---

#define SGTL5000_I2S_DLEN_MASK			0x0030
#define SGTL5000_I2S_DLEN_SHIFT			4
#define SGTL5000_I2S_DLEN_WIDTH			2
#define SGTL5000_I2S_DLEN_32			0x0
#define SGTL5000_I2S_DLEN_24			0x1
#define SGTL5000_I2S_DLEN_20			0x2
#define SGTL5000_I2S_DLEN_16			0x3
#define SGTL5000_I2S_SCLKFREQ_MASK		0x0100
#define SGTL5000_I2S_SCLKFREQ_SHIFT		8
#define SGTL5000_I2S_SCLKFREQ_WIDTH		1
#define SGTL5000_I2S_SCLKFREQ_64FS		0x0
#define SGTL5000_I2S_SCLKFREQ_32FS		0x1	/* Not for RJ mode */
	
/* set i2s data format */
	switch (params_width(params)) {
	case 16:
		if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J)
			return -EINVAL;
		i2s_ctl |= SGTL5000_I2S_DLEN_16 << SGTL5000_I2S_DLEN_SHIFT;
		i2s_ctl |= SGTL5000_I2S_SCLKFREQ_32FS <<
		    SGTL5000_I2S_SCLKFREQ_SHIFT;
		break;
	case 20:
		i2s_ctl |= SGTL5000_I2S_DLEN_20 << SGTL5000_I2S_DLEN_SHIFT;
		i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS <<
		    SGTL5000_I2S_SCLKFREQ_SHIFT;
		break;
	case 24:
		i2s_ctl |= SGTL5000_I2S_DLEN_24 << SGTL5000_I2S_DLEN_SHIFT;
		i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS <<
		    SGTL5000_I2S_SCLKFREQ_SHIFT;
		break;
	case 32:
		if (sgtl5000->fmt == SND_SOC_DAIFMT_RIGHT_J)
			return -EINVAL;
		i2s_ctl |= SGTL5000_I2S_DLEN_32 << SGTL5000_I2S_DLEN_SHIFT;
		i2s_ctl |= SGTL5000_I2S_SCLKFREQ_64FS <<
		    SGTL5000_I2S_SCLKFREQ_SHIFT;
		break;
	default:
		return -EINVAL;
	}

	snd_soc_component_update_bits(component, SGTL5000_CHIP_I2S_CTRL,
			    SGTL5000_I2S_DLEN_MASK | SGTL5000_I2S_SCLKFREQ_MASK,
			    i2s_ctl);
Вот кусок кода с драйвера linux, его надо правильно портировать в configure