linux-kernel - [PATCH AUTOSEL 4.4 08/11] ARM: dts: at91: add new compatibility string for macb on sama5d3

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Message-Id: <20181005161736.20765-8-sashal@kernel.org>
Date:   Fri,  5 Oct 2018 12:17:33 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     stable@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:     Nicolas Ferre <nicolas.ferre@...rochip.com>,
        "David S . Miller" <davem@...emloft.net>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH AUTOSEL 4.4 08/11] ARM: dts: at91: add new compatibility string for macb on sama5d3

From: Nicolas Ferre <nicolas.ferre@...rochip.com>

[ Upstream commit 321cc359d899a8e988f3725d87c18a628e1cc624 ]

We need this new compatibility string as we experienced different behavior
for this 10/100Mbits/s macb interface on this particular SoC.
Backward compatibility is preserved as we keep the alternative strings.

Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
Signed-off-by: David S. Miller <davem@...emloft.net>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
---
 Documentation/devicetree/bindings/net/macb.txt | 1 +
 arch/arm/boot/dts/sama5d3_emac.dtsi            | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
index b5d79761ac97..410c044166e2 100644
--- a/Documentation/devicetree/bindings/net/macb.txt
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -8,6 +8,7 @@ Required properties:
   Use "cdns,pc302-gem" for Picochip picoXcell pc302 and later devices based on
   the Cadence GEM, or the generic form: "cdns,gem".
   Use "atmel,sama5d2-gem" for the GEM IP (10/100) available on Atmel sama5d2 SoCs.
+  Use "atmel,sama5d3-macb" for the 10/100Mbit IP available on Atmel sama5d3 SoCs.
   Use "atmel,sama5d3-gem" for the Gigabit IP available on Atmel sama5d3 SoCs.
   Use "atmel,sama5d4-gem" for the GEM IP (10/100) available on Atmel sama5d4 SoCs.
   Use "cdns,zynqmp-gem" for Zynq Ultrascale+ MPSoC.
diff --git a/arch/arm/boot/dts/sama5d3_emac.dtsi b/arch/arm/boot/dts/sama5d3_emac.dtsi
index 7cb235ef0fb6..6e9e1c2f9def 100644
--- a/arch/arm/boot/dts/sama5d3_emac.dtsi
+++ b/arch/arm/boot/dts/sama5d3_emac.dtsi
@@ -41,7 +41,7 @@
 			};
 
 			macb1: ethernet@...2c000 {
-				compatible = "cdns,at91sam9260-macb", "cdns,macb";
+				compatible = "atmel,sama5d3-macb", "cdns,at91sam9260-macb", "cdns,macb";
 				reg = <0xf802c000 0x100>;
 				interrupts = <35 IRQ_TYPE_LEVEL_HIGH 3>;
 				pinctrl-names = "default";
-- 
2.17.1