The driver is used only on Exynos based boards with DTS support.
Convert the driver to DTS-only version. This simplifies a little the
code:
1. No dead (unused) entries in platform_data structure.
2. More code removed (from all three patches: 34 insertions(+), 107
   deletions).
3. Regulator driver does not depend on allocated memory
   from MFD driver.
4. It makes also easier extending the regulator driver

Signed-off-by: Krzysztof Kozlowski <[email protected]>
---
 drivers/mfd/max77686.c               | 23 -----------------------
 include/linux/mfd/max77686-private.h |  1 -
 include/linux/mfd/max77686.h         | 22 ----------------------
 3 files changed, 46 deletions(-)

diff --git a/drivers/mfd/max77686.c b/drivers/mfd/max77686.c
index 929795eae9fc..3da237afacde 100644
--- a/drivers/mfd/max77686.c
+++ b/drivers/mfd/max77686.c
@@ -205,24 +205,10 @@ static const struct of_device_id max77686_pmic_dt_match[] 
= {
        { },
 };
 
-static struct max77686_platform_data *max77686_i2c_parse_dt_pdata(struct device
-                                                                 *dev)
-{
-       struct max77686_platform_data *pd;
-
-       pd = devm_kzalloc(dev, sizeof(*pd), GFP_KERNEL);
-       if (!pd)
-               return NULL;
-
-       dev->platform_data = pd;
-       return pd;
-}
-
 static int max77686_i2c_probe(struct i2c_client *i2c,
                              const struct i2c_device_id *id)
 {
        struct max77686_dev *max77686 = NULL;
-       struct max77686_platform_data *pdata = dev_get_platdata(&i2c->dev);
        const struct of_device_id *match;
        unsigned int data;
        int ret = 0;
@@ -233,14 +219,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
        const struct mfd_cell *cells;
        int n_devs;
 
-       if (IS_ENABLED(CONFIG_OF) && i2c->dev.of_node && !pdata)
-               pdata = max77686_i2c_parse_dt_pdata(&i2c->dev);
-
-       if (!pdata) {
-               dev_err(&i2c->dev, "No platform data found.\n");
-               return -EINVAL;
-       }
-
        max77686 = devm_kzalloc(&i2c->dev,
                                sizeof(struct max77686_dev), GFP_KERNEL);
        if (!max77686)
@@ -259,7 +237,6 @@ static int max77686_i2c_probe(struct i2c_client *i2c,
        max77686->dev = &i2c->dev;
        max77686->i2c = i2c;
 
-       max77686->wakeup = pdata->wakeup;
        max77686->irq = i2c->irq;
 
        if (max77686->type == TYPE_MAX77686) {
diff --git a/include/linux/mfd/max77686-private.h 
b/include/linux/mfd/max77686-private.h
index 960b92ad450d..f5043490d67c 100644
--- a/include/linux/mfd/max77686-private.h
+++ b/include/linux/mfd/max77686-private.h
@@ -447,7 +447,6 @@ struct max77686_dev {
        struct regmap_irq_chip_data *rtc_irq_data;
 
        int irq;
-       bool wakeup;
        struct mutex irqlock;
        int irq_masks_cur[MAX77686_IRQ_GROUP_NR];
        int irq_masks_cache[MAX77686_IRQ_GROUP_NR];
diff --git a/include/linux/mfd/max77686.h b/include/linux/mfd/max77686.h
index 553f7d09258a..ea8501dfc865 100644
--- a/include/linux/mfd/max77686.h
+++ b/include/linux/mfd/max77686.h
@@ -136,26 +136,4 @@ struct max77686_opmode_data {
        int mode;
 };
 
-struct max77686_platform_data {
-       int ono;
-       int wakeup;
-
-       /* ---- PMIC ---- */
-       struct max77686_regulator_data *regulators;
-       int num_regulators;
-
-       struct max77686_opmode_data *opmode_data;
-
-       /*
-        * GPIO-DVS feature is not enabled with the current version of
-        * MAX77686 driver. Buck2/3/4_voltages[0] is used as the default
-        * voltage at probe. DVS/SELB gpios are set as OUTPUT-LOW.
-        */
-       int buck234_gpio_dvs[3]; /* GPIO of [0]DVS1, [1]DVS2, [2]DVS3 */
-       int buck234_gpio_selb[3]; /* [0]SELB2, [1]SELB3, [2]SELB4 */
-       unsigned int buck2_voltage[8]; /* buckx_voltage in uV */
-       unsigned int buck3_voltage[8];
-       unsigned int buck4_voltage[8];
-};
-
 #endif /* __LINUX_MFD_MAX77686_H */
-- 
1.9.1

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