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>
(cherry picked from commit 66c405e72bf332e59ab29461e33a4e94cb8bdd7a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/arch/arm/boot/dts/r8a7791.dtsi b/arch/arm/boot/dts/r8a7791.dtsi
index d1b8c47..7c676b9 100644 (file)
--- 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",