From: Axel Lin <axel.lin@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Graeme Gregory <gg@slimlogic.co.uk>,
Mark Brown <broonie@opensource.wolfsonmicro.com>,
Liam Girdwood <lrg@ti.com>
Subject: [PATCH RFC/RFT] regulator: palmas: Clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits in palmas_set_mode_smps
Date: Thu, 07 Jun 2012 17:08:21 +0800 [thread overview]
Message-ID: <1339060101.5274.5.camel@phoenix> (raw)
Current code actually clears more bits than PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
---
Hi Graeme,
I'm wandering if we need to clear the status bits.
Current code actually clears bit[7:4] and bit[1:0] and set bit[7:6] to bit[3:2].
Looks like we only need to clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bit[1:0] bits here.
and this change makes the intent more clear.
I don't have this hardware,
I'd appreciate if you can test this patch if you think this change ok.
Regards,
Axel
drivers/regulator/palmas-regulator.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 92f475c..ae0951a 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -257,8 +257,7 @@ static int palmas_set_mode_smps(struct regulator_dev *dev, unsigned int mode)
unsigned int reg;
palmas_smps_read(pmic->palmas, palmas_regs_info[id].ctrl_addr, ®);
- reg &= ~PALMAS_SMPS12_CTRL_STATUS_MASK;
- reg >>= PALMAS_SMPS12_CTRL_STATUS_SHIFT;
+ reg &= ~PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK;
switch (mode) {
case REGULATOR_MODE_NORMAL:
--
1.7.9.5
next reply other threads:[~2012-06-07 9:08 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-07 9:08 Axel Lin [this message]
2012-06-07 10:58 ` [PATCH RFC/RFT] regulator: palmas: Clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits in palmas_set_mode_smps Graeme Gregory
2012-06-07 23:29 ` Mark Brown
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