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iio: accel: bcm150: Remove handling for regmap raw_read_max

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The regmap core now handles splitting up transactions according to
max_raw_read, so this code is no longer required in client drivers.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Charles Keepax 2018-04-24 16:05:51 +01:00 committed by Jonathan Cameron
parent 880b2d6cfd
commit 5cb0789de1
1 changed files with 3 additions and 20 deletions
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23
drivers/iio/accel/bmc150-accel-core.c
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@ -837,29 +837,12 @@ static int bmc150_accel_fifo_transfer(struct bmc150_accel_data *data,
int sample_length = 3 * 2; int sample_length = 3 * 2;
int ret; int ret;
int total_length = samples * sample_length; int total_length = samples * sample_length;
int i;
size_t step = regmap_get_raw_read_max(data->regmap);
if (!step || step > total_length)
step = total_length;
else if (step < total_length)
step = sample_length;
/*
* Seems we have a bus with size limitation so we have to execute
* multiple reads
*/
for (i = 0; i < total_length; i += step) {
ret = regmap_raw_read(data->regmap, BMC150_ACCEL_REG_FIFO_DATA,
&buffer[i], step);
if (ret)
break;
}
ret = regmap_raw_read(data->regmap, BMC150_ACCEL_REG_FIFO_DATA,
buffer, total_length);
if (ret) if (ret)
dev_err(dev, dev_err(dev,
"Error transferring data from fifo in single steps of %zu\n", "Error transferring data from fifo: %d\n", ret);
step);
return ret; return ret;
} }