChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 302a5deb9a9SChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 303a5deb9a9SChris Lapa [BQ27XXX_REG_AP] = 0x24, 304a5deb9a9SChris Lapa }, 305825e915bSChris Lapa [BQ27520G3] = { 306825e915bSChris Lapa [BQ27XXX_REG_CTRL] = 0x00, 307825e915bSChris Lapa [BQ27XXX_REG_TEMP] = 0x06, 308825e915bSChris Lapa [BQ27XXX_REG_INT_TEMP] = 0x36, 309825e915bSChris Lapa [BQ27XXX_REG_VOLT] = 0x08, 310825e915bSChris Lapa [BQ27XXX_REG_AI] = 0x14, 311825e915bSChris Lapa [BQ27XXX_REG_FLAGS] = 0x0a, 312825e915bSChris Lapa [BQ27XXX_REG_TTE] = 0x16, 313825e915bSChris Lapa [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 314825e915bSChris Lapa [BQ27XXX_REG_TTES] = 0x1c, 315825e915bSChris Lapa [BQ27XXX_REG_TTECP] = 0x26, 316825e915bSChris Lapa [BQ27XXX_REG_NAC] = 0x0c, 317825e915bSChris Lapa [BQ27XXX_REG_FCC] = 0x12, 318825e915bSChris Lapa [BQ27XXX_REG_CYCT] = 0x2a, 319825e915bSChris Lapa [BQ27XXX_REG_AE] = 0x22, 320825e915bSChris Lapa [BQ27XXX_REG_SOC] = 0x2c, 321825e915bSChris Lapa [BQ27XXX_REG_DCAP] = 0x3c, 322825e915bSChris Lapa [BQ27XXX_REG_AP] = 0x24, 323825e915bSChris Lapa }, 3248c0984e5SSebastian Reichel [BQ27530] = { 3258c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3268c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 3278c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x32, 3288c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 3298c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 3308c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 3318c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 3328c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3338c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3348c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3358c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 3368c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 3378c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 3388c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3398c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 3408c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR, 3418c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 3428c0984e5SSebastian Reichel }, 3438c0984e5SSebastian Reichel [BQ27541] = { 3448c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3458c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 3468c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 3478c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 3488c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 3498c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 3508c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 3518c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3528c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3538c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3548c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 3558c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 3568c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 3578c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3588c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 3598c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 3608c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 3618c0984e5SSebastian Reichel }, 3628c0984e5SSebastian Reichel [BQ27545] = { 3638c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3648c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x06, 3658c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x28, 3668c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x08, 3678c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x14, 3688c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x0a, 3698c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = 0x16, 3708c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3718c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3728c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3738c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x0c, 3748c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x12, 3758c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = 0x2a, 3768c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3778c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x2c, 3788c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = INVALID_REG_ADDR, 3798c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x24, 3808c0984e5SSebastian Reichel }, 3818c0984e5SSebastian Reichel [BQ27421] = { 3828c0984e5SSebastian Reichel [BQ27XXX_REG_CTRL] = 0x00, 3838c0984e5SSebastian Reichel [BQ27XXX_REG_TEMP] = 0x02, 3848c0984e5SSebastian Reichel [BQ27XXX_REG_INT_TEMP] = 0x1e, 3858c0984e5SSebastian Reichel [BQ27XXX_REG_VOLT] = 0x04, 3868c0984e5SSebastian Reichel [BQ27XXX_REG_AI] = 0x10, 3878c0984e5SSebastian Reichel [BQ27XXX_REG_FLAGS] = 0x06, 3888c0984e5SSebastian Reichel [BQ27XXX_REG_TTE] = INVALID_REG_ADDR, 3898c0984e5SSebastian Reichel [BQ27XXX_REG_TTF] = INVALID_REG_ADDR, 3908c0984e5SSebastian Reichel [BQ27XXX_REG_TTES] = INVALID_REG_ADDR, 3918c0984e5SSebastian Reichel [BQ27XXX_REG_TTECP] = INVALID_REG_ADDR, 3928c0984e5SSebastian Reichel [BQ27XXX_REG_NAC] = 0x08, 3938c0984e5SSebastian Reichel [BQ27XXX_REG_FCC] = 0x0e, 3948c0984e5SSebastian Reichel [BQ27XXX_REG_CYCT] = INVALID_REG_ADDR, 3958c0984e5SSebastian Reichel [BQ27XXX_REG_AE] = INVALID_REG_ADDR, 3968c0984e5SSebastian Reichel [BQ27XXX_REG_SOC] = 0x1c, 3978c0984e5SSebastian Reichel [BQ27XXX_REG_DCAP] = 0x3c, 3988c0984e5SSebastian Reichel [BQ27XXX_REG_AP] = 0x18, 3998c0984e5SSebastian Reichel }, 4008c0984e5SSebastian Reichel }; 4018c0984e5SSebastian Reichel 4028c0984e5SSebastian Reichel static enum power_supply_property bq27000_battery_props[] = { 4038c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 4048c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 4058c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 4068c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 4078c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 4088c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 4098c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 4108c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 4118c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 4128c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 4138c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 4148c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 4158c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 4168c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 4178c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 4188c0984e5SSebastian Reichel POWER_SUPPLY_PROP_ENERGY_NOW, 4198c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 4208c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 4218c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 4228c0984e5SSebastian Reichel }; 4238c0984e5SSebastian Reichel 4248c0984e5SSebastian Reichel static enum power_supply_property bq27010_battery_props[] = { 4258c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 4268c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 4278c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 4288c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 4298c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 4308c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 4318c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 4328c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 4338c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, 4348c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 4358c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 4368c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 4378c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 4388c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 4398c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 4408c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 4418c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 4428c0984e5SSebastian Reichel }; 4438c0984e5SSebastian Reichel 444818e3012SChris Lapa static enum power_supply_property bq2750x_battery_props[] = { 4458c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 