[PATCH 14/35] arm64: dts: r8a7796: Add external PCIe bus clock

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From: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>

Add the external PCIe bus clock as a zero Hz fixed-frequency clock.
Boards that provide this clock should override it.

Based on r8a7795.dtsi.

Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
Signed-off-by: Simon Horman <horms+renesas@xxxxxxxxxxxx>
---
 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 101cd41d693a..8e2aab8b6b10 100644
--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi
@@ -157,6 +157,13 @@
 		clock-frequency = <0>;
 	};
 
+	/* External PCIe clock - can be overridden by the board */
+	pcie_bus_clk: pcie_bus {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <0>;
+	};
+
 	soc {
 		compatible = "simple-bus";
 		interrupt-parent = <&gic>;
-- 
2.1.4




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