regulator: Ensure enough delay time for enabling regulator
authorAxel Lin <axel.lin@gmail.com>
Fri, 5 Nov 2010 13:51:32 +0000 (21:51 +0800)
committerLiam Girdwood <lrg@slimlogic.co.uk>
Tue, 30 Nov 2010 15:13:25 +0000 (15:13 +0000)
Integer division will truncate the result, this patch ensures we have
enough delay time for enabling regulator.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
drivers/regulator/core.c

index c3f93b401e905d4ade335cd96dbe028ff25a29a7..9da85bc21db49f7ed8bcf388d3afce83fd4974d4 100644 (file)
@@ -1312,10 +1312,12 @@ static int _regulator_enable(struct regulator_dev *rdev)
                        if (ret < 0)
                                return ret;
 
-                       if (delay >= 1000)
+                       if (delay >= 1000) {
                                mdelay(delay / 1000);
-                       else if (delay)
+                               udelay(delay % 1000);
+                       } else if (delay) {
                                udelay(delay);
+                       }
 
                } else if (ret < 0) {
                        printk(KERN_ERR "%s: is_enabled() failed for %s: %d\n",