[PATCH 1/4] regulator: tps6586x: Fix list minimal voltage setting for LDO0

Axel Lin
2012-03-24T01:37:39Z

According to the datasheet, LDO0 has minimal voltage 1.2V rather than 1.25V.

Table 3-39. VLDO0[2:0] Settings
VLDOx[2:0] VOUT (V) VLDOx[2:0] VOUT (V)
000 1.20 100 2.70
001 1.50 101 2.85
010 1.80 110 3.10
011 2.50 111 3.30

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
drivers/regulator/tps6586x-regulator.c | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 29b615c..cfc1f16 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -79,6 +79,11 @@ static int tps6586x_ldo_list_voltage(struct regulator_dev *rdev,
unsigned selector)
{
struct tps6586x_regulator *info = rdev_get_drvdata(rdev);
+ int rid = rdev_get_id(rdev);
+
+ /* LDO0 has minimal voltage 1.2V rather than 1.25V */
+ if ((rid == TPS6586X_ID_LDO_0) && (selector == 0))
+ return (info->voltages[0] - 50) * 1000;

return info->voltages[selector] * 1000;
}
--
1.7.5.4