iio: adc: ti-ads8344: properly byte swap value

[linux-2.6-microblaze.git] / drivers / iio / adc / ti-ads8344.c

diff --git a/drivers/iio/adc/ti-ads8344.c b/drivers/iio/adc/ti-ads8344.c
index 9a46080..abe4b56 100644 (file)
--- a/drivers/iio/adc/ti-ads8344.c
+++ b/drivers/iio/adc/ti-ads8344.c
@@ -29,7 +29,7 @@ struct ads8344 {
        struct mutex lock;
 
        u8 tx_buf ____cacheline_aligned;
-       u16 rx_buf;
+       u8 rx_buf[3];
 };
 
 #define ADS8344_VOLTAGE_CHANNEL(chan, si)                              \
@@ -89,11 +89,11 @@ static int ads8344_adc_conversion(struct ads8344 *adc, int channel,
 
        udelay(9);
 
-       ret = spi_read(spi, &adc->rx_buf, 2);
+       ret = spi_read(spi, adc->rx_buf, sizeof(adc->rx_buf));
        if (ret)
                return ret;
 
-       return adc->rx_buf;
+       return adc->rx_buf[0] << 9 | adc->rx_buf[1] << 1 | adc->rx_buf[2] >> 7;
 }
 
 static int ads8344_read_raw(struct iio_dev *iio,