ARM: shmobile: r8a7790: Add default PCIe bus clock

This patch adds a default PCIe bus clock node.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 9df5712..2c55c4b 100644 (file)
--- a/arch/arm/boot/dts/r8a7790.dtsi
+++ b/arch/arm/boot/dts/r8a7790.dtsi
@@ -487,6 +487,15 @@
                        clock-output-names = "extal";
                };
 
+               /* External PCIe clock - can be overridden by the board */
+               pcie_bus_clk: pcie_bus_clk {
+                       compatible = "fixed-clock";
+                       #clock-cells = <0>;
+                       clock-frequency = <100000000>;
+                       clock-output-names = "pcie_bus";
+                       status = "disabled";
+               };
+
                /*
                 * The external audio clocks are configured as 0 Hz fixed frequency clocks by
                 * default. Boards that provide audio clocks should override them.