From 529b89ef7ff898397ff3a44b527816a82d0c699c Mon Sep 17 00:00:00 2001
From: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Date: Tue, 25 Sep 2012 02:02:13 +0200
Subject: [PATCH] ARM: dove: Add pcie clock support
As dove now has clock gating control ensure pcie ports grab their
clocks.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-dove/pcie.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index bb15b26041cb7..0ef4435b16570 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/pci.h>
+#include <linux/clk.h>
#include <video/vga.h>
#include <asm/mach/pci.h>
#include <asm/mach/arch.h>
@@ -188,6 +189,10 @@ static void __init add_pcie_port(int index, void __iomem *base)
if (orion_pcie_link_up(base)) {
struct pcie_port *pp = &pcie_port[num_pcie_ports++];
+ struct clk *clk = clk_get_sys("pcie", (index ? "1" : "0"));
+
+ if (!IS_ERR(clk))
+ clk_prepare_enable(clk);
printk(KERN_INFO "link up\n");
--
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