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 016ceada24a59d8ddc1ce82dbe09aa77babbb60c..aa49b3f799cce252727aa18e6600848723e0b40a 100644 (file)
--- 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;\r
        }\r
 \r
-       msleep(10);\r
+       usleep_range(10*1000, 10*1000);\r
        \r
        \r
     return (0);\r