19d2ecfb7SGuenter Roeck /* 29d2ecfb7SGuenter Roeck * pmbus.h - Common defines and structures for PMBus devices 39d2ecfb7SGuenter Roeck * 49d2ecfb7SGuenter Roeck * Copyright (c) 2010, 2011 Ericsson AB. 5aebcbbfcSGuenter Roeck * Copyright (c) 2012 Guenter Roeck 69d2ecfb7SGuenter Roeck * 79d2ecfb7SGuenter Roeck * This program is free software; you can redistribute it and/or modify 89d2ecfb7SGuenter Roeck * it under the terms of the GNU General Public License as published by 99d2ecfb7SGuenter Roeck * the Free Software Foundation; either version 2 of the License, or 109d2ecfb7SGuenter Roeck * (at your option) any later version. 119d2ecfb7SGuenter Roeck * 129d2ecfb7SGuenter Roeck * This program is distributed in the hope that it will be useful, 139d2ecfb7SGuenter Roeck * but WITHOUT ANY WARRANTY; without even the implied warranty of 149d2ecfb7SGuenter Roeck * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 159d2ecfb7SGuenter Roeck * GNU General Public License for more details. 169d2ecfb7SGuenter Roeck * 179d2ecfb7SGuenter Roeck * You should have received a copy of the GNU General Public License 189d2ecfb7SGuenter Roeck * along with this program; if not, write to the Free Software 199d2ecfb7SGuenter Roeck * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 209d2ecfb7SGuenter Roeck */ 219d2ecfb7SGuenter Roeck 22*ddbb4db4SAlan Tull #include <linux/regulator/driver.h> 23*ddbb4db4SAlan Tull 249d2ecfb7SGuenter Roeck #ifndef PMBUS_H 259d2ecfb7SGuenter Roeck #define PMBUS_H 269d2ecfb7SGuenter Roeck 279d2ecfb7SGuenter Roeck /* 289d2ecfb7SGuenter Roeck * Registers 299d2ecfb7SGuenter Roeck */ 309d2ecfb7SGuenter Roeck #define PMBUS_PAGE 0x00 319d2ecfb7SGuenter Roeck #define PMBUS_OPERATION 0x01 329d2ecfb7SGuenter Roeck #define PMBUS_ON_OFF_CONFIG 0x02 339d2ecfb7SGuenter Roeck #define PMBUS_CLEAR_FAULTS 0x03 349d2ecfb7SGuenter Roeck #define PMBUS_PHASE 0x04 359d2ecfb7SGuenter Roeck 369d2ecfb7SGuenter Roeck #define PMBUS_CAPABILITY 0x19 379d2ecfb7SGuenter Roeck #define PMBUS_QUERY 0x1A 389d2ecfb7SGuenter Roeck 399d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MODE 0x20 409d2ecfb7SGuenter Roeck #define PMBUS_VOUT_COMMAND 0x21 419d2ecfb7SGuenter Roeck #define PMBUS_VOUT_TRIM 0x22 429d2ecfb7SGuenter Roeck #define PMBUS_VOUT_CAL_OFFSET 0x23 439d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MAX 0x24 449d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MARGIN_HIGH 0x25 459d2ecfb7SGuenter Roeck #define PMBUS_VOUT_MARGIN_LOW 0x26 469d2ecfb7SGuenter Roeck #define PMBUS_VOUT_TRANSITION_RATE 0x27 479d2ecfb7SGuenter Roeck #define PMBUS_VOUT_DROOP 0x28 489d2ecfb7SGuenter Roeck #define PMBUS_VOUT_SCALE_LOOP 0x29 499d2ecfb7SGuenter Roeck #define PMBUS_VOUT_SCALE_MONITOR 0x2A 509d2ecfb7SGuenter Roeck 519d2ecfb7SGuenter Roeck #define PMBUS_COEFFICIENTS 0x30 529d2ecfb7SGuenter Roeck #define PMBUS_POUT_MAX 0x31 539d2ecfb7SGuenter Roeck 549d2ecfb7SGuenter Roeck #define PMBUS_FAN_CONFIG_12 0x3A 559d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_1 0x3B 569d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_2 0x3C 579d2ecfb7SGuenter Roeck #define PMBUS_FAN_CONFIG_34 