4468c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 4478c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 4488c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 4498c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 4508c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 4518c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 4528c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 4538c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 4548c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 4558c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 4568c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 4578c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 4588c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 4598c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 4608c0984e5SSebastian Reichel }; 4618c0984e5SSebastian Reichel 4626da6e4bdSChris Lapa static enum power_supply_property bq2751x_battery_props[] = { 4633bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_STATUS, 4643bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_PRESENT, 4653bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_VOLTAGE_NOW, 4663bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CURRENT_NOW, 4673bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CAPACITY, 4683bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CAPACITY_LEVEL, 4693bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TEMP, 4703bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 4713bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_TECHNOLOGY, 4723bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_FULL, 4733bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_NOW, 4743bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 4753bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_CYCLE_COUNT, 4763bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_HEALTH, 4773bee9ea1SAndrew F. Davis POWER_SUPPLY_PROP_MANUFACTURER, 4783bee9ea1SAndrew F. Davis }; 4793bee9ea1SAndrew F. Davis 48032833635SChris Lapa static enum power_supply_property bq27500_battery_props[] = { 48132833635SChris Lapa POWER_SUPPLY_PROP_STATUS, 48232833635SChris Lapa POWER_SUPPLY_PROP_PRESENT, 48332833635SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 48432833635SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 48532833635SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 48632833635SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 48732833635SChris Lapa POWER_SUPPLY_PROP_TEMP, 48832833635SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 48932833635SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 49032833635SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 49132833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 49232833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 49332833635SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 49432833635SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 49532833635SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 49632833635SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 49732833635SChris Lapa POWER_SUPPLY_PROP_HEALTH, 49832833635SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 49932833635SChris Lapa }; 50032833635SChris Lapa 501bd28177fSChris Lapa static enum power_supply_property bq27510g1_battery_props[] = { 502bd28177fSChris Lapa POWER_SUPPLY_PROP_STATUS, 503bd28177fSChris Lapa POWER_SUPPLY_PROP_PRESENT, 504bd28177fSChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 505bd28177fSChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 506bd28177fSChris Lapa POWER_SUPPLY_PROP_CAPACITY, 507bd28177fSChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 508bd28177fSChris Lapa POWER_SUPPLY_PROP_TEMP, 509bd28177fSChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 510bd28177fSChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 511bd28177fSChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 512bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 513bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 514bd28177fSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 515bd28177fSChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 516bd28177fSChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 517bd28177fSChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 518bd28177fSChris Lapa POWER_SUPPLY_PROP_HEALTH, 519bd28177fSChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 520bd28177fSChris Lapa }; 521bd28177fSChris Lapa 522698a2bf5SChris Lapa static enum power_supply_property bq27510g2_battery_props[] = { 523698a2bf5SChris Lapa POWER_SUPPLY_PROP_STATUS, 524698a2bf5SChris Lapa POWER_SUPPLY_PROP_PRESENT, 525698a2bf5SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 526698a2bf5SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 527698a2bf5SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 528698a2bf5SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 529698a2bf5SChris Lapa POWER_SUPPLY_PROP_TEMP, 530698a2bf5SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 531698a2bf5SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 532698a2bf5SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 533698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 534698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 535698a2bf5SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 536698a2bf5SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 537698a2bf5SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 538698a2bf5SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 539698a2bf5SChris Lapa POWER_SUPPLY_PROP_HEALTH, 540698a2bf5SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 541698a2bf5SChris Lapa }; 542698a2bf5SChris Lapa 54371375aa7SChris Lapa static enum power_supply_property bq27510g3_battery_props[] = { 54471375aa7SChris Lapa POWER_SUPPLY_PROP_STATUS, 54571375aa7SChris Lapa POWER_SUPPLY_PROP_PRESENT, 54671375aa7SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 54771375aa7SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 54871375aa7SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 54971375aa7SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 55071375aa7SChris Lapa POWER_SUPPLY_PROP_TEMP, 55171375aa7SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 55271375aa7SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 55371375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 55471375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 55571375aa7SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 55671375aa7SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 55771375aa7SChris Lapa POWER_SUPPLY_PROP_HEALTH, 55871375aa7SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 55971375aa7SChris Lapa }; 56071375aa7SChris Lapa 56168f2a813SChris Lapa static enum power_supply_property bq27520g1_battery_props[] = { 56268f2a813SChris Lapa POWER_SUPPLY_PROP_STATUS, 56368f2a813SChris Lapa POWER_SUPPLY_PROP_PRESENT, 56468f2a813SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 56568f2a813SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 56668f2a813SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 56768f2a813SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 56868f2a813SChris Lapa POWER_SUPPLY_PROP_TEMP, 56968f2a813SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 57068f2a813SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 57168f2a813SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 57268f2a813SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 57368f2a813SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 57468f2a813SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 57568f2a813SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 57668f2a813SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 57768f2a813SChris Lapa POWER_SUPPLY_PROP_HEALTH, 57868f2a813SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 57968f2a813SChris Lapa }; 58068f2a813SChris Lapa 581a5deb9a9SChris Lapa static enum power_supply_property bq27520g2_battery_props[] = { 582a5deb9a9SChris Lapa POWER_SUPPLY_PROP_STATUS, 583a5deb9a9SChris Lapa POWER_SUPPLY_PROP_PRESENT, 