netdev - [PATCH can-next 1/2] CAN: rcar: add gen[12] fallback compatibility strings

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Date:	Mon, 22 Feb 2016 11:15:49 +0900
From:	Simon Horman <horms+renesas@...ge.net.au>
To:	Wolfgang Grandegger <wg@...ndegger.com>,
	Marc Kleine-Budde <mkl@...gutronix.de>
Cc:	Magnus Damm <magnus.damm@...il.com>, linux-can@...r.kernel.org,
	netdev@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	Simon Horman <horms+renesas@...ge.net.au>
Subject: [PATCH can-next 1/2] CAN: rcar: add gen[12] fallback compatibility strings

Add fallback compatibility string for R-Car Gen 1 and Gen2 families.
This is in keeping with the fallback scheme being adopted wherever
appropriate for drivers for Renesas SoCs.

Signed-off-by: Simon Horman <horms+renesas@...ge.net.au>
---
 Documentation/devicetree/bindings/net/can/rcar_can.txt | 4 +++-
 drivers/net/can/rcar_can.c                             | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/net/can/rcar_can.txt b/Documentation/devicetree/bindings/net/can/rcar_can.txt
index 002d8440bf66..036786e1f70d 100644
--- a/Documentation/devicetree/bindings/net/can/rcar_can.txt
+++ b/Documentation/devicetree/bindings/net/can/rcar_can.txt
@@ -6,6 +6,8 @@ Required properties:
 	      "renesas,can-r8a7779" if CAN controller is a part of R8A7779 SoC.
 	      "renesas,can-r8a7790" if CAN controller is a part of R8A7790 SoC.
 	      "renesas,can-r8a7791" if CAN controller is a part of R8A7791 SoC.
+	      "renesas,can-gen1" for a generic R-Car Gen1 compatible device.
+	      "renesas,can-gen2" for a generic R-Car Gen2 compatible device.
 - reg: physical base address and size of the R-Car CAN register map.
 - interrupts: interrupt specifier for the sole interrupt.
 - clocks: phandles and clock specifiers for 3 CAN clock inputs.
@@ -25,7 +27,7 @@ Example
 SoC common .dtsi file:
 
 	can0: can@...80000 {
-		compatible = "renesas,can-r8a7791";
+		compatible = "renesas,can-r8a7791", "renesas,can-gen2";
 		reg = <0 0xe6e80000 0 0x1000>;
 		interrupts = <0 186 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&mstp9_clks R8A7791_CLK_RCAN0>,
diff --git a/drivers/net/can/rcar_can.c b/drivers/net/can/rcar_can.c
index bc46be39549d..c70a1f795933 100644
--- a/drivers/net/can/rcar_can.c
+++ b/drivers/net/can/rcar_can.c
@@ -904,6 +904,8 @@ static const struct of_device_id rcar_can_of_table[] __maybe_unused = {
 	{ .compatible = "renesas,can-r8a7779" },
 	{ .compatible = "renesas,can-r8a7790" },
 	{ .compatible = "renesas,can-r8a7791" },
+	{ .compatible = "renesas,can-gen1" },
+	{ .compatible = "renesas,can-gen2" },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, rcar_can_of_table);
-- 
2.1.4