0x3D 589d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_3 0x3E 599d2ecfb7SGuenter Roeck #define PMBUS_FAN_COMMAND_4 0x3F 609d2ecfb7SGuenter Roeck 619d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_FAULT_LIMIT 0x40 629d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_FAULT_RESPONSE 0x41 639d2ecfb7SGuenter Roeck #define PMBUS_VOUT_OV_WARN_LIMIT 0x42 649d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_WARN_LIMIT 0x43 659d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_FAULT_LIMIT 0x44 669d2ecfb7SGuenter Roeck #define PMBUS_VOUT_UV_FAULT_RESPONSE 0x45 679d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_FAULT_LIMIT 0x46 689d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_FAULT_RESPONSE 0x47 699d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_LV_FAULT_LIMIT 0x48 709d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_LV_FAULT_RESPONSE 0x49 719d2ecfb7SGuenter Roeck #define PMBUS_IOUT_OC_WARN_LIMIT 0x4A 729d2ecfb7SGuenter Roeck #define PMBUS_IOUT_UC_FAULT_LIMIT 0x4B 739d2ecfb7SGuenter Roeck #define PMBUS_IOUT_UC_FAULT_RESPONSE 0x4C 749d2ecfb7SGuenter Roeck 759d2ecfb7SGuenter Roeck #define PMBUS_OT_FAULT_LIMIT 0x4F 769d2ecfb7SGuenter Roeck #define PMBUS_OT_FAULT_RESPONSE 0x50 779d2ecfb7SGuenter Roeck #define PMBUS_OT_WARN_LIMIT 0x51 789d2ecfb7SGuenter Roeck #define PMBUS_UT_WARN_LIMIT 0x52 799d2ecfb7SGuenter Roeck #define PMBUS_UT_FAULT_LIMIT 0x53 809d2ecfb7SGuenter Roeck #define PMBUS_UT_FAULT_RESPONSE 0x54 819d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_FAULT_LIMIT 0x55 829d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_FAULT_RESPONSE 0x56 839d2ecfb7SGuenter Roeck #define PMBUS_VIN_OV_WARN_LIMIT 0x57 849d2ecfb7SGuenter Roeck #define PMBUS_VIN_UV_WARN_LIMIT 0x58 859d2ecfb7SGuenter Roeck #define PMBUS_VIN_UV_FAULT_LIMIT 0x59 869d2ecfb7SGuenter Roeck 879d2ecfb7SGuenter Roeck #define PMBUS_IIN_OC_FAULT_LIMIT 0x5B 889d2ecfb7SGuenter Roeck #define PMBUS_IIN_OC_WARN_LIMIT 0x5D 899d2ecfb7SGuenter Roeck 909d2ecfb7SGuenter Roeck #define PMBUS_POUT_OP_FAULT_LIMIT 0x68 919d2ecfb7SGuenter Roeck #define PMBUS_POUT_OP_WARN_LIMIT 0x6A 929d2ecfb7SGuenter Roeck #define PMBUS_PIN_OP_WARN_LIMIT 0x6B 939d2ecfb7SGuenter Roeck 949d2ecfb7SGuenter Roeck #define PMBUS_STATUS_BYTE 0x78 959d2ecfb7SGuenter Roeck #define PMBUS_STATUS_WORD 0x79 969d2ecfb7SGuenter Roeck #define PMBUS_STATUS_VOUT 0x7A 979d2ecfb7SGuenter Roeck #define PMBUS_STATUS_IOUT 0x7B 989d2ecfb7SGuenter Roeck #define PMBUS_STATUS_INPUT 0x7C 999d2ecfb7SGuenter Roeck #define PMBUS_STATUS_TEMPERATURE 0x7D 1009d2ecfb7SGuenter Roeck #define PMBUS_STATUS_CML 0x7E 1019d2ecfb7SGuenter Roeck #define PMBUS_STATUS_OTHER 0x7F 1029d2ecfb7SGuenter Roeck #define PMBUS_STATUS_MFR_SPECIFIC 0x80 1039d2ecfb7SGuenter Roeck #define PMBUS_STATUS_FAN_12 0x81 1049d2ecfb7SGuenter Roeck #define PMBUS_STATUS_FAN_34 0x82 1059d2ecfb7SGuenter Roeck 1069d2ecfb7SGuenter Roeck #define PMBUS_READ_VIN 0x88 1079d2ecfb7SGuenter Roeck #define PMBUS_READ_IIN 0x89 1089d2ecfb7SGuenter Roeck #define PMBUS_READ_VCAP 0x8A 1099d2ecfb7SGuenter Roeck #define PMBUS_READ_VOUT 0x8B 1109d2ecfb7SGuenter