584a5deb9a9SChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 585a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 586a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CAPACITY, 587a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 588a5deb9a9SChris Lapa POWER_SUPPLY_PROP_TEMP, 589a5deb9a9SChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 590a5deb9a9SChris Lapa POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, 591a5deb9a9SChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 592a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 593a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 594a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 595a5deb9a9SChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 596a5deb9a9SChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 597a5deb9a9SChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 598a5deb9a9SChris Lapa POWER_SUPPLY_PROP_HEALTH, 599a5deb9a9SChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 600a5deb9a9SChris Lapa }; 601a5deb9a9SChris Lapa 602825e915bSChris Lapa static enum power_supply_property bq27520g3_battery_props[] = { 603825e915bSChris Lapa POWER_SUPPLY_PROP_STATUS, 604825e915bSChris Lapa POWER_SUPPLY_PROP_PRESENT, 605825e915bSChris Lapa POWER_SUPPLY_PROP_VOLTAGE_NOW, 606825e915bSChris Lapa POWER_SUPPLY_PROP_CURRENT_NOW, 607825e915bSChris Lapa POWER_SUPPLY_PROP_CAPACITY, 608825e915bSChris Lapa POWER_SUPPLY_PROP_CAPACITY_LEVEL, 609825e915bSChris Lapa POWER_SUPPLY_PROP_TEMP, 610825e915bSChris Lapa POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 611825e915bSChris Lapa POWER_SUPPLY_PROP_TECHNOLOGY, 612825e915bSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL, 613825e915bSChris Lapa POWER_SUPPLY_PROP_CHARGE_NOW, 614825e915bSChris Lapa POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 615825e915bSChris Lapa POWER_SUPPLY_PROP_CYCLE_COUNT, 616825e915bSChris Lapa POWER_SUPPLY_PROP_ENERGY_NOW, 617825e915bSChris Lapa POWER_SUPPLY_PROP_POWER_AVG, 618825e915bSChris Lapa POWER_SUPPLY_PROP_HEALTH, 619825e915bSChris Lapa POWER_SUPPLY_PROP_MANUFACTURER, 620825e915bSChris Lapa }; 621825e915bSChris Lapa 6228c0984e5SSebastian Reichel static enum power_supply_property bq27530_battery_props[] = { 6238c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 6248c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 6258c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 6268c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 6278c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 6288c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 6298c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 6308c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 6318c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 6328c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 6338c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 6348c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 6358c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 6368c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 6378c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 6388c0984e5SSebastian Reichel }; 6398c0984e5SSebastian Reichel 6408c0984e5SSebastian Reichel static enum power_supply_property bq27541_battery_props[] = { 6418c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 6428c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 6438c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 6448c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 6458c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 6468c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 6478c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 6488c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 6498c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 6508c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 6518c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 6528c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 6538c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 6548c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 6558c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 6568c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 6578c0984e5SSebastian Reichel }; 6588c0984e5SSebastian Reichel 6598c0984e5SSebastian Reichel static enum power_supply_property bq27545_battery_props[] = { 6608c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 6618c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 6628c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 6638c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 6648c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 6658c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 6668c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 6678c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, 6688c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 6698c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 6708c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 6718c0984e5SSebastian Reichel POWER_SUPPLY_PROP_HEALTH, 6728c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CYCLE_COUNT, 6738c0984e5SSebastian Reichel POWER_SUPPLY_PROP_POWER_AVG, 6748c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 6758c0984e5SSebastian Reichel }; 6768c0984e5SSebastian Reichel 6778c0984e5SSebastian Reichel static enum power_supply_property bq27421_battery_props[] = { 6788c0984e5SSebastian Reichel POWER_SUPPLY_PROP_STATUS, 6798c0984e5SSebastian Reichel POWER_SUPPLY_PROP_PRESENT, 6808c0984e5SSebastian Reichel POWER_SUPPLY_PROP_VOLTAGE_NOW, 6818c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CURRENT_NOW, 6828c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY, 6838c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CAPACITY_LEVEL, 6848c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TEMP, 6858c0984e5SSebastian Reichel POWER_SUPPLY_PROP_TECHNOLOGY, 6868c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL, 6878c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_NOW, 6888c0984e5SSebastian Reichel POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, 6898c0984e5SSebastian Reichel POWER_SUPPLY_PROP_MANUFACTURER, 6908c0984e5SSebastian Reichel }; 6918c0984e5SSebastian Reichel 6928c0984e5SSebastian Reichel #define BQ27XXX_PROP(_id, _prop) \ 6938c0984e5SSebastian Reichel [_id] = { \ 6948c0984e5SSebastian Reichel .props = _prop, \ 6958c0984e5SSebastian Reichel .size = ARRAY_SIZE(_prop), \ 6968c0984e5SSebastian Reichel } 6978c0984e5SSebastian Reichel 6988c0984e5SSebastian Reichel static struct { 6998c0984e5SSebastian Reichel enum power_supply_property *props; 7008c0984e5SSebastian Reichel size_t size; 7018c0984e5SSebastian Reichel } bq27xxx_battery_props[] = { 7028c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27000, bq27000_battery_props), 7038c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27010, bq27010_battery_props), 704818e3012SChris Lapa BQ27XXX_PROP(BQ2750X, bq2750x_battery_props), 7056da6e4bdSChris Lapa BQ27XXX_PROP(BQ2751X, bq2751x_battery_props), 70632833635SChris Lapa BQ27XXX_PROP(BQ27500, bq27500_battery_props), 707bd28177fSChris Lapa BQ27XXX_PROP(BQ27510G1, bq27510g1_battery_props), 708698a2bf5SChris Lapa BQ27XXX_PROP(BQ27510G2, bq27510g2_battery_props), 70971375aa7SChris Lapa BQ27XXX_PROP(BQ27510G3, bq27510g3_battery_props), 71068f2a813SChris Lapa BQ27XXX_PROP(BQ27520G1, bq27520g1_battery_props), 711a5deb9a9SChris Lapa BQ27XXX_PROP(BQ27520G2, bq27520g2_battery_props), 712825e915bSChris Lapa BQ27XXX_PROP(BQ27520G3, bq27520g3_battery_props), 7138c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27530, bq27530_battery_props), 7148c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27541, bq27541_battery_props), 7158c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27545, bq27545_battery_props), 7168c0984e5SSebastian Reichel BQ27XXX_PROP(BQ27421, bq27421_battery_props), 7178c0984e5SSebastian Reichel }; 7188c0984e5SSebastian Reichel 7191d72706fSMatt Ranostay static DEFINE_MUTEX(bq27xxx_list_lock); 7201d72706fSMatt Ranostay static LIST_HEAD(bq27xxx_battery_devices); 7211d72706fSMatt Ranostay 7221d72706fSMatt Ranostay static int poll_interval_param_set(const char *val, const