regulator: core: have _regulator_get() accept get_type argument

Instead of separate "exclusive" and "allow_dummy" arguments, that formed 3
valid combinations (normal, exclusive and optional) and an invalid one,
let's accept explicit "get_type", like we did in devm-managed code.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index b0ee068..206c274 100644 (file)
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -1580,14 +1580,19 @@ static int regulator_resolve_supply(struct regulator_dev *rdev)
 }
 
 /* Internal regulator request function */
-static struct regulator *_regulator_get(struct device *dev, const char *id,
-                                       bool exclusive, bool allow_dummy)
+struct regulator *_regulator_get(struct device *dev, const char *id,
+                                enum regulator_get_type get_type)
 {
        struct regulator_dev *rdev;
        struct regulator *regulator;
        const char *devname = NULL;
        int ret;
 
+       if (get_type >= MAX_GET_TYPE) {
+               dev_err(dev, "invalid type %d in %s\n", get_type, __func__);
+               return ERR_PTR(-EINVAL);
+       }
+
        if (id == NULL) {
                pr_err("get() with no identifier\n");
                return ERR_PTR(-EINVAL);
@@ -1616,7 +1621,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
         * Assume that a regulator is physically present and enabled
         * even if it isn't hooked up and just provide a dummy.
         */
-       if (have_full_constraints() && allow_dummy) {
+       if (have_full_constraints() && get_type == NORMAL_GET) {
                pr_warn("%s supply %s not found, using dummy regulator\n",
                        devname, id);
 
@@ -1624,7 +1629,7 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
                get_device(&rdev->dev);
                goto found;
        /* Don't log an error when called from regulator_get_optional() */
-       } else if (!have_full_constraints() || exclusive) {
+       } else if (!have_full_constraints() || get_type == EXCLUSIVE_GET) {
                dev_warn(dev, "dummy supplies not allowed\n");
        }
 
@@ -1637,7 +1642,7 @@ found:
                return regulator;
        }
 
-       if (exclusive && rdev->open_count) {
+       if (get_type == EXCLUSIVE_GET && rdev->open_count) {
                regulator = ERR_PTR(-EBUSY);
                put_device(&rdev->dev);
                return regulator;
@@ -1665,7 +1670,7 @@ found:
        }
 
        rdev->open_count++;
-       if (exclusive) {
+       if (get_type == EXCLUSIVE_GET) {
                rdev->exclusive = 1;
 
                ret = _regulator_is_enabled(rdev);
@@ -1693,7 +1698,7 @@ found:
  */
 struct regulator *regulator_get(struct device *dev, const char *id)
 {
-       return _regulator_get(dev, id, false, true);
+       return _regulator_get(dev, id, NORMAL_GET);
 }
 EXPORT_SYMBOL_GPL(regulator_get);
 
@@ -1720,7 +1725,7 @@ EXPORT_SYMBOL_GPL(regulator_get);
  */
 struct regulator *regulator_get_exclusive(struct device *dev, const char *id)
 {
-       return _regulator_get(dev, id, true, false);
+       return _regulator_get(dev, id, EXCLUSIVE_GET);
 }
 EXPORT_SYMBOL_GPL(regulator_get_exclusive);
 
@@ -1746,7 +1751,7 @@ EXPORT_SYMBOL_GPL(regulator_get_exclusive);
  */
 struct regulator *regulator_get_optional(struct device *dev, const char *id)
 {
-       return _regulator_get(dev, id, false, false);
+       return _regulator_get(dev, id, OPTIONAL_GET);
 }
 EXPORT_SYMBOL_GPL(regulator_get_optional);
 

diff --git a/drivers/regulator/devres.c b/drivers/regulator/devres.c
index 6ec1d40..965d1d3 100644 (file)
--- a/drivers/regulator/devres.c
+++ b/drivers/regulator/devres.c
@@ -19,12 +19,6 @@
 
 #include "internal.h"
 
-enum {
-       NORMAL_GET,
-       EXCLUSIVE_GET,
-       OPTIONAL_GET,
-};
-
 static void devm_regulator_release(struct device *dev, void *res)
 {
        regulator_put(*(struct regulator **)res);
@@ -39,20 +33,7 @@ static struct regulator *_devm_regulator_get(struct device *dev, const char *id,
        if (!ptr)
                return ERR_PTR(-ENOMEM);
 
-       switch (get_type) {
-       case NORMAL_GET:
-               regulator = regulator_get(dev, id);
-               break;
-       case EXCLUSIVE_GET:
-               regulator = regulator_get_exclusive(dev, id);
-               break;
-       case OPTIONAL_GET:
-               regulator = regulator_get_optional(dev, id);
-               break;
-       default:
-               regulator = ERR_PTR(-EINVAL);
-       }
-
+       regulator = _regulator_get(dev, id, get_type);
        if (!IS_ERR(regulator)) {
                *ptr = regulator;
                devres_add(dev, ptr);

diff --git a/drivers/regulator/internal.h b/drivers/regulator/internal.h
index c74ac87..1dd575b 100644 (file)
--- a/drivers/regulator/internal.h
+++ b/drivers/regulator/internal.h
@@ -51,4 +51,14 @@ regulator_of_get_init_data(struct device *dev,
 }
 #endif
 
+enum regulator_get_type {
+       NORMAL_GET,
+       EXCLUSIVE_GET,
+       OPTIONAL_GET,
+       MAX_GET_TYPE
+};
+
+struct regulator *_regulator_get(struct device *dev, const char *id,
+                                enum regulator_get_type get_type);
+
 #endif