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102 lines
2.3 KiB
102 lines
2.3 KiB
.. SPDX-License-Identifier: GPL-2.0 |
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Kernel driver xdpe122 |
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===================== |
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Supported chips: |
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* Infineon XDPE12254 |
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Prefix: 'xdpe12254' |
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* Infineon XDPE12284 |
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Prefix: 'xdpe12284' |
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Authors: |
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Vadim Pasternak <[email protected]> |
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Description |
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----------- |
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This driver implements support for Infineon Multi-phase XDPE122 family |
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dual loop voltage regulators. |
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The family includes XDPE12284 and XDPE12254 devices. |
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The devices from this family complaint with: |
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- Intel VR13 and VR13HC rev 1.3, IMVP8 rev 1.2 and IMPVP9 rev 1.3 DC-DC |
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converter specification. |
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- Intel SVID rev 1.9. protocol. |
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- PMBus rev 1.3 interface. |
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Devices support linear format for reading input voltage, input and output current, |
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input and output power and temperature. |
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Device supports VID format for reading output voltage. The below modes are |
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supported: |
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- VR12.0 mode, 5-mV DAC - 0x01. |
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- VR12.5 mode, 10-mV DAC - 0x02. |
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- IMVP9 mode, 5-mV DAC - 0x03. |
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- AMD mode 6.25mV - 0x10. |
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Devices support two pages for telemetry. |
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The driver provides for current: input, maximum and critical thresholds |
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and maximum and critical alarms. Critical thresholds and critical alarm are |
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supported only for current output. |
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The driver exports the following attributes for via the sysfs files, where |
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indexes 1, 2 are for "iin" and 3, 4 for "iout": |
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**curr[3-4]_crit** |
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**curr[3-4]_crit_alarm** |
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**curr[1-4]_input** |
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**curr[1-4]_label** |
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**curr[1-4]_max** |
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**curr[1-4]_max_alarm** |
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The driver provides for voltage: input, critical and low critical thresholds |
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and critical and low critical alarms. |
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The driver exports the following attributes for via the sysfs files, where |
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indexes 1, 2 are for "vin" and 3, 4 for "vout": |
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**in[1-4]_crit** |
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**in[1-4_crit_alarm** |
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**in[1-4]_input** |
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**in[1-4_label** |
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**in[1-4]_lcrit** |
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**in[1-41_lcrit_alarm** |
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The driver provides for power: input and alarms. Power alarm is supported only |
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for power input. |
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The driver exports the following attributes for via the sysfs files, where |
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indexes 1, 2 are for "pin" and 3, 4 for "pout": |
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**power[1-2]_alarm** |
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**power[1-4]_input** |
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**power[1-4]_label** |
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The driver provides for temperature: input, maximum and critical thresholds |
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and maximum and critical alarms. |
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The driver exports the following attributes for via the sysfs files: |
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**temp[1-2]_crit** |
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**temp[1-2]_crit_alarm** |
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**temp[1-2]_input** |
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**temp[1-2]_max** |
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**temp[1-2]_max_alarm**
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