struct kernel_param *kp) 7231d72706fSMatt Ranostay { 7241d72706fSMatt Ranostay struct bq27xxx_device_info *di; 725950b6c2dSMatt Ranostay unsigned int prev_val = *(unsigned int *) kp->arg; 7261d72706fSMatt Ranostay int ret; 7271d72706fSMatt Ranostay 7281d72706fSMatt Ranostay ret = param_set_uint(val, kp); 729950b6c2dSMatt Ranostay if (ret < 0 || prev_val == *(unsigned int *) kp->arg) 7301d72706fSMatt Ranostay return ret; 7311d72706fSMatt Ranostay 7321d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 7331d72706fSMatt Ranostay list_for_each_entry(di, &bq27xxx_battery_devices, list) { 7341d72706fSMatt Ranostay cancel_delayed_work_sync(&di->work); 7351d72706fSMatt Ranostay schedule_delayed_work(&di->work, 0); 7361d72706fSMatt Ranostay } 7371d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 7381d72706fSMatt Ranostay 7391d72706fSMatt Ranostay return ret; 7401d72706fSMatt Ranostay } 7411d72706fSMatt Ranostay 7421d72706fSMatt Ranostay static const struct kernel_param_ops param_ops_poll_interval = { 7431d72706fSMatt Ranostay .get = param_get_uint, 7441d72706fSMatt Ranostay .set = poll_interval_param_set, 7451d72706fSMatt Ranostay }; 7461d72706fSMatt Ranostay 7478c0984e5SSebastian Reichel static unsigned int poll_interval = 360; 7481d72706fSMatt Ranostay module_param_cb(poll_interval, ¶m_ops_poll_interval, &poll_interval, 0644); 7498c0984e5SSebastian Reichel MODULE_PARM_DESC(poll_interval, 7508c0984e5SSebastian Reichel "battery poll interval in seconds - 0 disables polling"); 7518c0984e5SSebastian Reichel 7528c0984e5SSebastian Reichel /* 7538c0984e5SSebastian Reichel * Common code for BQ27xxx devices 7548c0984e5SSebastian Reichel */ 7558c0984e5SSebastian Reichel 7568c0984e5SSebastian Reichel static inline int bq27xxx_read(struct bq27xxx_device_info *di, int reg_index, 7578c0984e5SSebastian Reichel bool single) 7588c0984e5SSebastian Reichel { 7598c0984e5SSebastian Reichel /* Reports EINVAL for invalid/missing registers */ 7608c0984e5SSebastian Reichel if (!di || di->regs[reg_index] == INVALID_REG_ADDR) 7618c0984e5SSebastian Reichel return -EINVAL; 7628c0984e5SSebastian Reichel 7638c0984e5SSebastian Reichel return di->bus.read(di, di->regs[reg_index], single); 7648c0984e5SSebastian Reichel } 7658c0984e5SSebastian Reichel 7668c0984e5SSebastian Reichel /* 7678c0984e5SSebastian Reichel * Return the battery State-of-Charge 7688c0984e5SSebastian Reichel * Or < 0 if something fails. 7698c0984e5SSebastian Reichel */ 7708c0984e5SSebastian Reichel static int bq27xxx_battery_read_soc(struct bq27xxx_device_info *di) 7718c0984e5SSebastian Reichel { 7728c0984e5SSebastian Reichel int soc; 7738c0984e5SSebastian Reichel 7748c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 7758c0984e5SSebastian Reichel soc = bq27xxx_read(di, BQ27XXX_REG_SOC, true); 7768c0984e5SSebastian Reichel else 7778c0984e5SSebastian Reichel soc = bq27xxx_read(di, BQ27XXX_REG_SOC, false); 7788c0984e5SSebastian Reichel 7798c0984e5SSebastian Reichel if (soc < 0) 7808c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading State-of-Charge\n"); 7818c0984e5SSebastian Reichel 7828c0984e5SSebastian Reichel return soc; 7838c0984e5SSebastian Reichel } 7848c0984e5SSebastian Reichel 7858c0984e5SSebastian Reichel /* 7868c0984e5SSebastian Reichel * Return a battery charge value in µAh 7878c0984e5SSebastian Reichel * Or < 0 if something fails. 7888c0984e5SSebastian Reichel */ 7898c0984e5SSebastian Reichel static int bq27xxx_battery_read_charge(struct bq27xxx_device_info *di, u8 reg) 7908c0984e5SSebastian Reichel { 7918c0984e5SSebastian Reichel int charge; 7928c0984e5SSebastian Reichel 7938c0984e5SSebastian Reichel charge = bq27xxx_read(di, reg, false); 7948c0984e5SSebastian Reichel if (charge < 0) { 7958c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading charge register %02x: %d\n", 7968c0984e5SSebastian Reichel reg, charge); 7978c0984e5SSebastian Reichel return charge; 7988c0984e5SSebastian Reichel } 7998c0984e5SSebastian Reichel 8008c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8018c0984e5SSebastian Reichel charge *= BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 8028c0984e5SSebastian Reichel else 8038c0984e5SSebastian Reichel charge *= 1000; 8048c0984e5SSebastian Reichel 8058c0984e5SSebastian Reichel return charge; 8068c0984e5SSebastian Reichel } 8078c0984e5SSebastian Reichel 8088c0984e5SSebastian Reichel /* 8098c0984e5SSebastian Reichel * Return the battery Nominal available capacity in µAh 8108c0984e5SSebastian Reichel * Or < 0 if something fails. 8118c0984e5SSebastian Reichel */ 8128c0984e5SSebastian Reichel static inline int bq27xxx_battery_read_nac(struct bq27xxx_device_info *di) 8138c0984e5SSebastian Reichel { 8148c0984e5SSebastian Reichel int flags; 8158c0984e5SSebastian Reichel 8168c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 8178c0984e5SSebastian Reichel flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true); 8188c0984e5SSebastian Reichel if (flags >= 0 && (flags & BQ27000_FLAG_CI)) 8198c0984e5SSebastian Reichel return -ENODATA; 8208c0984e5SSebastian Reichel } 8218c0984e5SSebastian Reichel 8228c0984e5SSebastian Reichel return bq27xxx_battery_read_charge(di, BQ27XXX_REG_NAC); 8238c0984e5SSebastian Reichel } 8248c0984e5SSebastian Reichel 8258c0984e5SSebastian Reichel /* 8268c0984e5SSebastian Reichel * Return the battery Full Charge Capacity in µAh 8278c0984e5SSebastian Reichel * Or < 0 if something fails. 8288c0984e5SSebastian Reichel */ 8298c0984e5SSebastian Reichel static inline int bq27xxx_battery_read_fcc(struct bq27xxx_device_info *di) 8308c0984e5SSebastian Reichel { 8318c0984e5SSebastian Reichel return bq27xxx_battery_read_charge(di, BQ27XXX_REG_FCC); 8328c0984e5SSebastian Reichel } 8338c0984e5SSebastian Reichel 8348c0984e5SSebastian Reichel /* 8358c0984e5SSebastian Reichel * Return the Design Capacity in µAh 8368c0984e5SSebastian Reichel * Or < 0 if something fails. 8378c0984e5SSebastian Reichel */ 8388c0984e5SSebastian Reichel static int bq27xxx_battery_read_dcap(struct bq27xxx_device_info *di) 8398c0984e5SSebastian Reichel { 8408c0984e5SSebastian Reichel int dcap; 8418c0984e5SSebastian Reichel 8428c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8438c0984e5SSebastian Reichel dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, true); 8448c0984e5SSebastian Reichel else 8458c0984e5SSebastian Reichel dcap = bq27xxx_read(di, BQ27XXX_REG_DCAP, false); 8468c0984e5SSebastian Reichel 8478c0984e5SSebastian Reichel if (dcap < 0) { 8488c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading initial last measured discharge\n"); 8498c0984e5SSebastian Reichel return dcap; 8508c0984e5SSebastian Reichel } 8518c0984e5SSebastian Reichel 8528c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8538c0984e5SSebastian Reichel dcap = (dcap << 8) * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 8548c0984e5SSebastian Reichel else 8558c0984e5SSebastian Reichel dcap *= 1000; 8568c0984e5SSebastian Reichel 8578c0984e5SSebastian Reichel return dcap; 8588c0984e5SSebastian Reichel } 8598c0984e5SSebastian Reichel 8608c0984e5SSebastian Reichel /* 8618c0984e5SSebastian Reichel * Return the battery Available energy in µWh 8628c0984e5SSebastian Reichel * Or < 0 if something fails. 8638c0984e5SSebastian Reichel */ 8648c0984e5SSebastian Reichel static int bq27xxx_battery_read_energy(struct bq27xxx_device_info *di) 8658c0984e5SSebastian Reichel { 8668c0984e5SSebastian Reichel int ae; 8678c0984e5SSebastian Reichel 8688c0984e5SSebastian Reichel ae = bq27xxx_read(di, BQ27XXX_REG_AE, false); 8698c0984e5SSebastian Reichel if (ae < 0) { 8708c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading available energy\n"); 8718c0984e5SSebastian Reichel return ae; 8728c0984e5SSebastian Reichel } 8738c0984e5SSebastian Reichel 8748c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8758c0984e5SSebastian Reichel ae *= BQ27XXX_POWER_CONSTANT / BQ27XXX_RS; 8768c0984e5SSebastian Reichel else 8778c0984e5SSebastian Reichel ae *= 1000; 8788c0984e5SSebastian Reichel 8798c0984e5SSebastian Reichel return ae; 8808c0984e5SSebastian Reichel } 8818c0984e5SSebastian Reichel 8828c0984e5SSebastian Reichel /* 8838c0984e5SSebastian Reichel * Return the battery temperature in tenths of degree Kelvin 8848c0984e5SSebastian Reichel * Or < 0 if something fails. 