From 844e6901df45d2021d1f81b25e61159b5af2687f Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Tue, 3 Jul 2012 15:19:33 +0800 Subject: [PATCH] regulator: tps65217: Fix voltage boundary checking in tps65217_pmic_map_voltage It is ok to request voltage with min_uV < tps->info[rid]->min_uV and max_uV > tps->info[rid]->max_uV. The equation we used in uv_to_vsel() does not allow min_uV < tps->info[rid]->min_uV, otherwise it returns negative selector. So we need to set min_uV = tps->info[rid]->min_uV if min_uV < tps->info[rid]->min_uV. Signed-off-by: Axel Lin Acked-by: AnilKumar Ch Signed-off-by: Mark Brown --- drivers/regulator/tps65217-regulator.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/regulator/tps65217-regulator.c b/drivers/regulator/tps65217-regulator.c index 0a3df5b7c904..f7d0495b003e 100644 --- a/drivers/regulator/tps65217-regulator.c +++ b/drivers/regulator/tps65217-regulator.c @@ -206,10 +206,10 @@ static int tps65217_pmic_map_voltage(struct regulator_dev *dev, if (rid < TPS65217_DCDC_1 || rid > TPS65217_LDO_4) return -EINVAL; - if (min_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV) - return -EINVAL; + if (min_uV < tps->info[rid]->min_uV) + min_uV = tps->info[rid]->min_uV; - if (max_uV < tps->info[rid]->min_uV || max_uV > tps->info[rid]->max_uV) + if (max_uV < tps->info[rid]->min_uV || min_uV > tps->info[rid]->max_uV) return -EINVAL; ret = tps->info[rid]->uv_to_vsel(min_uV, &sel);