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Commit 72e3a524 authored by Nishad Kamdar's avatar Nishad Kamdar Committed by Jonathan Cameron
Browse files

staging: iio: ad7816: Set RD/WR pin and CONVST pin as outputs. 



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: default avatarNishad Kamdar <nishadkamdar@gmail.com>
Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 06c77f56

drivers/staging/iio/adc/ad7816.c

+3 −2
Original line number Original line Diff line number Diff line
@@ -369,14 +369,15 @@ static int ad7816_probe(struct spi_device *spi_dev) 
		chip->oti_data[i] = 203;

		chip->oti_data[i] = 203;





	chip->id = spi_get_device_id(spi_dev)->driver_data;

	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)) {

	if (IS_ERR(chip->rdwr_pin)) {

		ret = PTR_ERR(chip->rdwr_pin);

		ret = PTR_ERR(chip->rdwr_pin);

		dev_err(&spi_dev->dev, "Failed to request rdwr GPIO: %d\n",

		dev_err(&spi_dev->dev, "Failed to request rdwr GPIO: %d\n",

			ret);

			ret);

		return 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)) {

	if (IS_ERR(chip->convert_pin)) {

		ret = PTR_ERR(chip->convert_pin);

		ret = PTR_ERR(chip->convert_pin);

		dev_err(&spi_dev->dev, "Failed to request convert GPIO: %d\n",

		dev_err(&spi_dev->dev, "Failed to request convert GPIO: %d\n",