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* [PATCH] regulator: axp20x: Fix LDO4 linear voltage range
@ 2016-04-26 14:00 ` Maxime Ripard
  0 siblings, 0 replies; 12+ messages in thread
From: Maxime Ripard @ 2016-04-26 14:00 UTC (permalink / raw)
  To: Mark Brown, Chen-Yu Tsai, Liam Girdwood
  Cc: linux-kernel, linux-arm-kernel, Maxime Ripard

The current linear voltage range for the LDO4 regulator found in the APX20X
PMICs assumes that the voltage is linear between 2.5 and 3.1V.

However, the PMIC can output up to 3.3V on that regulator by skipping the
2.6V and 2.9V steps.

Fix the ranges to read and set the proper voltages.

Fixes: 13d57e64352a ("regulator: axp20x: Use linear voltage ranges for AXP20X LDO4")
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
Hi Mark,

This patch fixes a commit merged into 4.6-rc1, so it should probably go in
the next -rc release.

Thanks!
Maxime

 drivers/regulator/axp20x-regulator.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index 40cd894e4df5..29ab0985b46e 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -157,7 +157,9 @@ static struct regulator_ops axp20x_ops_sw = {
 static const struct regulator_linear_range axp20x_ldo4_ranges[] = {
 	REGULATOR_LINEAR_RANGE(1250000, 0x0, 0x0, 0),
 	REGULATOR_LINEAR_RANGE(1300000, 0x1, 0x8, 100000),
-	REGULATOR_LINEAR_RANGE(2500000, 0x9, 0xf, 100000),
+	REGULATOR_LINEAR_RANGE(2500000, 0x9, 0x9, 0),
+	REGULATOR_LINEAR_RANGE(2700000, 0xa, 0xb, 100000),
+	REGULATOR_LINEAR_RANGE(3000000, 0xc, 0xf, 100000),
 };
 
 static const struct regulator_desc axp20x_regulators[] = {
-- 
2.8.1

^ permalink raw reply related	[flat|nested] 12+ messages in thread

end of thread, other threads:[~2016-04-27 10:32 UTC | newest]

Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-04-26 14:00 [PATCH] regulator: axp20x: Fix LDO4 linear voltage range Maxime Ripard
2016-04-26 14:00 ` Maxime Ripard
2016-04-26 14:18 ` Chen-Yu Tsai
2016-04-26 14:18   ` Chen-Yu Tsai
2016-04-26 14:57   ` Mark Brown
2016-04-26 14:57     ` Mark Brown
2016-04-27  9:46     ` Hans de Goede
2016-04-27  9:46       ` Hans de Goede
2016-04-27 10:32       ` Mark Brown
2016-04-27 10:32         ` Mark Brown
2016-04-26 18:25 ` Applied "regulator: axp20x: Fix LDO4 linear voltage range" to the regulator tree Mark Brown
2016-04-26 18:25   ` Mark Brown

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