linux-kernel - [PATCH 3.16.y-ckt 009/183] ARM: pxa: add regulator_has_full

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Message-Id: <1425635874-19087-10-git-send-email-luis.henriques@canonical.com>
Date:	Fri,  6 Mar 2015 09:55:00 +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 009/183] ARM: pxa: add regulator_has_full_constraints to corgi 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 271e80176aae4e5b481f4bb92df9768c6075bbca upstream.

Add regulator_has_full_constraints() call to corgi 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 corgi if
regulators are enabled:

ads7846 spi1.0: unable to get regulator: -517
spi spi1.0: Driver ads7846 requests probe deferral
wm8731 0-001b: Failed to get supply 'AVDD': -517
wm8731 0-001b: Failed to request supplies: -517
wm8731 0-001b: ASoC: failed to probe component -517
corgi-audio corgi-audio: ASoC: failed to instantiate card -517

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>
Signed-off-by: Luis Henriques <luis.henriques@...onical.com>
---
 arch/arm/mach-pxa/corgi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 91dd1c7cdbcd..b42615a60c25 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -26,6 +26,7 @@
 #include <linux/i2c.h>
 #include <linux/i2c/pxa-i2c.h>
 #include <linux/io.h>
+#include <linux/regulator/machine.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/spi/corgi_lcd.h>
@@ -752,6 +753,8 @@ static void __init corgi_init(void)
 		sharpsl_nand_partitions[1].size = 53 * 1024 * 1024;
 
 	platform_add_devices(devices, ARRAY_SIZE(devices));
+
+	regulator_has_full_constraints();
 }
 
 static void __init fixup_corgi(struct tag *tags, char **cmdline)
--
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