From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Date: Fri, 17 Nov 2017 10:41:25 +0000 (+0100)
Subject: arm64: dts: renesas: r8a77995: Add CAN external clock support
X-Git-Tag: for-linus-20180210~8^2~36^2~26
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=5ba27becdf2c0a62a22d2225b1e205c2eee0ef37;p=linux-block.git

arm64: dts: renesas: r8a77995: Add CAN external clock support

Adds external CAN clock node for r8a77995. This clock can be used as
fCAN clock of CAN and CAN FD controller.

Based on a patch for r8a7796 by Chris Paterson.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---

diff --git a/arch/arm64/boot/dts/renesas/r8a77995.dtsi b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
index 98b70542b812..0f78592d993c 100644
--- a/arch/arm64/boot/dts/renesas/r8a77995.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77995.dtsi
@@ -51,6 +51,13 @@
 		clock-frequency = <0>;
 	};
 
+	/* External CAN clock - to be overridden by boards that provide it */
+	can_clk: can {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <0>;
+	};
+
 	scif_clk: scif {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;