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iio: accel: kxcjk-1013: Fix kxcjk10013_set_range 

Currently, we get the new GSEL bits by OR-ing the old values
with the new ones. This only works first time when the old
values are 0.

Startup:
	* GSEL0 = 0, GSEL1 = 0

Set range to 4G: (GSEL0 = 1, GSEL1 = 0)
	* GSEL0 = 0 | 1 = 1
	* GSEL1 = 0 | 0 = 0
	* correct

Change range to 2G: (GSEL0 = 0, GSEL1 = 0)
	* GSEL0 = 1 | 0 = 1
	* GSEL1 = 0 | 0 = 0
	* wrong, GSEL0 should be 0

This has the nice effect that we can use the full scale range,
exported in in_accel_scale_available.

Fixes: a735e3d7f0 (iio: accel: kxcjk-1013: Set adjustable range)
Signed-off-by: Daniel Baluta <daniel.baluta@intel.com>
Reviewed-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Daniel Baluta 2014-11-10 10:20:16 +02:00 committed by Jonathan Cameron
parent ccf54555da
commit e90dea6aaf
1 changed files with 2 additions and 0 deletions
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2
drivers/iio/accel/kxcjk-1013.c
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@ -269,6 +269,8 @@ static int kxcjk1013_set_range(struct kxcjk1013_data *data, int range_index)
return ret;
}
ret &= ~(KXCJK1013_REG_CTRL1_BIT_GSEL0 |
KXCJK1013_REG_CTRL1_BIT_GSEL1);
ret |= (KXCJK1013_scale_table[range_index].gsel_0 << 3);
ret |= (KXCJK1013_scale_table[range_index].gsel_1 << 4);