On 2026-02-06 07:49 -06:00, Rob Herring wrote:
> On Mon, Jan 26, 2026 at 12:37:10AM +0530, Kaustabh Chakraborty wrote:
>> Certain Samsung S2M series PMICs have a MUIC device which reports
>> various cable states by measuring the ID-GND resistance with an internal
>> ADC. Document the devicetree schema for this device.
>>
>> Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org>
>> ---
>> .../bindings/extcon/samsung,s2mu005-muic.yaml | 35 ++++++++++++++++++++++
>> 1 file changed, 35 insertions(+)
>>
>> diff --git a/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml b/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml
>> new file mode 100644
>> index 0000000000000..05828b7b5be13
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/extcon/samsung,s2mu005-muic.yaml
>> @@ -0,0 +1,35 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/extcon/samsung,s2mu005-muic.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: Extcon Device for Samsung S2M series PMICs
>> +
>> +maintainers:
>> + - Kaustabh Chakraborty <kauschluss@disroot.org>
>> +
>> +description: |
>> + The Samsung S2M series PMIC extcon device is a USB port accessory
>
> extcon is a Linuxism. Use usb-connector binding.
>
>> + detector. It reports multiple states depending on the ID-GND
>> + resistance measured by an internal ADC.
>> +
>> + This is a part of device tree bindings for S2M and S5M family of Power
>> + Management IC (PMIC).
>> +
>> + See also Documentation/devicetree/bindings/mfd/samsung,s2mps11.yaml for
>> + additional information and example.
>> +
>> +properties:
>> + compatible:
>> + enum:
>> + - samsung,s2mu005-muic
>> +
>> + port:
>> + $ref: /schemas/graph.yaml#/properties/port
>
> What does the port connect to?
I have it connected to the USB PHY in device tree.
>
>> +
>> +required:
>> + - compatible
>> + - port
>> +
>> +additionalProperties: false
>>
>> --
>> 2.52.0
>>