arm64: dts: r8a7795: Add CAN external clock support

Adds external CAN clock node for r8a7795. This clock can be used as
fCAN clock of CAN and CAN FD controller.

Signed-off-by: Ramesh Shanmugasundaram <ramesh.shanmugasundaram@bp.renesas.com>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/r8a7795.dtsi b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
index a7315ebe3883..4049182e6608 100644
--- a/arch/arm64/boot/dts/renesas/r8a7795.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7795.dtsi
@@ -115,6 +115,14 @@
                 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>;
+                status = "disabled";
+        };
+
         /* External SCIF clock - to be overridden by boards that provide it */
         scif_clk: scif {
                 compatible = "fixed-clock";