The MPS MPQ8646 PMBus step-down converter uses the same
mps,vout-fb-divider-ratio-permille property with the same constraints
(maximum 2047, default 706) as the mps,mpq8785, so add its compatible
to the existing schema.
Signed-off-by: Vincent Jardin <vjardin@free.fr>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260730-mpq8646_v0-v7-2-e7c7ad768d5d@free.fr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add compatible strings for variants of MAX20830 which are MAX20830C
and MAX20840C. These devices have the same register functionality with
MAX20830 but with a longer IC_DEVICE_ID.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
Link: https://lore.kernel.org/r/20260730-dev-max20830c-v5-3-a7553f84ee74@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add adi,vout-rfb1-ohms and adi,vout-rfb2-ohms properties to support
external voltage divider configuration for VOUT sensing. When the
desired output voltage is higher than VREF, a resistor divider (RFB1
and RFB2) is required to reach the intended value.
The properties use a dependency constraint to ensure both resistors
are specified together, or neither. This prevents misconfiguration
where only one resistor value is provided.
This patch also adds missing entries in the examples.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Alexis Czezar Torreno <alexisczezar.torreno@analog.com>
Link: https://lore.kernel.org/r/20260730-dev-max20830c-v5-1-a7553f84ee74@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add device tree binding documentation for the Analog Devices MAX16545 and
MAX16550, and the Volterra VT7505 PMBus controllers.
Signed-off-by: Sanman Pradhan <psanman@juniper.net>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260725211945.288415-2-sanman.pradhan@hpe.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add a 'ti,current-range' string property to configure the device's Current
Limit (CL) behavior to "high" or "low" via the register, overriding the
physical CL pin setting.
This configuration is supported on LM25066, LM5064, LM5066, and LM5066i.
LM25056 is excluded because it does not support configuring the current
limit via the DEVICE_SETUP register (bit 2 of DEVICE_SETUP is reserved).
The values "low" and "high" map to the respective low/high threshold
voltages of the chips:
- LM25066: low = 25 mV, high = 46 mV
- LM5064, LM5066, LM5066i: low = 26 mV, high = 50 mV
Signed-off-by: Potin Lai <potin.lai.pt@gmail.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260615-lm25066-cl-config-v3-1-decb4f5b0b77@gmail.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add devicetree binding documentation for the Silergy SQ24860 eFuse.
The device is a PMBus hardware monitoring device which reports voltage,
current, power, and temperature telemetry. The board-specific IMON
resistor value is described with silergy,rimon-micro-ohms.
Signed-off-by: Ziming Zhu <ziming.zhu@silergycorp.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260612030304.5165-2-zmzhu0630@163.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add documentation for the device tree binding of the XDP730 eFuse.
Rename node to efuse to accurately reflect its hardware function.
Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260609072231.15486-2-Ashish.Yadav@infineon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add documentation for the device tree binding of the XDP720 eFuse.
Signed-off-by: Ashish Yadav <ashish.yadav@infineon.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20260410070154.3313-2-Ashish.Yadav@infineon.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
RAA228942 and RAA228943 are Renesas digital dual-output
16-phase (X+Y <= 16) PWM controllers with 2-rail non-TC
driver configuration. At the PMBus hwmon interface level,
they are compatible with existing 2-rail non-TC controllers
and use renesas,raa228244 as fallback compatible
Signed-off-by: Dawei Liu <dawei.liu.jy@renesas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20260325090208.857-2-dawei.liu.jy@renesas.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add device tree documentation for MAX17616/MAX17616A current-limiter
with overvoltage/surge, undervoltage, reverse polarity, loss of ground
protection with PMBus interface.
Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20250930-upstream-max17616-v1-1-1525a85f126c@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add device tree bindings for Monolithic Power Systems MPQ8785, MPM82504
and MPM3695 PMBus-compliant voltage regulators.
These bindings also documents the optional
"mps,vout-fb-divider-ratio-permille" property.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250511035701.2607947-2-paweldembicki@gmail.com
Signed-off-by: Pawel Dembicki <paweldembicki@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add optional gpio device tree bindings to the UCD90320.
The binding's description is already mentioning the number of GPIOs but
without actual gpio controller description.
