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Commit 001d62d4 authored by Justin Paupore's avatar Justin Paupore Committed by Rohit Vaswani
Browse files

regulator: Add regulator_bulk_set_voltage 



Add a convenience API to set the voltage on multiple consumers
stored in a struct regulator_bulk_data[] in one API call.

Change-Id: Iaeb5ba8c357a66f1401fb1e142bb03904e8e9c7c
Signed-off-by: default avatarJustin Paupore <jpaupore@codeaurora.org>
parent d68c0879

drivers/regulator/core.c

+36 −0
Original line number Original line Diff line number Diff line
@@ -3533,6 +3533,42 @@ err: 
}

}

EXPORT_SYMBOL_GPL(regulator_bulk_enable);

EXPORT_SYMBOL_GPL(regulator_bulk_enable);





/**

 * regulator_bulk_set_voltage - set voltage for multiple regulator consumers

 *

 * @num_consumers: Number of consumers

 * @consumers:     Consumer data; clients are stored here.

 * @return         0 on success, an errno on failure

 *

 * This convenience API allows the voted voltage ranges of multiple regulator

 * clients to be set in a single API call. If any consumers cannot have their

 * voltages set, this function returns WITHOUT withdrawing votes for any

 * consumers that have already been set.

 */

int regulator_bulk_set_voltage(int num_consumers,

			       struct regulator_bulk_data *consumers)

{

	int i;

	int rc;



	for (i = 0; i < num_consumers; i++) {

		if (!consumers[i].min_uV && !consumers[i].max_uV)

			continue;

		rc = regulator_set_voltage(consumers[i].consumer,

				consumers[i].min_uV,

				consumers[i].max_uV);

		if (rc)

			goto err;

	}



	return 0;



err:

	pr_err("Failed to set voltage for %s: %d\n", consumers[i].supply, rc);

	return rc;

}

EXPORT_SYMBOL_GPL(regulator_bulk_set_voltage);



/**

/**

 * regulator_bulk_disable - disable multiple regulator consumers

 * regulator_bulk_disable - disable multiple regulator consumers

 *

 *

include/linux/regulator/consumer.h

+8 −0
Original line number Original line Diff line number Diff line
@@ -144,6 +144,10 @@ struct regulator; 
 *            using the bulk regulator APIs.

 *            using the bulk regulator APIs.

 * @consumer: The regulator consumer for the supply.  This will be managed

 * @consumer: The regulator consumer for the supply.  This will be managed

 *            by the bulk API.

 *            by the bulk API.

 * @min_uV:   The minimum requested voltage for the regulator (in microvolts),

 *            or 0 to not set a voltage.

 * @max_uV:   The maximum requested voltage for the regulator (in microvolts),

 *            or 0 to use @min_uV.

 *

 *

 * The regulator APIs provide a series of regulator_bulk_() API calls as

 * The regulator APIs provide a series of regulator_bulk_() API calls as

 * a convenience to consumers which require multiple supplies.  This

 * a convenience to consumers which require multiple supplies.  This
@@ -152,6 +156,8 @@ struct regulator; 
struct regulator_bulk_data {

struct regulator_bulk_data {

	const char *supply;

	const char *supply;

	struct regulator *consumer;

	struct regulator *consumer;

	int min_uV;

	int max_uV;





	/* private: Internal use */

	/* private: Internal use */

	int ret;

	int ret;
@@ -216,6 +222,8 @@ int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers, 
					 struct regulator_bulk_data *consumers);

					 struct regulator_bulk_data *consumers);

int __must_check regulator_bulk_enable(int num_consumers,

int __must_check regulator_bulk_enable(int num_consumers,

				       struct regulator_bulk_data *consumers);

				       struct regulator_bulk_data *consumers);

int regulator_bulk_set_voltage(int num_consumers,

			  struct regulator_bulk_data *consumers);

int regulator_bulk_disable(int num_consumers,

int regulator_bulk_disable(int num_consumers,

			   struct regulator_bulk_data *consumers);

			   struct regulator_bulk_data *consumers);

int regulator_bulk_force_disable(int num_consumers,

int regulator_bulk_force_disable(int num_consumers,