static int i2s_configure(struct tegra_i2s_info *info )
{
struct platform_device *pdev = info->pdev;
struct tegra_audio_platform_data *pdata = pdev->dev.platform_data;
unsigned int i2s_id = pdev->id;
unsigned int rate;
i2s_enable_fifos(i2s_id, 0);
i2s_fifo_clear(i2s_id, I2S_FIFO_TX);
i2s_fifo_clear(i2s_id, I2S_FIFO_RX);
i2s_set_left_right_control_polarity(i2s_id, 0); /* default */
rate = clk_get_rate(info->i2s_clk);
if (info->bit_format == TEGRA_AUDIO_BIT_FORMAT_DSP)
rate *= 2;
i2s_set_master(i2s_id, pdata->i2s_master);
info->i2s_master = pdata->i2s_master;
if (pdata->i2s_master && pdata->i2s_master_clk)
i2s_set_channel_bit_count(i2s_id, pdata->i2s_master_clk, rate);
i2s_set_fifo_mode(i2s_id, I2S_FIFO_TX, 1);
i2s_set_fifo_mode(i2s_id, I2S_FIFO_RX, 0);
i2s_set_bit_format(i2s_id, pdata->mode);
i2s_set_bit_size(i2s_id, pdata->bit_size);
i2s_set_fifo_format(i2s_id, pdata->fifo_fmt);
if (i2s_id == 0)
en_dmic = pdata->en_dmic;
return 0;
}
static int i2s_configure(struct tegra_i2s_info *info )
{
struct platform_device *pdev = info->pdev;
struct tegra_audio_platform_data *pdata = pdev->dev.platform_data;
struct clk *i2s_clk;
unsigned int i2s_id = pdev->id;
unsigned int rate;
i2s_enable_fifos(i2s_id, 0);
i2s_fifo_clear(i2s_id, I2S_FIFO_TX);
i2s_fifo_clear(i2s_id, I2S_FIFO_RX);
i2s_set_left_right_control_polarity(i2s_id, 0); /* default */
i2s_clk = clk_get(&pdev->dev, NULL);
if (!i2s_clk) {
dev_err(&pdev->dev, "%s: could not get i2s clock\n",
__func__);
return -EIO;
}
rate = clk_get_rate(i2s_clk);
if (info->bit_format == TEGRA_AUDIO_BIT_FORMAT_DSP)
rate *= 2;
if (pdata->i2s_master && pdata->i2s_master_clk)
i2s_set_channel_bit_count(i2s_id, pdata->i2s_master_clk, rate);
i2s_set_master(i2s_id, pdata->i2s_master);
i2s_set_fifo_mode(i2s_id, I2S_FIFO_TX, 1);
i2s_set_fifo_mode(i2s_id, I2S_FIFO_RX, 0);
i2s_set_bit_format(i2s_id, pdata->mode);
i2s_set_bit_size(i2s_id, pdata->bit_size);
i2s_set_fifo_format(i2s_id, pdata->fifo_fmt);
return 0;
}
