Messages in this thread Patch in this message | | | Date | Fri, 9 Nov 2018 13:07:18 +0530 | From | Nishad Kamdar <> | Subject | [PATCH v3 3/4] staging: iio: ad7816: Set RD/WR pin and CONVST pin as outputs. |
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The RD/WR pin and CONVST pin are logical inputs to the AD78xx chip as per the datasheet. Hence convert them to outputs.
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com> --- drivers/staging/iio/adc/ad7816.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c index 3cda5cd09365..a2fead85cd46 100644 --- a/drivers/staging/iio/adc/ad7816.c +++ b/drivers/staging/iio/adc/ad7816.c @@ -369,14 +369,15 @@ static int ad7816_probe(struct spi_device *spi_dev) chip->oti_data[i] = 203; chip->id = spi_get_device_id(spi_dev)->driver_data; - chip->rdwr_pin = devm_gpiod_get(&spi_dev->dev, "rdwr", GPIOD_IN); + chip->rdwr_pin = devm_gpiod_get(&spi_dev->dev, "rdwr", GPIOD_OUT_HIGH); if (IS_ERR(chip->rdwr_pin)) { ret = PTR_ERR(chip->rdwr_pin); dev_err(&spi_dev->dev, "Failed to request rdwr GPIO: %d\n", ret); return ret; } - chip->convert_pin = devm_gpiod_get(&spi_dev->dev, "convert", GPIOD_IN); + chip->convert_pin = devm_gpiod_get(&spi_dev->dev, "convert", + GPIOD_OUT_HIGH); if (IS_ERR(chip->convert_pin)) { ret = PTR_ERR(chip->convert_pin); dev_err(&spi_dev->dev, "Failed to request convert GPIO: %d\n", -- 2.17.1
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