ASoC: tegra: fix Tegra30 I2S capture parameter setup

The Tegra30 I2S driver was writing the AHUB interface parameters to the
playback path register rather than the capture path register. This
caused the capture parameters not to be configured at all, so if
capturing using non-HW-default parameters (e.g. 16-bit stereo rather
than 8-bit mono) the audio would be corrupted.

With this fixed, audio capture from an analog microphone works correctly
on the Cardhu board.

Cc: stable@vger.kernel.org
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Signed-off-by: Mark Brown <broonie@linaro.org>

diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c
index d04146cad61f4f2dd0227815d0f25970e22e4cae..47565fd045057344390592bb2a8d7a5374cc2209 100644 (file)
--- a/sound/soc/tegra/tegra30_i2s.c
+++ b/sound/soc/tegra/tegra30_i2s.c
@@ -228,7 +228,7 @@ static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream,
                reg = TEGRA30_I2S_CIF_RX_CTRL;
        } else {
                val |= TEGRA30_AUDIOCIF_CTRL_DIRECTION_TX;
-               reg = TEGRA30_I2S_CIF_RX_CTRL;
+               reg = TEGRA30_I2S_CIF_TX_CTRL;
        }
 
        regmap_write(i2s->regmap, reg, val);