Roeck #define PMBUS_READ_IOUT 0x8C 1119d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_1 0x8D 1129d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_2 0x8E 1139d2ecfb7SGuenter Roeck #define PMBUS_READ_TEMPERATURE_3 0x8F 1149d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_1 0x90 1159d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_2 0x91 1169d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_3 0x92 1179d2ecfb7SGuenter Roeck #define PMBUS_READ_FAN_SPEED_4 0x93 1189d2ecfb7SGuenter Roeck #define PMBUS_READ_DUTY_CYCLE 0x94 1199d2ecfb7SGuenter Roeck #define PMBUS_READ_FREQUENCY 0x95 1209d2ecfb7SGuenter Roeck #define PMBUS_READ_POUT 0x96 1219d2ecfb7SGuenter Roeck #define PMBUS_READ_PIN 0x97 1229d2ecfb7SGuenter Roeck 1239d2ecfb7SGuenter Roeck #define PMBUS_REVISION 0x98 1249d2ecfb7SGuenter Roeck #define PMBUS_MFR_ID 0x99 1259d2ecfb7SGuenter Roeck #define PMBUS_MFR_MODEL 0x9A 1269d2ecfb7SGuenter Roeck #define PMBUS_MFR_REVISION 0x9B 1279d2ecfb7SGuenter Roeck #define PMBUS_MFR_LOCATION 0x9C 1289d2ecfb7SGuenter Roeck #define PMBUS_MFR_DATE 0x9D 1299d2ecfb7SGuenter Roeck #define PMBUS_MFR_SERIAL 0x9E 1309d2ecfb7SGuenter Roeck 1319d2ecfb7SGuenter Roeck /* 1326f183d33SGuenter Roeck * Virtual registers. 1336f183d33SGuenter Roeck * Useful to support attributes which are not supported by standard PMBus 1346f183d33SGuenter Roeck * registers but exist as manufacturer specific registers on individual chips. 1356f183d33SGuenter Roeck * Must be mapped to real registers in device specific code. 1366f183d33SGuenter Roeck * 1376f183d33SGuenter Roeck * Semantics: 1386f183d33SGuenter Roeck * Virtual registers are all word size. 1396f183d33SGuenter Roeck * READ registers are read-only; writes are either ignored or return an error. 14020fcfe17SGuenter Roeck * RESET registers are read/write. Reading reset registers returns zero 14120fcfe17SGuenter Roeck * (used for detection), writing any value causes the associated history to be 14220fcfe17SGuenter Roeck * reset. 14320fcfe17SGuenter Roeck * Virtual registers have to be handled in device specific driver code. Chip 14420fcfe17SGuenter Roeck * driver code returns non-negative register values if a virtual register is 14520fcfe17SGuenter Roeck * supported, or a negative error code if not. The chip driver may return 14620fcfe17SGuenter Roeck * -ENODATA or any other error code in this case, though an error code other 14720fcfe17SGuenter Roeck * than -ENODATA is handled more efficiently and thus preferred. Either case, 14820fcfe17SGuenter Roeck * the calling PMBus core code will abort if the chip driver returns an error 14920fcfe17SGuenter Roeck * code when reading or writing virtual registers. 