[PATCH v3 1/2] mfd: max77693: remove unnecessary wrapper functions

From: Robert Baldyga
Date: Tue Apr 29 2014 - 05:12:51 EST

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

Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
Reviewed-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
Acked-by: Lee Jones <lee.jones@xxxxxxxxxx>

[For extcon part]
Acked-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx>
---
drivers/extcon/extcon-max77693.c | 32 ++++++++++-----------
drivers/mfd/max77693-irq.c | 50 +++++++++++++++++++-------------
drivers/mfd/max77693.c | 56 ++----------------------------------
drivers/regulator/max77693.c | 12 ++++----
include/linux/mfd/max77693-private.h | 8 ------
5 files changed, 54 insertions(+), 104 deletions(-)

diff --git a/drivers/extcon/extcon-max77693.c b/drivers/extcon/extcon-max77693.c
index da268fb..0b09bf3 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);
@@ -1205,7 +1205,7 @@ 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);

@@ -1263,7 +1263,7 @@ 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 66b58fe..7d8f99f 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 c5535f0..6336251 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 653a58b..c67ff05 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 3e050b9..80ec31d 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);
--
1.9.1

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