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SubjectApplied "regulator: don't try to use DT information without CONFIG_OF" to the regulator tree
The patch

regulator: don't try to use DT information without CONFIG_OF

has been applied to the regulator tree at

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
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From 30f00f4897a093bb2b0308caab7855d6b75e9e1b Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <>
Date: Tue, 6 Mar 2018 13:33:09 +0100
Subject: [PATCH] regulator: don't try to use DT information without CONFIG_OF

The coupled regulator support requires CONFIG_OF today, otherwise
we get a link error:

drivers/regulator/core.o: In function `regulator_fill_coupling_array':
core.c:(.text+0x3e44): undefined reference to `of_parse_coupled_regulator'
drivers/regulator/core.o: In function `regulator_register':
core.c:(.text+0x5eb4): undefined reference to `of_get_n_coupled'
core.c:(.text+0x5f08): undefined reference to `of_check_coupling_data'

This changes the affected functions to return success when CONFIG_OF
is disabled, which should result in the same behavior as before.

Fixes: cf6fc8064766 ("regulator: core: Resolve coupled regulators")
Signed-off-by: Arnd Bergmann <>
Signed-off-by: Mark Brown <>
drivers/regulator/core.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index d68244ad9423..e685f8b94acf 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -4345,6 +4345,9 @@ static int regulator_register_fill_coupling_array(struct device *dev,
struct regulator_dev *rdev = dev_to_rdev(dev);

+ return 0;
if (regulator_fill_coupling_array(rdev))
rdev_dbg(rdev, "unable to resolve coupling\n");

@@ -4353,7 +4356,12 @@ static int regulator_register_fill_coupling_array(struct device *dev,

static int regulator_resolve_coupling(struct regulator_dev *rdev)
- int n_phandles = of_get_n_coupled(rdev);
+ int n_phandles;
+ return 0;
+ n_phandles = of_get_n_coupled(rdev);

if (n_phandles + 1 > MAX_COUPLED) {
rdev_err(rdev, "too many regulators coupled\n");
 \ /
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