By setting enable_reg, enable_mask, enable_val and disable_val, we can
use the regulator_enable/disable/is_enabled_regmap helpers. With this
change, then regB field can be removed from struct max77650_regulator_desc.

Signed-off-by: Axel Lin <axel....@ingics.com>
---
Hi Bartosz,
I don't have this h/w, please help to review and test it.

I think the only difference is the is_enabled checking:
Before the patch, it returns en != MAX77650_REGULATOR_DISABLED;
After the patch, it returns en == MAX77650_REGULATOR_ENABLED
I'm not sure if this difference does matter or not.

Thanks,
Axel
 drivers/regulator/max77650-regulator.c | 87 +++++++-------------------
 1 file changed, 23 insertions(+), 64 deletions(-)

diff --git a/drivers/regulator/max77650-regulator.c 
b/drivers/regulator/max77650-regulator.c
index 5afb91400832..90c0f73f3fad 100644
--- a/drivers/regulator/max77650-regulator.c
+++ b/drivers/regulator/max77650-regulator.c
@@ -13,8 +13,6 @@
 #include <linux/regulator/driver.h>
 
 #define MAX77650_REGULATOR_EN_CTRL_MASK                GENMASK(3, 0)
-#define MAX77650_REGULATOR_EN_CTRL_BITS(_reg) \
-               ((_reg) & MAX77650_REGULATOR_EN_CTRL_MASK)
 #define MAX77650_REGULATOR_ENABLED             GENMASK(2, 1)
 #define MAX77650_REGULATOR_DISABLED            BIT(2)
 
@@ -41,7 +39,6 @@ enum {
 struct max77650_regulator_desc {
        struct regulator_desc desc;
        unsigned int regA;
-       unsigned int regB;
 };
 
 static const u32 max77651_sbb1_regulator_volt_table[] = {
@@ -86,50 +83,6 @@ static const int max77650_current_limit_table[] = {
        1000000, 866000, 707000, 500000,
 };
 
-static int max77650_regulator_is_enabled(struct regulator_dev *rdev)
-{
-       struct max77650_regulator_desc *rdesc;
-       struct regmap *map;
-       int val, rv, en;
-
-       rdesc = rdev_get_drvdata(rdev);
-       map = rdev_get_regmap(rdev);
-
-       rv = regmap_read(map, rdesc->regB, &val);
-       if (rv)
-               return rv;
-
-       en = MAX77650_REGULATOR_EN_CTRL_BITS(val);
-
-       return en != MAX77650_REGULATOR_DISABLED;
-}
-
-static int max77650_regulator_enable(struct regulator_dev *rdev)
-{
-       struct max77650_regulator_desc *rdesc;
-       struct regmap *map;
-
-       rdesc = rdev_get_drvdata(rdev);
-       map = rdev_get_regmap(rdev);
-
-       return regmap_update_bits(map, rdesc->regB,
-                                 MAX77650_REGULATOR_EN_CTRL_MASK,
-                                 MAX77650_REGULATOR_ENABLED);
-}
-
-static int max77650_regulator_disable(struct regulator_dev *rdev)
-{
-       struct max77650_regulator_desc *rdesc;
-       struct regmap *map;
-
-       rdesc = rdev_get_drvdata(rdev);
-       map = rdev_get_regmap(rdev);
-
-       return regmap_update_bits(map, rdesc->regB,
-                                 MAX77650_REGULATOR_EN_CTRL_MASK,
-                                 MAX77650_REGULATOR_DISABLED);
-}
-
 static int max77650_regulator_set_voltage_sel(struct regulator_dev *rdev,
                                              unsigned int sel)
 {
@@ -140,7 +93,7 @@ static int max77650_regulator_set_voltage_sel(struct 
regulator_dev *rdev,
         * If the regulator is disabled, we can program the desired
         * voltage right away.
         */
-       if (!max77650_regulator_is_enabled(rdev))
+       if (!regulator_is_enabled_regmap(rdev))
                return regulator_set_voltage_sel_regmap(rdev, sel);
 
        /*
@@ -189,7 +142,7 @@ static int max77651_regulator_sbb1_set_voltage_sel(struct 
regulator_dev *rdev,
         * If the regulator is disabled, we can program the desired
         * voltage right away.
         */
-       if (!max77650_regulator_is_enabled(rdev))
+       if (!regulator_is_enabled_regmap(rdev))
                return regulator_set_voltage_sel_regmap(rdev, sel);
 
        curr = regulator_get_voltage_sel_regmap(rdev);
@@ -264,9 +217,9 @@ static int max77650_regulator_set_current_limit(struct 
regulator_dev *rdev,
 }
 
 static const struct regulator_ops max77650_regulator_LDO_ops = {
-       .is_enabled             = max77650_regulator_is_enabled,
-       .enable                 = max77650_regulator_enable,
-       .disable                = max77650_regulator_disable,
+       .is_enabled             = regulator_is_enabled_regmap,
+       .enable                 = regulator_enable_regmap,
+       .disable                = regulator_disable_regmap,
        .list_voltage           = regulator_list_voltage_linear,
        .map_voltage            = regulator_map_voltage_linear,
        .get_voltage_sel        = regulator_get_voltage_sel_regmap,
@@ -275,9 +228,9 @@ static const struct regulator_ops 
max77650_regulator_LDO_ops = {
 };
 
 static const struct regulator_ops max77650_regulator_SBB_ops = {
-       .is_enabled             = max77650_regulator_is_enabled,
-       .enable                 = max77650_regulator_enable,
-       .disable                = max77650_regulator_disable,
+       .is_enabled             = regulator_is_enabled_regmap,
+       .enable                 = regulator_enable_regmap,
+       .disable                = regulator_disable_regmap,
        .list_voltage           = regulator_list_voltage_linear,
        .map_voltage            = regulator_map_voltage_linear,
        .get_voltage_sel        = regulator_get_voltage_sel_regmap,
@@ -289,9 +242,9 @@ static const struct regulator_ops 
max77650_regulator_SBB_ops = {
 
