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| author | Mario Kicherer <dev@kicherer.org> | 2023-01-18 13:30:18 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2023-02-03 16:30:10 +0100 |
| commit | a66c9147916fefc66dba06236ff5307180d95cd4 (patch) | |
| tree | 56c581e2959d8511338132f06bb418c1f8dc4eac /Documentation/hwmon | |
| parent | dt-bindings: hwmon: add nxp,mc34vr500 (diff) | |
| download | linux-a66c9147916fefc66dba06236ff5307180d95cd4.tar.xz linux-a66c9147916fefc66dba06236ff5307180d95cd4.zip | |
docs: hwmon: add docs for the NXP MC34VR500 PMIC
Add documentation for the NXP MC34VR500 PMIC.
Signed-off-by: Mario Kicherer <dev@kicherer.org>
Link: https://lore.kernel.org/r/20230118123019.3041303-3-dev@kicherer.org
[groeck: Added to index]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'Documentation/hwmon')
| -rw-r--r-- | Documentation/hwmon/index.rst | 1 | ||||
| -rw-r--r-- | Documentation/hwmon/mc34vr500.rst | 32 |
2 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst index 7b36b0897230..95f5459ed2c9 100644 --- a/Documentation/hwmon/index.rst +++ b/Documentation/hwmon/index.rst @@ -145,6 +145,7 @@ Hardware Monitoring Kernel Drivers max6697 max8688 mc13783-adc + mc34vr500 mcp3021 menf21bmc mlxreg-fan diff --git a/Documentation/hwmon/mc34vr500.rst b/Documentation/hwmon/mc34vr500.rst new file mode 100644 index 000000000000..f82d872477ac --- /dev/null +++ b/Documentation/hwmon/mc34vr500.rst @@ -0,0 +1,32 @@ +.. SPDX-License-Identifier: GPL-2.0-or-later + +Kernel driver mc34vr500 +======================= + +Supported Chips: + + * NXP MC34VR500 + + Prefix: 'mc34vr500' + + Datasheet: https://www.nxp.com/docs/en/data-sheet/MC34VR500.pdf + +Author: Mario Kicherer <dev@kicherer.org> + +Description +----------- + +This driver implements initial support for the NXP MC34VR500 PMIC. The MC34VR500 +monitors the temperature, input voltage and output currents and provides +corresponding alarms. For the temperature, the chip can send interrupts if +the temperature rises above one of the following values: 110°, 120°, 125° and +130° Celsius. For the input voltage, an interrupt is sent when the voltage +drops below 2.8V. + +Currently, this driver only implements the input voltage and temperature +alarms. The interrupts are mapped as follows: + +<= 2.8V -> in0_min_alarm +>110°c -> temp1_max_alarm +>120°c -> temp1_crit_alarm +>130°c -> temp1_emergency_alarm |