regulator: Don't warn on omitted voltage constraints
Specifying voltage constraints is optional (and only needed if the
consumer is allowed to change the voltage) so don't complain unless
a voltage has been specified.
Also avoid surprises with a dangling else while we're here.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index da357a0..2ff7634 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -709,8 +709,12 @@
cmax = INT_MAX;
}
+ /* voltage constraints are optional */
+ if ((cmin == 0) && (cmax == 0))
+ goto out;
+
/* else require explicit machine-level constraints */
- else if (cmin <= 0 || cmax <= 0 || cmax < cmin) {
+ if (cmin <= 0 || cmax <= 0 || cmax < cmin) {
pr_err("%s: %s '%s' voltage constraints\n",
__func__, "invalid", name);
ret = -EINVAL;