8858c0984e5SSebastian Reichel */ 8868c0984e5SSebastian Reichel static int bq27xxx_battery_read_temperature(struct bq27xxx_device_info *di) 8878c0984e5SSebastian Reichel { 8888c0984e5SSebastian Reichel int temp; 8898c0984e5SSebastian Reichel 8908c0984e5SSebastian Reichel temp = bq27xxx_read(di, BQ27XXX_REG_TEMP, false); 8918c0984e5SSebastian Reichel if (temp < 0) { 8928c0984e5SSebastian Reichel dev_err(di->dev, "error reading temperature\n"); 8938c0984e5SSebastian Reichel return temp; 8948c0984e5SSebastian Reichel } 8958c0984e5SSebastian Reichel 8968c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 8978c0984e5SSebastian Reichel temp = 5 * temp / 2; 8988c0984e5SSebastian Reichel 8998c0984e5SSebastian Reichel return temp; 9008c0984e5SSebastian Reichel } 9018c0984e5SSebastian Reichel 9028c0984e5SSebastian Reichel /* 9038c0984e5SSebastian Reichel * Return the battery Cycle count total 9048c0984e5SSebastian Reichel * Or < 0 if something fails. 9058c0984e5SSebastian Reichel */ 9068c0984e5SSebastian Reichel static int bq27xxx_battery_read_cyct(struct bq27xxx_device_info *di) 9078c0984e5SSebastian Reichel { 9088c0984e5SSebastian Reichel int cyct; 9098c0984e5SSebastian Reichel 9108c0984e5SSebastian Reichel cyct = bq27xxx_read(di, BQ27XXX_REG_CYCT, false); 9118c0984e5SSebastian Reichel if (cyct < 0) 9128c0984e5SSebastian Reichel dev_err(di->dev, "error reading cycle count total\n"); 9138c0984e5SSebastian Reichel 9148c0984e5SSebastian Reichel return cyct; 9158c0984e5SSebastian Reichel } 9168c0984e5SSebastian Reichel 9178c0984e5SSebastian Reichel /* 9188c0984e5SSebastian Reichel * Read a time register. 9198c0984e5SSebastian Reichel * Return < 0 if something fails. 9208c0984e5SSebastian Reichel */ 9218c0984e5SSebastian Reichel static int bq27xxx_battery_read_time(struct bq27xxx_device_info *di, u8 reg) 9228c0984e5SSebastian Reichel { 9238c0984e5SSebastian Reichel int tval; 9248c0984e5SSebastian Reichel 9258c0984e5SSebastian Reichel tval = bq27xxx_read(di, reg, false); 9268c0984e5SSebastian Reichel if (tval < 0) { 9278c0984e5SSebastian Reichel dev_dbg(di->dev, "error reading time register %02x: %d\n", 9288c0984e5SSebastian Reichel reg, tval); 9298c0984e5SSebastian Reichel return tval; 9308c0984e5SSebastian Reichel } 9318c0984e5SSebastian Reichel 9328c0984e5SSebastian Reichel if (tval == 65535) 9338c0984e5SSebastian Reichel return -ENODATA; 9348c0984e5SSebastian Reichel 9358c0984e5SSebastian Reichel return tval * 60; 9368c0984e5SSebastian Reichel } 9378c0984e5SSebastian Reichel 9388c0984e5SSebastian Reichel /* 9398c0984e5SSebastian Reichel * Read an average power register. 9408c0984e5SSebastian Reichel * Return < 0 if something fails. 9418c0984e5SSebastian Reichel */ 9428c0984e5SSebastian Reichel static int bq27xxx_battery_read_pwr_avg(struct bq27xxx_device_info *di) 9438c0984e5SSebastian Reichel { 9448c0984e5SSebastian Reichel int tval; 9458c0984e5SSebastian Reichel 9468c0984e5SSebastian Reichel tval = bq27xxx_read(di, BQ27XXX_REG_AP, false); 9478c0984e5SSebastian Reichel if (tval < 0) { 9488c0984e5SSebastian Reichel dev_err(di->dev, "error reading average power register %02x: %d\n", 9498c0984e5SSebastian Reichel BQ27XXX_REG_AP, tval); 9508c0984e5SSebastian Reichel return tval; 9518c0984e5SSebastian Reichel } 9528c0984e5SSebastian Reichel 9538c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 9548c0984e5SSebastian Reichel return (tval * BQ27XXX_POWER_CONSTANT) / BQ27XXX_RS; 9558c0984e5SSebastian Reichel else 9568c0984e5SSebastian Reichel return tval; 9578c0984e5SSebastian Reichel } 9588c0984e5SSebastian Reichel 9598c0984e5SSebastian Reichel /* 9608c0984e5SSebastian Reichel * Returns true if a battery over temperature condition is detected 9618c0984e5SSebastian Reichel */ 9628c0984e5SSebastian Reichel static bool bq27xxx_battery_overtemp(struct bq27xxx_device_info *di, u16 flags) 9638c0984e5SSebastian Reichel { 964e839a448SChris Lapa switch (di->chip) { 965818e3012SChris Lapa case BQ2750X: 9666da6e4bdSChris Lapa case BQ2751X: 96732833635SChris Lapa case BQ27500: 968bd28177fSChris Lapa case BQ27510G1: 969698a2bf5SChris Lapa case BQ27510G2: 97071375aa7SChris Lapa case BQ27510G3: 97168f2a813SChris Lapa case BQ27520G1: 972a5deb9a9SChris Lapa case BQ27520G2: 973825e915bSChris Lapa case BQ27520G3: 974e839a448SChris Lapa case BQ27541: 975e839a448SChris Lapa case BQ27545: 9768c0984e5SSebastian Reichel return flags & (BQ27XXX_FLAG_OTC | BQ27XXX_FLAG_OTD); 977e839a448SChris Lapa case BQ27530: 978e839a448SChris Lapa case BQ27421: 9798c0984e5SSebastian Reichel return flags & BQ27XXX_FLAG_OT; 980e839a448SChris Lapa default: 9818c0984e5SSebastian Reichel return false; 9828c0984e5SSebastian Reichel } 983e839a448SChris Lapa } 9848c0984e5SSebastian Reichel 9858c0984e5SSebastian Reichel /* 9868c0984e5SSebastian Reichel * Returns true if a battery under temperature condition is detected 9878c0984e5SSebastian Reichel */ 9888c0984e5SSebastian Reichel static bool bq27xxx_battery_undertemp(struct bq27xxx_device_info *di, u16 flags) 9898c0984e5SSebastian Reichel { 9908c0984e5SSebastian Reichel if (di->chip == BQ27530 || di->chip == BQ27421) 9918c0984e5SSebastian Reichel return flags & BQ27XXX_FLAG_UT; 9928c0984e5SSebastian Reichel 9938c0984e5SSebastian Reichel return false; 9948c0984e5SSebastian Reichel } 9958c0984e5SSebastian Reichel 9968c0984e5SSebastian Reichel /* 9978c0984e5SSebastian Reichel * Returns true if a low state of charge condition is detected 9988c0984e5SSebastian Reichel */ 9998c0984e5SSebastian Reichel static bool bq27xxx_battery_dead(struct bq27xxx_device_info *di, u16 flags) 10008c0984e5SSebastian Reichel { 10018c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) 10028c0984e5SSebastian Reichel return flags & (BQ27000_FLAG_EDV1 | BQ27000_FLAG_EDVF); 10038c0984e5SSebastian Reichel else 10048c0984e5SSebastian Reichel return flags & (BQ27XXX_FLAG_SOC1 | BQ27XXX_FLAG_SOCF); 10058c0984e5SSebastian Reichel } 10068c0984e5SSebastian Reichel 10078c0984e5SSebastian Reichel /* 10088c0984e5SSebastian Reichel * Read flag register. 10098c0984e5SSebastian Reichel * Return < 0 if something fails. 10108c0984e5SSebastian Reichel */ 10118c0984e5SSebastian Reichel static int bq27xxx_battery_read_health(struct bq27xxx_device_info *di) 10128c0984e5SSebastian Reichel { 10138c0984e5SSebastian Reichel int flags; 1014e4a404a0SH. Nikolaus Schaller bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010; 10158c0984e5SSebastian Reichel 1016e4a404a0SH. Nikolaus Schaller flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag); 10178c0984e5SSebastian Reichel if (flags < 0) { 10188c0984e5SSebastian Reichel dev_err(di->dev, "error reading flag register:%d\n", flags); 10198c0984e5SSebastian Reichel return flags; 10208c0984e5SSebastian Reichel } 10218c0984e5SSebastian Reichel 10228c0984e5SSebastian Reichel /* Unlikely but important to return first */ 10238c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_overtemp(di, flags))) 10248c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_OVERHEAT; 10258c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_undertemp(di, flags))) 10268c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_COLD; 10278c0984e5SSebastian Reichel if (unlikely(bq27xxx_battery_dead(di, flags))) 10288c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_DEAD; 10298c0984e5SSebastian Reichel 10308c0984e5SSebastian Reichel return POWER_SUPPLY_HEALTH_GOOD; 10318c0984e5SSebastian Reichel } 10328c0984e5SSebastian Reichel 10338c0984e5SSebastian Reichel void bq27xxx_battery_update(struct bq27xxx_device_info *di) 10348c0984e5SSebastian Reichel { 10358c0984e5SSebastian Reichel struct bq27xxx_reg_cache cache = {0, }; 10368c0984e5SSebastian Reichel bool has_ci_flag = di->chip == BQ27000 || di->chip == BQ27010; 10378c0984e5SSebastian Reichel bool has_singe_flag = di->chip == BQ27000 || di->chip == BQ27010; 10388c0984e5SSebastian Reichel 10398c0984e5SSebastian Reichel cache.flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, has_singe_flag); 10408c0984e5SSebastian Reichel if ((cache.flags & 0xff) == 0xff) 10418c0984e5SSebastian Reichel cache.flags = -1; /* read error */ 10428c0984e5SSebastian Reichel if (cache.flags >= 0) { 10438c0984e5SSebastian Reichel cache.temperature = bq27xxx_battery_read_temperature(di); 10448c0984e5SSebastian Reichel if (has_ci_flag && (cache.flags & BQ27000_FLAG_CI)) { 10458c0984e5SSebastian Reichel dev_info_once(di->dev, "battery is not calibrated! ignoring capacity values\n"); 10468c0984e5SSebastian Reichel cache.capacity = -ENODATA; 10478c0984e5SSebastian Reichel cache.energy = -ENODATA; 10488c0984e5SSebastian Reichel cache.time_to_empty = -ENODATA; 10498c0984e5SSebastian Reichel cache.time_to_empty_avg = -ENODATA; 10508c0984e5SSebastian Reichel cache.time_to_full = -ENODATA; 10518c0984e5SSebastian Reichel cache.charge_full = -ENODATA; 10528c0984e5SSebastian Reichel cache.health = -ENODATA; 10538c0984e5SSebastian Reichel } else { 10548c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTE] != INVALID_REG_ADDR) 10558c0984e5SSebastian Reichel cache.time_to_empty = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTE); 10568c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTECP] != INVALID_REG_ADDR) 10578c0984e5SSebastian Reichel cache.time_to_empty_avg = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTECP); 10588c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_TTF] != INVALID_REG_ADDR) 10598c0984e5SSebastian Reichel cache.time_to_full = bq27xxx_battery_read_time(di, BQ27XXX_REG_TTF); 10608c0984e5SSebastian Reichel cache.charge_full = bq27xxx_battery_read_fcc(di); 10618c0984e5SSebastian Reichel cache.capacity = bq27xxx_battery_read_soc(di); 10628c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_AE] != INVALID_REG_ADDR) 10638c0984e5SSebastian Reichel cache.energy = bq27xxx_battery_read_energy(di); 10648c0984e5SSebastian Reichel cache.health = bq27xxx_battery_read_health(di); 10658c0984e5SSebastian Reichel } 10668c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_CYCT] != INVALID_REG_ADDR) 10678c0984e5SSebastian Reichel cache.cycle_count = bq27xxx_battery_read_cyct(di); 10688c0984e5SSebastian Reichel if (di->regs[BQ27XXX_REG_AP] != INVALID_REG_ADDR) 10698c0984e5SSebastian Reichel cache.power_avg = bq27xxx_battery_read_pwr_avg(di); 10708c0984e5SSebastian Reichel 10718c0984e5SSebastian Reichel /* We only have to read charge design full once */ 10728c0984e5SSebastian Reichel if (di->charge_design_full <= 0) 10738c0984e5SSebastian Reichel di->charge_design_full = bq27xxx_battery_read_dcap(di); 10748c0984e5SSebastian Reichel } 10758c0984e5SSebastian Reichel 10768c0984e5SSebastian Reichel if (di->cache.capacity != cache.capacity) 10778c0984e5SSebastian Reichel power_supply_changed(di->bat); 10788c0984e5SSebastian Reichel 10798c0984e5SSebastian Reichel if (memcmp(&di->cache, &cache, sizeof(cache)) != 0) 10808c0984e5SSebastian Reichel di->cache = cache; 10818c0984e5SSebastian Reichel 10828c0984e5SSebastian Reichel di->last_update = jiffies; 10838c0984e5SSebastian Reichel } 10848c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_update); 10858c0984e5SSebastian Reichel 10868c0984e5SSebastian Reichel static void bq27xxx_battery_poll(struct work_struct *work) 10878c0984e5SSebastian Reichel { 10888c0984e5SSebastian Reichel struct bq27xxx_device_info *di = 10898c0984e5SSebastian Reichel container_of(work, struct bq27xxx_device_info, 10908c0984e5SSebastian Reichel work.work); 10918c0984e5SSebastian Reichel 10928c0984e5SSebastian Reichel bq27xxx_battery_update(di); 10938c0984e5SSebastian Reichel 10948c0984e5SSebastian Reichel if (poll_interval > 0) 10958c0984e5SSebastian Reichel schedule_delayed_work(&di->work, poll_interval * HZ); 10968c0984e5SSebastian Reichel } 10978c0984e5SSebastian Reichel 10988c0984e5SSebastian Reichel /* 10998c0984e5SSebastian Reichel * Return the battery average current in µA 11008c0984e5SSebastian Reichel * Note that current can be negative signed as well 11018c0984e5SSebastian Reichel * Or 0 if something fails. 11028c0984e5SSebastian Reichel */ 11038c0984e5SSebastian Reichel static int bq27xxx_battery_current(struct bq27xxx_device_info *di, 11048c0984e5SSebastian Reichel union power_supply_propval *val) 11058c0984e5SSebastian Reichel { 11068c0984e5SSebastian Reichel int curr; 11078c0984e5SSebastian Reichel int flags; 11088c0984e5SSebastian Reichel 11098c0984e5SSebastian Reichel curr = bq27xxx_read(di, BQ27XXX_REG_AI, false); 11108c0984e5SSebastian Reichel if (curr < 0) { 11118c0984e5SSebastian Reichel dev_err(di->dev, "error reading current\n"); 11128c0984e5SSebastian Reichel return curr; 11138c0984e5SSebastian Reichel } 11148c0984e5SSebastian Reichel 11158c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 1116e4a404a0SH. Nikolaus Schaller flags = bq27xxx_read(di, BQ27XXX_REG_FLAGS, true); 11178c0984e5SSebastian Reichel if (flags & BQ27000_FLAG_CHGS) { 11188c0984e5SSebastian Reichel dev_dbg(di->dev, "negative current!\n"); 11198c0984e5SSebastian Reichel curr = -curr; 11208c0984e5SSebastian Reichel } 11218c0984e5SSebastian Reichel 11228c0984e5SSebastian Reichel val->intval = curr * BQ27XXX_CURRENT_CONSTANT / BQ27XXX_RS; 11238c0984e5SSebastian Reichel } else { 11248c0984e5SSebastian Reichel /* Other gauges return signed value */ 11258c0984e5SSebastian Reichel val->intval = (int)((s16)curr) * 1000; 11268c0984e5SSebastian Reichel } 11278c0984e5SSebastian Reichel 11288c0984e5SSebastian Reichel return 0; 11298c0984e5SSebastian Reichel } 11308c0984e5SSebastian Reichel 11318c0984e5SSebastian Reichel static int bq27xxx_battery_status(struct bq27xxx_device_info *di, 11328c0984e5SSebastian Reichel union power_supply_propval *val) 11338c0984e5SSebastian Reichel { 11348c0984e5SSebastian Reichel int status; 11358c0984e5SSebastian Reichel 11368c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 11378c0984e5SSebastian Reichel if (di->cache.flags & BQ27000_FLAG_FC) 11388c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_FULL; 11398c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_CHGS) 11408c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_CHARGING; 11418c0984e5SSebastian Reichel else if (power_supply_am_i_supplied(di->bat)) 11428c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_NOT_CHARGING; 11438c0984e5SSebastian Reichel else 11448c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_DISCHARGING; 11458c0984e5SSebastian Reichel } else { 11468c0984e5SSebastian Reichel if (di->cache.flags & BQ27XXX_FLAG_FC) 11478c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_FULL; 11488c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_DSC) 11498c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_DISCHARGING; 11508c0984e5SSebastian Reichel else 11518c0984e5SSebastian Reichel status = POWER_SUPPLY_STATUS_CHARGING; 11528c0984e5SSebastian Reichel } 11538c0984e5SSebastian Reichel 11548c0984e5SSebastian Reichel val->intval = status; 11558c0984e5SSebastian Reichel 11568c0984e5SSebastian Reichel return 0; 11578c0984e5SSebastian Reichel } 11588c0984e5SSebastian Reichel 11598c0984e5SSebastian Reichel static int bq27xxx_battery_capacity_level(struct bq27xxx_device_info *di, 11608c0984e5SSebastian Reichel union power_supply_propval *val) 11618c0984e5SSebastian Reichel { 11628c0984e5SSebastian Reichel int level; 11638c0984e5SSebastian Reichel 11648c0984e5SSebastian Reichel if (di->chip == BQ27000 || di->chip == BQ27010) { 11658c0984e5SSebastian Reichel if (di->cache.flags & BQ27000_FLAG_FC) 11668c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; 11678c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_EDV1) 11688c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; 11698c0984e5SSebastian Reichel else if (di->cache.flags & BQ27000_FLAG_EDVF) 11708c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; 11718c0984e5SSebastian Reichel else 11728c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; 11738c0984e5SSebastian Reichel } else { 11748c0984e5SSebastian Reichel if (di->cache.flags & BQ27XXX_FLAG_FC) 11758c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_FULL; 11768c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_SOC1) 11778c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_LOW; 11788c0984e5SSebastian Reichel else if (di->cache.flags & BQ27XXX_FLAG_SOCF) 11798c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL; 11808c0984e5SSebastian Reichel else 11818c0984e5SSebastian Reichel level = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; 11828c0984e5SSebastian Reichel } 11838c0984e5SSebastian Reichel 11848c0984e5SSebastian Reichel val->intval = level; 11858c0984e5SSebastian Reichel 11868c0984e5SSebastian Reichel return 0; 11878c0984e5SSebastian Reichel } 11888c0984e5SSebastian Reichel 11898c0984e5SSebastian Reichel /* 11908c0984e5SSebastian Reichel * Return the battery Voltage in millivolts 11918c0984e5SSebastian Reichel * Or < 0 if something fails. 