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From: Krzysztof Kozlowski <krzk@kernel.org>
To: Sangbeom Kim <sbkim73@samsung.com>,
	Krzysztof Kozlowski <krzk@kernel.org>,
	Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>,
	Liam Girdwood <lgirdwood@gmail.com>,
	Mark Brown <broonie@kernel.org>, Lee Jones <lee.jones@linaro.org>,
	linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org
Cc: stable@vger.kernel.org
Subject: [PATCH 1/2] regulator: s2mps11: Fix buck7 and buck8 wrong voltages
Date: Sat, 29 Jun 2019 13:44:45 +0200	[thread overview]
Message-ID: <20190629114446.11381-1-krzk@kernel.org> (raw)

On S2MPS11 device, the buck7 and buck8 regulator voltages start at 750
mV, not 600 mV.  Using wrong minimal value caused shifting of these
regulator values by 150 mV (e.g. buck7 usually configured to v1.35 V was
reported as 1.2 V).

On most of the boards these regulators are left in default state so this
was only affecting reported voltage.  However if any driver wanted to
change them, then effectively it would set voltage 150 mV higher than
intended.

Cc: <stable@vger.kernel.org>
Fixes: cb74685ecb39 ("regulator: s2mps11: Add samsung s2mps11 regulator driver")
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
---
 drivers/regulator/s2mps11.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index a215cfe20555..8f3c8730dc0d 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -479,8 +479,8 @@ static const struct regulator_desc s2mps11_regulators[] = {
 	regulator_desc_s2mps11_buck1_4(4),
 	regulator_desc_s2mps11_buck5,
 	regulator_desc_s2mps11_buck67810(6, MIN_600_MV, STEP_6_25_MV),
-	regulator_desc_s2mps11_buck67810(7, MIN_600_MV, STEP_12_5_MV),
-	regulator_desc_s2mps11_buck67810(8, MIN_600_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(7, MIN_750_MV, STEP_12_5_MV),
+	regulator_desc_s2mps11_buck67810(8, MIN_750_MV, STEP_12_5_MV),
 	regulator_desc_s2mps11_buck9,
 	regulator_desc_s2mps11_buck67810(10, MIN_750_MV, STEP_12_5_MV),
 };
-- 
2.17.1


             reply	other threads:[~2019-06-29 11:44 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-29 11:44 Krzysztof Kozlowski [this message]
2019-06-29 11:44 ` [PATCH 2/2] regulator: s2mps11: Adjust supported buck voltages to real values Krzysztof Kozlowski
2019-07-02 13:04   ` Applied "regulator: s2mps11: Adjust supported buck voltages to real values" to the regulator tree Mark Brown
2019-07-02 13:04 ` Applied "regulator: s2mps11: Fix buck7 and buck8 wrong voltages" " Mark Brown

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