linux-kernel - [PATCH 1/2] dt-bindings: net: lpc-eth: document optional properties

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Date:   Thu, 10 Oct 2019 22:45:29 +0200
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     "David S . Miller" <davem@...emloft.net>
Cc:     Vladimir Zapolskiy <vz@...ia.com>,
        Sylvain Lemieux <slemieux.tyco@...il.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Alexandre Belloni <alexandre.belloni@...tlin.com>
Subject: [PATCH 1/2] dt-bindings: net: lpc-eth: document optional properties

The Ethernet controller is also an mdio controller, to be able to parse
children (phys for example), #address-cells and #size-cells must be
present.

Signed-off-by: Alexandre Belloni <alexandre.belloni@...tlin.com>
---
 Documentation/devicetree/bindings/net/lpc-eth.txt | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/lpc-eth.txt b/Documentation/devicetree/bindings/net/lpc-eth.txt
index b92e927808b6..53884555db05 100644
--- a/Documentation/devicetree/bindings/net/lpc-eth.txt
+++ b/Documentation/devicetree/bindings/net/lpc-eth.txt
@@ -9,6 +9,8 @@ Optional properties:
 - phy-mode: See ethernet.txt file in the same directory. If the property is
   absent, "rmii" is assumed.
 - use-iram: Use LPC32xx internal SRAM (IRAM) for DMA buffering
+- #address-cells: should be present when child phy is decribed. Must be 1.
+- #size-cells: should be present when child phy is decribed. Must be 0.
 
 Example:
 
-- 
2.21.0