From: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
Signed-off-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>
---
drivers/staging/iio/adc/ad7291.c | 27 ++++++++++++++++-----------
1 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index 334951c..0811c5e 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -589,8 +589,10 @@ static int __devinit ad7291_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
chip->client = client;
- /* Tsense always enabled */
- chip->command = AD7291_NOISE_DELAY | AD7291_T_SENSE_MASK;
+
+ chip->command = AD7291_NOISE_DELAY |
+ AD7291_T_SENSE_MASK | /* Tsense always enabled */
+ AD7291_ALERT_POLARITY; /* set irq polarity low level */
if (voltage_uv) {
chip->int_vref_mv = voltage_uv / 1000;
@@ -607,6 +609,18 @@ static int __devinit ad7291_probe(struct i2c_client *client,
indio_dev->info = &ad7291_info;
indio_dev->modes = INDIO_DIRECT_MODE;
+ ret = ad7291_i2c_write(chip, AD7291_COMMAND, AD7291_RESET);
+ if (ret) {
+ ret = -EIO;
+ goto error_disable_reg;
+ }
+
+ ret = ad7291_i2c_write(chip, AD7291_COMMAND, chip->command);
+ if (ret) {
+ ret = -EIO;
+ goto error_disable_reg;
+ }
+
if (client->irq > 0) {
ret = request_threaded_irq(client->irq,
NULL,
@@ -616,15 +630,6 @@ static int __devinit ad7291_probe(struct i2c_client *client,
indio_dev);
if (ret)
goto error_disable_reg;
-
- /* set irq polarity low level */
- chip->command |= AD7291_ALERT_POLARITY;
- }
-
- ret = ad7291_i2c_write(chip, AD7291_COMMAND, chip->command);
- if (ret) {
- ret = -EIO;
- goto error_unreg_irq;
}
ret = iio_device_register(indio_dev);
--
1.7.0.4
--
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