diff --git a/Documentation/devicetree/bindings/connector/usb-connector.yaml b/Documentation/devicetree/bindings/connector/usb-connector.yaml
index 11e40d225b9f..901986de3e2b 100644
--- a/Documentation/devicetree/bindings/connector/usb-connector.yaml
+++ b/Documentation/devicetree/bindings/connector/usb-connector.yaml
@@ -300,6 +300,40 @@ properties:
     $ref: /schemas/types.yaml#/definitions/uint8-array
     maxItems: 4
 
+  sink-load-step:
+    description: Indicates the preferred load step slew rate in mA/usec for
+      the port (in sink mode). This property is defined in "6.5.13.7" of
+      "USB Power Delivery Specification Revision 3.1 Version 1.8".
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [150, 500]
+    default: 150
+
+  sink-load-characteristics:
+    description: Indicates the port's (in sink mode) preferred load
+      characteristics. Users can leverage SINK_LOAD_CHAR() defined in
+      dt-bindings/usb/pd.h to populate this field. This property is defined in
+      "6.5.13.8" of "USB Power Delivery Specification Revision 3.1 Version 1.8".
+    $ref: /schemas/types.yaml#/definitions/uint16
+
+  sink-compliance:
+    description: Represents the types of sources the sink device has been tested
+      and certified with. This property is defined in "6.5.13.9" of
+      "USB Power Delivery Specification Revision 3.1 Version 1.8"
+      Bit 0 when set indicates it has been tested on LPS compliant source
+      Bit 1 when set indicates it has been tested on PS1 compliant source
+      Bit 2 when set indicates it has been tested on PS2 compliant source
+    $ref: /schemas/types.yaml#/definitions/uint8
+    maximum: 7
+
+  charging-adapter-pdp-milliwatt:
+    description: This corresponds to the Power Delivery Profile rating of the
+      charging adapter shipped or recommended for use with the connector port.
+      This property is a requirement to infer the USB PD property
+      "SPR Sink Operational PDP" given in "6.5.13.14" of
+      "USB Power Delivery Specification Revision 3.1 Version 1.8".
+    minimum: 0
+    maximum: 100000
+
 dependencies:
   sink-vdos-v1: [ sink-vdos ]
   sink-vdos: [ sink-vdos-v1 ]
diff --git a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
index 3de4dc40b791..46a3748c8be4 100644
--- a/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
+++ b/Documentation/devicetree/bindings/usb/maxim,max33359.yaml
@@ -75,6 +75,10 @@ examples:
                                        PDO_FIXED(9000, 2000, 0)>;
                 sink-bc12-completion-time-ms = <500>;
                 pd-revision = /bits/ 8 <0x03 0x01 0x01 0x08>;
+                sink-load-step = <150>;
+                sink-load-characteristics = /bits/ 16 <SINK_LOAD_CHAR(0, 1, 1, 2)>;
+                sink-compliance = /bits/ 8 <(COMPLIANCE_LPS | COMPLIANCE_PS1)>;
+                charging-adapter-pdp-milliwatt = <18000>;
             };
         };
     };
diff --git a/include/dt-bindings/usb/pd.h b/include/dt-bindings/usb/pd.h
index e6526b138174..6cff2339bda3 100644
--- a/include/dt-bindings/usb/pd.h
+++ b/include/dt-bindings/usb/pd.h
@@ -465,4 +465,22 @@
 	 | ((vbm) & 0x3) << 15 | (curr) << 14 | ((vbi) & 0x3f) << 7	\
 	 | ((gi) & 0x3f) << 1 | (ct))
 
+/*
+ * Sink Load Characteristics
+ * -------------------------
+ *  <15>    :: Can tolerate vbus voltage droop
+ *  <11:14> :: Duty cycle in 5% increments when bits 4:0 are non-zero
+ *  <10:5>  :: Overload period in 20ms when bits 4:0 are non-zero
+ *  <4:0>   :: Percent overload in 10% increments. Values higher than 25 are
+ *             clipped to 250%
+ */
+#define SINK_LOAD_CHAR(vdroop, duty_cycle, period, percent_ol)		\
+	(((vdroop) & 0x1) << 15 | ((duty_cycle) & 0xf) << 11 |		\
+	 ((period) & 0x3f) << 5 | ((percent_ol) & 0x1f))
+
+/* Compliance */
+#define COMPLIANCE_LPS		(1 << 0)
+#define COMPLIANCE_PS1		(1 << 1)
+#define COMPLIANCE_PS2		(1 << 2)
+
 #endif /* __DT_POWER_DELIVERY_H */