diff options
| author | ScottPeterson <speterson@nvidia.com> | 2012-01-17 17:32:11 -0800 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2012-01-30 13:28:18 -0800 |
| commit | 2e3c724c167ec5da8b1ed5ab07cda55232ecdf13 (patch) | |
| tree | d82c4c6da45dd46de1aa0c75393869470fe033e3 /sound/soc/tegra/tegra30_i2s.c | |
| parent | 6814bf677b18c10cee192e813d3d468b01229a25 (diff) | |
asoc:tegra: Support I2S slave mode
Support I2S slave mode. Disable pll_p_out1 and
pll_a to reduce power when in slave mode.
Slave mode disabled by default.
Reviewed-on: http://git-master/r/76046
Change-Id: I873a11d54f1e037d99c86ff4cec06ee83064902a
Signed-off-by: ScottPeterson <speterson@nvidia.com>
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>
Reviewed-on: http://git-master/r/77765
Reviewed-by: Automatic_Commit_Validation_User
Diffstat (limited to 'sound/soc/tegra/tegra30_i2s.c')
| -rw-r--r-- | sound/soc/tegra/tegra30_i2s.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/sound/soc/tegra/tegra30_i2s.c b/sound/soc/tegra/tegra30_i2s.c index c1de635765a5..9a0ed5a762ed 100644 --- a/sound/soc/tegra/tegra30_i2s.c +++ b/sound/soc/tegra/tegra30_i2s.c @@ -303,13 +303,11 @@ static int tegra30_i2s_hw_params(struct snd_pcm_substream *substream, srate = params_rate(params); if (i2s->reg_ctrl & TEGRA30_I2S_CTRL_MASTER_ENABLE) { - /* Final "* 2" required by Tegra hardware */ - i2sclock = srate * params_channels(params) * sample_size * 2; + i2sclock = srate * params_channels(params) * sample_size; - /* Additional "* 2" is needed for FSYNC mode */ + /* Additional "* 4" is needed for FSYNC mode */ if (i2s->reg_ctrl & TEGRA30_I2S_CTRL_FRAME_FORMAT_FSYNC) - i2sclock *= 2; - + i2sclock *= 4; ret = clk_set_parent(i2s->clk_i2s, i2s->clk_pll_a_out0); if (ret) { dev_err(dev, "Can't set parent of I2S clock\n"); |