1 .. SPDX-License-Identifier: GPL-2.0 2 3 Kernel driver lt7182s 4 ===================== 5 6 Supported chips: 7 8 * ADI LT7182S 9 10 Prefix: 'lt7182s' 11 12 Addresses scanned: - 13 14 Datasheet: https://www.analog.com/en/products/lt7182s.html 15 16 Author: Guenter Roeck <linux@roeck-us.net> 17 18 19 Description 20 ----------- 21 22 LT7182S is a Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher with 23 Digital Power System Management support. 24 25 26 Usage Notes 27 ----------- 28 29 This driver does not probe for PMBus devices. You will have to instantiate 30 devices explicitly. 31 32 Example: the following commands will load the driver for a LT7182S 33 at address 0x4f on I2C bus #4:: 34 35 # modprobe lt7182s 36 # echo lt7182s 0x4f > /sys/bus/i2c/devices/i2c-4/new_device 37 38 It can also be instantiated by declaring an entry in device tree. 39 40 41 Sysfs attributes 42 ---------------- 43 44 ======================= ==================================== 45 curr[1-2]_label "iin[12]" 46 curr[1-2]_input Measured input current 47 curr[1-2]_max Maximum input current 48 curr[1-2]_max_alarm Current high alarm 49 50 curr[3-4]_label "iout[1-2]" 51 curr[3-4]_input Measured output current 52 curr[3-4]_highest Highest measured output current 53 curr[3-4]_max Maximum output current 54 curr[3-4]_max_alarm Output current high alarm 55 56 in[1-2]_label "vin[12]" 57 in[1-2]_input Measured input voltage 58 in[1-2]_highest Highest measured input voltage 59 in[1-2]_crit Critical maximum input voltage 60 in[1-2]_crit_alarm Input voltage critical high alarm 61 in[1-2]_min Minimum input voltage 62 in[1-2]_min_alarm Input voltage low alarm 63 in[1-2]_rated_min Rated minimum input voltage 64 in[1-2]_rated_max Rated maximum input voltage 65 in1_reset_history Write to reset history for all attributes 66 67 in[3-5]_label "vmon[1-3]" 68 in[3-5]_input Measured voltage on ITH1/ITH2/EXTVCC pins 69 Only available if enabled with MFR_ADC_CONTROL_LT7182S 70 command. 71 72 in[3-4|6-7]_label "vout[1-2]" 73 in[3-4|6-7]_input Measured output voltage 74 in[3-4|6-7]_highest Highest measured output voltage 75 in[3-4|6-7]_lcrit Critical minimum output voltage 76 in[3-4|6-7]_lcrit_alarm Output voltage critical low alarm 77 in[3-4|6-7]_min Minimum output voltage 78 in[3-4|6-7]_max_alarm Output voltage low alarm 79 in[3-4|6-7]_max Maximum output voltage 80 in[3-4|6-7]_max_alarm Output voltage high alarm 81 in[3-4|6-7]_crit Critical maximum output voltage 82 in[3-4|6-7]_crit_alarm Output voltage critical high alarm 83 84 power[1-2]_label "pout[1-2]" 85 power[1-2]_input Measured output power 86 87 temp1_input Measured temperature 88 temp1_crit Critical high temperature 89 temp1_crit_alarm Chip temperature critical high alarm 90 temp1_max Maximum temperature 91 temp1_max_alarm Chip temperature high alarm 92 ======================= ====================================
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.