1506f183d33SGuenter Roeck */ 1516f183d33SGuenter Roeck #define PMBUS_VIRT_BASE 0x100 15260b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP_AVG (PMBUS_VIRT_BASE + 0) 15360b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP_MIN (PMBUS_VIRT_BASE + 1) 15460b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP_MAX (PMBUS_VIRT_BASE + 2) 15560b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_TEMP_HISTORY (PMBUS_VIRT_BASE + 3) 15660b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VIN_AVG (PMBUS_VIRT_BASE + 4) 15760b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VIN_MIN (PMBUS_VIRT_BASE + 5) 15860b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VIN_MAX (PMBUS_VIRT_BASE + 6) 15960b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_VIN_HISTORY (PMBUS_VIRT_BASE + 7) 16060b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IIN_AVG (PMBUS_VIRT_BASE + 8) 16160b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IIN_MIN (PMBUS_VIRT_BASE + 9) 16260b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IIN_MAX (PMBUS_VIRT_BASE + 10) 16360b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_IIN_HISTORY (PMBUS_VIRT_BASE + 11) 16460b873e3SGuenter Roeck #define PMBUS_VIRT_READ_PIN_AVG (PMBUS_VIRT_BASE + 12) 16560b873e3SGuenter Roeck #define PMBUS_VIRT_READ_PIN_MAX (PMBUS_VIRT_BASE + 13) 16660b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_PIN_HISTORY (PMBUS_VIRT_BASE + 14) 16760b873e3SGuenter Roeck #define PMBUS_VIRT_READ_POUT_AVG (PMBUS_VIRT_BASE + 15) 16860b873e3SGuenter Roeck #define PMBUS_VIRT_READ_POUT_MAX (PMBUS_VIRT_BASE + 16) 16960b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_POUT_HISTORY (PMBUS_VIRT_BASE + 17) 17060b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_AVG (PMBUS_VIRT_BASE + 18) 17160b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_MIN (PMBUS_VIRT_BASE + 19) 17260b873e3SGuenter Roeck #define PMBUS_VIRT_READ_VOUT_MAX (PMBUS_VIRT_BASE + 20) 17360b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_VOUT_HISTORY (PMBUS_VIRT_BASE + 21) 17460b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_AVG (PMBUS_VIRT_BASE + 22) 17560b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_MIN (PMBUS_VIRT_BASE + 23) 17660b873e3SGuenter Roeck #define PMBUS_VIRT_READ_IOUT_MAX (PMBUS_VIRT_BASE + 24) 17760b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_IOUT_HISTORY (PMBUS_VIRT_BASE + 25) 17860b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP2_AVG (PMBUS_VIRT_BASE + 26) 17960b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP2_MIN (PMBUS_VIRT_BASE + 27) 18060b873e3SGuenter Roeck #define PMBUS_VIRT_READ_TEMP2_MAX (PMBUS_VIRT_BASE + 28) 18160b873e3SGuenter Roeck #define PMBUS_VIRT_RESET_TEMP2_HISTORY (PMBUS_VIRT_BASE + 29) 1826f183d33SGuenter Roeck 183aebcbbfcSGuenter Roeck #define PMBUS_VIRT_READ_VMON (PMBUS_VIRT_BASE + 30) 184aebcbbfcSGuenter Roeck #define PMBUS_VIRT_VMON_UV_WARN_LIMIT (PMBUS_VIRT_BASE + 31) 185aebcbbfcSGuenter Roeck #define PMBUS_VIRT_VMON_OV_WARN_LIMIT (PMBUS_VIRT_BASE + 32) 186aebcbbfcSGuenter Roeck #define PMBUS_VIRT_VMON_UV_FAULT_LIMIT (PMBUS_VIRT_BASE + 33) 187aebcbbfcSGuenter Roeck #define PMBUS_VIRT_VMON_OV_FAULT_LIMIT (PMBUS_VIRT_BASE + 34) 188aebcbbfcSGuenter Roeck #define PMBUS_VIRT_STATUS_VMON (PMBUS_VIRT_BASE + 35) 189aebcbbfcSGuenter Roeck 1906f183d33SGuenter Roeck /* 191*ddbb4db4SAlan Tull * OPERATION 192*ddbb4db4SAlan Tull */ 193*ddbb4db4SAlan Tull #define PB_OPERATION_CONTROL_ON (1<<7) 194*ddbb4db4SAlan Tull 195*ddbb4db4SAlan Tull /* 1969d2ecfb7SGuenter Roeck * CAPABILITY 