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iio: dht11: whitespace changes to make checkpatch.pl --strict happy

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* add spaces around binary operators in cases where it reduces readability
* align multiline statements around opening parenthesis

Reported-by: Hartmut Knaack <knaack.h@gmx.de>
	in Message-ID: <55919E72.3010807@gmx.de>

Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Harald Geyer 2015-07-07 13:39:28 +00:00 committed by Jonathan Cameron
parent 5e9972cd6f
commit 889c5e9b66
1 changed files with 13 additions and 12 deletions
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25
drivers/iio/humidity/dht11.c
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@ -46,7 +46,8 @@
* Note that when reading the sensor actually 84 edges are detected, but
* since the last edge is not significant, we only store 83:
*/
#define DHT11_EDGES_PER_READ (2*DHT11_BITS_PER_READ + DHT11_EDGES_PREAMBLE + 1)
#define DHT11_EDGES_PER_READ (2 * DHT11_BITS_PER_READ + \
DHT11_EDGES_PREAMBLE + 1)
/* Data transmission timing (nano seconds) */
#define DHT11_START_TRANSMISSION 18 /* ms */
@ -95,24 +96,24 @@ static int dht11_decode(struct dht11 *dht11, int offset)
/* Calculate timestamp resolution */
for (i = 1; i < dht11->num_edges; ++i) {
t = dht11->edges[i].ts - dht11->edges[i-1].ts;
t = dht11->edges[i].ts - dht11->edges[i - 1].ts;
if (t > 0 && t < timeres)
timeres = t;
}
if (2*timeres > DHT11_DATA_BIT_HIGH) {
if (2 * timeres > DHT11_DATA_BIT_HIGH) {
pr_err("dht11: timeresolution %d too bad for decoding\n",
timeres);
timeres);
return -EIO;
}
threshold = DHT11_DATA_BIT_HIGH / timeres;
if (DHT11_DATA_BIT_LOW/timeres + 1 >= threshold)
if (DHT11_DATA_BIT_LOW / timeres + 1 >= threshold)
pr_err("dht11: WARNING: decoding ambiguous\n");
/* scale down with timeres and check validity */
for (i = 0; i < DHT11_BITS_PER_READ; ++i) {
t = dht11->edges[offset + 2*i + 2].ts -
dht11->edges[offset + 2*i + 1].ts;
if (!dht11->edges[offset + 2*i + 1].value)
t = dht11->edges[offset + 2 * i + 2].ts -
dht11->edges[offset + 2 * i + 1].ts;
if (!dht11->edges[offset + 2 * i + 1].value)
return -EIO; /* lost synchronisation */
timing[i] = t / timeres;
}
@ -166,7 +167,7 @@ static irqreturn_t dht11_handle_irq(int irq, void *data)
}
static int dht11_read_raw(struct iio_dev *iio_dev,
const struct iio_chan_spec *chan,
const struct iio_chan_spec *chan,
int *val, int *val2, long m)
{
struct dht11 *dht11 = iio_priv(iio_dev);
@ -192,13 +193,13 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
goto err;
ret = wait_for_completion_killable_timeout(&dht11->completion,
HZ);
HZ);
free_irq(dht11->irq, iio_dev);
if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) {
dev_err(&iio_dev->dev,
"Only %d signal edges detected\n",
"Only %d signal edges detected\n",
dht11->num_edges);
ret = -ETIMEDOUT;
}
@ -206,7 +207,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
goto err;
ret = dht11_decode(dht11,
dht11->num_edges == DHT11_EDGES_PER_READ ?
dht11->num_edges == DHT11_EDGES_PER_READ ?
DHT11_EDGES_PREAMBLE :
DHT11_EDGES_PREAMBLE - 2);
if (ret)