[PATCH 02/16] arm64: dts: r8a7796: Add CAN external clock support

[Simon Horman]

From: Chris Paterson <chris.paters...@renesas.com>

Adds external CAN clock node for r8a7796. This clock can be used as
fCAN clock of CAN and CAN FD controller.

Based on a patch for r8a7795 by Ramesh Shanmugasundaram.

Signed-off-by: Chris Paterson <chris.paters...@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+rene...@glider.be>
Acked-by: Marc Kleine-Budde <m...@pengutronix.de>
Signed-off-by: Simon Horman <horms+rene...@verge.net.au>
---
 arch/arm64/boot/dts/renesas/r8a7796.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi 
b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
index 4bf8e14956fe..c0f9ced8df7e 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -69,6 +69,13 @@
                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>;
+       };
+
        /* External SCIF clock - to be overridden by boards that provide it */
        scif_clk: scif {
                compatible = "fixed-clock";
-- 
2.7.0.rc3.207.g0ac5344