From: 黄涛 <huangtao@rock-chips.com>
Date: Mon, 11 Jul 2011 12:15:57 +0000 (+0800)
Subject: rk29: cru.h: make LOOP more accurate
X-Git-Tag: firefly_0821_release~10136^2~18
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=d2b6305045e2ed32c0fa9571c7257b2ae91a9098;p=firefly-linux-kernel-4.4.55.git

rk29: cru.h: make LOOP more accurate
---

diff --git a/arch/arm/mach-rk29/include/mach/cru.h b/arch/arm/mach-rk29/include/mach/cru.h
index 45281a9fd65f..5e38f3ea6735 100644
--- a/arch/arm/mach-rk29/include/mach/cru.h
+++ b/arch/arm/mach-rk29/include/mach/cru.h
@@ -305,6 +305,6 @@ void cru_set_soft_reset(enum cru_soft_reset idx, bool on);
 
 #define LOOPS_PER_USEC	13
 #define LOOPS_PER_MSEC	12000
-#define LOOP(loops) do { int i = loops; barrier(); while (i--) barrier(); } while (0)
+#define LOOP(loops) do { unsigned int i = loops; barrier(); while (--i) barrier(); } while (0)
 
 #endif