regulator: Remove support for optional supplies in the bulk API

The patch was based on my missinterpretation of the API and only
accidentally worked for me. Let's clean it out to not confuse others.

This reverts commit 3ff3f518a1.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/core.c

@@ -3483,10 +3483,8 @@ int regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = _regulator_get(dev,
-						       consumers[i].supply,
-						       false,
-						       !consumers[i].optional);
+		consumers[i].consumer = regulator_get(dev,
+						      consumers[i].supply);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",

drivers/regulator/devres.c

@@ -164,11 +164,8 @@ int devm_regulator_bulk_get(struct device *dev, int num_consumers,
 		consumers[i].consumer = NULL;
 
 	for (i = 0; i < num_consumers; i++) {
-		consumers[i].consumer = _devm_regulator_get(dev,
-							    consumers[i].supply,
-							    consumers[i].optional ?
-								OPTIONAL_GET :
-								NORMAL_GET);
+		consumers[i].consumer = devm_regulator_get(dev,
+							   consumers[i].supply);
 		if (IS_ERR(consumers[i].consumer)) {
 			ret = PTR_ERR(consumers[i].consumer);
 			dev_err(dev, "Failed to get supply '%s': %d\n",

include/linux/regulator/consumer.h

@@ -140,8 +140,6 @@ struct regulator;
  *
  * @supply:   The name of the supply.  Initialised by the user before
  *            using the bulk regulator APIs.
- * @optional: The supply should be considered optional. Initialised by the user
- *            before using the bulk regulator APIs.
  * @consumer: The regulator consumer for the supply.  This will be managed
  *            by the bulk API.
  *
@@ -151,7 +149,6 @@ struct regulator;
  */
 struct regulator_bulk_data {
 	const char *supply;
-	bool optional;
 	struct regulator *consumer;
 
 	/* private: Internal use */