diff options
Diffstat (limited to 'drivers/regulator/gpio-regulator.c')
| -rw-r--r-- | drivers/regulator/gpio-regulator.c | 22 |
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. */ |