1979d2ecfb7SGuenter Roeck */ 1989d2ecfb7SGuenter Roeck #define PB_CAPABILITY_SMBALERT (1<<4) 1999d2ecfb7SGuenter Roeck #define PB_CAPABILITY_ERROR_CHECK (1<<7) 2009d2ecfb7SGuenter Roeck 2019d2ecfb7SGuenter Roeck /* 2029d2ecfb7SGuenter Roeck * VOUT_MODE 2039d2ecfb7SGuenter Roeck */ 2049d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_MODE_MASK 0xe0 2059d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_PARAM_MASK 0x1f 2069d2ecfb7SGuenter Roeck 2079d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_LINEAR 0x00 2089d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_VID 0x20 2099d2ecfb7SGuenter Roeck #define PB_VOUT_MODE_DIRECT 0x40 2109d2ecfb7SGuenter Roeck 2119d2ecfb7SGuenter Roeck /* 2129d2ecfb7SGuenter Roeck * Fan configuration 2139d2ecfb7SGuenter Roeck */ 2149d2ecfb7SGuenter Roeck #define PB_FAN_2_PULSE_MASK ((1 << 0) | (1 << 1)) 2159d2ecfb7SGuenter Roeck #define PB_FAN_2_RPM (1 << 2) 2169d2ecfb7SGuenter Roeck #define PB_FAN_2_INSTALLED (1 << 3) 2179d2ecfb7SGuenter Roeck #define PB_FAN_1_PULSE_MASK ((1 << 4) | (1 << 5)) 2189d2ecfb7SGuenter Roeck #define PB_FAN_1_RPM (1 << 6) 2199d2ecfb7SGuenter Roeck #define PB_FAN_1_INSTALLED (1 << 7) 2209d2ecfb7SGuenter Roeck 2219d2ecfb7SGuenter Roeck /* 2229d2ecfb7SGuenter Roeck * STATUS_BYTE, STATUS_WORD (lower) 2239d2ecfb7SGuenter Roeck */ 2249d2ecfb7SGuenter Roeck #define PB_STATUS_NONE_ABOVE (1<<0) 2259d2ecfb7SGuenter Roeck #define PB_STATUS_CML (1<<1) 2269d2ecfb7SGuenter Roeck #define PB_STATUS_TEMPERATURE (1<<2) 2279d2ecfb7SGuenter Roeck #define PB_STATUS_VIN_UV (1<<3) 2289d2ecfb7SGuenter Roeck #define PB_STATUS_IOUT_OC (1<<4) 2299d2ecfb7SGuenter Roeck #define PB_STATUS_VOUT_OV (1<<5) 2309d2ecfb7SGuenter Roeck #define PB_STATUS_OFF (1<<6) 2319d2ecfb7SGuenter Roeck #define PB_STATUS_BUSY (1<<7) 2329d2ecfb7SGuenter Roeck 2339d2ecfb7SGuenter Roeck /* 2349d2ecfb7SGuenter Roeck * STATUS_WORD (upper) 2359d2ecfb7SGuenter Roeck */ 2369d2ecfb7SGuenter Roeck #define PB_STATUS_UNKNOWN (1<<8) 2379d2ecfb7SGuenter Roeck #define PB_STATUS_OTHER (1<<9) 2389d2ecfb7SGuenter Roeck #define PB_STATUS_FANS (1<<10) 2399d2ecfb7SGuenter Roeck #define PB_STATUS_POWER_GOOD_N (1<<11) 2409d2ecfb7SGuenter Roeck #define PB_STATUS_WORD_MFR (1<<12) 2419d2ecfb7SGuenter Roeck #define PB_STATUS_INPUT (1<<13) 2429d2ecfb7SGuenter Roeck #define PB_STATUS_IOUT_POUT (1<<14) 2439d2ecfb7SGuenter Roeck #define PB_STATUS_VOUT (1<<15) 2449d2ecfb7SGuenter Roeck 2459d2ecfb7SGuenter Roeck /* 2469d2ecfb7SGuenter Roeck * STATUS_IOUT 2479d2ecfb7SGuenter Roeck */ 2489d2ecfb7SGuenter Roeck #define PB_POUT_OP_WARNING (1<<0) 2499d2ecfb7SGuenter Roeck #define PB_POUT_OP_FAULT (1<<1) 2509d2ecfb7SGuenter Roeck #define PB_POWER_LIMITING (1<<2) 2519d2ecfb7SGuenter Roeck #define PB_CURRENT_SHARE_FAULT (1<<3) 2529d2ecfb7SGuenter Roeck #define PB_IOUT_UC_FAULT (1<<4) 2539d2ecfb7SGuenter Roeck #define PB_IOUT_OC_WARNING (1<<5) 2549d2ecfb7SGuenter Roeck #define PB_IOUT_OC_LV_FAULT (1<<6) 2559d2ecfb7SGuenter Roeck #define PB_IOUT_OC_FAULT (1<<7) 2569d2ecfb7SGuenter Roeck 2579d2ecfb7SGuenter Roeck /* 2589d2ecfb7SGuenter Roeck * STATUS_VOUT, STATUS_INPUT 