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[39/54] arm64: dts: renesas: r8a77995: Add CAN external clock support

Message ID 5ba27becdf2c0a62a22d2225b1e205c2eee0ef37.1512640145.git.horms+renesas@verge.net.au (mailing list archive)
State New, archived
Headers show

Commit Message

Simon Horman Dec. 7, 2017, 9:53 a.m. UTC 
From: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>

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>
---
 arch/arm64/boot/dts/renesas/r8a77995.dtsi | 7 +++++++
 1 file changed, 7 insertions(+)
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Patch

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>;