Currently the driver uses pr_* and dev_* functions.
Change all logging functions to dev_* style to be consistent
and have the correct device prefix in all messages.
This change set also adds new messages to diagnose issues.
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
drivers/iio/humidity/dht11.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/iio/humidity/dht11.c b/drivers/iio/humidity/dht11.c
index 0023699..fbcd7cb 100644
--- a/drivers/iio/humidity/dht11.c
+++ b/drivers/iio/humidity/dht11.c
@@ -96,20 +96,22 @@ static int dht11_decode(struct dht11 *dht11, int offset)
timeres = t;
}
if (2*timeres > DHT11_DATA_BIT_HIGH) {
- pr_err("dht11: timeresolution %d too bad for decoding\n",
+ dev_err(dht11->dev, "timeresolution %d too bad for decoding\n",
timeres);
return -EIO;
}
threshold = DHT11_DATA_BIT_HIGH / timeres;
if (DHT11_DATA_BIT_LOW/timeres + 1 >= threshold)
- pr_err("dht11: WARNING: decoding ambiguous\n");
+ dev_err(dht11->dev, "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)
- return -EIO; /* lost synchronisation */
+ if (!dht11->edges[offset + 2*i + 1].value) {
+ dev_err(dht11->dev, "lost synchronisation\n");
+ return -EIO;
+ }
timing[i] = t / timeres;
}
@@ -119,8 +121,10 @@ static int dht11_decode(struct dht11 *dht11, int offset)
temp_dec = dht11_decode_byte(&timing[24], threshold);
checksum = dht11_decode_byte(&timing[32], threshold);
- if (((hum_int + hum_dec + temp_int + temp_dec) & 0xff) != checksum)
+ if (((hum_int + hum_dec + temp_int + temp_dec) & 0xff) != checksum) {
+ dev_err(dht11->dev, "invalid checksum\n");
return -EIO;
+ }
dht11->timestamp = iio_get_time_ns();
if (hum_int < 20) { /* DHT22 */
@@ -193,7 +197,7 @@ static int dht11_read_raw(struct iio_dev *iio_dev,
free_irq(dht11->irq, iio_dev);
if (ret == 0 && dht11->num_edges < DHT11_EDGES_PER_READ - 1) {
- dev_err(&iio_dev->dev,
+ dev_err(dht11->dev,
"Only %d signal edges detected\n",
dht11->num_edges);
ret = -ETIMEDOUT;
--
1.8.4.5
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