@@ -56,6 +56,15 @@ config REGULATOR_USERSPACE_CONSUMER
If unsure, say no.
+config REGULATOR_EXTERNAL_CONSUMER
+ bool "External regulator consumer support"
+ help
+ Some regulators supply devices that are entirely external to
+ the system. This driver provides a placeholder consumer
+ representing such devices.
+
+ If unsure, say no.
+
config REGULATOR_88PG86X
tristate "Marvell 88PG86X voltage regulators"
depends on I2C
@@ -19,6 +19,7 @@
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/regulator/of_regulator.h>
#include <linux/regulator/consumer.h>
@@ -6070,6 +6071,33 @@ static int regulator_summary_show(struct seq_file *s, void *data)
DEFINE_SHOW_ATTRIBUTE(regulator_summary);
#endif /* CONFIG_DEBUG_FS */
+#ifdef CONFIG_REGULATOR_EXTERNAL_CONSUMER
+static int regulator_external_output_probe(struct platform_device *pdev)
+{
+ struct regulator *reg;
+
+ reg = devm_regulator_get_external(&pdev->dev, "vout");
+ if (IS_ERR(reg))
+ return PTR_ERR(reg);
+
+ return 0;
+}
+
+static const struct of_device_id reg_external_consumer_of_match_table[] = {
+ { .compatible = "regulator-external-output" },
+ { },
+};
+
+static struct platform_driver reg_external_consumer_driver = {
+ .driver = {
+ .name = "reg-external-consumer",
+ .of_match_table = reg_external_consumer_of_match_table,
+ },
+ .probe = regulator_external_output_probe,
+};
+builtin_platform_driver(reg_external_consumer_driver);
+#endif /* CONFIG_REGULATOR_EXTERNAL_CONSUMER */
+
static int __init regulator_init(void)
{
int ret;
An external consumer is a dummy device representing a device external to the system that is supplied by a regulator designated for external output. It is purely a virtual placeholder to instantiate a regulator by calling regulator_get() on it from its probe function. Signed-off-by: Zev Weiss <zev@bewilderbeest.net> --- drivers/regulator/Kconfig | 9 +++++++++ drivers/regulator/core.c | 28 ++++++++++++++++++++++++++++ 2 files changed, 37 insertions(+)