netdev - [PATCH 1/2] dt-bindings: net: rockchip-dwmac: Require rockchip,grf and rockchip,php-grf

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Message-ID: <20250306210950.1686713-2-jonas@kwiboo.se>
Date: Thu,  6 Mar 2025 21:09:45 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Heiko Stuebner <heiko@...ech.de>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	David Wu <david.wu@...k-chips.com>
Cc: netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-rockchip@...ts.infradead.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Jonas Karlman <jonas@...boo.se>
Subject: [PATCH 1/2] dt-bindings: net: rockchip-dwmac: Require rockchip,grf and rockchip,php-grf

All Rockchip GMAC variants require writing to GRF to configure e.g.
interface mode and MAC rx/tx delay.

Change binding to require rockchip,grf and rockchip,php-grf to reflect
that GRF (and PHP-GRF for RK3576/RK3588) control part of GMAC.

Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
---
 .../devicetree/bindings/net/rockchip-dwmac.yaml | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
index f8a576611d6c..05a5605f1b51 100644
--- a/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
+++ b/Documentation/devicetree/bindings/net/rockchip-dwmac.yaml
@@ -32,9 +32,6 @@ select:
   required:
     - compatible
 
-allOf:
-  - $ref: snps,dwmac.yaml#
-
 properties:
   compatible:
     oneOf:
@@ -114,6 +111,20 @@ required:
   - compatible
   - clocks
   - clock-names
+  - rockchip,grf
+
+allOf:
+  - $ref: snps,dwmac.yaml#
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - rockchip,rk3576-gmac
+              - rockchip,rk3588-gmac
+    then:
+      required:
+        - rockchip,php-grf
 
 unevaluatedProperties: false
 
-- 
2.48.1