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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 | Kernel driver zl6100 ==================== Supported chips: * Renesas / Intersil / Zilker Labs ZL2004 Prefix: 'zl2004' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2004-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL2005 Prefix: 'zl2005' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2005-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL2006 Prefix: 'zl2006' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2006-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL2008 Prefix: 'zl2008' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2008-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL2105 Prefix: 'zl2105' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2105-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL2106 Prefix: 'zl2106' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl2106-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL6100 Prefix: 'zl6100' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl6100-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL6105 Prefix: 'zl6105' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl6105-datasheet.pdf * Renesas / Intersil / Zilker Labs ZL8802 Prefix: 'zl8802' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl8802-datasheet * Renesas / Intersil / Zilker Labs ZL9101M Prefix: 'zl9101' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl9101m-datasheet * Renesas / Intersil / Zilker Labs ZL9117M Prefix: 'zl9117' Addresses scanned: - Datasheet: https://www.renesas.com/us/en/document/dst/zl9117m-datasheet * Renesas / Intersil / Zilker Labs ZLS1003, ZLS4009 Prefix: 'zls1003', zls4009 Addresses scanned: - Datasheet: Not published * Flex BMR450, BMR451 Prefix: 'bmr450', 'bmr451' Addresses scanned: - Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr450-digital-pol-regulators-20a * Flex BMR462, BMR463, BMR464 Prefixes: 'bmr462', 'bmr463', 'bmr464' Addresses scanned: - Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr462 * Flex BMR465, BMR467 Prefixes: 'bmr465', 'bmr467' Addresses scanned: - Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr465-digital-pol * Flex BMR466 Prefixes: 'bmr466' Addresses scanned: - Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr466-8x12 * Flex BMR469 Prefixes: 'bmr469' Addresses scanned: - Datasheet: https://flexpowermodules.com/resources/fpm-techspec-bmr4696001 Author: Guenter Roeck <linux@roeck-us.net> Description ----------- This driver supports hardware monitoring for Renesas / Intersil / Zilker Labs ZL6100 and compatible digital DC-DC controllers. The driver is a client driver to the core PMBus driver. Please see Documentation/hwmon/pmbus.rst and Documentation.hwmon/pmbus-core for details on PMBus client drivers. Usage Notes ----------- This driver does not auto-detect devices. You will have to instantiate the devices explicitly. Please see Documentation/i2c/instantiating-devices.rst for details. .. warning:: Do not access chip registers using the i2cdump command, and do not use any of the i2ctools commands on a command register used to save and restore configuration data (0x11, 0x12, 0x15, 0x16, and 0xf4). The chips supported by this driver interpret any access to those command registers (including read commands) as request to execute the command in question. Unless write accesses to those registers are protected, this may result in power loss, board resets, and/or Flash corruption. Worst case, your board may turn into a brick. Platform data support --------------------- The driver supports standard PMBus driver platform data. Module parameters ----------------- delay ----- Renesas/Intersil/Zilker Labs DC-DC controllers require a minimum interval between I2C bus accesses. According to Intersil, the minimum interval is 2 ms, though 1 ms appears to be sufficient and has not caused any problems in testing. The problem is known to affect all currently supported chips. For manual override, the driver provides a writeable module parameter, 'delay', which can be used to set the interval to a value between 0 and 65,535 microseconds. Sysfs entries ------------- The following attributes are supported. Limits are read-write; all other attributes are read-only. ======================= ======================================================== in1_label "vin" in1_input Measured input voltage. in1_min Minimum input voltage. in1_max Maximum input voltage. in1_lcrit Critical minimum input voltage. in1_crit Critical maximum input voltage. in1_min_alarm Input voltage low alarm. in1_max_alarm Input voltage high alarm. in1_lcrit_alarm Input voltage critical low alarm. in1_crit_alarm Input voltage critical high alarm. in2_label "vmon" in2_input Measured voltage on VMON (ZL2004) or VDRV (ZL9101M, ZL9117M) pin. Reported voltage is 16x the voltage on the pin (adjusted internally by the chip). in2_lcrit Critical minimum VMON/VDRV Voltage. in2_crit Critical maximum VMON/VDRV voltage. in2_lcrit_alarm VMON/VDRV voltage critical low alarm. in2_crit_alarm VMON/VDRV voltage critical high alarm. vmon attributes are supported on ZL2004, ZL8802, ZL9101M, ZL9117M and ZLS4009 only. inX_label "vout[12]" inX_input Measured output voltage. inX_lcrit Critical minimum output Voltage. inX_crit Critical maximum output voltage. inX_lcrit_alarm Critical output voltage critical low alarm. inX_crit_alarm Critical output voltage critical high alarm. X is 3 for ZL2004, ZL9101M, and ZL9117M, 3, 4 for ZL8802 and 2 otherwise. curr1_label "iin" curr1_input Measured input current. iin attributes are supported on ZL8802 only currY_label "iout[12]" currY_input Measured output current. currY_lcrit Critical minimum output current. currY_crit Critical maximum output current. currY_lcrit_alarm Output current critical low alarm. currY_crit_alarm Output current critical high alarm. Y is 2, 3 for ZL8802, 1 otherwise temp[12]_input Measured temperature. temp[12]_min Minimum temperature. temp[12]_max Maximum temperature. temp[12]_lcrit Critical low temperature. temp[12]_crit Critical high temperature. temp[12]_min_alarm Chip temperature low alarm. temp[12]_max_alarm Chip temperature high alarm. temp[12]_lcrit_alarm Chip temperature critical low alarm. temp[12]_crit_alarm Chip temperature critical high alarm. ======================= ======================================================== |