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I bought tlv320aic3254EVM-K directly from TI e-store more than one year ago.

Who would I contact to get the driver?

Hi,

I had to change some functions a little bit to support the linux kernel I'm working with (2.6.37).

Now I'm testing the system (IGEPv2 board + TLV320AIC3254-EVM-K).

MCLK is derived directly from Omap sys_clkout2 @ 12MHz,

AVDD, DVDD and IOVDD is powerd @ 1.8v, LDO low,

I need a differential stereo mic configuration: IN1_L and IN1_R to Right ADC,  IN2_L and IN2_R to Left ADC.

I've modified also the aic32x4_reg_init struct:

static const struct aic32x4_configs aic32x4_reg_init[] = {
	/* Carry out the software reset */
	{RESET, 0x01},
	{POW_CFG, 0x08},
	{LDO_CTL, 0x01},
	{CLK_REG_1, PLLCLK_2_CODEC_CLKIN},
	{AIS_REG_3, 0x03},
	{DAC_CHN_REG,
	 LDAC_2_LCHN | RDAC_2_RCHN | SOFT_STEP_2WCLK},
	{HPHONE_STARTUP_CTRL, 0x35},
	{HPL_ROUTE_CTRL, LDAC_CHNL_2_HPL},
	{HPR_ROUTE_CTRL, RDAC_CHNL_2_HPR},
	{LOL_ROUTE_CTRL, LDAC_CHNL_2_HPL},
	{LOR_ROUTE_CTRL, RDAC_CHNL_2_HPR},
	{HPL_GAIN, 0x0},
	{HPR_GAIN, 0x0},
	{LOL_GAIN, 0x0},
	{LOR_GAIN, 0x0},
	{DAC_MUTE_CTRL_REG, 0x00},
	{LMICPGA_PIN_CFG, 0x10},
	{LMICPGA_NIN_CFG, 0x10},
	{RMICPGA_PIN_CFG, 0x40},
	{RMICPGA_NIN_CFG, 0x10},
	{MICBIAS_CTRL, 0x40},
	{LMICPGA_VOL_CTRL, 0x28},
	{RMICPGA_VOL_CTRL, 0x28},
	{ADC_CHN_REG, 0xC0},
	{ADC_FGA, 0x00},
};

The problem is that when I start arecord command, BCLK an WCLK clocks at the right frequency but file derived seems mute.
Can you help me to see what is wrong in my configuration?
Thank you

I have the same need for the driver. I am using the DM816x eval board and the AIC3254 eval board. Can you email me the driver too?

By the way, what is driver not publicly available?

Hi, Tiebing,

You can request a driver by emailing codecdrivers-sw@list.ti.com

Please include information about your set-up - what OS and version, as well as your company and your project.

-d2

Hi,

I am using AM3354 customized board. We have used TLV320AIC3254 Audio Codec. I am using the kernel from TI web site (linux-3.2-calixto-am335x-evm.tar.gz). Can you please provide me the driver for this audio codec?