Hwmon driver for MAX31827 temperature switch
Subsystems (3)
v5 cover Hwmon driver for MAX31827 temperature switch
Readded the of_match_table.
Added default cases where it was necessary.
Used mutex where it was necessary.
Added conversion to milli-degrees and milli-seconds.
Daniel Matyas (2):
dt-bindings: hwmon: add MAX31827
hwmon: max31827: add MAX31827 driver
.../bindings/hwmon/adi,max31827.yaml | 54 +++ Documentation/hwmon/index.rst | 1 + Documentation/hwmon/max31827.rst | 83 ++++ MAINTAINERS | 9 + drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 2 +- drivers/hwmon/max31827.c | 427 ++++++++++++++++++ 7 files changed, 586 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/hwmon/adi,max31827.yaml create mode 100644 Documentation/hwmon/max31827.rst create mode 100644 drivers/hwmon/max31827.c
Signature · 1 line
2.34.1
PATCH v5 1/2 dt-bindings: hwmon: add MAX31827
MAX31827 is a low-power temperature switch with I2C interface.
The device is a ±1°C accuracy from -40°C to +125°C (12 bits) local temperature switch and sensor with I2C/SM- Bus interface. The combination of small 6-bump wafer-lev- el package (WLP) and high accuracy makes this temper- ature sensor/switch ideal for a wide range of applications.
--- .../bindings/hwmon/adi,max31827.yaml | 54 +++++++++++++++++++ MAINTAINERS | 7 +++ 2 files changed, 61 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/adi,max31827.yaml
Documentation/devicetree/bindings/hwmon/adi,max31827.yaml new file +54 -0
@@ -0,0 +1,54 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/adi,max31827.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices MAX31827, MAX31828, MAX31829 Low-Power Temperature Switch + +maintainers: + - Daniel Matyas <[email protected]> + +description: | + Analog Devices MAX31827, MAX31828, MAX31829 Low-Power Temperature Switch with + I2C Interface + https://www.analog.com/media/en/technical-documentation/data-sheets/MAX31827-MAX31829.pdf + +properties: + compatible: + oneOf: + - const: adi,max31827 + - items: + - enum: + - adi,max31828 + - adi,max31829 + - const: adi,max31827 + + reg: + maxItems: 1 + + vref-supply: + description: + Must have values in the interval (1.6V; 3.6V) in order for the device to + function correctly. + +required: + - compatible + - reg + - vref-supply + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + temperature-sensor@42 { + compatible = "adi,max31827"; + reg = <0x42>; + vref-supply = <®_vdd>; + }; + }; +...
MAINTAINERS +7 -0
@@ -12535,6 +12535,13 @@ F: Documentation/userspace-api/media/drivers/max2175.rst F: drivers/media/i2c/max2175* F: include/uapi/linux/max2175.h +MAX31827 TEMPERATURE SWITCH DRIVER +M: Daniel Matyas <[email protected]> +L: [email protected] +S: Supported +W: http://ez.analog.com/community/linux-device-drivers +F: Documentation/devicetree/bindings/hwmon/adi,max31827.yaml + MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER L: [email protected] S: Orphan
Signature · 1 line
2.34.1
PATCH v5 2/2 hwmon: max31827: add MAX31827 driver
MAX31827 is a low-power temperature switch with I2C interface.
The device is a ±1°C accuracy from -40°C to +125°C (12 bits) local temperature switch and sensor with I2C/SM- Bus interface. The combination of small 6-bump wafer-lev- el package (WLP) and high accuracy makes this temper- ature sensor/switch ideal for a wide range of applications.
