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lp3971: Fix BUCK_VOL_CHANGE_SHIFT logic 

Given x=0,1,2, current implementation of BUCK_VOL_CHANGE_SHIFT(x) returns 0,4,8.
The correct return value should be 0,4,6.
This patch fix the logic.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
This commit is contained in:
Axel Lin 2010-03-11 09:50:07 +08:00 committed by Liam Girdwood
parent cdb868f581
commit 451a73cd46
1 changed files with 1 additions and 1 deletions
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2
drivers/regulator/lp3971.c
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@ -45,7 +45,7 @@ static int lp3971_set_bits(struct lp3971 *lp3971, u8 reg, u16 mask, u16 val);
LP3971_BUCK2 -> 4 LP3971_BUCK2 -> 4
LP3971_BUCK3 -> 6 LP3971_BUCK3 -> 6
*/ */
#define BUCK_VOL_CHANGE_SHIFT(x) (((1 << x) & ~0x01) << 1) #define BUCK_VOL_CHANGE_SHIFT(x) (((!!x) << 2) | (x & ~0x01))
#define BUCK_VOL_CHANGE_FLAG_GO 0x01 #define BUCK_VOL_CHANGE_FLAG_GO 0x01
#define BUCK_VOL_CHANGE_FLAG_TARGET 0x02 #define BUCK_VOL_CHANGE_FLAG_TARGET 0x02
#define BUCK_VOL_CHANGE_FLAG_MASK 0x03 #define BUCK_VOL_CHANGE_FLAG_MASK 0x03