Esempio n. 1
0
static int s3c24xx_i2s_probe(struct snd_soc_dai *dai)
{
    pr_debug("Entered %s\n", __func__);

    samsung_asoc_init_dma_data(dai, &s3c24xx_i2s_pcm_stereo_out,
                               &s3c24xx_i2s_pcm_stereo_in);

    s3c24xx_i2s.iis_clk = devm_clk_get(dai->dev, "iis");
    if (IS_ERR(s3c24xx_i2s.iis_clk)) {
        pr_err("failed to get iis_clock\n");
        return PTR_ERR(s3c24xx_i2s.iis_clk);
    }
    clk_prepare_enable(s3c24xx_i2s.iis_clk);

    /* Configure the I2S pins (GPE0...GPE4) in correct mode */
    s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
                          S3C_GPIO_PULL_NONE);

    writel(S3C2410_IISCON_IISEN, s3c24xx_i2s.regs + S3C2410_IISCON);

    s3c24xx_snd_txctrl(0);
    s3c24xx_snd_rxctrl(0);

    return 0;
}
Esempio n. 2
0
static int s3c2412_i2s_probe(struct snd_soc_dai *dai)
{
	int ret;

	pr_debug("Entered %s\n", __func__);

	samsung_asoc_init_dma_data(dai, &s3c2412_i2s_pcm_stereo_out,
		&s3c2412_i2s_pcm_stereo_in);

	ret = s3c_i2sv2_probe(dai, &s3c2412_i2s, S3C2410_PA_IIS);
	if (ret)
		return ret;

	s3c2412_i2s.dma_capture = &s3c2412_i2s_pcm_stereo_in;
	s3c2412_i2s.dma_playback = &s3c2412_i2s_pcm_stereo_out;

	s3c2412_i2s.iis_cclk = devm_clk_get(dai->dev, "i2sclk");
	if (IS_ERR(s3c2412_i2s.iis_cclk)) {
		pr_err("failed to get i2sclk clock\n");
		return PTR_ERR(s3c2412_i2s.iis_cclk);
	}

	/* Set MPLL as the source for IIS CLK */

	clk_set_parent(s3c2412_i2s.iis_cclk, clk_get(NULL, "mpll"));
	clk_prepare_enable(s3c2412_i2s.iis_cclk);

	s3c2412_i2s.iis_cclk = s3c2412_i2s.iis_pclk;

	/* Configure the I2S pins (GPE0...GPE4) in correct mode */
	s3c_gpio_cfgall_range(S3C2410_GPE(0), 5, S3C_GPIO_SFN(2),
			      S3C_GPIO_PULL_NONE);

	return 0;
}