regulator: make the dummy regulator's print_constraint more helpful

This prevents the output of just

	dummy:

in the boot log. Now it says:

	regulator-dummy: no parameters

which at least doesn't make it look like an accidental printk and also doesn't
only use "dummy" which could mean anything.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

2 files changed, 4 insertions, 1 deletions

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 5f2221095a46..157def15ed78 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -778,6 +778,9 @@ static void print_constraints(struct regulator_dev *rdev)
         if (constraints->valid_modes_mask & REGULATOR_MODE_STANDBY)
                 count += sprintf(buf + count, "standby");
 
+        if (!count)
+                sprintf(buf, "no parameters");
+
         rdev_info(rdev, "%s\n", buf);
 
         if ((constraints->min_uV != constraints->max_uV) &&
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
index 86f655c7f7a1..03a1d7c11ef2 100644
--- a/drivers/regulator/dummy.c
+++ b/drivers/regulator/dummy.c
@@ -30,7 +30,7 @@ static struct regulator_init_data dummy_initdata;
 static struct regulator_ops dummy_ops;
 
 static struct regulator_desc dummy_desc = {
-        .name = "dummy",
+        .name = "regulator-dummy",
         .id = -1,
         .type = REGULATOR_VOLTAGE,
         .owner = THIS_MODULE,