[PATCH] regulator: axp20x: Fix LDO4 linear voltage range

From	Maxime Ripard <maxime.ripard@free-electrons.com>
Newsgroups	linux.kernel
Subject	[PATCH] regulator: axp20x: Fix LDO4 linear voltage range
Date	2016-04-26 16:10 +0200
Message-ID	<rsbQD-Gm-35@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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

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Thread

[PATCH] regulator: axp20x: Fix LDO4 linear voltage range Maxime Ripard <maxime.ripard@free-electrons.com> - 2016-04-26 16:10 +0200
  Re: [PATCH] regulator: axp20x: Fix LDO4 linear voltage range Chen-Yu Tsai <wens@csie.org> - 2016-04-26 16:20 +0200
    Re: [PATCH] regulator: axp20x: Fix LDO4 linear voltage range Mark Brown <broonie@kernel.org> - 2016-04-26 17:00 +0200
      Re: [PATCH] regulator: axp20x: Fix LDO4 linear voltage range Hans de Goede <hdegoede@redhat.com> - 2016-04-27 11:50 +0200
        Re: [PATCH] regulator: axp20x: Fix LDO4 linear voltage range Mark Brown <broonie@kernel.org> - 2016-04-27 12:40 +0200
  Applied "regulator: axp20x: Fix LDO4 linear voltage range" to the regulator tree Mark Brown <broonie@kernel.org> - 2016-04-26 20:30 +0200

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