linux-kernel - [PATCH AUTOSEL 5.2 012/123] regulator: axp20x: fix DCDC5 and DCDC6 for AXP803

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Message-Id: <20190814021047.14828-12-sashal@kernel.org>
Date:   Tue, 13 Aug 2019 22:08:56 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Jernej Skrabec <jernej.skrabec@...l.net>,
        Mark Brown <broonie@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH AUTOSEL 5.2 012/123] regulator: axp20x: fix DCDC5 and DCDC6 for AXP803

From: Jernej Skrabec <jernej.skrabec@...l.net>

[ Upstream commit 8f46e22b5ac692b48d04bb722547ca17b66dda02 ]

Refactoring of axp20x driver introduced a bug in AXP803's DCDC6
regulator definition. AXP803_DCDC6_1120mV_STEPS was obtained by
subtracting 0x47 and 0x33. This should be 0x14 (hex) and not 14
(dec).

Refactoring also carried over a bug in DCDC5 regulator definition.
Number of possible voltages must be for 1 bigger than maximum valid
voltage index, because 0 is also valid and it means lowest voltage.

Fixes: 1dbe0ccb0631 ("regulator: axp20x-regulator: add support for AXP803")
Fixes: db4a555f7c4c ("regulator: axp20x: use defines for masks")
Signed-off-by: Jernej Skrabec <jernej.skrabec@...l.net>
Link: https://lore.kernel.org/r/20190713090717.347-3-jernej.skrabec@siol.net
Signed-off-by: Mark Brown <broonie@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/regulator/axp20x-regulator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/axp20x-regulator.c b/drivers/regulator/axp20x-regulator.c
index c951568994a11..989506bd90b19 100644
--- a/drivers/regulator/axp20x-regulator.c
+++ b/drivers/regulator/axp20x-regulator.c
@@ -174,14 +174,14 @@
 #define AXP803_DCDC5_1140mV_STEPS	35
 #define AXP803_DCDC5_1140mV_END		\
 	(AXP803_DCDC5_1140mV_START + AXP803_DCDC5_1140mV_STEPS)
-#define AXP803_DCDC5_NUM_VOLTAGES	68
+#define AXP803_DCDC5_NUM_VOLTAGES	69
 
 #define AXP803_DCDC6_600mV_START	0x00
 #define AXP803_DCDC6_600mV_STEPS	50
 #define AXP803_DCDC6_600mV_END		\
 	(AXP803_DCDC6_600mV_START + AXP803_DCDC6_600mV_STEPS)
 #define AXP803_DCDC6_1120mV_START	0x33
-#define AXP803_DCDC6_1120mV_STEPS	14
+#define AXP803_DCDC6_1120mV_STEPS	20
 #define AXP803_DCDC6_1120mV_END		\
 	(AXP803_DCDC6_1120mV_START + AXP803_DCDC6_1120mV_STEPS)
 #define AXP803_DCDC6_NUM_VOLTAGES	72
-- 
2.20.1