2599d2ecfb7SGuenter Roeck */ 2609d2ecfb7SGuenter Roeck #define PB_VOLTAGE_UV_FAULT (1<<4) 2619d2ecfb7SGuenter Roeck #define PB_VOLTAGE_UV_WARNING (1<<5) 2629d2ecfb7SGuenter Roeck #define PB_VOLTAGE_OV_WARNING (1<<6) 2639d2ecfb7SGuenter Roeck #define PB_VOLTAGE_OV_FAULT (1<<7) 2649d2ecfb7SGuenter Roeck 2659d2ecfb7SGuenter Roeck /* 2669d2ecfb7SGuenter Roeck * STATUS_INPUT 2679d2ecfb7SGuenter Roeck */ 2689d2ecfb7SGuenter Roeck #define PB_PIN_OP_WARNING (1<<0) 2699d2ecfb7SGuenter Roeck #define PB_IIN_OC_WARNING (1<<1) 2709d2ecfb7SGuenter Roeck #define PB_IIN_OC_FAULT (1<<2) 2719d2ecfb7SGuenter Roeck 2729d2ecfb7SGuenter Roeck /* 2739d2ecfb7SGuenter Roeck * STATUS_TEMPERATURE 2749d2ecfb7SGuenter Roeck */ 2759d2ecfb7SGuenter Roeck #define PB_TEMP_UT_FAULT (1<<4) 2769d2ecfb7SGuenter Roeck #define PB_TEMP_UT_WARNING (1<<5) 2779d2ecfb7SGuenter Roeck #define PB_TEMP_OT_WARNING (1<<6) 2789d2ecfb7SGuenter Roeck #define PB_TEMP_OT_FAULT (1<<7) 2799d2ecfb7SGuenter Roeck 2809d2ecfb7SGuenter Roeck /* 2819d2ecfb7SGuenter Roeck * STATUS_FAN 2829d2ecfb7SGuenter Roeck */ 2839d2ecfb7SGuenter Roeck #define PB_FAN_AIRFLOW_WARNING (1<<0) 2849d2ecfb7SGuenter Roeck #define PB_FAN_AIRFLOW_FAULT (1<<1) 2859d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_SPEED_OVERRIDE (1<<2) 2869d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_SPEED_OVERRIDE (1<<3) 2879d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_WARNING (1<<4) 2889d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_WARNING (1<<5) 2899d2ecfb7SGuenter Roeck #define PB_FAN_FAN2_FAULT (1<<6) 2909d2ecfb7SGuenter Roeck #define PB_FAN_FAN1_FAULT (1<<7) 2919d2ecfb7SGuenter Roeck 2929d2ecfb7SGuenter Roeck /* 2939d2ecfb7SGuenter Roeck * CML_FAULT_STATUS 2949d2ecfb7SGuenter Roeck */ 2959d2ecfb7SGuenter Roeck #define PB_CML_FAULT_OTHER_MEM_LOGIC (1<<0) 2969d2ecfb7SGuenter Roeck #define PB_CML_FAULT_OTHER_COMM (1<<1) 2979d2ecfb7SGuenter Roeck #define PB_CML_FAULT_PROCESSOR (1<<3) 2989d2ecfb7SGuenter Roeck #define PB_CML_FAULT_MEMORY (1<<4) 2999d2ecfb7SGuenter Roeck #define PB_CML_FAULT_PACKET_ERROR (1<<5) 3009d2ecfb7SGuenter Roeck #define PB_CML_FAULT_INVALID_DATA (1<<6) 3019d2ecfb7SGuenter Roeck #define PB_CML_FAULT_INVALID_COMMAND (1<<7) 3029d2ecfb7SGuenter Roeck 3039d2ecfb7SGuenter Roeck enum pmbus_sensor_classes { 3049d2ecfb7SGuenter Roeck PSC_VOLTAGE_IN = 0, 3059d2ecfb7SGuenter Roeck PSC_VOLTAGE_OUT, 3069d2ecfb7SGuenter Roeck PSC_CURRENT_IN, 3079d2ecfb7SGuenter Roeck PSC_CURRENT_OUT, 3089d2ecfb7SGuenter Roeck PSC_POWER, 3099d2ecfb7SGuenter Roeck PSC_TEMPERATURE, 3109d2ecfb7SGuenter Roeck PSC_FAN, 3119d2ecfb7SGuenter Roeck PSC_NUM_CLASSES /* Number of power sensor classes */ 3129d2ecfb7SGuenter Roeck }; 3139d2ecfb7SGuenter Roeck 3149d2ecfb7SGuenter Roeck #define PMBUS_PAGES 32 /* Per PMBus specification */ 3159d2ecfb7SGuenter Roeck 3169d2ecfb7SGuenter Roeck /* Functionality bit mask */ 3179d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VIN (1 << 0) 3189d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VCAP (1 << 1) 3199d2ecfb7SGuenter Roeck #define PMBUS_HAVE_VOUT (1 << 2) 3209d2ecfb7SGuenter Roeck #define