From: 黄涛 <huangtao@rock-chips.com>
Date: Tue, 2 Aug 2011 10:47:27 +0000 (+0800)
Subject: regulator: rk29-pwm: use usleep_range to sleep, make cpu freq change more faster
X-Git-Tag: firefly_0821_release~9775^2~3^2~24^2
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=2f3a3e08a6b00edc678172dd2dc1d36f64c10835;p=firefly-linux-kernel-4.4.55.git

regulator: rk29-pwm: use usleep_range to sleep, make cpu freq change more faster
---

diff --git a/drivers/regulator/rk29-pwm-regulator.c b/drivers/regulator/rk29-pwm-regulator.c
index 016ceada24a5..aa49b3f799cc 100644
--- a/drivers/regulator/rk29-pwm-regulator.c
+++ b/drivers/regulator/rk29-pwm-regulator.c
@@ -101,7 +101,7 @@ static int pwm_set_rate(struct pwm_platform_data *pdata,int nHz,u32 rate)
 	return -1;
 	}
 
-	msleep(10);
+	usleep_range(10*1000, 10*1000);
 	
 	
     return (0);