netdev - [PATCH net-next v2 04/18] dt-bindings: net: cdns,macb: allow dma-coherent

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Message-Id: <20250627-macb-v2-4-ff8207d0bb77@bootlin.com>
Date: Fri, 27 Jun 2025 11:08:50 +0200
From: Théo Lebrun <theo.lebrun@...tlin.com>
To: 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>, 
 Nicolas Ferre <nicolas.ferre@...rochip.com>, 
 Claudiu Beznea <claudiu.beznea@...on.dev>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>, Samuel Holland <samuel.holland@...ive.com>, 
 Richard Cochran <richardcochran@...il.com>, 
 Russell King <linux@...linux.org.uk>, 
 Thomas Bogendoerfer <tsbogend@...ha.franken.de>, 
 Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, 
 Gregory CLEMENT <gregory.clement@...tlin.com>, 
 Cyrille Pitchen <cyrille.pitchen@...el.com>, 
 Harini Katakam <harini.katakam@...inx.com>, 
 Rafal Ozieblo <rafalo@...ence.com>, 
 Haavard Skinnemoen <hskinnemoen@...el.com>, Jeff Garzik <jeff@...zik.org>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-riscv@...ts.infradead.org, 
 linux-mips@...r.kernel.org, Thomas Petazzoni <thomas.petazzoni@...tlin.com>, 
 Tawfik Bayouk <tawfik.bayouk@...ileye.com>, 
 Théo Lebrun <theo.lebrun@...tlin.com>
Subject: [PATCH net-next v2 04/18] dt-bindings: net: cdns,macb: allow
 dma-coherent

On EyeQ5, the GEM DMA controller is coherent with the CPU;
allow specifying the information.

Acked-by: Rob Herring (Arm) <robh@...nel.org>
Signed-off-by: Théo Lebrun <theo.lebrun@...tlin.com>
---
 Documentation/devicetree/bindings/net/cdns,macb.yaml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documentation/devicetree/bindings/net/cdns,macb.yaml
index 0112dc6aeed68a186f0ee0038f495b0234570427..58f4933ec2ca58432d7eaa017317249b074c9fc7 100644
--- a/Documentation/devicetree/bindings/net/cdns,macb.yaml
+++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml
@@ -113,6 +113,8 @@ properties:
   iommus:
     maxItems: 1

+  dma-coherent: true
+
   power-domains:
     maxItems: 1

-- 
2.50.0