netdev - [PATCH 1/2 net-next] ravb: Add fallback compatibility strings

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Message-Id: <1448955783-22806-2-git-send-email-horms+renesas@verge.net.au>
Date:	Tue,  1 Dec 2015 16:43:02 +0900
From:	Simon Horman <horms+renesas@...ge.net.au>
To:	netdev@...r.kernel.org, linux-sh@...r.kernel.org
Cc:	Magnus Damm <magnus.damm@...il.com>,
	Sergei Shtylyov <sergei.shtylyov@...entembedded.com>,
	devicetree@...r.kernel.org
Subject: [PATCH 1/2 net-next] ravb: Add fallback compatibility strings

Add fallback compatibility strings for R-Car Gen 2 & 3 SoC Families.
This is in keeping with the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.

Also correct typo.

Signed-off-by: Simon Horman <horms+renesas@...ge.net.au>
---
 Documentation/devicetree/bindings/net/renesas,ravb.txt | 11 +++++++++--
 drivers/net/ethernet/renesas/ravb_main.c               |  2 ++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/net/renesas,ravb.txt b/Documentation/devicetree/bindings/net/renesas,ravb.txt
index b486f3f5f6a3..115006325bff 100644
--- a/Documentation/devicetree/bindings/net/renesas,ravb.txt
+++ b/Documentation/devicetree/bindings/net/renesas,ravb.txt
@@ -1,12 +1,19 @@
 * Renesas Electronics Ethernet AVB
 
 This file provides information on what the device node for the Ethernet AVB
-interface contains.
+interface.
 
 Required properties:
 - compatible: "renesas,etheravb-r8a7790" if the device is a part of R8A7790 SoC.
 	      "renesas,etheravb-r8a7794" if the device is a part of R8A7794 SoC.
 	      "renesas,etheravb-r8a7795" if the device is a part of R8A7795 SoC.
+	      "renesas,etheravb-gen2" for generic R-Car Gen 2 compatible interface.
+	      "renesas,etheravb-gen3" for generic R-Car Gen 3 compatible interface.
+
+	      When compatible with the generic version, nodes must list the
+	      SoC-specific version corresponding to the platform first
+	      followed by the generic version.
+
 - reg: offset and length of (1) the register block and (2) the stream buffer.
 - interrupts: A list of interrupt-specifiers, one for each entry in
 	      interrupt-names.
@@ -37,7 +44,7 @@ Optional properties:
 Example:
 
 	ethernet@...00000 {
-		compatible = "renesas,etheravb-r8a7795";
+		compatible = "renesas,etheravb-r8a7795", "renesas,etheravb-gen3";
 		reg = <0 0xe6800000 0 0x800>, <0 0xe6a00000 0 0x10000>;
 		interrupt-parent = <&gic>;
 		interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 990dc55cdada..d3b4f574d346 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1656,7 +1656,9 @@ static int ravb_mdio_release(struct ravb_private *priv)
 static const struct of_device_id ravb_match_table[] = {
 	{ .compatible = "renesas,etheravb-r8a7790", .data = (void *)RCAR_GEN2 },
 	{ .compatible = "renesas,etheravb-r8a7794", .data = (void *)RCAR_GEN2 },
+	{ .compatible = "renesas,etheravb-gen2",    .data = (void *)RCAR_GEN2 },
 	{ .compatible = "renesas,etheravb-r8a7795", .data = (void *)RCAR_GEN3 },
+	{ .compatible = "renesas,etheravb-gen3",    .data = (void *)RCAR_GEN3 },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ravb_match_table);
-- 
2.1.4

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