From: MyungJoo Ham <myungjoo.ham@samsung.com>
To: Dan Carpenter <dan.carpenter@oracle.com>,
"lgirdwood@gmail.com" <lgirdwood@gmail.com>,
"broonie@kernel.org" <broonie@kernel.org>,
Chanwoo Choi <cw00.choi@samsung.com>,
"krzk@kernel.org" <krzk@kernel.org>,
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: "kernel-janitors@vger.kernel.org"
<kernel-janitors@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] regulator: max8997/8966: fix charger cv voltage set bug
Date: Mon, 08 May 2017 05:45:44 +0000 [thread overview]
Message-ID: <20170508054544epcms1p6d3d429e6f062e987adf72fc2c04ed159@epcms1p6> (raw)
In-Reply-To: <20170428141103.llm5t44o2vf46y5c@mwanda>
When min charger-CV is <= 4.0V and max charger-CV is >= 4.0V,
we can use 4.00V as CV (register value = 0x1).`
The original code had a typo that wrote ">=" (max_uV >= 4000000),
which should've been "<", which is not necessary anyway
as mentioned by Dan Carpenter.
Reported-By: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: MyungJoo Ham <myungjoo.ham@samsung.com>
---
drivers/regulator/max8997-regulator.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
diff --git a/drivers/regulator/max8997-regulator.c b/drivers/regulator/max8997-regulator.c
index efabc0e..559b9ac 100644
--- a/drivers/regulator/max8997-regulator.c
+++ b/drivers/regulator/max8997-regulator.c
@@ -428,12 +428,9 @@ static int max8997_set_voltage_charger_cv(struct regulator_dev *rdev,
if (max_uV < 4000000 || min_uV > 4350000)
return -EINVAL;
- if (min_uV <= 4000000) {
- if (max_uV >= 4000000)
- return -EINVAL;
- else
- val = 0x1;
- } else if (min_uV <= 4200000 && max_uV >= 4200000)
+ if (min_uV <= 4000000)
+ val = 0x1;
+ else if (min_uV <= 4200000 && max_uV >= 4200000)
val = 0x0;
else {
lb = (min_uV - 4000001) / 20000 + 2;
--
1.9.1
next parent reply other threads:[~2017-05-08 5:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20170428141103.llm5t44o2vf46y5c@mwanda>
[not found] ` <CGME20170428141118epcas2p42c864cf574cc6fa3ffedbef22029e3ef@epcms1p6>
2017-05-08 5:45 ` MyungJoo Ham [this message]
2017-05-08 9:14 ` Bartlomiej Zolnierkiewicz
2017-05-09 23:33 ` Chanwoo Choi
2017-05-15 8:04 ` Applied "regulator: max8997/8966: fix charger cv voltage set bug" to the regulator tree Mark Brown
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