PMBUS_HAVE_IIN (1 << 3) 3219d2ecfb7SGuenter Roeck #define PMBUS_HAVE_IOUT (1 << 4) 3229d2ecfb7SGuenter Roeck #define PMBUS_HAVE_PIN (1 << 5) 3239d2ecfb7SGuenter Roeck #define PMBUS_HAVE_POUT (1 << 6) 3249d2ecfb7SGuenter Roeck #define PMBUS_HAVE_FAN12 (1 << 7) 3259d2ecfb7SGuenter Roeck #define PMBUS_HAVE_FAN34 (1 << 8) 3269d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP (1 << 9) 3279d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP2 (1 << 10) 3289d2ecfb7SGuenter Roeck #define PMBUS_HAVE_TEMP3 (1 << 11) 3299d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_VOUT (1 << 12) 3309d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_IOUT (1 << 13) 3319d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_INPUT (1 << 14) 3329d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_TEMP (1 << 15) 3339d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_FAN12 (1 << 16) 3349d2ecfb7SGuenter Roeck #define PMBUS_HAVE_STATUS_FAN34 (1 << 17) 335aebcbbfcSGuenter Roeck #define PMBUS_HAVE_VMON (1 << 18) 336aebcbbfcSGuenter Roeck #define PMBUS_HAVE_STATUS_VMON (1 << 19) 3379d2ecfb7SGuenter Roeck 3381061d851SGuenter Roeck enum pmbus_data_format { linear = 0, direct, vid }; 3391061d851SGuenter Roeck 3409d2ecfb7SGuenter Roeck struct pmbus_driver_info { 3419d2ecfb7SGuenter Roeck int pages; /* Total number of pages */ 3421061d851SGuenter Roeck enum pmbus_data_format format[PSC_NUM_CLASSES]; 3439d2ecfb7SGuenter Roeck /* 3449d2ecfb7SGuenter Roeck * Support one set of coefficients for each sensor type 3459d2ecfb7SGuenter Roeck * Used for chips providing data in direct mode. 3469d2ecfb7SGuenter Roeck */ 3479d2ecfb7SGuenter Roeck int m[PSC_NUM_CLASSES]; /* mantissa for direct data format */ 3489d2ecfb7SGuenter Roeck int b[PSC_NUM_CLASSES]; /* offset */ 3499d2ecfb7SGuenter Roeck int R[PSC_NUM_CLASSES]; /* exponent */ 3509d2ecfb7SGuenter Roeck 3519d2ecfb7SGuenter Roeck u32 func[PMBUS_PAGES]; /* Functionality, per page */ 3529d2ecfb7SGuenter Roeck /* 3539d2ecfb7SGuenter Roeck * The following functions map manufacturing specific register values 3549d2ecfb7SGuenter Roeck * to PMBus standard register values. Specify only if mapping is 3559d2ecfb7SGuenter Roeck * necessary. 35620fcfe17SGuenter Roeck * Functions return the register value (read) or zero (write) if 35720fcfe17SGuenter Roeck * successful. A return value of -ENODATA indicates that there is no 35820fcfe17SGuenter Roeck * manufacturer specific register, but that a standard PMBus register 35920fcfe17SGuenter Roeck * may exist. Any other negative return value indicates that the 36020fcfe17SGuenter Roeck * register does not exist, and that no attempt should be made to read 36120fcfe17SGuenter Roeck * the standard register. 3629d2ecfb7SGuenter Roeck */ 3639d2ecfb7SGuenter Roeck int (*read_byte_data)(struct i2c_client *client, int page, int reg); 36446243f3aSGuenter Roeck int (*read_word_data)(struct i2c_client *client, int page, int reg); 36546243f3aSGuenter Roeck int (*write_word_data)(struct i2c_client *client, int page, int reg, 36646243f3aSGuenter Roeck u16 word); 367044cd3a5SGuenter Roeck int (*write_byte)(struct i2c_client *client, int page, u8 value); 3689d2ecfb7SGuenter Roeck /* 3699d2ecfb7SGuenter Roeck * The identify function determines supported PMBus functionality. 