[PATCH 3.13.y-ckt 015/143] ARM: pxa: add regulator_has_full_constraints to poodle board file

Kamal Mostafa kamal at canonical.com
Tue Mar 31 19:46:20 UTC 2015

3.13.11-ckt18 -stable review patch.  If anyone has any objections, please let me know.


From: Dmitry Eremin-Solenikov <dbaryshkov at gmail.com>

commit 9bc78f32c2e430aebf6def965b316aa95e37a20c upstream.

Add regulator_has_full_constraints() call to poodle 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 poodle 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

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov at gmail.com>
Acked-by: Mark Brown <broonie at kernel.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik at free.fr>
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
 arch/arm/mach-pxa/poodle.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index aedf053..b4fff29 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -25,6 +25,7 @@
 #include <linux/gpio.h>
 #include <linux/i2c.h>
 #include <linux/i2c/pxa-i2c.h>
+#include <linux/regulator/machine.h>
 #include <linux/spi/spi.h>
 #include <linux/spi/ads7846.h>
 #include <linux/spi/pxa2xx_spi.h>
@@ -454,6 +455,7 @@ static void __init poodle_init(void)
 	i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
+	regulator_has_full_constraints();
 static void __init fixup_poodle(struct tag *tags, char **cmdline,

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