linux-kernel - [PATCH 3.16.y-ckt 011/183] ARM: pxa: add regulator_has_full

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Date:	Fri,  6 Mar 2015 09:55:02 +0000
From:	Luis Henriques <luis.henriques@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
	Robert Jarzmik <robert.jarzmik@...e.fr>,
	Luis Henriques <luis.henriques@...onical.com>
Subject: [PATCH 3.16.y-ckt 011/183] ARM: pxa: add regulator_has_full_constraints to spitz board file

3.16.7-ckt8 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>

commit baad2dc49c5d970ea881d92981a1b76c94a7b7a1 upstream.

Add regulator_has_full_constraints() call to spitz board file to let
regulator core know that we do not have any additional regulators left.
This lets it substitute unprovided regulators with dummy ones.

This fixes the following warnings that can be seen on spitz if
regulators are enabled:

ads7846 spi2.0: unable to get regulator: -517
spi spi2.0: Driver ads7846 requests probe deferral

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
Acked-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@...e.fr>
[ luis: backported to 3.16: adjusted context ]
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 arch/arm/mach-pxa/spitz.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index 840c3a48e720..f4f713b2fea2 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -970,6 +970,8 @@ static void __init spitz_init(void)
 	spitz_nor_init();
 	spitz_nand_init();
 	spitz_i2c_init();
+
+	regulator_has_full_constraints();
 }
 
 static void __init spitz_fixup(struct tag *tags, char **cmdline)
--
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