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cb3d37b590
Add support for TI TPS53676 controller to the tps53679 pmbus driver The driver uses the USER_DATA_03 register to figure out how many phases are enabled and to which channel they are assigned, and sets the number of pages and phases accordingly. Signed-off-by: Erik Rosen <erik.rosen@metormote.com> Link: https://lore.kernel.org/r/20210322193734.75127-3-erik.rosen@metormote.com Signed-off-by: Guenter Roeck <linux@roeck-us.net>
188 lines
3.7 KiB
ReStructuredText
188 lines
3.7 KiB
ReStructuredText
Kernel driver tps53679
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======================
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Supported chips:
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* Texas Instruments TPS53647
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Prefix: 'tps53647'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/tps53647
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* Texas Instruments TPS53667
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Prefix: 'tps53667'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/TPS53667
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* Texas Instruments TPS53676
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Prefix: 'tps53676'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/TPS53676
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* Texas Instruments TPS53679
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Prefix: 'tps53679'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/TPS53679 (short version)
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* Texas Instruments TPS53681
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Prefix: 'tps53681'
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Addresses scanned: -
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Datasheet: https://www.ti.com/lit/gpn/TPS53681
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* Texas Instruments TPS53688
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Prefix: 'tps53688'
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Addresses scanned: -
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Datasheet: Available under NDA
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Authors:
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Vadim Pasternak <vadimp@mellanox.com>
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Guenter Roeck <linux@roeck-us.net>
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Description
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-----------
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Chips in this series are multi-phase step-down converters with one or two
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output channels and up to 8 phases per channel.
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Usage Notes
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-----------
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This driver does not probe for PMBus devices. You will have to instantiate
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devices explicitly.
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Example: the following commands will load the driver for an TPS53681 at address
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0x60 on I2C bus #1::
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# modprobe tps53679
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# echo tps53681 0x60 > /sys/bus/i2c/devices/i2c-1/new_device
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Sysfs attributes
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----------------
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======================= ========================================================
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in1_label "vin"
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in1_input Measured input voltage.
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in1_lcrit Critical minimum input voltage
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TPS53679, TPS53681, TPS53688 only.
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in1_lcrit_alarm Input voltage critical low alarm.
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TPS53679, TPS53681, TPS53688 only.
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in1_crit Critical maximum input voltage.
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in1_crit_alarm Input voltage critical high alarm.
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in[N]_label "vout[1-2]"
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- TPS53647, TPS53667: N=2
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- TPS53679, TPS53588: N=2,3
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in[N]_input Measured output voltage.
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in[N]_lcrit Critical minimum input voltage.
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TPS53679, TPS53681, TPS53688 only.
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in[N]_lcrit_alarm Critical minimum voltage alarm.
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TPS53679, TPS53681, TPS53688 only.
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in[N]_alarm Output voltage alarm.
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TPS53647, TPS53667 only.
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in[N]_crit Critical maximum output voltage.
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TPS53679, TPS53681, TPS53688 only.
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in[N]_crit_alarm Output voltage critical high alarm.
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TPS53679, TPS53681, TPS53688 only.
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temp[N]_input Measured temperature.
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- TPS53647, TPS53667: N=1
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- TPS53679, TPS53681, TPS53588: N=1,2
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temp[N]_max Maximum temperature.
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temp[N]_crit Critical high temperature.
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temp[N]_max_alarm Temperature high alarm.
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temp[N]_crit_alarm Temperature critical high alarm.
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power1_label "pin".
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power1_input Measured input power.
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power[N]_label "pout[1-2]".
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- TPS53647, TPS53667: N=2
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- TPS53676, TPS53679, TPS53681, TPS53588: N=2,3
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power[N]_input Measured output power.
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curr1_label "iin".
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curr1_input Measured input current.
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curr1_max Maximum input current.
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curr1_max_alarm Input current high alarm.
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curr1_crit Critical input current.
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curr1_crit_alarm Input current critical alarm.
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curr[N]_label "iout[1-2]" or "iout1.[0-5]".
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The first digit is the output channel, the second
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digit is the phase within the channel. Per-phase
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telemetry supported on TPS53676 and TPS53681 only.
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- TPS53647, TPS53667: N=2
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- TPS53679, TPS53588: N=2,3
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- TPS53676: N=2-8
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- TPS53681: N=2-9
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curr[N]_input Measured output current.
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curr[N]_max Maximum output current.
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curr[N]_crit Critical high output current.
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curr[N]_max_alarm Output current high alarm.
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curr[N]_crit_alarm Output current critical high alarm.
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Limit and alarm attributes are only available for
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non-phase telemetry (iout1, iout2).
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======================= ========================================================
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