regulator: gpio: add gpios-status for DT
config->gpios[x].flags indicates initial pin status,
and it will be used for drvdata->state
on gpio_regulator_probe().
But, current of_get_gpio_regulator_config() doesn't care
about this flags.
This patch adds new gpios-status property in order to
care about initial pin status.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index bad44f3..ac3a8c7 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -172,11 +172,22 @@
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) {
+ /* gpios <-> gpios-states mismatch */
+ prop = NULL;
+ }
+ }
+
for (i = 0; i < config->nr_gpios; i++) {
gpio = of_get_named_gpio(np, "gpios", i);
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;
}
/* Fetch states. */