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SubjectApplied "regulator: add regulator_get_linear_step() stub helper" to the regulator tree
The patch

regulator: add regulator_get_linear_step() stub helper

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 7287275b4301e230be9e4569431c7dacb67ebc13 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <>
Date: Mon, 4 Mar 2019 20:38:29 +0100
Subject: [PATCH] regulator: add regulator_get_linear_step() stub helper

The regulator header has empty inline functions for most interfaces,
but not regulator_get_linear_step(), which has just grown a user
that does not depend on regulators otherwise:

drivers/clk/tegra/clk-tegra124-dfll-fcpu.c: In function 'get_alignment_from_regulator':
drivers/clk/tegra/clk-tegra124-dfll-fcpu.c:555:19: error: implicit declaration of function 'regulator_get_linear_step'; did you mean 'regulator_get_drvdata'? [-Werror=implicit-function-declaration]
align->step_uv = regulator_get_linear_step(reg);
cc1: all warnings being treated as errors
scripts/ recipe for target 'drivers/clk/tegra/clk-tegra124-dfll-fcpu.o' failed

Add the missing stub along the others.

Fixes: b3cf8d069505 ("clk: tegra: dfll: CVB calculation alignment with the regulator")
Signed-off-by: Arnd Bergmann <>
Signed-off-by: Mark Brown <>
include/linux/regulator/consumer.h | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f3f76051e8b0..aaf3cee70439 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -478,6 +478,11 @@ static inline int regulator_is_supported_voltage(struct regulator *regulator,
return 0;

+static inline unsigned int regulator_get_linear_step(struct regulator *regulator)
+ return 0;
static inline int regulator_set_current_limit(struct regulator *regulator,
int min_uA, int max_uA)
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