3709d2ecfb7SGuenter Roeck * This function is only necessary if a chip driver supports multiple 3719d2ecfb7SGuenter Roeck * chips, and the chip functionality is not pre-determined. 3729d2ecfb7SGuenter Roeck */ 3739d2ecfb7SGuenter Roeck int (*identify)(struct i2c_client *client, 3749d2ecfb7SGuenter Roeck struct pmbus_driver_info *info); 375*ddbb4db4SAlan Tull 376*ddbb4db4SAlan Tull /* Regulator functionality, if supported by this chip driver. */ 377*ddbb4db4SAlan Tull int num_regulators; 378*ddbb4db4SAlan Tull const struct regulator_desc *reg_desc; 3799d2ecfb7SGuenter Roeck }; 3809d2ecfb7SGuenter Roeck 381*ddbb4db4SAlan Tull /* Regulator ops */ 382*ddbb4db4SAlan Tull 383*ddbb4db4SAlan Tull extern struct regulator_ops pmbus_regulator_ops; 384*ddbb4db4SAlan Tull 385*ddbb4db4SAlan Tull /* Macro for filling in array of struct regulator_desc */ 386*ddbb4db4SAlan Tull #define PMBUS_REGULATOR(_name, _id) \ 387*ddbb4db4SAlan Tull [_id] = { \ 388*ddbb4db4SAlan Tull .name = (_name # _id), \ 389*ddbb4db4SAlan Tull .id = (_id), \ 390*ddbb4db4SAlan Tull .of_match = of_match_ptr(_name # _id), \ 391*ddbb4db4SAlan Tull .regulators_node = of_match_ptr("regulators"), \ 392*ddbb4db4SAlan Tull .ops = &pmbus_regulator_ops, \ 393*ddbb4db4SAlan Tull .owner = THIS_MODULE, \ 394*ddbb4db4SAlan Tull } 395*ddbb4db4SAlan Tull 3969d2ecfb7SGuenter Roeck /* Function declarations */ 3979d2ecfb7SGuenter Roeck 398ce603b18SGuenter Roeck void pmbus_clear_cache(struct i2c_client *client); 3999d2ecfb7SGuenter Roeck int pmbus_set_page(struct i2c_client *client, u8 page); 4009d2ecfb7SGuenter Roeck int pmbus_read_word_data(struct i2c_client *client, u8 page, u8 reg); 40146243f3aSGuenter Roeck int pmbus_write_word_data(struct i2c_client *client, u8 page, u8 reg, u16 word); 4029c1ed894SGuenter Roeck int pmbus_read_byte_data(struct i2c_client *client, int page, u8 reg); 40303e9bd8dSGuenter Roeck int pmbus_write_byte(struct i2c_client *client, int page, u8 value); 40411c11998SAlan Tull int pmbus_write_byte_data(struct i2c_client *client, int page, u8 reg, 40511c11998SAlan Tull u8 value); 40611c11998SAlan Tull int pmbus_update_byte_data(struct i2c_client *client, int page, u8 reg, 40711c11998SAlan Tull u8 mask, u8 value); 4089d2ecfb7SGuenter Roeck void pmbus_clear_faults(struct i2c_client *client); 4099d2ecfb7SGuenter Roeck bool pmbus_check_byte_register(struct i2c_client *client, int page, int reg); 4109d2ecfb7SGuenter Roeck bool pmbus_check_word_register(struct i2c_client *client, int page, int reg); 4119d2ecfb7SGuenter Roeck int pmbus_do_probe(struct i2c_client *client, const struct i2c_device_id *id, 4129d2ecfb7SGuenter Roeck struct pmbus_driver_info *info); 413dd285ad7SGuenter Roeck int pmbus_do_remove(struct i2c_client *client); 4149d2ecfb7SGuenter Roeck const struct pmbus_driver_info *pmbus_get_driver_info(struct i2c_client 4159d2ecfb7SGuenter Roeck *client); 4169d2ecfb7SGuenter Roeck 4179d2ecfb7SGuenter Roeck #endif /* PMBUS_H */ 418