netdev - [PATCH v2 1/3] dt-bindings: net: add reset property for aspeed, ast2600-mdio binding

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Date:   Mon, 21 Mar 2022 17:56:46 +0800
From:   Dylan Hung <dylan_hung@...eedtech.com>
To:     <robh+dt@...nel.org>, <joel@....id.au>, <andrew@...id.au>,
        <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <kuba@...nel.org>, <pabeni@...hat.com>,
        <p.zabel@...gutronix.de>, <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-aspeed@...ts.ozlabs.org>, <linux-kernel@...r.kernel.org>,
        <netdev@...r.kernel.org>
CC:     <BMC-SW@...eedtech.com>, <stable@...r.kernel.org>
Subject: [PATCH v2 1/3] dt-bindings: net: add reset property for aspeed, ast2600-mdio binding

The AST2600 MDIO bus controller has a reset control bit and must be
deasserted before the manipulating the MDIO controller.

Signed-off-by: Dylan Hung <dylan_hung@...eedtech.com>
Cc: stable@...r.kernel.org
---
 .../devicetree/bindings/net/aspeed,ast2600-mdio.yaml          | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml b/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml
index 1c88820cbcdf..8ba108e25d94 100644
--- a/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml
+++ b/Documentation/devicetree/bindings/net/aspeed,ast2600-mdio.yaml
@@ -23,12 +23,15 @@ properties:
   reg:
     maxItems: 1
     description: The register range of the MDIO controller instance
+  resets:
+    maxItems: 1
 
 required:
   - compatible
   - reg
   - "#address-cells"
   - "#size-cells"
+  - resets
 
 unevaluatedProperties: false
 
@@ -39,6 +42,7 @@ examples:
             reg = <0x1e650000 0x8>;
             #address-cells = <1>;
             #size-cells = <0>;
+            resets = <&syscon 35>;
 
             ethphy0: ethernet-phy@0 {
                     compatible = "ethernet-phy-ieee802.3-c22";
-- 
2.25.1