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| author | Axel Lin <axel.lin@gmail.com> | 2011-10-31 07:00:06 +0400 |
|---|---|---|
| committer | Samuel Ortiz <sameo@linux.intel.com> | 2011-12-20 21:50:55 +0400 |
| commit | 890c98e3746fa8705cc9c70979e64360cf2d8a31 (patch) | |
| tree | 456c4a8104035dbcac651b4183ee33e17aad2a1e /drivers/mfd/adp5520.c | |
| parent | 9ad33ba51a1ac29ba3cf90d95e4b7f7eba278f6c (diff) | |
| download | linux-890c98e3746fa8705cc9c70979e64360cf2d8a31.tar.xz | |
mfd: Set adp5520 bits if new value is different from the old one
Current code checks if all the bit_mask bits are all zero is wrong.
We need to write new value if the bit mask fields of new value is
not equal to old value.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Diffstat (limited to 'drivers/mfd/adp5520.c')
| -rw-r--r-- | drivers/mfd/adp5520.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mfd/adp5520.c b/drivers/mfd/adp5520.c index f1d88483112c..8d816cce8322 100644 --- a/drivers/mfd/adp5520.c +++ b/drivers/mfd/adp5520.c @@ -109,7 +109,7 @@ int adp5520_set_bits(struct device *dev, int reg, uint8_t bit_mask) ret = __adp5520_read(chip->client, reg, ®_val); - if (!ret && ((reg_val & bit_mask) == 0)) { + if (!ret && ((reg_val & bit_mask) != bit_mask)) { reg_val |= bit_mask; ret = __adp5520_write(chip->client, reg, reg_val); } |