 /* Special case for max77651 SBB1 - non-linear voltage mapping. */
 static const struct regulator_ops max77651_SBB1_regulator_ops = {
-       .is_enabled             = max77650_regulator_is_enabled,
-       .enable                 = max77650_regulator_enable,
-       .disable                = max77650_regulator_disable,
+       .is_enabled             = regulator_is_enabled_regmap,
+       .enable                 = regulator_enable_regmap,
+       .disable                = regulator_disable_regmap,
        .list_voltage           = regulator_list_voltage_table,
        .get_voltage_sel        = regulator_get_voltage_sel_regmap,
        .set_voltage_sel        = max77651_regulator_sbb1_set_voltage_sel,
@@ -313,6 +266,10 @@ static struct max77650_regulator_desc max77650_LDO_desc = {
                .n_voltages             = 128,
                .vsel_mask              = MAX77650_REGULATOR_V_LDO_MASK,
                .vsel_reg               = MAX77650_REG_CNFG_LDO_A,
+               .enable_reg             = MAX77650_REG_CNFG_LDO_B,
+               .enable_mask            = MAX77650_REGULATOR_EN_CTRL_MASK,
+               .enable_val             = MAX77650_REGULATOR_ENABLED,
+               .disable_val            = MAX77650_REGULATOR_DISABLED,
                .active_discharge_off   = MAX77650_REGULATOR_AD_DISABLED,
                .active_discharge_on    = MAX77650_REGULATOR_AD_ENABLED,
                .active_discharge_mask  = MAX77650_REGULATOR_AD_MASK,
@@ -321,7 +278,6 @@ static struct max77650_regulator_desc max77650_LDO_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_LDO_A,
-       .regB           = MAX77650_REG_CNFG_LDO_B,
 };
 
 static struct max77650_regulator_desc max77650_SBB0_desc = {
@@ -337,6 +293,10 @@ static struct max77650_regulator_desc max77650_SBB0_desc = 
{
                .n_voltages             = 64,
                .vsel_mask              = MAX77650_REGULATOR_V_SBB_MASK,
                .vsel_reg               = MAX77650_REG_CNFG_SBB0_A,
+               .enable_reg             = MAX77650_REG_CNFG_LDO_B,
+               .enable_mask            = MAX77650_REGULATOR_EN_CTRL_MASK,
+               .enable_val             = MAX77650_REGULATOR_ENABLED,
+               .disable_val            = MAX77650_REGULATOR_DISABLED,
                .active_discharge_off   = MAX77650_REGULATOR_AD_DISABLED,
                .active_discharge_on    = MAX77650_REGULATOR_AD_ENABLED,
                .active_discharge_mask  = MAX77650_REGULATOR_AD_MASK,
@@ -345,7 +305,6 @@ static struct max77650_regulator_desc max77650_SBB0_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_SBB0_A,
-       .regB           = MAX77650_REG_CNFG_SBB0_B,
 };
 
 static struct max77650_regulator_desc max77650_SBB1_desc = {
@@ -361,6 +320,10 @@ static struct max77650_regulator_desc max77650_SBB1_desc = 
{
                .n_voltages             = 64,
                .vsel_mask              = MAX77650_REGULATOR_V_SBB_MASK,
                .vsel_reg               = MAX77650_REG_CNFG_SBB1_A,
+               .enable_reg             = MAX77650_REG_CNFG_LDO_B,
+               .enable_mask            = MAX77650_REGULATOR_EN_CTRL_MASK,
+               .enable_val             = MAX77650_REGULATOR_ENABLED,
+               .disable_val            = MAX77650_REGULATOR_DISABLED,
                .active_discharge_off   = MAX77650_REGULATOR_AD_DISABLED,
                .active_discharge_on    = MAX77650_REGULATOR_AD_ENABLED,
                .active_discharge_mask  = MAX77650_REGULATOR_AD_MASK,
@@ -369,7 +332,6 @@ static struct max77650_regulator_desc max77650_SBB1_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_SBB1_A,
-       .regB           = MAX77650_REG_CNFG_SBB1_B,
 };
 
 static struct max77650_regulator_desc max77651_SBB1_desc = {
@@ -392,7 +354,6 @@ static struct max77650_regulator_desc max77651_SBB1_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_SBB1_A,
-       .regB           = MAX77650_REG_CNFG_SBB1_B,
 };
 
 static struct max77650_regulator_desc max77650_SBB2_desc = {
@@ -416,7 +377,6 @@ static struct max77650_regulator_desc max77650_SBB2_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_SBB2_A,
-       .regB           = MAX77650_REG_CNFG_SBB2_B,
 };
 
 static struct max77650_regulator_desc max77651_SBB2_desc = {
@@ -440,7 +400,6 @@ static struct max77650_regulator_desc max77651_SBB2_desc = {
                .type                   = REGULATOR_VOLTAGE,
        },
        .regA           = MAX77650_REG_CNFG_SBB2_A,
-       .regB           = MAX77650_REG_CNFG_SBB2_B,
 };
 
 static int max77650_regulator_probe(struct platform_device *pdev)
-- 
2.17.1

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