From: 张晴 <zhangqing@rock-chips.com>
Date: Mon, 30 Jul 2012 06:27:28 +0000 (+0800)
Subject: rk30:sdk:modify regulator_set_voltage process
X-Git-Tag: firefly_0821_release~8959
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=5419bd8a51579c45a5ab89861ff39ec671e4a0ac;p=firefly-linux-kernel-4.4.55.git

rk30:sdk:modify regulator_set_voltage process
---

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 19cfa94c3df5..fc8c1c3c11c2 100755
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1779,6 +1779,19 @@ int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV)
 
 	ret = _regulator_do_set_voltage(rdev, min_uV, max_uV);
 
+	if (ret < 0) {
+	int ret_volt = 0;
+	msleep(1);
+	ret_volt = _regulator_get_voltage(rdev);
+	if (ret_volt == regulator->max_uV) {
+		ret = 0;
+	} else {
+		regulator->min_uV = 0;
+		regulator->max_uV = 0;
+		ret = -1;
+	}
+  }
+
 out:
 	mutex_unlock(&rdev->mutex);
 	return ret;