Merge tag 'ath-next-20250114' of git://git.kernel.org/pub/scm/linux/k…

…ernel/git/ath/ath

ath.git patches for v6.14

This development cycle again featured multiple patchsets to ath12k to
support the new 802.11be MLO feature, this time including the device
grouping infrastructure, and the advertisement of MLO support to the
wireless core. However the MLO feature is still considered to be
incomplete.

In addition, there was the usual set of bug fixes and cleanups, mostly
in ath12k, but also in ath9k.

Documentation/devicetree/bindings/net/wireless/qcom,ath12k-wsi.yaml

@@ -0,0 +1,204 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/wireless/qcom,ath12k-wsi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm Technologies ath12k wireless devices (PCIe) with WSI interface
+
+maintainers:
+  - Jeff Johnson <jjohnson@kernel.org>
+  - Kalle Valo <kvalo@kernel.org>
+
+description: |
+  Qualcomm Technologies IEEE 802.11be PCIe devices with WSI interface.
+
+  The ath12k devices (QCN9274) feature WSI support. WSI stands for
+  WLAN Serial Interface. It is used for the exchange of specific
+  control information across radios based on the doorbell mechanism.
+  This WSI connection is essential to exchange control information
+  among these devices.
+
+  The WSI interface includes TX and RX ports, which are used to connect
+  multiple WSI-supported devices together, forming a WSI group.
+
+  Diagram to represent one WSI connection (one WSI group) among
+  three devices.
+
+           +-------+        +-------+        +-------+
+           | pcie1 |        | pcie2 |        | pcie3 |
+           |       |        |       |        |       |
+    +----->|  wsi  |------->|  wsi  |------->|  wsi  |-----+
+    |      | grp 0 |        | grp 0 |        | grp 0 |     |
+    |      +-------+        +-------+        +-------+     |
+    +------------------------------------------------------+
+
+  Diagram to represent two WSI connections (two separate WSI groups)
+  among four devices.
+
+       +-------+    +-------+          +-------+    +-------+
+       | pcie0 |    | pcie1 |          | pcie2 |    | pcie3 |
+       |       |    |       |          |       |    |       |
+   +-->|  wsi  |--->|  wsi  |--+   +-->|  wsi  |--->|  wsi  |--+
+   |   | grp 0 |    | grp 0 |  |   |   | grp 1 |    | grp 1 |  |
+   |   +-------+    +-------+  |   |   +-------+    +-------+  |
+   +---------------------------+   +---------------------------+
+
+properties:
+  compatible:
+    enum:
+      - pci17cb,1109  # QCN9274
+
+  reg:
+    maxItems: 1
+
+  qcom,ath12k-calibration-variant:
+    $ref: /schemas/types.yaml#/definitions/string
+    description:
+      String to uniquely identify variant of the calibration data for designs
+      with colliding bus and device ids
+
+  qcom,wsi-controller:
+    $ref: /schemas/types.yaml#/definitions/flag
+    description:
+      The WSI controller device in the WSI group aids (is capable) to
+      synchronize the Timing Synchronization Function (TSF) clock across
+      all devices in the WSI group.
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    properties:
+      port@0:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          This is the TX port of WSI interface. It is attached to the RX
+          port of the next device in the WSI connection.
+
+      port@1:
+        $ref: /schemas/graph.yaml#/properties/port
+        description:
+          This is the RX port of WSI interface. It is attached to the TX
+          port of the previous device in the WSI connection.
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    pcie {
+        #address-cells = <3>;
+        #size-cells = <2>;
+
+        pcie@0 {
+            device_type = "pci";
+            reg = <0x0 0x0 0x0 0x0 0x0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges;
+
+            wifi@0 {
+                compatible = "pci17cb,1109";
+                reg = <0x0 0x0 0x0 0x0 0x0>;
+
+                qcom,ath12k-calibration-variant = "RDP433_1";
+
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@0 {
+                        reg = <0>;
+
+                        wifi1_wsi_tx: endpoint {
+                            remote-endpoint = <&wifi2_wsi_rx>;
+                        };
+                    };
+
+                    port@1 {
+                        reg = <1>;
+
+                        wifi1_wsi_rx: endpoint {
+                            remote-endpoint = <&wifi3_wsi_tx>;
+                        };
+                    };
+                };
+            };
+        };
+
+        pcie@1 {
+            device_type = "pci";
+            reg = <0x0 0x0 0x1 0x0 0x0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges;
+
+            wifi@0 {
+                compatible = "pci17cb,1109";
+                reg = <0x0 0x0 0x0 0x0 0x0>;
+
+                qcom,ath12k-calibration-variant = "RDP433_2";
+                qcom,wsi-controller;
+
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@0 {
+                        reg = <0>;
+
+                        wifi2_wsi_tx: endpoint {
+                            remote-endpoint = <&wifi3_wsi_rx>;
+                        };
+                    };
+
+                    port@1 {
+                        reg = <1>;
+
+                        wifi2_wsi_rx: endpoint {
+                            remote-endpoint = <&wifi1_wsi_tx>;
+                        };
+                    };
+                };
+            };
+        };
+
+        pcie@2 {
+            device_type = "pci";
+            reg = <0x0 0x0 0x2 0x0 0x0>;
+            #address-cells = <3>;
+            #size-cells = <2>;
+            ranges;
+
+            wifi@0 {
+                compatible = "pci17cb,1109";
+                reg = <0x0 0x0 0x0 0x0 0x0>;
+
+                qcom,ath12k-calibration-variant = "RDP433_3";
+
+                ports {
+                    #address-cells = <1>;
+                    #size-cells = <0>;
+
+                    port@0 {
+                        reg = <0>;
+
+                        wifi3_wsi_tx: endpoint {
+                            remote-endpoint = <&wifi1_wsi_rx>;
+                        };
+                    };
+
+                    port@1 {
+                        reg = <1>;
+
+                        wifi3_wsi_rx: endpoint {
+                            remote-endpoint = <&wifi2_wsi_tx>;
+                        };
+                    };
+                };
+            };
+        };
+    };