11928c0984e5SSebastian Reichel */ 11938c0984e5SSebastian Reichel static int bq27xxx_battery_voltage(struct bq27xxx_device_info *di, 11948c0984e5SSebastian Reichel union power_supply_propval *val) 11958c0984e5SSebastian Reichel { 11968c0984e5SSebastian Reichel int volt; 11978c0984e5SSebastian Reichel 11988c0984e5SSebastian Reichel volt = bq27xxx_read(di, BQ27XXX_REG_VOLT, false); 11998c0984e5SSebastian Reichel if (volt < 0) { 12008c0984e5SSebastian Reichel dev_err(di->dev, "error reading voltage\n"); 12018c0984e5SSebastian Reichel return volt; 12028c0984e5SSebastian Reichel } 12038c0984e5SSebastian Reichel 12048c0984e5SSebastian Reichel val->intval = volt * 1000; 12058c0984e5SSebastian Reichel 12068c0984e5SSebastian Reichel return 0; 12078c0984e5SSebastian Reichel } 12088c0984e5SSebastian Reichel 12098c0984e5SSebastian Reichel static int bq27xxx_simple_value(int value, 12108c0984e5SSebastian Reichel union power_supply_propval *val) 12118c0984e5SSebastian Reichel { 12128c0984e5SSebastian Reichel if (value < 0) 12138c0984e5SSebastian Reichel return value; 12148c0984e5SSebastian Reichel 12158c0984e5SSebastian Reichel val->intval = value; 12168c0984e5SSebastian Reichel 12178c0984e5SSebastian Reichel return 0; 12188c0984e5SSebastian Reichel } 12198c0984e5SSebastian Reichel 12208c0984e5SSebastian Reichel static int bq27xxx_battery_get_property(struct power_supply *psy, 12218c0984e5SSebastian Reichel enum power_supply_property psp, 12228c0984e5SSebastian Reichel union power_supply_propval *val) 12238c0984e5SSebastian Reichel { 12248c0984e5SSebastian Reichel int ret = 0; 12258c0984e5SSebastian Reichel struct bq27xxx_device_info *di = power_supply_get_drvdata(psy); 12268c0984e5SSebastian Reichel 12278c0984e5SSebastian Reichel mutex_lock(&di->lock); 12288c0984e5SSebastian Reichel if (time_is_before_jiffies(di->last_update + 5 * HZ)) { 12298c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 12308c0984e5SSebastian Reichel bq27xxx_battery_poll(&di->work.work); 12318c0984e5SSebastian Reichel } 12328c0984e5SSebastian Reichel mutex_unlock(&di->lock); 12338c0984e5SSebastian Reichel 12348c0984e5SSebastian Reichel if (psp != POWER_SUPPLY_PROP_PRESENT && di->cache.flags < 0) 12358c0984e5SSebastian Reichel return -ENODEV; 12368c0984e5SSebastian Reichel 12378c0984e5SSebastian Reichel switch (psp) { 12388c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_STATUS: 12398c0984e5SSebastian Reichel ret = bq27xxx_battery_status(di, val); 12408c0984e5SSebastian Reichel break; 12418c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_VOLTAGE_NOW: 12428c0984e5SSebastian Reichel ret = bq27xxx_battery_voltage(di, val); 12438c0984e5SSebastian Reichel break; 12448c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_PRESENT: 12458c0984e5SSebastian Reichel val->intval = di->cache.flags < 0 ? 0 : 1; 12468c0984e5SSebastian Reichel break; 12478c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CURRENT_NOW: 12488c0984e5SSebastian Reichel ret = bq27xxx_battery_current(di, val); 12498c0984e5SSebastian Reichel break; 12508c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CAPACITY: 12518c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.capacity, val); 12528c0984e5SSebastian Reichel break; 12538c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CAPACITY_LEVEL: 12548c0984e5SSebastian Reichel ret = bq27xxx_battery_capacity_level(di, val); 12558c0984e5SSebastian Reichel break; 12568c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TEMP: 12578c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.temperature, val); 12588c0984e5SSebastian Reichel if (ret == 0) 12598c0984e5SSebastian Reichel val->intval -= 2731; /* convert decidegree k to c */ 12608c0984e5SSebastian Reichel break; 12618c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW: 12628c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_empty, val); 12638c0984e5SSebastian Reichel break; 12648c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: 12658c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_empty_avg, val); 12668c0984e5SSebastian Reichel break; 12678c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: 12688c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.time_to_full, val); 12698c0984e5SSebastian Reichel break; 12708c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_TECHNOLOGY: 12718c0984e5SSebastian Reichel val->intval = POWER_SUPPLY_TECHNOLOGY_LION; 12728c0984e5SSebastian Reichel break; 12738c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_NOW: 12748c0984e5SSebastian Reichel ret = bq27xxx_simple_value(bq27xxx_battery_read_nac(di), val); 12758c0984e5SSebastian Reichel break; 12768c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_FULL: 12778c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.charge_full, val); 12788c0984e5SSebastian Reichel break; 12798c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: 12808c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->charge_design_full, val); 12818c0984e5SSebastian Reichel break; 12828c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_CYCLE_COUNT: 12838c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.cycle_count, val); 12848c0984e5SSebastian Reichel break; 12858c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_ENERGY_NOW: 12868c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.energy, val); 12878c0984e5SSebastian Reichel break; 12888c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_POWER_AVG: 12898c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.power_avg, val); 12908c0984e5SSebastian Reichel break; 12918c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_HEALTH: 12928c0984e5SSebastian Reichel ret = bq27xxx_simple_value(di->cache.health, val); 12938c0984e5SSebastian Reichel break; 12948c0984e5SSebastian Reichel case POWER_SUPPLY_PROP_MANUFACTURER: 12958c0984e5SSebastian Reichel val->strval = BQ27XXX_MANUFACTURER; 12968c0984e5SSebastian Reichel break; 12978c0984e5SSebastian Reichel default: 12988c0984e5SSebastian Reichel return -EINVAL; 12998c0984e5SSebastian Reichel } 13008c0984e5SSebastian Reichel 13018c0984e5SSebastian Reichel return ret; 13028c0984e5SSebastian Reichel } 13038c0984e5SSebastian Reichel 13048c0984e5SSebastian Reichel static void bq27xxx_external_power_changed(struct power_supply *psy) 13058c0984e5SSebastian Reichel { 13068c0984e5SSebastian Reichel struct bq27xxx_device_info *di = power_supply_get_drvdata(psy); 13078c0984e5SSebastian Reichel 13088c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 13098c0984e5SSebastian Reichel schedule_delayed_work(&di->work, 0); 13108c0984e5SSebastian Reichel } 13118c0984e5SSebastian Reichel 13128c0984e5SSebastian Reichel int bq27xxx_battery_setup(struct bq27xxx_device_info *di) 13138c0984e5SSebastian Reichel { 13148c0984e5SSebastian Reichel struct power_supply_desc *psy_desc; 13158c0984e5SSebastian Reichel struct power_supply_config psy_cfg = { .drv_data = di, }; 13168c0984e5SSebastian Reichel 13178c0984e5SSebastian Reichel INIT_DELAYED_WORK(&di->work, bq27xxx_battery_poll); 13188c0984e5SSebastian Reichel mutex_init(&di->lock); 13198c0984e5SSebastian Reichel di->regs = bq27xxx_regs[di->chip]; 13208c0984e5SSebastian Reichel 13218c0984e5SSebastian Reichel psy_desc = devm_kzalloc(di->dev, sizeof(*psy_desc), GFP_KERNEL); 13228c0984e5SSebastian Reichel if (!psy_desc) 13238c0984e5SSebastian Reichel return -ENOMEM; 13248c0984e5SSebastian Reichel 13258c0984e5SSebastian Reichel psy_desc->name = di->name; 13268c0984e5SSebastian Reichel psy_desc->type = POWER_SUPPLY_TYPE_BATTERY; 13278c0984e5SSebastian Reichel psy_desc->properties = bq27xxx_battery_props[di->chip].props; 13288c0984e5SSebastian Reichel psy_desc->num_properties = bq27xxx_battery_props[di->chip].size; 