Signed-off-by: Jonathan Stroud <jonathan.stroud@amd.com>
Signed-off-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/662a050f3f8160fe7c80d4f19e45eb4fac0f2f0a.1740384385.git.michal.simek@amd.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add devicetree bindings to support declaring optional voltage dividers to
the rail outputs of supported digital multiphase regulators. Some
applications require Vout to exceed the voltage range that the Vsense pin
can detect. This binding definition allows users to define the
characteristics of a voltage divider placed between Vout and the Vsense
pin for any rail powered by the device.
These bindings copy the vout-voltage-divider property defined in the
maxim,max20730 bindings schema since it is the best fit for the use case
of scaling hwmon PMBus telemetry. The generic voltage-divider property
used by many iio drivers was determined to be a poor fit because that
schema is tied directly to iio for the purpose of scaling io-channel
voltages and the isl68137 driver is not an iio driver.
New schema file named isil,isl68137.yaml to align with the corresponding
driver name and pre-existing bindings ported from trivial bindings.
However, all new device bindings use renesas as the vendor prefix
since Renesas acquired Intersil and now maintains all documentation
for the devices.
Signed-off-by: Grant Peltier <grantpeltier93@gmail.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Message-ID: <f7ac200e982961ff733de27a5c4505c04d68b6f3.1731439797.git.grantpeltier93@gmail.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Remove vicor,pli1209bc from trivial-devices as it requires additional
properties and does not fit into the trivial devices category.
Add new bindings for Vicor pli1209bc, a Digital Supervisor with
Isolation for use with BCM Bus Converter Modules.
VR rails are defined under regulator node as expected by pmbus driver.
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Message-ID: <20241021123044.3648960-1-naresh.solanki@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Remove mps297x from trivial-devices as it requires
additional properties and does not fit into the trivial
devices category.
Add new bindings for MPS mp2971, mp2973 & mp2975.
It is Dual-Loop, Digital Multi-Phase Controller with PMBUS
interface
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Message-ID: <20241022103750.572677-1-naresh.solanki@9elements.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add dt-bindings for adp1050 digital controller for isolated power supply
with pmbus interface voltage, current and temperature monitor.
Signed-off-by: Radu Sabau <radu.sabau@analog.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20240321142201.10330-1-radu.sabau@analog.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
tda38640 has a single regulator output along with CAT_FAULT# pin to
report internal events. Hence add properties for regulator & interrupt.
Signed-off-by: Naresh Solanki <naresh.solanki@9elements.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20240307113325.3800181-1-naresh.solanki@9elements.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reference common hwmon schema in the bindings which have and customize
the "shunt-resistor-micro-ohms" property. While this does not make the
binding smaller, it brings common definition of that property and also
allows generic "label" (parsed by Linux hwmon core code).
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240224-dt-bindings-hwmon-common-v2-5-b446eecf5480@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
All devices documented in the lm25066 binding are intended for use with
a regulator, be that for purely monitoring purposes (lm25056) or, for
the other devices, as the controller of that regulator. The binding does
not currently allow regulator child nodes, so add one.
Each of these devices interacts with only a single regulator and
documentation refers to it as "Vout", hence the choice of child node
name.
Acked-by: Zev Weiss <zev@bewilderbeest.net>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240223-tingling-mutt-dd55dd87ff5e@spud
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add the DT property 'infineon,en-pin-fixed-level' to
indicated that the chip EN pin is at fixed level
or left unconnected(has internal pull-down).
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Signed-off-by: Naresh Solanki <Naresh.Solanki@9elements.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230831190731.265099-1-Naresh.Solanki@9elements.com
[groeck: Dropped empty line at end]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Setting 'additionalProperties: false' is frequently omitted, but is
important in order to check that there aren't extra undocumented
properties in a binding.
Ideally, we'd just add this automatically and make this the default, but
there's some cases where it doesn't work. For example, if a common
schema is referenced, then properties in the common schema aren't part
of what's considered for 'additionalProperties'. Also, sometimes there
are bus specific properties such as 'spi-max-frequency' that go into
bus child nodes, but aren't defined in the child node's schema.
So let's stick with the json-schema defined default and add
'additionalProperties: false' where needed. This will be a continual
review comment and game of wack-a-mole.
Signed-off-by: Rob Herring <robh@kernel.org>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Acked-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Acked-by: Stephen Boyd <sboyd@kernel.org> # clock
Acked-by: Lee Jones <lee.jones@linaro.org>