--- Documentation/hwmon/index.rst | 1 + Documentation/hwmon/max31827.rst | 83 ++++++ MAINTAINERS | 2 + drivers/hwmon/Kconfig | 11 + drivers/hwmon/Makefile | 2 +- drivers/hwmon/max31827.c | 427 +++++++++++++++++++++++++++++++ 6 files changed, 525 insertions(+), 1 deletion(-) create mode 100644 Documentation/hwmon/max31827.rst create mode 100644 drivers/hwmon/max31827.c
Documentation/hwmon/index.rst +1 -0
@@ -139,6 +139,7 @@ Hardware Monitoring Kernel Drivers max31760 max31785 max31790 + max31827 max34440 max6620 max6639
Documentation/hwmon/max31827.rst new file +83 -0
83 lines not on this page · raw message
MAINTAINERS +2 -0
@@ -12541,6 +12541,8 @@ L: [email protected] S: Supported W: http://ez.analog.com/community/linux-device-drivers F: Documentation/devicetree/bindings/hwmon/adi,max31827.yaml +F: Documentation/hwmon/max31827.rst +F: drivers/hwmon/max31827.c MAX6650 HARDWARE MONITOR AND FAN CONTROLLER DRIVER L: [email protected]
drivers/hwmon/Kconfig +11 -0
@@ -1097,6 +1097,17 @@ config SENSORS_MAX31760 This driver can also be built as a module. If so, the module will be called max31760. +config MAX31827 + tristate "MAX31827 low-power temperature switch and similar devices" + depends on I2C + select REGMAP_I2C + help + If you say yes here you get support for MAX31827, MAX31828 and + MAX31829 low-power temperature switches and sensors connected with I2C. + + This driver can also be built as a module. If so, the module + will be called max31827. + config SENSORS_MAX6620 tristate "Maxim MAX6620 fan controller" depends on I2C
drivers/hwmon/Makefile +1 -1
@@ -149,6 +149,7 @@ obj-$(CONFIG_SENSORS_MAX6642) += max6642.o obj-$(CONFIG_SENSORS_MAX6650) += max6650.o obj-$(CONFIG_SENSORS_MAX6697) += max6697.o obj-$(CONFIG_SENSORS_MAX31790) += max31790.o +obj-$(CONFIG_MAX31827) += max31827.o obj-$(CONFIG_SENSORS_MC13783_ADC)+= mc13783-adc.o obj-$(CONFIG_SENSORS_MC34VR500) += mc34vr500.o obj-$(CONFIG_SENSORS_MCP3021) += mcp3021.o
@@ -223,4 +224,3 @@ obj-$(CONFIG_SENSORS_PECI) += peci/ obj-$(CONFIG_PMBUS) += pmbus/ ccflags-$(CONFIG_HWMON_DEBUG_CHIP) := -DDEBUG -
drivers/hwmon/max31827.c new file +427 -0
427 lines not on this page · raw message
Signature · 1 line
2.34.1
Re: [PATCH v5 1/2] dt-bindings: hwmon: add MAX31827
In reply to Daniel MatyasQuoted 9 lines · Daniel Matyas
MAX31827 is a low-power temperature switch with I2C interface.
The device is a ±1°C accuracy from -40°C to +125°C (12 bits) local temperature switch and sensor with I2C/SM- Bus interface. The combination of small 6-bump wafer-lev- el package (WLP) and high accuracy makes this temper- ature sensor/switch ideal for a wide range of applications.
Signed-off-by Daniel Matyas <[email protected]>
Guenter asked for changelog... What do you expect us to do here?
Best regards,
Krzysztof
Re: [PATCH v5 1/2] dt-bindings: hwmon: add MAX31827
In reply to Daniel MatyasQuoted 9 lines · Daniel Matyas
MAX31827 is a low-power temperature switch with I2C interface.
The device is a ±1°C accuracy from -40°C to +125°C (12 bits) local temperature switch and sensor with I2C/SM- Bus interface. The combination of small 6-bump wafer-lev- el package (WLP) and high accuracy makes this temper- ature sensor/switch ideal for a wide range of applications.
Signed-off-by Daniel Matyas <[email protected]>
Hm, now I see the tag - did you just ignore it or did you change something?
Standard message follows:
This is a friendly reminder during the review process.
It looks like you received a tag and forgot to add it.
If you do not know the process, here is a short explanation:
Please add Acked-by/Reviewed-by/Tested-by tags when posting new versions. However, there's no need to repost patches *only* to add the tags. The upstream maintainer will do that for acks received on the version they apply.
https://elixir.bootlin.com/linux/v5.17/source/Documentation/process/submitting-patches.rst#L540
If a tag was not added on purpose, please state why and what changed.
Best regards,
Krzysztof