regulator: tps65132: Stop parsing DT when gpio is not found

In case of a missing (optional) gpio don't fall through up to
"ti,active-discharge-time-us" due to
devm_fwnode_get_index_gpiod_from_child() returning NULL (since
gpiod_get_from_of_node() returned NULL) but rather indicate success as
intended.

This makes the driver probe correctly when e.g. only the enable gpio is
given.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Link: https://lore.kernel.org/r/363bd50cc7c60daa57d614a341d1fd649f05194c.1567625660.git.agx@sigxcpu.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/tps65132-regulator.c b/drivers/regulator/tps65132-regulator.c
index 6e22f5e..e302bd0 100644 (file)
--- a/drivers/regulator/tps65132-regulator.c
+++ b/drivers/regulator/tps65132-regulator.c
@@ -138,7 +138,7 @@ static int tps65132_of_parse_cb(struct device_node *np,
 
        rpdata->en_gpiod = devm_fwnode_get_index_gpiod_from_child(tps->dev,
                                        "enable", 0, &np->fwnode, 0, "enable");
-       if (IS_ERR(rpdata->en_gpiod)) {
+       if (IS_ERR_OR_NULL(rpdata->en_gpiod)) {
                ret = PTR_ERR(rpdata->en_gpiod);
 
                /* Ignore the error other than probe defer */
@@ -150,7 +150,7 @@ static int tps65132_of_parse_cb(struct device_node *np,
        rpdata->act_dis_gpiod = devm_fwnode_get_index_gpiod_from_child(
                                        tps->dev, "active-discharge", 0,
                                        &np->fwnode, 0, "active-discharge");
-       if (IS_ERR(rpdata->act_dis_gpiod)) {
+       if (IS_ERR_OR_NULL(rpdata->act_dis_gpiod)) {
                ret = PTR_ERR(rpdata->act_dis_gpiod);
 
                /* Ignore the error other than probe defer */