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From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Sangbeom Kim <sbkim73@samsung.com>, Liam Girdwood <lrg@ti.com>,
	Mark Brown <broonie@opensource.wolfsonmicro.com>
Subject: [PATCH RESEND 1/4] regulator: Fix setting new voltage in s5m8767_set_voltage
Date: Mon, 19 Mar 2012 12:22:10 +0800	[thread overview]
Message-ID: <1332130930.26765.2.camel@phoenix> (raw)

Current code does not really update the register with new value, fix it.
I rename the variable i to sel for better readability.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
Hi Sangbeom,
I make the following patchs on top of this one, so I resend this one as the
first patch of this serial.
I'd appreciate to have your feedback about the changes in this patch serial.

Thanks,
Axel
 drivers/regulator/s5m8767.c |   14 +++++++-------
 1 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c
index 58447db..4ca2db0 100644
--- a/drivers/regulator/s5m8767.c
+++ b/drivers/regulator/s5m8767.c
@@ -311,8 +311,7 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev,
 	struct s5m8767_info *s5m8767 = rdev_get_drvdata(rdev);
 	const struct s5m_voltage_desc *desc;
 	int reg_id = rdev_get_id(rdev);
-	int reg, mask, ret;
-	int i;
+	int sel, reg, mask, ret;
 	u8 val;
 
 	switch (reg_id) {
@@ -333,19 +332,20 @@ static int s5m8767_set_voltage(struct regulator_dev *rdev,
 
 	desc = reg_voltage_map[reg_id];
 
-	i = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
-	if (i < 0)
-		return i;
+	sel = s5m8767_convert_voltage_to_sel(desc, min_uV, max_uV);
+	if (sel < 0)
+		return sel;
 
 	ret = s5m8767_get_voltage_register(rdev, &reg);
 	if (ret)
 		return ret;
 
 	s5m_reg_read(s5m8767->iodev, reg, &val);
-	val = val & mask;
+	val &= ~mask;
+	val |= sel;
 
 	ret = s5m_reg_write(s5m8767->iodev, reg, val);
-	*selector = i;
+	*selector = sel;
 
 	return ret;
 }
-- 
1.7.5.4




             reply	other threads:[~2012-03-19  4:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-19  4:22 Axel Lin [this message]
2012-03-19  4:23 ` [PATCH RFC 2/4] regulator: Rework s5m8767_set_voltage to support both LDOs and BUCKs Axel Lin
2012-04-02 23:16   ` Sangbeom Kim
2012-04-03  0:00     ` Axel Lin
2012-04-03  5:40   ` Sangbeom Kim
2012-03-19  4:24 ` [PATCH RFC 3/4] regulator: Use one s5m8767_ops for " Axel Lin
2012-04-03  5:42   ` Sangbeom Kim
2012-03-19  4:25 ` [PATCH RFC 4/4] regulator: Replace regulator_desc_[ldo|buck] by s5m8767_regulator_desc macro Axel Lin
2012-04-03  5:54   ` Sangbeom Kim
2012-03-29 12:41 ` [PATCH RESEND 1/4] regulator: Fix setting new voltage in s5m8767_set_voltage Axel Lin
2012-03-30  5:56 ` Sangbeom Kim
2012-03-31 10:33 ` Mark Brown

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