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From: Steffen Trumtrar <s.trumtrar@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Subject: [PATCH] regulator: fixed: add always-on property
Date: Mon, 30 Jun 2014 09:51:56 +0200	[thread overview]
Message-ID: <1404114716-27533-1-git-send-email-s.trumtrar@pengutronix.de> (raw)

Support the "regulator-always-on" property for fixed regulators.
The regulator gets enabled on probe and subsequent disable calls are
ignored.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
---
 drivers/regulator/fixed.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 7e64919..2515d3e 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -27,6 +27,7 @@
 struct regulator_fixed {
 	int gpio;
 	int active_low;
+	int always_on;
 	struct regulator_dev rdev;
 };
 
@@ -44,6 +45,9 @@ static int regulator_fixed_disable(struct regulator_dev *rdev)
 {
 	struct regulator_fixed *fix = container_of(rdev, struct regulator_fixed, rdev);
 
+	if (fix->always_on)
+		return 0;
+
 	if (!gpio_is_valid(fix->gpio))
 		return 0;
 
@@ -79,6 +83,11 @@ static int regulator_fixed_probe(struct device_d *dev)
 
 	fix->rdev.ops = &fixed_ops;
 
+	if (of_find_property(dev->device_node, "regulator-always-on", NULL)) {
+		fix->always_on = 1;
+		regulator_fixed_enable(&fix->rdev);
+	}
+
 	ret = of_regulator_register(&fix->rdev, dev->device_node);
 	if (ret)
 		return ret;
-- 
2.0.0


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             reply	other threads:[~2014-06-30  7:52 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-30  7:51 Steffen Trumtrar [this message]
2014-07-11  7:56 ` Sascha Hauer

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