ARM: shmobile: r8a7791: 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>
[horms+renesas@verge.net.au: resolved conflict]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index a15bf7af63e4..7f7eda7f2e23 100644
--- a/arch/arm/boot/dts/r8a7791.dtsi
+++ b/arch/arm/boot/dts/r8a7791.dtsi
@@ -555,6 +555,15 @@
                         clock-output-names = "audio_clk_c";
                 };
 
+                /* 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";
+                };
+
                 /* Special CPG clocks */
                 cpg_clocks: cpg_clocks@e6150000 {
                         compatible = "renesas,r8a7791-cpg-clocks",