mfd: max77693: Remove unnecessary wrapper functions

This patch removes wrapper functions used to access regmap, and
make driver using regmap_*() functions instead.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Acked-by: Mark Brown <broonie@linaro.org>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

5 files changed, 54 insertions, 104 deletions

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index 2c7c3e191591..ba84a6e77e03 100644
--- a/drivers/extcon/extcon-max77693.c
+++ b/drivers/extcon/extcon-max77693.c
@@ -255,10 +255,10 @@ static int max77693_muic_set_debounce_time(struct max77693_muic_info *info,
         case ADC_DEBOUNCE_TIME_10MS:
         case ADC_DEBOUNCE_TIME_25MS:
         case ADC_DEBOUNCE_TIME_38_62MS:
-                ret = max77693_update_reg(info->max77693->regmap_muic,
+                ret = regmap_update_bits(info->max77693->regmap_muic,
                                           MAX77693_MUIC_REG_CTRL3,
-                                          time << CONTROL3_ADCDBSET_SHIFT,
-                                          CONTROL3_ADCDBSET_MASK);
+                                          CONTROL3_ADCDBSET_MASK,
+                                          time << CONTROL3_ADCDBSET_SHIFT);
                 if (ret) {
                         dev_err(info->dev, "failed to set ADC debounce time\n");
                         return ret;
@@ -286,15 +286,15 @@ static int max77693_muic_set_path(struct max77693_muic_info *info,
                 u8 val, bool attached)
 {
         int ret = 0;
-        u8 ctrl1, ctrl2 = 0;
+        unsigned int ctrl1, ctrl2 = 0;
 
         if (attached)
                 ctrl1 = val;
         else
                 ctrl1 = CONTROL1_SW_OPEN;
 
-        ret = max77693_update_reg(info->max77693->regmap_muic,
-                        MAX77693_MUIC_REG_CTRL1, ctrl1, COMP_SW_MASK);
+        ret = regmap_update_bits(info->max77693->regmap_muic,
+                        MAX77693_MUIC_REG_CTRL1, COMP_SW_MASK, ctrl1);
         if (ret < 0) {
                 dev_err(info->dev, "failed to update MUIC register\n");
                 return ret;
@@ -305,9 +305,9 @@ static int max77693_muic_set_path(struct max77693_muic_info *info,
         else
                 ctrl2 |= CONTROL2_LOWPWR_MASK;  /* LowPwr=1, CPEn=0 */
 
-        ret = max77693_update_reg(info->max77693->regmap_muic,
-                        MAX77693_MUIC_REG_CTRL2, ctrl2,
-                        CONTROL2_LOWPWR_MASK | CONTROL2_CPEN_MASK);
+        ret = regmap_update_bits(info->max77693->regmap_muic,
+                        MAX77693_MUIC_REG_CTRL2,
+                        CONTROL2_LOWPWR_MASK | CONTROL2_CPEN_MASK, ctrl2);
         if (ret < 0) {
                 dev_err(info->dev, "failed to update MUIC register\n");
                 return ret;
@@ -969,8 +969,8 @@ static void max77693_muic_irq_work(struct work_struct *work)
                 if (info->irq == muic_irqs[i].virq)
                         irq_type = muic_irqs[i].irq;
 
-        ret = max77693_bulk_read(info->max77693->regmap_muic,
-                        MAX77693_MUIC_REG_STATUS1, 2, info->status);
+        ret = regmap_bulk_read(info->max77693->regmap_muic,
+                        MAX77693_MUIC_REG_STATUS1, info->status, 2);
         if (ret) {
                 dev_err(info->dev, "failed to read MUIC register\n");
                 mutex_unlock(&info->mutex);
@@ -1042,8 +1042,8 @@ static int max77693_muic_detect_accessory(struct max77693_muic_info *info)
         mutex_lock(&info->mutex);
 
