[PATCH] regulator: giving regulator controlling gpios a non-empty label when used through the devicetree.

[Nicholas Lowell]

When the label is empty, it causes missing information and limits diagnostics
for instances such as 'cat /sys/kernel/debug/gpio'

Setting the label to the regulator supply_name will point to the device
using the gpio(s).

Signed-off-by: Nicholas Lowell <nlowell@xxxxxxxxxxx>
Signed-off-by: Mark Brown <broonie@xxxxxxxxxx>
---
 drivers/regulator/gpio-regulator.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index a2eb50719c7b..a86b8997bb54 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -196,6 +196,7 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np,
 				break;
 			}
 			config->gpios[i].gpio = gpio;
+			config->gpios[i].label = config->supply_name;
 			if (proplen > 0) {
 				of_property_read_u32_index(np, "gpios-states",
 							   i, &ret);
-- 
2.16.2