ASoC: adau1701: fix adau1701_reg_read()

Fix a long standing bug in the read register routing of adau1701.
The bytes arrive in the buffer in big-endian, so the result has to be
shifted before and-ing the bytes in the loop.

Signed-off-by: Daniel Mack <zonque@gmail.com>
Acked-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Mark Brown <broonie@linaro.org>
Cc: stable@vger.kernel.org

diff --git a/sound/soc/codecs/adau1701.c b/sound/soc/codecs/adau1701.c
index d71c59cf7bdd5210ac20ee2c3d76d8d7578385da..370b742117efd1aa2e8a785e2ae1011ddf4d7e88 100644 (file)
--- a/sound/soc/codecs/adau1701.c
+++ b/sound/soc/codecs/adau1701.c
@@ -230,8 +230,10 @@ static int adau1701_reg_read(void *context, unsigned int reg,
 
        *value = 0;
 
-       for (i = 0; i < size; i++)
-               *value |= recv_buf[i] << (i * 8);
+       for (i = 0; i < size; i++) {
+               *value <<= 8;
+               *value |= recv_buf[i];
+       }
 
        return 0;
 }