[ARM] 3361/1: S3C24XX - add USB bus clock source

Patch from Ben Dooks

Add USB bus clock definition for 48MHz fed to OHCI and gadget cores

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 13 insertions, 1 deletions

diff --git a/arch/arm/mach-s3c2410/clock.c b/arch/arm/mach-s3c2410/clock.c
index 95c6d46c3dd6..fec02c92f95f 100644
--- a/arch/arm/mach-s3c2410/clock.c
+++ b/arch/arm/mach-s3c2410/clock.c
@@ -53,7 +53,8 @@
 /* clock information */
 
 static LIST_HEAD(clocks);
-static DEFINE_MUTEX(clocks_mutex);
+
+DEFINE_MUTEX(clocks_mutex);
 
 /* old functions */
 
@@ -296,6 +297,13 @@ static struct clk clk_p = {
         .ctrlbit        = 0,
 };
 
+struct clk clk_usb_bus = {
+        .name           = "usb-bus",
+        .id             = -1,
+        .rate           = 0,
+        .parent         = &clk_upll,
+};
+
 /* clocks that could be registered by external code */
 
 static int s3c24xx_dclk_enable(struct clk *clk, int enable)
@@ -606,6 +614,10 @@ int __init s3c24xx_setup_clocks(unsigned long xtal,
         if (s3c24xx_register_clock(&clk_p) < 0)
                 printk(KERN_ERR "failed to register cpu pclk\n");
 
+
+        if (s3c24xx_register_clock(&clk_usb_bus) < 0)
+                printk(KERN_ERR "failed to register usb bus clock\n");
+
         /* register clocks from clock array */
 
         for (ptr = 0; ptr < ARRAY_SIZE(init_clocks); ptr++, clkp++) {