diff options
| author | Lars Randers <lranders@mail.dk> | 2026-06-29 10:30:59 +0100 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2026-07-27 20:30:43 -0700 |
| commit | 79359b2266f5f81229589ee058d550bc54b4ee04 (patch) | |
| tree | 8be7af1769c294c0538b783cd33c278f53ded26a /drivers/hwmon/Kconfig | |
| parent | 7234b39701e9c7915b9d390f5d1ba70349b316ba (diff) | |
| download | linux-next-79359b2266f5f81229589ee058d550bc54b4ee04.tar.gz linux-next-79359b2266f5f81229589ee058d550bc54b4ee04.zip | |
hwmon: Driver for the temp/voltage sensor on PolarFire SoC
Add a driver for the temperature and voltage sensors on PolarFire SoC.
The temperature reports how hot the die is, and the voltages are the
SoC's 1.05, 1.8 and 2.5 volt rails respectively.
The hardware supports alarms in theory, but there is an erratum that
prevents clearing them once triggered, so no support is added for them.
The hardware measures voltage with 16 bits, of which 1 is a sign bit and
the remainder holds the voltage as a fixed point integer value. It's
improbable that the hardware will work if the voltages are negative, so
the driver ignores the sign bits.
There's no dt support etc here because this is the child of a simple-mfd
syscon.
Signed-off-by: Lars Randers <lranders@mail.dk>
Co-developed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260629-wriggle-headscarf-c85a4070dddb@spud
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/Kconfig')
| -rw-r--r-- | drivers/hwmon/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/hwmon/Kconfig b/drivers/hwmon/Kconfig index 2bfbcc033d59..b2e445b5536e 100644 --- a/drivers/hwmon/Kconfig +++ b/drivers/hwmon/Kconfig @@ -942,6 +942,19 @@ config SENSORS_JC42 This driver can also be built as a module. If so, the module will be called jc42. +config SENSORS_POLARFIRE_SOC_TVS + tristate "PolarFire SoC (MPFS) temperature and voltage sensor" + depends on POLARFIRE_SOC_SYSCONS || COMPILE_TEST + depends on MFD_SYSCON + help + This driver adds support for the PolarFire SoC (MPFS) Temperature and + Voltage Sensor. + + To compile this driver as a module, choose M here. the + module will be called tvs-mpfs. + + If unsure, say N. + config SENSORS_POWERZ tristate "ChargerLAB POWER-Z USB-C tester" depends on USB |