regulator: gpio-regulator: fix forgotten gpios-states reading

Commit 934624d6e9f0 ("regulator: gpio-regulator: do not open-code counting
and access of dt array elements") forgot to convert the recently added
gpios-states property using the same pattern.

Convert this instance to use the of-helpers too, resolving the build error.

Signed-off-by: Heiko Stuebner <heiko.stuebner@bqreaders.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 13 insertions, 9 deletions

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 9fd55611016c..989b23b377c0 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -171,13 +171,14 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
         if (!config->gpios)
                 return ERR_PTR(-ENOMEM);
 
-        prop = of_find_property(np, "gpios-states", NULL);
-        if (prop) {
-                proplen = prop->length / sizeof(int);
-                if (proplen != config->nr_gpios) {
-                        dev_warn(dev, "gpios <-> gpios-states mismatch\n");
-                        prop = NULL;
-                }
+        proplen = of_property_count_u32_elems(np, "gpios-states");
+        /* optional property */
+        if (proplen < 0)
+                proplen = 0;
+
+        if (proplen > 0 && proplen != config->nr_gpios) {
+                dev_warn(dev, "gpios <-> gpios-states mismatch\n");
+                proplen = 0;
         }
 
         for (i = 0; i < config->nr_gpios; i++) {
@@ -185,8 +186,11 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
                 if (gpio < 0)
                         break;
                 config->gpios[i].gpio = gpio;
-                if (prop && be32_to_cpup((int *)prop->value + i))
-                        config->gpios[i].flags = GPIOF_OUT_INIT_HIGH;
+                if (proplen > 0) {
+                        of_property_read_u32_index(np, "gpios-states", i, &ret);
+                        if (ret)
+                                config->gpios[i].flags = GPIOF_OUT_INIT_HIGH;
+                }
         }
 
         /* Fetch states. */