linux-kernel - [PATCH] regulator: core: use regulator name for sysfs

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Date:	Thu, 21 Feb 2013 16:53:57 +0900
From:	Shawn Joo <sjoo@...dia.com>
To:	<broonie@...nsource.wolfsonmicro.com>,
	<linux-kernel@...r.kernel.org>
CC:	<sjoo@...dia.com>
Subject: [PATCH] regulator: core: use regulator name for sysfs

regulator is named by numbering on sysfs, e.g. regulator.0, regulator.1
it confuses to find desired regulator before counting the order.
add option for regulator name by use_name_onsysfs.
if it is true and name is not NULL, desc's name will be the name.
e.g. if name in desc is "LDO0", then regulator.LDO0 on sysfs.
otherwise it follows origin.

Signed-off-by: Shawn Joo <sjoo@...dia.com>
---
 drivers/regulator/core.c         |    7 ++++++-
 include/linux/regulator/driver.h |    1 +
 2 files changed, 7 insertions(+), 1 deletions(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 2785843..4dde54d 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -3399,7 +3399,12 @@ regulator_register(const struct regulator_desc *regulator_desc,
 	rdev->dev.class = &regulator_class;
 	rdev->dev.of_node = config->of_node;
 	rdev->dev.parent = dev;
-	dev_set_name(&rdev->dev, "regulator.%d",
+	if (regulator_desc->use_name_onsysfs &&
+			regulator_desc->name != NULL)
+		dev_set_name(&rdev->dev, "regulator.%s",
+			regulator_desc->name);
+	else
+		dev_set_name(&rdev->dev, "regulator.%d",
 		     atomic_inc_return(&regulator_no) - 1);
 	ret = device_register(&rdev->dev);
 	if (ret != 0) {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index d10bb0f..597f8dd 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -224,6 +224,7 @@ struct regulator_desc {
 	unsigned int bypass_mask;
 
 	unsigned int enable_time;
+	bool use_name_onsysfs;
 };
 
 /**
-- 
1.7.0.4

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