Add device tree bindings for the SPD hub present in DDR5 modules. Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- I am not sure about the "pec-enable" property since it is not really a chip property but a SMBus property. It is also not chip specific; there are other chips with the capability to enable or disable PEC support. There are no generic SMBus bindings, though, so I don't know a better place (or name - maybe it should be 'smbus,pec-enable', but there are no other similar bindings, or at least I didn't find any). .../bindings/hwmon/jedec,spd5118.yaml | 52 +++++++++++++++++++ 1 file changed, 52 insertions(+) create mode 100644 Documentation/devicetree/bindings/hwmon/jedec,spd5118.yaml diff --git a/Documentation/devicetree/bindings/hwmon/jedec,spd5118.yaml b/Documentation/devicetree/bindings/hwmon/jedec,spd5118.yaml new file mode 100644 index 000000000000..1717f75129da --- /dev/null +++ b/Documentation/devicetree/bindings/hwmon/jedec,spd5118.yaml @@ -0,0 +1,52 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/hwmon/jedec,spd5118.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: JEDEC JESD300-5B (SPD5118) compatible DDR5 SPD hub + +maintainers: + - Guenter Roeck <linux@xxxxxxxxxxxx> + +description: | + JEDEC JESD300-5B.01 SPD5118 Hub and Serial Presence Detect + https://www.jedec.org/standards-documents/docs/jesd300-5b01 + +select: + properties: + compatible: + const: jedec,spd5118 + + required: + - compatible + - reg + +properties: + compatible: + const: jedec,spd5118 + + reg: + maxItems: 1 + + pec-enable: + description: Set to enable PEC (Packet Error Checking). + type: boolean + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + i2c { + #address-cells = <1>; + #size-cells = <0>; + + temp-sensor@51 { + compatible = "jedec,spd5118"; + reg = <0x51>; + }; + }; -- 2.39.2
