linux-kernel - [PATCH] regulator: gpio: Don't require a regulator-type property

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Date:	Thu,  5 Dec 2013 00:31:55 +0000
From:	Mark Brown <broonie@...nel.org>
To:	Liam Girdwood <lgirdwood@...il.com>,
	Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
Cc:	linux-kernel@...r.kernel.org, Mark Brown <broonie@...aro.org>
Subject: [PATCH] regulator: gpio: Don't require a regulator-type property

From: Mark Brown <broonie@...aro.org>

Since essentially all GPIO controlled regulators are voltage regulators
make the regulator-type property optional, defaulting to voltage.

Signed-off-by: Mark Brown <broonie@...aro.org>
---

Compile tested only.

 drivers/regulator/gpio-regulator.c | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index 234960dc9607..13ec94d984ca 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -203,17 +203,15 @@ of_get_gpio_regulator_config(struct device *dev, struct device_node *np)
 	}
 	config->nr_states = i;
 
+	config->type = REGULATOR_VOLTAGE;
 	ret = of_property_read_string(np, "regulator-type", &regtype);
-	if (ret < 0) {
-		dev_err(dev, "Missing 'regulator-type' property\n");
-		return ERR_PTR(-EINVAL);
+	if (ret >= 0) {
+		if (!strncmp("voltage", regtype, 7))
+			config->type = REGULATOR_VOLTAGE;
+		else if (!strncmp("current", regtype, 7))
+			config->type = REGULATOR_CURRENT;
 	}
 
-	if (!strncmp("voltage", regtype, 7))
-		config->type = REGULATOR_VOLTAGE;
-	else if (!strncmp("current", regtype, 7))
-		config->type = REGULATOR_CURRENT;
-
 	return config;
 }
 
-- 
1.8.5.1

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