         /* Read STATUSx register to detect accessory */
-        ret = max77693_bulk_read(info->max77693->regmap_muic,
-                        MAX77693_MUIC_REG_STATUS1, 2, info->status);
+        ret = regmap_bulk_read(info->max77693->regmap_muic,
+                        MAX77693_MUIC_REG_STATUS1, info->status, 2);
         if (ret) {
                 dev_err(info->dev, "failed to read MUIC register\n");
                 mutex_unlock(&info->mutex);
@@ -1095,7 +1095,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
         int delay_jiffies;
         int ret;
         int i;
-        u8 id;
+        unsigned int id;
 
         info = devm_kzalloc(&pdev->dev, sizeof(struct max77693_muic_info),
                                    GFP_KERNEL);
@@ -1204,7 +1204,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
                 enum max77693_irq_source irq_src
                                 = MAX77693_IRQ_GROUP_NR;
 
-                max77693_write_reg(info->max77693->regmap_muic,
+                regmap_write(info->max77693->regmap_muic,
                                 init_data[i].addr,
                                 init_data[i].data);
 
@@ -1262,7 +1262,7 @@ static int max77693_muic_probe(struct platform_device *pdev)
          max77693_muic_set_path(info, info->path_uart, true);
 
         /* Check revision number of MUIC device*/
-        ret = max77693_read_reg(info->max77693->regmap_muic,
+        ret = regmap_read(info->max77693->regmap_muic,
                         MAX77693_MUIC_REG_ID, &id);
         if (ret < 0) {
                 dev_err(&pdev->dev, "failed to read revision number\n");
diff --git a/drivers/mfd/max77693-irq.c b/drivers/mfd/max77693-irq.c
index 66b58fe77094..7d8f99f94f27 100644
--- a/drivers/mfd/max77693-irq.c
+++ b/drivers/mfd/max77693-irq.c
@@ -30,8 +30,9 @@
 #include <linux/irqdomain.h>
 #include <linux/mfd/max77693.h>
 #include <linux/mfd/max77693-private.h>
+#include <linux/regmap.h>
 
-static const u8 max77693_mask_reg[] = {
+static const unsigned int max77693_mask_reg[] = {
         [LED_INT] = MAX77693_LED_REG_FLASH_INT_MASK,
         [TOPSYS_INT] = MAX77693_PMIC_REG_TOPSYS_INT_MASK,
         [CHG_INT] = MAX77693_CHG_REG_CHG_INT_MASK,
@@ -118,7 +119,7 @@ static void max77693_irq_sync_unlock(struct irq_data *data)
                         continue;
                 max77693->irq_masks_cache[i] = max77693->irq_masks_cur[i];
 
-                max77693_write_reg(map, max77693_mask_reg[i],
+                regmap_write(map, max77693_mask_reg[i],
                                 max77693->irq_masks_cur[i]);
         }
 
@@ -178,11 +179,11 @@ static irqreturn_t max77693_irq_thread(int irq, void *data)
 {
         struct max77693_dev *max77693 = data;
         u8 irq_reg[MAX77693_IRQ_GROUP_NR] = {};
-        u8 irq_src;
+        unsigned int irq_src;
         int ret;
         int i, cur_irq;
 
-        ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_INTSRC,
+        ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_INTSRC,
                                 &irq_src);
         if (ret < 0) {
                 dev_err(max77693->dev, "Failed to read interrupt source: %d\n",
@@ -190,25 +191,34 @@ static irqreturn_t max77693_irq_thread(int irq, void *data)
                 return IRQ_NONE;
         }
 
-        if (irq_src & MAX77693_IRQSRC_CHG)
+        if (irq_src & MAX77693_IRQSRC_CHG) {
                 /* CHG_INT */
-                ret = max77693_read_reg(max77693->regmap, MAX77693_CHG_REG_CHG_INT,
-                                &irq_reg[CHG_INT]);
+                unsigned int data;
+                ret = regmap_read(max77693->regmap,
+                                MAX77693_CHG_REG_CHG_INT, &data);
+                irq_reg[CHG_INT] = data;
+        }
 
-        if (irq_src & MAX77693_IRQSRC_TOP)
+        if (irq_src & MAX77693_IRQSRC_TOP) {
                 /* TOPSYS_INT */
-                ret = max77693_read_reg(max77693->regmap,
-                        MAX77693_PMIC_REG_TOPSYS_INT, &irq_reg[TOPSYS_INT]);
+                unsigned int data;
+                ret = regmap_read(max77693->regmap,
+                        MAX77693_PMIC_REG_TOPSYS_INT, &data);
+                irq_reg[TOPSYS_INT] = data;
+        }
 
