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From:   Felix Fietkau <nbd@nbd.name>
To:     netdev@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzk+dt@kernel.org>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Paolo Abeni <pabeni@redhat.com>,
        Lorenzo Bianconi <lorenzo@kernel.org>
Cc:     devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        linux-mediatek@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 05/14] dt-bindings: arm: mediatek: document the pcie mirror node on MT7622
Date:   Tue,  5 Apr 2022 21:57:46 +0200
Message-Id: <20220405195755.10817-6-nbd@nbd.name>
In-Reply-To: <20220405195755.10817-1-nbd@nbd.name>
References: <20220405195755.10817-1-nbd@nbd.name>
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From: Lorenzo Bianconi <lorenzo@kernel.org>

This patch adds the pcie mirror document bindings for MT7622 SoC.
The feature is used for intercepting PCIe MMIO access for the WED core
Add related info in mediatek-net bindings.

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 .../mediatek/mediatek,mt7622-pcie-mirror.yaml | 42 +++++++++++++++++++
 .../devicetree/bindings/net/mediatek-net.txt  |  2 +
 2 files changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-pcie-mirror.yaml

diff --git a/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-pcie-mirror.yaml b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-pcie-mirror.yaml
new file mode 100644
index 000000000000..9fbeb626ab23
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/mediatek/mediatek,mt7622-pcie-mirror.yaml
@@ -0,0 +1,42 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/arm/mediatek/mediatek,mt7622-pcie-mirror.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: MediaTek PCIE Mirror Controller for MT7622
+
+maintainers:
+  - Lorenzo Bianconi <lorenzo@kernel.org>
+  - Felix Fietkau <nbd@nbd.name>
+
+description:
+  The mediatek PCIE mirror provides a configuration interface for PCIE
+  controller on MT7622 soc.
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - mediatek,mt7622-pcie-mirror
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    soc {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      pcie_mirror: pcie-mirror@10000400 {
+        compatible = "mediatek,mt7622-pcie-mirror", "syscon";
+        reg = <0 0x10000400 0 0x10>;
+      };
+    };
diff --git a/Documentation/devicetree/bindings/net/mediatek-net.txt b/Documentation/devicetree/bindings/net/mediatek-net.txt
index 1c8dc44bbb52..f18d70189375 100644
--- a/Documentation/devicetree/bindings/net/mediatek-net.txt
+++ b/Documentation/devicetree/bindings/net/mediatek-net.txt
@@ -48,6 +48,8 @@ Optional properties:
 	various clocks and reset to the system.
 - mediatek,wed: a list of phandles to wireless ethernet dispatch nodes for
 	MT7622 SoC.
+- mediatek,pcie-mirror: phandle to the mediatek pcie-mirror controller for
+	MT7622 SoC.
 
 * Ethernet MAC node
 
-- 
2.35.1