regulator: palmas: Use devm_regulator_register

devm_* simplifies the code.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 488dfe7ce9a6c048a751029451df59d6f6f2c074..6c9670ff6be57c068c4af9d2bc68899bbf68b6a0 100644 (file)
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -862,7 +862,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                        if (ret < 0) {
                                dev_err(&pdev->dev,
                                        "reading TSTEP reg failed: %d\n", ret);
-                               goto err_unregister_regulator;
+                               return ret;
                        }
                        pmic->desc[id].ramp_delay =
                                        palmas_smps_ramp_delay[reg & 0x3];
@@ -874,7 +874,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                        reg_init = pdata->reg_init[id];
                        ret = palmas_smps_init(palmas, id, reg_init);
                        if (ret)
-                               goto err_unregister_regulator;
+                               return ret;
                }
 
                /* Register the regulators */
@@ -915,7 +915,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
                        ret = palmas_smps_read(pmic->palmas, addr, &reg);
                        if (ret)
-                               goto err_unregister_regulator;
+                               return ret;
                        if (reg & PALMAS_SMPS12_VOLTAGE_RANGE)
                                pmic->range[id] = 1;
 
@@ -931,7 +931,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                        addr = palmas_regs_info[id].ctrl_addr;
                        ret = palmas_smps_read(pmic->palmas, addr, &reg);
                        if (ret)
-                               goto err_unregister_regulator;
+                               return ret;
                        pmic->current_reg_mode[id] = reg &
                                        PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
                }
@@ -947,13 +947,13 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                pmic->desc[id].supply_name = palmas_regs_info[id].sname;
                config.of_node = palmas_matches[id].of_node;
 
-               rdev = regulator_register(&pmic->desc[id], &config);
+               rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id],
+                                              &config);
                if (IS_ERR(rdev)) {
                        dev_err(&pdev->dev,
                                "failed to register %s regulator\n",
                                pdev->name);
-                       ret = PTR_ERR(rdev);
-                       goto err_unregister_regulator;
+                       return PTR_ERR(rdev);
                }
 
                /* Save regulator for cleanup */
@@ -1015,13 +1015,13 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                pmic->desc[id].supply_name = palmas_regs_info[id].sname;
                config.of_node = palmas_matches[id].of_node;
 
-               rdev = regulator_register(&pmic->desc[id], &config);
+               rdev = devm_regulator_register(&pdev->dev, &pmic->desc[id],
+                                              &config);
                if (IS_ERR(rdev)) {
                        dev_err(&pdev->dev,
                                "failed to register %s regulator\n",
                                pdev->name);
-                       ret = PTR_ERR(rdev);
-                       goto err_unregister_regulator;
+                       return PTR_ERR(rdev);
                }
 
                /* Save regulator for cleanup */
@@ -1039,7 +1039,7 @@ static int palmas_regulators_probe(struct platform_device *pdev)
                                                        id, reg_init);
                                if (ret) {
                                        regulator_unregister(pmic->rdev[id]);
-                                       goto err_unregister_regulator;
+                                       return ret;
                                }
                        }
                }
@@ -1047,21 +1047,6 @@ static int palmas_regulators_probe(struct platform_device *pdev)
 
 
        return 0;
-
-err_unregister_regulator:
-       while (--id >= 0)
-               regulator_unregister(pmic->rdev[id]);
-       return ret;
-}
-
-static int palmas_regulators_remove(struct platform_device *pdev)
-{
-       struct palmas_pmic *pmic = platform_get_drvdata(pdev);
-       int id;
-
-       for (id = 0; id < PALMAS_NUM_REGS; id++)
-               regulator_unregister(pmic->rdev[id]);
-       return 0;
 }
 
 static struct of_device_id of_palmas_match_tbl[] = {
@@ -1083,7 +1068,6 @@ static struct platform_driver palmas_driver = {
                .owner = THIS_MODULE,
        },
        .probe = palmas_regulators_probe,
-       .remove = palmas_regulators_remove,
 };
 
 static int __init palmas_init(void)