Re: [alsa-devel] [PATCH] ASoC: tlv320aic23: add support for SPI control mode

On Thu, Mar 06, 2014 at 11:44:22AM +0400, Max Filippov wrote:

• select SND_SOC_TLV320AIC23 if I2C

• select SND_SOC_TLV320AIC23 if SND_SOC_I2C_AND_SPI

We're moving towards having drivers have separate bus drivers rather than in one file - take a look at how drivers like ad193x handle this.