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* [PATCH RFC/RFT] regulator: palmas: Clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits in palmas_set_mode_smps
@ 2012-06-07  9:08 Axel Lin
  2012-06-07 10:58 ` Graeme Gregory
  2012-06-07 23:29 ` Mark Brown
  0 siblings, 2 replies; 3+ messages in thread
From: Axel Lin @ 2012-06-07  9:08 UTC (permalink / raw)
  To: linux-kernel; +Cc: Graeme Gregory, Mark Brown, Liam Girdwood

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);
-	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




^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2012-06-08  0:54 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
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2012-06-07  9:08 [PATCH RFC/RFT] regulator: palmas: Clear PALMAS_SMPS12_CTRL_MODE_ACTIVE_MASK bits in palmas_set_mode_smps Axel Lin
2012-06-07 10:58 ` Graeme Gregory
2012-06-07 23:29 ` Mark Brown

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