13298c0984e5SSebastian Reichel psy_desc->get_property = bq27xxx_battery_get_property; 13308c0984e5SSebastian Reichel psy_desc->external_power_changed = bq27xxx_external_power_changed; 13318c0984e5SSebastian Reichel 13328c0984e5SSebastian Reichel di->bat = power_supply_register_no_ws(di->dev, psy_desc, &psy_cfg); 13338c0984e5SSebastian Reichel if (IS_ERR(di->bat)) { 13348c0984e5SSebastian Reichel dev_err(di->dev, "failed to register battery\n"); 13358c0984e5SSebastian Reichel return PTR_ERR(di->bat); 13368c0984e5SSebastian Reichel } 13378c0984e5SSebastian Reichel 13388c0984e5SSebastian Reichel dev_info(di->dev, "support ver. %s enabled\n", DRIVER_VERSION); 13398c0984e5SSebastian Reichel 13408c0984e5SSebastian Reichel bq27xxx_battery_update(di); 13418c0984e5SSebastian Reichel 13421d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 13431d72706fSMatt Ranostay list_add(&di->list, &bq27xxx_battery_devices); 13441d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 13451d72706fSMatt Ranostay 13468c0984e5SSebastian Reichel return 0; 13478c0984e5SSebastian Reichel } 13488c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_setup); 13498c0984e5SSebastian Reichel 13508c0984e5SSebastian Reichel void bq27xxx_battery_teardown(struct bq27xxx_device_info *di) 13518c0984e5SSebastian Reichel { 13528c0984e5SSebastian Reichel /* 13538c0984e5SSebastian Reichel * power_supply_unregister call bq27xxx_battery_get_property which 13548c0984e5SSebastian Reichel * call bq27xxx_battery_poll. 13558c0984e5SSebastian Reichel * Make sure that bq27xxx_battery_poll will not call 13568c0984e5SSebastian Reichel * schedule_delayed_work again after unregister (which cause OOPS). 13578c0984e5SSebastian Reichel */ 13588c0984e5SSebastian Reichel poll_interval = 0; 13598c0984e5SSebastian Reichel 13608c0984e5SSebastian Reichel cancel_delayed_work_sync(&di->work); 13618c0984e5SSebastian Reichel 13628c0984e5SSebastian Reichel power_supply_unregister(di->bat); 13638c0984e5SSebastian Reichel 13641d72706fSMatt Ranostay mutex_lock(&bq27xxx_list_lock); 13651d72706fSMatt Ranostay list_del(&di->list); 13661d72706fSMatt Ranostay mutex_unlock(&bq27xxx_list_lock); 13671d72706fSMatt Ranostay 13688c0984e5SSebastian Reichel mutex_destroy(&di->lock); 13698c0984e5SSebastian Reichel } 13708c0984e5SSebastian Reichel EXPORT_SYMBOL_GPL(bq27xxx_battery_teardown); 13718c0984e5SSebastian Reichel 13728c0984e5SSebastian Reichel static int bq27xxx_battery_platform_read(struct bq27xxx_device_info *di, u8 reg, 13738c0984e5SSebastian Reichel bool single) 13748c0984e5SSebastian Reichel { 13758c0984e5SSebastian Reichel struct device *dev = di->dev; 13768c0984e5SSebastian Reichel struct bq27xxx_platform_data *pdata = dev->platform_data; 13778c0984e5SSebastian Reichel unsigned int timeout = 3; 13788c0984e5SSebastian Reichel int upper, lower; 13798c0984e5SSebastian Reichel int temp; 13808c0984e5SSebastian Reichel 13818c0984e5SSebastian Reichel if (!single) { 13828c0984e5SSebastian Reichel /* Make sure the value has not changed in between reading the 13838c0984e5SSebastian Reichel * lower and the upper part */ 13848c0984e5SSebastian Reichel upper = pdata->read(dev, reg + 1); 13858c0984e5SSebastian Reichel do { 13868c0984e5SSebastian Reichel temp = upper; 13878c0984e5SSebastian Reichel if (upper < 0) 13888c0984e5SSebastian Reichel return upper; 13898c0984e5SSebastian Reichel 13908c0984e5SSebastian Reichel lower = pdata->read(dev, reg); 13918c0984e5SSebastian Reichel if (lower < 0) 13928c0984e5SSebastian Reichel return lower; 13938c0984e5SSebastian Reichel 13948c0984e5SSebastian Reichel upper = pdata->read(dev, reg + 1); 13958c0984e5SSebastian Reichel } while (temp != upper && --timeout); 13968c0984e5SSebastian Reichel 13978c0984e5SSebastian Reichel if (timeout == 0) 13988c0984e5SSebastian Reichel return -EIO; 13998c0984e5SSebastian Reichel 14008c0984e5SSebastian Reichel return (upper << 8) | lower; 14018c0984e5SSebastian Reichel } 14028c0984e5SSebastian Reichel 14038c0984e5SSebastian Reichel return pdata->read(dev, reg); 14048c0984e5SSebastian Reichel } 14058c0984e5SSebastian Reichel 14068c0984e5SSebastian Reichel static int bq27xxx_battery_platform_probe(struct platform_device *pdev) 14078c0984e5SSebastian Reichel { 14088c0984e5SSebastian Reichel struct bq27xxx_device_info *di; 14098c0984e5SSebastian Reichel struct bq27xxx_platform_data *pdata = pdev->dev.platform_data; 14108c0984e5SSebastian Reichel 14118c0984e5SSebastian Reichel if (!pdata) { 14128c0984e5SSebastian Reichel dev_err(&pdev->dev, "no platform_data supplied\n"); 14138c0984e5SSebastian Reichel return -EINVAL; 14148c0984e5SSebastian Reichel } 14158c0984e5SSebastian Reichel 14168c0984e5SSebastian Reichel if (!pdata->read) { 14178c0984e5SSebastian Reichel dev_err(&pdev->dev, "no hdq read callback supplied\n"); 14188c0984e5SSebastian Reichel return -EINVAL; 14198c0984e5SSebastian Reichel } 14208c0984e5SSebastian Reichel 14218c0984e5SSebastian Reichel if (!pdata->chip) { 14228c0984e5SSebastian Reichel dev_err(&pdev->dev, "no device supplied\n"); 14238c0984e5SSebastian Reichel return -EINVAL; 14248c0984e5SSebastian Reichel } 14258c0984e5SSebastian Reichel 14268c0984e5SSebastian Reichel di = devm_kzalloc(&pdev->dev, sizeof(*di), GFP_KERNEL); 14278c0984e5SSebastian Reichel if (!di) 14288c0984e5SSebastian Reichel return -ENOMEM; 14298c0984e5SSebastian Reichel 14308c0984e5SSebastian Reichel platform_set_drvdata(pdev, di); 14318c0984e5SSebastian Reichel 14328c0984e5SSebastian Reichel di->dev = &pdev->dev; 14338c0984e5SSebastian Reichel di->chip = pdata->chip; 14348c0984e5SSebastian Reichel di->name = pdata->name ?: dev_name(&pdev->dev); 14358c0984e5SSebastian Reichel di->bus.read = bq27xxx_battery_platform_read; 14368c0984e5SSebastian Reichel 14378c0984e5SSebastian Reichel return bq27xxx_battery_setup(di); 14388c0984e5SSebastian Reichel } 14398c0984e5SSebastian Reichel 14408c0984e5SSebastian Reichel static int bq27xxx_battery_platform_remove(struct platform_device *pdev) 14418c0984e5SSebastian Reichel { 14428c0984e5SSebastian Reichel struct bq27xxx_device_info *di = platform_get_drvdata(pdev); 14438c0984e5SSebastian Reichel 14448c0984e5SSebastian Reichel bq27xxx_battery_teardown(di); 14458c0984e5SSebastian Reichel 14468c0984e5SSebastian Reichel return 0; 14478c0984e5SSebastian Reichel } 14488c0984e5SSebastian Reichel 14498c0984e5SSebastian Reichel static const struct platform_device_id bq27xxx_battery_platform_id_table[] = { 14508c0984e5SSebastian Reichel { "bq27000-battery", }, 14518c0984e5SSebastian Reichel { /* sentinel */ } 14528c0984e5SSebastian Reichel }; 14538c0984e5SSebastian Reichel MODULE_DEVICE_TABLE(platform, bq27xxx_battery_platform_id_table); 14548c0984e5SSebastian Reichel 14558c0984e5SSebastian Reichel #ifdef CONFIG_OF 14568c0984e5SSebastian Reichel static const struct of_device_id bq27xxx_battery_platform_of_match_table[] = { 14578c0984e5SSebastian Reichel { .compatible = "ti,bq27000" }, 14588c0984e5SSebastian Reichel {}, 14598c0984e5SSebastian Reichel }; 14608c0984e5SSebastian Reichel MODULE_DEVICE_TABLE(of, bq27xxx_battery_platform_of_match_table); 14618c0984e5SSebastian Reichel #endif 14628c0984e5SSebastian Reichel 14638c0984e5SSebastian Reichel static struct platform_driver bq27xxx_battery_platform_driver = { 14648c0984e5SSebastian Reichel .probe = bq27xxx_battery_platform_probe, 14658c0984e5SSebastian Reichel .remove = bq27xxx_battery_platform_remove, 14668c0984e5SSebastian Reichel .driver = { 14678c0984e5SSebastian Reichel .name = "bq27000-battery", 14688c0984e5SSebastian Reichel .of_match_table = of_match_ptr(bq27xxx_battery_platform_of_match_table), 14698c0984e5SSebastian Reichel }, 14708c0984e5SSebastian Reichel .id_table = bq27xxx_battery_platform_id_table, 14718c0984e5SSebastian Reichel }; 14728c0984e5SSebastian Reichel module_platform_driver(bq27xxx_battery_platform_driver); 14738c0984e5SSebastian Reichel 14748c0984e5SSebastian Reichel MODULE_ALIAS("platform:bq27000-battery"); 14758c0984e5SSebastian Reichel 14768c0984e5SSebastian Reichel MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>"); 14778c0984e5SSebastian Reichel MODULE_DESCRIPTION("BQ27xxx battery monitor driver"); 14788c0984e5SSebastian Reichel MODULE_LICENSE("GPL"); 1479