modify clock rate from int to unsigned int.

When clock is large than 2GHz, clock rate will overflow for using
int type. So change clock rate type to unsigned int. Then clock
rate can reach 4GHz.

Signed-off-by: Shaojie Sun <shaojie.sun@linaro.com>
diff --git a/clocks.c b/clocks.c
index 95acf57..203411a 100644
--- a/clocks.c
+++ b/clocks.c
@@ -36,9 +36,14 @@
 #include "tree.h"
 #include "utils.h"
 
+#ifndef uint
+#define uint unsigned int
+#endif
+
+
 struct clock_info {
 	int flags;
-	int rate;
+	uint rate;
 	int usecount;
 	bool expanded;
 	char *prefix;
@@ -73,9 +78,9 @@
 	return ci;
 }
 
-static inline const char *clock_rate(int *rate)
+static inline const char *clock_rate(uint *rate)
 {
-        int r;
+	uint r;
 
         /* GHZ */
         r = *rate >> 30;
@@ -107,7 +112,7 @@
 	struct clock_info *pclk;
 	const char *unit;
 	int ret = 0;
-	int rate = clk->rate;
+	uint rate = clk->rate;
 
 	if (!t->parent) {
 		printf("/\n");
@@ -125,7 +130,7 @@
 
 	unit = clock_rate(&rate);
 
-	printf("%s%s-- %s (flags:0x%x, usecount:%d, rate: %d %s)\n",
+	printf("%s%s-- %s (flags:0x%x, usecount:%d, rate: %u %s)\n",
 	       clk->prefix,  !t->next ? "`" : "", t->name, clk->flags,
 	       clk->usecount, rate, unit);
 
@@ -156,14 +161,14 @@
 
 	if(clock_fw == CCF) {
 		file_read_value(t->path, "clk_flags", "%x", &clk->flags);
-		file_read_value(t->path, "clk_rate", "%d", &clk->rate);
+		file_read_value(t->path, "clk_rate", "%u", &clk->rate);
 		file_read_value(t->path, "clk_prepare_count", "%d", &clk->preparecount);
 		file_read_value(t->path, "clk_enable_count", "%d", &clk->enablecount);
 		file_read_value(t->path, "clk_notifier_count", "%d", &clk->notifiercount);
 	}
 	else {
 		file_read_value(t->path, "flags", "%x", &clk->flags);
-		file_read_value(t->path, "rate", "%d", &clk->rate);
+		file_read_value(t->path, "rate", "%u", &clk->rate);
 		file_read_value(t->path, "usecount", "%d", &clk->usecount);
 	}
 
@@ -211,7 +216,7 @@
 static char *clock_line(struct tree *t)
 {
 	struct clock_info *clk;
-	int rate;
+	uint rate;
 	const char *clkunit;
 	char *clkrate, *clkname, *clkline = NULL;