From: Axel Lin <axel.lin@gmail.com>
Date: Thu, 7 Jun 2012 01:52:12 +0000 (+0800)
Subject: regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in map_voltage_... 
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0bdc81e4e944781a2bcc971f9e3cf24ac7030939;p=linux-beck.git

regulator: core: Properly handle the case min_uV < rdev->desc->min_uV in map_voltage_linear

Properly handle the case if the specified min_uV is less than the voltage given
by the lowest selector.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 7584a74eec8a..09a737c868b5 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -2050,6 +2050,9 @@ int regulator_map_voltage_linear(struct regulator_dev *rdev,
 		return -EINVAL;
 	}
 
+	if (min_uV < rdev->desc->min_uV)
+		min_uV = rdev->desc->min_uV;
+
 	ret = DIV_ROUND_UP(min_uV - rdev->desc->min_uV, rdev->desc->uV_step);
 	if (ret < 0)
 		return ret;