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staging:iio:ad2s1210: Remove old_data from ad2s1210_state

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The variable old_data is a bool type, which only receives the value
'true' in the function ad2s1210_config_write and ad2s1210_config_read.
There is no other use for this variable. This patch removes old_data
from the ad2s1210_state and from all the function that use it.

Signed-off-by: Rodrigo Siqueira <rodrigosiqueiramelo@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Rodrigo Siqueira 2018-03-09 20:46:25 -03:00 • committed by Jonathan Cameron
commit 9aa5134ac4
1 changed files with 0 additions and 3 deletions
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3
drivers/staging/iio/resolver/ad2s1210.c
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@ -76,7 +76,6 @@ struct ad2s1210_state {
unsigned int fclkin;
unsigned int fexcit;
bool hysteresis;
bool old_data;
u8 resolution;
enum ad2s1210_mode mode;
u8 rx[2] ____cacheline_aligned;
@ -107,7 +106,6 @@ static int ad2s1210_config_write(struct ad2s1210_state *st, u8 data)
ret = spi_write(st->sdev, st->tx, 1);
if (ret < 0)
return ret;
st->old_data = true;
return 0;
}
@ -129,7 +127,6 @@ static int ad2s1210_config_read(struct ad2s1210_state *st,
ret = spi_sync_transfer(st->sdev, &xfer, 1);
if (ret < 0)
return ret;
st->old_data = true;
return st->rx[1];
}