-        if (irq_src & MAX77693_IRQSRC_FLASH)
+        if (irq_src & MAX77693_IRQSRC_FLASH) {
                 /* LED_INT */
-                ret = max77693_read_reg(max77693->regmap,
-                        MAX77693_LED_REG_FLASH_INT, &irq_reg[LED_INT]);
+                unsigned int data;
+                ret = regmap_read(max77693->regmap,
+                        MAX77693_LED_REG_FLASH_INT, &data);
+                irq_reg[LED_INT] = data;
+        }
 
         if (irq_src & MAX77693_IRQSRC_MUIC)
                 /* MUIC INT1 ~ INT3 */
-                max77693_bulk_read(max77693->regmap_muic, MAX77693_MUIC_REG_INT1,
-                        MAX77693_NUM_IRQ_MUIC_REGS, &irq_reg[MUIC_INT1]);
+                regmap_bulk_read(max77693->regmap_muic, MAX77693_MUIC_REG_INT1,
+                        &irq_reg[MUIC_INT1], MAX77693_NUM_IRQ_MUIC_REGS);
 
         /* Apply masking */
         for (i = 0; i < MAX77693_IRQ_GROUP_NR; i++) {
@@ -263,7 +273,7 @@ int max77693_irq_init(struct max77693_dev *max77693)
         struct irq_domain *domain;
         int i;
         int ret = 0;
-        u8 intsrc_mask;
+        unsigned int intsrc_mask;
 
         mutex_init(&max77693->irqlock);
 
@@ -286,9 +296,9 @@ int max77693_irq_init(struct max77693_dev *max77693)
                 if (max77693_mask_reg[i] == MAX77693_REG_INVALID)
                         continue;
                 if (i >= MUIC_INT1 && i <= MUIC_INT3)
-                        max77693_write_reg(map, max77693_mask_reg[i], 0x00);
+                        regmap_write(map, max77693_mask_reg[i], 0x00);
                 else
-                        max77693_write_reg(map, max77693_mask_reg[i], 0xff);
+                        regmap_write(map, max77693_mask_reg[i], 0xff);
         }
 
         domain = irq_domain_add_linear(NULL, MAX77693_IRQ_NR,
@@ -301,7 +311,7 @@ int max77693_irq_init(struct max77693_dev *max77693)
         max77693->irq_domain = domain;
 
         /* Unmask max77693 interrupt */
-        ret = max77693_read_reg(max77693->regmap,
+        ret = regmap_read(max77693->regmap,
                         MAX77693_PMIC_REG_INTSRC_MASK, &intsrc_mask);
         if (ret < 0) {
                 dev_err(max77693->dev, "fail to read PMIC register\n");
@@ -311,7 +321,7 @@ int max77693_irq_init(struct max77693_dev *max77693)
         intsrc_mask &= ~(MAX77693_IRQSRC_CHG);
         intsrc_mask &= ~(MAX77693_IRQSRC_FLASH);
         intsrc_mask &= ~(MAX77693_IRQSRC_MUIC);
-        ret = max77693_write_reg(max77693->regmap,
+        ret = regmap_write(max77693->regmap,
                         MAX77693_PMIC_REG_INTSRC_MASK, intsrc_mask);
         if (ret < 0) {
                 dev_err(max77693->dev, "fail to write PMIC register\n");
diff --git a/drivers/mfd/max77693.c b/drivers/mfd/max77693.c
index 7e05428c756d..a0308336adaf 100644
--- a/drivers/mfd/max77693.c
+++ b/drivers/mfd/max77693.c
@@ -49,58 +49,6 @@ static const struct mfd_cell max77693_devs[] = {
         { .name = "max77693-haptic", },
 };
 
