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f20b4a9311
Add support for mpq8785 device from Monolithic Power Systems, Inc. (MPS) vendor. This is synchronous step-down controller. Signed-off-by: Charles Hsu <ythsu0511@gmail.com> Link: https://lore.kernel.org/r/20240131074822.2962078-2-ythsu0511@gmail.com [groeck: probe_new --> probe; add MODULE_IMPORT_NS(PMBUS)] Signed-off-by: Guenter Roeck <linux@roeck-us.net>
95 lines
1.9 KiB
ReStructuredText
95 lines
1.9 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0-only
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Kernel driver mpq8785
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=======================
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Supported chips:
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* MPS MPQ8785
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Prefix: 'mpq8785'
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Author: Charles Hsu <ythsu0511@gmail.com>
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Description
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-----------
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The MPQ8785 is a fully integrated, PMBus-compatible, high-frequency, synchronous
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buck converter. The MPQ8785 offers a very compact solution that achieves up to
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40A output current per phase, with excellent load and line regulation over a
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wide input supply range. The MPQ8785 operates at high efficiency over a wide
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output current load range.
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The PMBus interface provides converter configurations and key parameters
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monitoring.
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The MPQ8785 adopts MPS's proprietary multi-phase digital constant-on-time (MCOT)
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control, which provides fast transient response and eases loop stabilization.
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The MCOT scheme also allows multiple MPQ8785 devices to be connected in parallel
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with excellent current sharing and phase interleaving for high-current
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applications.
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Fully integrated protection features include over-current protection (OCP),
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over-voltage protection (OVP), under-voltage protection (UVP), and
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over-temperature protection (OTP).
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The MPQ8785 requires a minimal number of readily available, standard external
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components, and is available in a TLGA (5mmx6mm) package.
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Device compliant with:
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- PMBus rev 1.3 interface.
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The driver exports the following attributes via the 'sysfs' files
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for input voltage:
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**in1_input**
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**in1_label**
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**in1_max**
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**in1_max_alarm**
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**in1_min**
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**in1_min_alarm**
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**in1_crit**
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**in1_crit_alarm**
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The driver provides the following attributes for output voltage:
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**in2_input**
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**in2_label**
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**in2_alarm**
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The driver provides the following attributes for output current:
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**curr1_input**
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**curr1_label**
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**curr1_max**
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**curr1_max_alarm**
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**curr1_crit**
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**curr1_crit_alarm**
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The driver provides the following attributes for temperature:
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**temp1_input**
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**temp1_max**
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**temp1_max_alarm**
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**temp1_crit**
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**temp1_crit_alarm**
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