[PATCH v4 1/2] dt-bindings: phy: Add sa8255p USB PHY

[Mattijs Korpershoek]

SA8255p platform abstracts resources such as clocks, interconnect and
GPIO pins configuration in Firmware. SCMI power protocol is used to
request resource configurations.

Two power domains can be requested: transfer and core.
transfer controls clocks and interconnects and core controls
the GDSC, resets and TLMM (GPIOs)

Add a new binding for the for the Qualcomm QMP Super Speed (SS) UNI PHY
found in SA8255P.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski at oss.qualcomm.com>
Signed-off-by: Mattijs Korpershoek <mkorpershoek at kernel.org>
---
 .../phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml         | 52 ++++++++++++++++++++++
 1 file changed, 52 insertions(+)

diff --git a/Documentation/devicetree/bindings/phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml b/Documentation/devicetree/bindings/phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml
new file mode 100644
index 000000000000..c09829c0f2d1
--- /dev/null
+++ b/Documentation/devicetree/bindings/phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml
@@ -0,0 +1,52 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/phy/qcom,sa8255p-qmp-usb3-uni-phy.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm SA8255p QMP PHY controller
+
+maintainers:
+  - Mattijs Korpershoek <mkorpershoek at kernel.org>
+
+properties:
+  compatible:
+    const: qcom,sa8255p-qmp-usb3-uni-phy
+
+  reg:
+    maxItems: 1
+
+  "#phy-cells":
+    const: 0
+
+  power-domains:
+    maxItems: 2
+
+  power-domain-names:
+    items:
+      - const: transfer
+      - const: core
+
+required:
+  - compatible
+  - reg
+  - "#phy-cells"
+  - power-domains
+  - power-domain-names
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        phy at 88e8000 {
+            compatible = "qcom,sa8255p-qmp-usb3-uni-phy";
+            reg = <0x0 0x088e8000 0x0 0x2000>;
+            #phy-cells = <0>;
+            power-domains = <&scmi12_pd 2>, <&scmi12_pd 3>;
+            power-domain-names = "transfer", "core";
+        };
+    };

-- 
2.55.0