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>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/r8a7790.dtsi b/arch/arm/boot/dts/r8a7790.dtsi
index 9df57122e9c0..2c55c4b8295f 100644
--- 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.