ENGR00294354 gpu:Using vitural memory cause AXI bus error

[karo-tx-linux.git] / drivers / regulator / max8660.c

diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 8d94d3d7f97f22336fb973d5659ed50b4a3e6a97..2fc4111887949e01e04b023d6065962853779d42 100644 (file)
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -81,16 +81,17 @@ enum {
 struct max8660 {
        struct i2c_client *client;
        u8 shadow_regs[MAX8660_N_REGS];         /* as chip is write only */
-       struct regulator_dev *rdev[];
 };
 
 static int max8660_write(struct max8660 *max8660, u8 reg, u8 mask, u8 val)
 {
-       static const u8 max8660_addresses[MAX8660_N_REGS] =
-         { 0x10, 0x12, 0x20, 0x23, 0x24, 0x29, 0x2a, 0x32, 0x33, 0x39, 0x80 };
+       static const u8 max8660_addresses[MAX8660_N_REGS] = {
+        0x10, 0x12, 0x20, 0x23, 0x24, 0x29, 0x2a, 0x32, 0x33, 0x39, 0x80
+       };
 
        int ret;
        u8 reg_val = (max8660->shadow_regs[reg] & mask) | val;
+
        dev_vdbg(&max8660->client->dev, "Writing reg %02x with %02x\n",
                        max8660_addresses[reg], reg_val);
 
@@ -112,6 +113,7 @@ static int max8660_dcdc_is_enabled(struct regulator_dev *rdev)
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 val = max8660->shadow_regs[MAX8660_OVER1];
        u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
+
        return !!(val & mask);
 }
 
@@ -119,6 +121,7 @@ static int max8660_dcdc_enable(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 bit = (rdev_get_id(rdev) == MAX8660_V3) ? 1 : 4;
+
        return max8660_write(max8660, MAX8660_OVER1, 0xff, bit);
 }
 
@@ -126,15 +129,16 @@ static int max8660_dcdc_disable(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 mask = (rdev_get_id(rdev) == MAX8660_V3) ? ~1 : ~4;
+
        return max8660_write(max8660, MAX8660_OVER1, mask, 0);
 }
 
 static int max8660_dcdc_get_voltage_sel(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
-
        u8 reg = (rdev_get_id(rdev) == MAX8660_V3) ? MAX8660_ADTV2 : MAX8660_SDTV2;
        u8 selector = max8660->shadow_regs[reg];
+
        return selector;
 }
 
@@ -207,6 +211,7 @@ static int max8660_ldo67_is_enabled(struct regulator_dev *rdev)
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 val = max8660->shadow_regs[MAX8660_OVER2];
        u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
+
        return !!(val & mask);
 }
 
@@ -214,6 +219,7 @@ static int max8660_ldo67_enable(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 bit = (rdev_get_id(rdev) == MAX8660_V6) ? 2 : 4;
+
        return max8660_write(max8660, MAX8660_OVER2, 0xff, bit);
 }
 
@@ -221,15 +227,16 @@ static int max8660_ldo67_disable(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
        u8 mask = (rdev_get_id(rdev) == MAX8660_V6) ? ~2 : ~4;
+
        return max8660_write(max8660, MAX8660_OVER2, mask, 0);
 }
 
 static int max8660_ldo67_get_voltage_sel(struct regulator_dev *rdev)
 {
        struct max8660 *max8660 = rdev_get_drvdata(rdev);
-
        u8 shift = (rdev_get_id(rdev) == MAX8660_V6) ? 0 : 4;
        u8 selector = (max8660->shadow_regs[MAX8660_L12VCR] >> shift) & 0xf;
+
        return selector;
 }
 
@@ -330,7 +337,7 @@ static int max8660_pdata_from_dt(struct device *dev,
        struct max8660_subdev_data *sub;
        struct of_regulator_match rmatch[ARRAY_SIZE(max8660_reg)];
 
-       np = of_find_node_by_name(dev->of_node, "regulators");
+       np = of_get_child_by_name(dev->of_node, "regulators");
        if (!np) {
                dev_err(dev, "missing 'regulators' subnode in DT\n");
                return -EINVAL;
@@ -340,6 +347,7 @@ static int max8660_pdata_from_dt(struct device *dev,
                rmatch[i].name = max8660_reg[i].name;
 
        matched = of_regulator_match(dev, np, rmatch, ARRAY_SIZE(rmatch));
+       of_node_put(np);
        if (matched <= 0)
                return matched;
 
@@ -373,7 +381,6 @@ static inline int max8660_pdata_from_dt(struct device *dev,
 static int max8660_probe(struct i2c_client *client,
                                   const struct i2c_device_id *i2c_id)
 {
-       struct regulator_dev **rdev;
        struct device *dev = &client->dev;
        struct max8660_platform_data *pdata = dev_get_platdata(dev);
        struct regulator_config config = { };
@@ -406,14 +413,11 @@ static int max8660_probe(struct i2c_client *client,
                return -EINVAL;
        }
 
-       max8660 = devm_kzalloc(dev, sizeof(struct max8660) +
-                       sizeof(struct regulator_dev *) * MAX8660_V_END,
-                       GFP_KERNEL);
+       max8660 = devm_kzalloc(dev, sizeof(struct max8660), GFP_KERNEL);
        if (!max8660)
                return -ENOMEM;
 
        max8660->client = client;
-       rdev = max8660->rdev;
 
        if (pdata->en34_is_high) {
                /* Simulate always on */
@@ -481,6 +485,7 @@ static int max8660_probe(struct i2c_client *client,
 
        /* Finally register devices */
        for (i = 0; i < pdata->num_subdevs; i++) {
+               struct regulator_dev *rdev;
 
                id = pdata->subdevs[i].id;
 
@@ -489,13 +494,13 @@ static int max8660_probe(struct i2c_client *client,
                config.of_node = of_node[i];
                config.driver_data = max8660;
 
-               rdev[i] = devm_regulator_register(&client->dev,
+               rdev = devm_regulator_register(&client->dev,
                                                  &max8660_reg[id], &config);
-               if (IS_ERR(rdev[i])) {
-                       ret = PTR_ERR(rdev[i]);
+               if (IS_ERR(rdev)) {
+                       ret = PTR_ERR(rdev);
                        dev_err(&client->dev, "failed to register %s\n",
                                max8660_reg[id].name);
-                       return PTR_ERR(rdev[i]);
+                       return PTR_ERR(rdev);
                }
        }