-int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest)
-{
-        unsigned int val;
-        int ret;
-
-        ret = regmap_read(map, reg, &val);
-        *dest = val;
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(max77693_read_reg);
-
-int max77693_bulk_read(struct regmap *map, u8 reg, int count, u8 *buf)
-{
-        int ret;
-
-        ret = regmap_bulk_read(map, reg, buf, count);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(max77693_bulk_read);
-
-int max77693_write_reg(struct regmap *map, u8 reg, u8 value)
-{
-        int ret;
-
-        ret = regmap_write(map, reg, value);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(max77693_write_reg);
-
-int max77693_bulk_write(struct regmap *map, u8 reg, int count, u8 *buf)
-{
-        int ret;
-
-        ret = regmap_bulk_write(map, reg, buf, count);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(max77693_bulk_write);
-
-int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask)
-{
-        int ret;
-
-        ret = regmap_update_bits(map, reg, mask, val);
-
-        return ret;
-}
-EXPORT_SYMBOL_GPL(max77693_update_reg);
-
 static const struct regmap_config max77693_regmap_config = {
         .reg_bits = 8,
         .val_bits = 8,
@@ -117,7 +65,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
                               const struct i2c_device_id *id)
 {
         struct max77693_dev *max77693;
-        u8 reg_data;
+        unsigned int reg_data;
         int ret = 0;
 
         max77693 = devm_kzalloc(&i2c->dev,
@@ -139,7 +87,7 @@ static int max77693_i2c_probe(struct i2c_client *i2c,
                 return ret;
         }
 
-        ret = max77693_read_reg(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
+        ret = regmap_read(max77693->regmap, MAX77693_PMIC_REG_PMIC_ID2,
                                 &reg_data);
         if (ret < 0) {
                 dev_err(max77693->dev, "device not found on this channel\n");
diff --git a/drivers/regulator/max77693.c b/drivers/regulator/max77693.c
index 653a58b49cdf..c67ff05fc1dd 100644
--- a/drivers/regulator/max77693.c
+++ b/drivers/regulator/max77693.c
@@ -31,6 +31,7 @@
 #include <linux/mfd/max77693.h>
 #include <linux/mfd/max77693-private.h>
 #include <linux/regulator/of_regulator.h>
+#include <linux/regmap.h>
 
 #define CHGIN_ILIM_STEP_20mA                    20000
 
@@ -39,9 +40,9 @@
 static int max77693_chg_is_enabled(struct regulator_dev *rdev)
 {
         int ret;
-        u8 val;
+        unsigned int val;
 
-        ret = max77693_read_reg(rdev->regmap, rdev->desc->enable_reg, &val);
+        ret = regmap_read(rdev->regmap, rdev->desc->enable_reg, &val);
         if (ret)
                 return ret;
 
@@ -57,12 +58,11 @@ static int max77693_chg_get_current_limit(struct regulator_dev *rdev)
 {
         unsigned int chg_min_uA = rdev->constraints->min_uA;
         unsigned int chg_max_uA = rdev->constraints->max_uA;
-        u8 reg, sel;
+        unsigned int reg, sel;
         unsigned int val;
         int ret;
 
-        ret = max77693_read_reg(rdev->regmap,
-                                MAX77693_CHG_REG_CHG_CNFG_09, &reg);
+        ret = regmap_read(rdev->regmap, MAX77693_CHG_REG_CHG_CNFG_09, &reg);
         if (ret < 0)
                 return ret;
 
@@ -96,7 +96,7 @@ static int max77693_chg_set_current_limit(struct regulator_dev *rdev,
         /* the first four codes for charger current are all 60mA */
         sel += 3;
 
-        return max77693_write_reg(rdev->regmap,
+        return regmap_write(rdev->regmap,
                                 MAX77693_CHG_REG_CHG_CNFG_09, sel);
 }
 /* end of CHARGER regulator ops */
diff --git a/include/linux/mfd/max77693-private.h b/include/linux/mfd/max77693-private.h
index 3e050b933dd0..80ec31d561c4 100644
--- a/include/linux/mfd/max77693-private.h
+++ b/include/linux/mfd/max77693-private.h
@@ -332,14 +332,6 @@ enum max77693_types {
         TYPE_MAX77693,
 };
 
-extern int max77693_read_reg(struct regmap *map, u8 reg, u8 *dest);
-extern int max77693_bulk_read(struct regmap *map, u8 reg, int count,
-                                u8 *buf);
-extern int max77693_write_reg(struct regmap *map, u8 reg, u8 value);
-extern int max77693_bulk_write(struct regmap *map, u8 reg, int count,
-                                u8 *buf);
-extern int max77693_update_reg(struct regmap *map, u8 reg, u8 val, u8 mask);
-
 extern int max77693_irq_init(struct max77693_dev *max77686);
 extern void max77693_irq_exit(struct max77693_dev *max77686);
 extern int max77693_irq_resume(struct max77693_dev *max77686);