From f38482fa700f18b72afbbaef8c4c4769c68c88ce Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Mon, 10 Dec 2012 19:46:52 +0800 Subject: [PATCH] regulator: lp3971: Convert to get_voltage_sel regulator_list_voltage_table() returns -EINVAL if selector >= n_voltages. Thus we don't need to check if reg is greater than BUCK_TARGET_VOL_MAX_IDX in lp3971_dcdc_get_voltage_sel. BUCK_TARGET_VOL_MIN_IDX and BUCK_TARGET_VOL_MAX_IDX are not used, remove them. Signed-off-by: Axel Lin Acked-by: Marek Szyprowski Signed-off-by: Mark Brown --- drivers/regulator/lp3971.c | 22 ++++++---------------- 1 file changed, 6 insertions(+), 16 deletions(-) diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c index 5f68ff11a298..9cb2c0f34515 100644 --- a/drivers/regulator/lp3971.c +++ b/drivers/regulator/lp3971.c @@ -73,8 +73,6 @@ static const unsigned int buck_voltage_map[] = { }; #define BUCK_TARGET_VOL_MASK 0x3f -#define BUCK_TARGET_VOL_MIN_IDX 0x01 -#define BUCK_TARGET_VOL_MAX_IDX 0x19 #define LP3971_BUCK_RAMP_REG(x) (buck_base_addr[x]+2) @@ -140,7 +138,7 @@ static int lp3971_ldo_disable(struct regulator_dev *dev) return lp3971_set_bits(lp3971, LP3971_LDO_ENABLE_REG, mask, 0); } -static int lp3971_ldo_get_voltage(struct regulator_dev *dev) +static int lp3971_ldo_get_voltage_sel(struct regulator_dev *dev) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); int ldo = rdev_get_id(dev) - LP3971_LDO1; @@ -149,7 +147,7 @@ static int lp3971_ldo_get_voltage(struct regulator_dev *dev) reg = lp3971_reg_read(lp3971, LP3971_LDO_VOL_CONTR_REG(ldo)); val = (reg >> LDO_VOL_CONTR_SHIFT(ldo)) & LDO_VOL_CONTR_MASK; - return dev->desc->volt_table[val]; + return val; } static int lp3971_ldo_set_voltage_sel(struct regulator_dev *dev, @@ -168,7 +166,7 @@ static struct regulator_ops lp3971_ldo_ops = { .is_enabled = lp3971_ldo_is_enabled, .enable = lp3971_ldo_enable, .disable = lp3971_ldo_disable, - .get_voltage = lp3971_ldo_get_voltage, + .get_voltage_sel = lp3971_ldo_get_voltage_sel, .set_voltage_sel = lp3971_ldo_set_voltage_sel, }; @@ -201,24 +199,16 @@ static int lp3971_dcdc_disable(struct regulator_dev *dev) return lp3971_set_bits(lp3971, LP3971_BUCK_VOL_ENABLE_REG, mask, 0); } -static int lp3971_dcdc_get_voltage(struct regulator_dev *dev) +static int lp3971_dcdc_get_voltage_sel(struct regulator_dev *dev) { struct lp3971 *lp3971 = rdev_get_drvdata(dev); int buck = rdev_get_id(dev) - LP3971_DCDC1; u16 reg; - int val; reg = lp3971_reg_read(lp3971, LP3971_BUCK_TARGET_VOL1_REG(buck)); reg &= BUCK_TARGET_VOL_MASK; - if (reg <= BUCK_TARGET_VOL_MAX_IDX) - val = buck_voltage_map[reg]; - else { - val = 0; - dev_warn(&dev->dev, "chip reported incorrect voltage value.\n"); - } - - return val; + return reg; } static int lp3971_dcdc_set_voltage_sel(struct regulator_dev *dev, @@ -249,7 +239,7 @@ static struct regulator_ops lp3971_dcdc_ops = { .is_enabled = lp3971_dcdc_is_enabled, .enable = lp3971_dcdc_enable, .disable = lp3971_dcdc_disable, - .get_voltage = lp3971_dcdc_get_voltage, + .get_voltage_sel = lp3971_dcdc_get_voltage_sel, .set_voltage_sel = lp3971_dcdc_set_voltage_sel, }; -- 2.34.1