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- .. SPDX-License-Identifier: GPL-2.0
- Kernel driver lt7182s
- =====================
- Supported chips:
- * ADI LT7182S
- Prefix: 'lt7182s'
- Addresses scanned: -
- Datasheet: https://www.analog.com/en/products/lt7182s.html
- Author: Guenter Roeck <[email protected]>
- Description
- -----------
- LT7182S is a Dual Channel 6A, 20V PolyPhase Step-Down Silent Switcher with
- Digital Power System Management support.
- Usage Notes
- -----------
- This driver does not probe for PMBus devices. You will have to instantiate
- devices explicitly.
- Example: the following commands will load the driver for a LT7182S
- at address 0x4f on I2C bus #4::
- # modprobe lt7182s
- # echo lt7182s 0x4f > /sys/bus/i2c/devices/i2c-4/new_device
- It can also be instantiated by declaring an entry in device tree.
- Sysfs attributes
- ----------------
- ======================= ====================================
- curr[1-2]_label "iin[12]"
- curr[1-2]_input Measured input current
- curr[1-2]_max Maximum input current
- curr[1-2]_max_alarm Current high alarm
- curr[3-4]_label "iout[1-2]"
- curr[3-4]_input Measured output current
- curr[3-4]_highest Highest measured output current
- curr[3-4]_max Maximum output current
- curr[3-4]_max_alarm Output current high alarm
- in[1-2]_label "vin[12]"
- in[1-2]_input Measured input voltage
- in[1-2]_highest Highest measured input voltage
- in[1-2]_crit Critical maximum input voltage
- in[1-2]_crit_alarm Input voltage critical high alarm
- in[1-2]_min Minimum input voltage
- in[1-2]_min_alarm Input voltage low alarm
- in[1-2]_rated_min Rated minimum input voltage
- in[1-2]_rated_max Rated maximum input voltage
- in1_reset_history Write to reset history for all attributes
- in[3-5]_label "vmon[1-3]"
- in[3-5]_input Measured voltage on ITH1/ITH2/EXTVCC pins
- Only available if enabled with MFR_ADC_CONTROL_LT7182S
- command.
- in[3-4|6-7]_label "vout[1-2]"
- in[3-4|6-7]_input Measured output voltage
- in[3-4|6-7]_highest Highest measured output voltage
- in[3-4|6-7]_lcrit Critical minimum output voltage
- in[3-4|6-7]_lcrit_alarm Output voltage critical low alarm
- in[3-4|6-7]_min Minimum output voltage
- in[3-4|6-7]_max_alarm Output voltage low alarm
- in[3-4|6-7]_max Maximum output voltage
- in[3-4|6-7]_max_alarm Output voltage high alarm
- in[3-4|6-7]_crit Critical maximum output voltage
- in[3-4|6-7]_crit_alarm Output voltage critical high alarm
- power[1-2]_label "pout[1-2]"
- power[1-2]_input Measured output power
- temp1_input Measured temperature
- temp1_crit Critical high temperature
- temp1_crit_alarm Chip temperature critical high alarm
- temp1_max Maximum temperature
- temp1_max_alarm Chip temperature high alarm
- ======================= ====================================
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