From cc17ef3f0463ba17c8767578da8c4e5fbdd4b447 Mon Sep 17 00:00:00 2001 From: Marcus Folkesson Date: Mon, 8 Aug 2011 20:29:33 +0200 Subject: regulator: tps65023: Set missing bit for update core-voltage Setting the GO bit in CTRL2 for updating the core voltage Signed-off-by: Marcus Folkesson Acked-by: Mark Brown Signed-off-by: Liam Girdwood --- drivers/regulator/tps65023-regulator.c | 19 +++++++++++++++---- 1 file changed, 15 insertions(+), 4 deletions(-) (limited to 'drivers/regulator') diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index b912daae9fa0..11c9e1f14079 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -284,6 +284,7 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev, struct tps_pmic *tps = rdev_get_drvdata(dev); int dcdc = rdev_get_id(dev); int vsel; + int ret; if (dcdc != TPS65023_DCDC_1) return -EINVAL; @@ -306,11 +307,21 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev, *selector = vsel; - /* write to the register in case we found a match */ if (vsel == tps->info[dcdc]->table_len) - return -EINVAL; - else - return tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); + goto failed; + + ret = tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel); + + /* Tell the chip that we have changed the value in DEFCORE + * and its time to update the core voltage + */ + tps_65023_set_bits(tps, TPS65023_REG_CON_CTRL2, + TPS65023_REG_CTRL2_GO); + + return ret; + +failed: + return -EINVAL; } static int tps65023_ldo_get_voltage(struct regulator_dev *dev) -- cgit v1.2.2