[PATCH RFC 03/12] dt-bindings: usb: Add Qualcomm 1st-gen PMIC Type-C

[David Heidelberg via B4 Relay <devnull+david.ixit.cz@kernel.org>]

From: David Heidelberg <david@ixit.cz>

Add a binding for the first generation of the Qualcomm PMIC USB Type-C
port controller, found on the PM660 and PMI8998 PMICs.

Unlike the later standalone Type-C peripheral at 0x1500 (e.g. PM8150B),
the gen1 Type-C CC logic is part of the charger's USBIN peripheral
(base 0x1300) and signals all Type-C events (CC state change,
tCCDebounce done, VBUS change and error) through a single aggregate
"type-c-change" interrupt. The USB PD PHY at 0x1700 is register
compatible with PM8150B.

The different interrupt set and register layout make it a separate
binding rather than another variant of qcom,pmic-typec. As with PM8150B,
the Type-C block and PD PHY are described as a separate SPMI node from
the charger.

Allow typec nodes of the Qualcomm SPMI PMIC to use the new binding as
well.

Assisted-by: LLM
Signed-off-by: David Heidelberg <david@ixit.cz>
---
 .../devicetree/bindings/mfd/qcom,spmi-pmic.yaml    |   4 +-
 .../bindings/usb/qcom,pmic-typec-gen1.yaml         | 130 +++++++++++++++++++++
 2 files changed, 133 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
index 5e0ed30a9a466..d7a43aa423c8a 100644
--- a/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
+++ b/Documentation/devicetree/bindings/mfd/qcom,spmi-pmic.yaml
@@ -199,17 +199,19 @@ patternProperties:
     $ref: /schemas/thermal/qcom,spmi-temp-alarm.yaml#
 
   "^temperature-sensor@[0-9a-f]+$":
     type: object
     $ref: /schemas/thermal/qcom,pm8775-mbg-tm.yaml#
 
   "^typec@[0-9a-f]+$":
     type: object
-    $ref: /schemas/usb/qcom,pmic-typec.yaml#
+    oneOf:
+      - $ref: /schemas/usb/qcom,pmic-typec.yaml#
+      - $ref: /schemas/usb/qcom,pmic-typec-gen1.yaml#
 
   "^usb-detect@[0-9a-f]+$":
     type: object
     $ref: /schemas/extcon/qcom,pm8941-misc.yaml#
 
   "^usb-vbus-regulator@[0-9a-f]+$":
     type: object
     $ref: /schemas/regulator/qcom,usb-vbus-regulator.yaml#
diff --git a/Documentation/devicetree/bindings/usb/qcom,pmic-typec-gen1.yaml b/Documentation/devicetree/bindings/usb/qcom,pmic-typec-gen1.yaml
new file mode 100644
index 0000000000000..8e93719fac3d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/qcom,pmic-typec-gen1.yaml
@@ -0,0 +1,130 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/qcom,pmic-typec-gen1.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm PMIC USB Type-C block (gen1)
+
+maintainers:
+  - David Heidelberg <david@ixit.cz>
+
+description:
+  First generation of the Qualcomm PMIC Type-C port controller.
+
+properties:
+  compatible:
+    enum:
+      - qcom,pm660-typec
+      - qcom,pmi8998-typec
+
+  reg:
+    items:
+      - description: USBIN peripheral base (Type-C CC logic)
+      - description: USB PD PHY peripheral base
+
+  interrupts:
+    items:
+      - description: Type-C change - CC state, tCCDebounce done, VBUS change or error
+      - description: Power Domain Signal TX - HardReset or CableReset signal TX
+      - description: Power Domain Signal RX - HardReset or CableReset signal RX
+      - description: Power Domain TX complete
+      - description: Power Domain RX complete
+      - description: Power Domain TX fail
+      - description: Power Domain TX message discard
+      - description: Power Domain RX message discard
+      - description: Power Domain Fast Role Swap event
+
+  interrupt-names:
+    items:
+      - const: type-c-change
+      - const: sig-tx
+      - const: sig-rx
+      - const: msg-tx
+      - const: msg-rx
+      - const: msg-tx-failed
+      - const: msg-tx-discarded
+      - const: msg-rx-discarded
+      - const: fr-swap
+
+  vdd-pdphy-supply:
+    description: VDD regulator supply to the PDPHY.
+
+  connector:
+    type: object
+    $ref: /schemas/connector/usb-connector.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - interrupt-names
+  - vdd-pdphy-supply
+  - connector
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/usb/pd.h>
+
+    pmic {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        typec@1300 {
+            compatible = "qcom,pmi8998-typec";
+            reg = <0x1300>,
+                  <0x1700>;
+
+            interrupts = <0x2 0x13 0x7 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x0 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x1 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x2 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x3 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x4 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x5 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x6 IRQ_TYPE_EDGE_RISING>,
+                         <0x2 0x17 0x7 IRQ_TYPE_EDGE_RISING>;
+            interrupt-names = "type-c-change",
+                              "sig-tx",
+                              "sig-rx",
+                              "msg-tx",
+                              "msg-rx",
+                              "msg-tx-failed",
+                              "msg-tx-discarded",
+                              "msg-rx-discarded",
+                              "fr-swap";
+
+            vdd-pdphy-supply = <&vreg_l24a_3p075>;
+
+            connector {
+                compatible = "usb-c-connector";
+
+                power-role = "dual";
+                data-role = "dual";
+                try-power-role = "sink";
+
+                source-pdos = <PDO_FIXED(5000, 900, PDO_FIXED_DUAL_ROLE |
+                               PDO_FIXED_USB_COMM | PDO_FIXED_DATA_SWAP)>;
+                sink-pdos = <PDO_FIXED(5000, 3000, PDO_FIXED_DUAL_ROLE |
+                             PDO_FIXED_USB_COMM | PDO_FIXED_DATA_SWAP)>;
+                op-sink-microwatt = <15000000>;
+
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@0 {
+                        reg = <0>;
+                        endpoint {
+                            remote-endpoint = <&usb_dwc3_hs>;
+                        };
+                    };
+                };
+            };
+        };
+    };
+...

-- 
2.55.0