if SND_SOC config SND_SOC_TEGRA_VIRT_IVC_COMM_DEFS tristate "IVC client for Tegra virt audio" depends on TEGRA_HV_MANAGER help Say Y or M here if you want to add support for tegra virtual ivc communication for audio client. This ivc communication module is common for all virtualized tegra platforms. This is used by both pcm and control interfaces. This module uses hypervisor IVC APIs for communication with audio server. config SND_SOC_TEGRA210_ADSP_VIRT_ALT tristate "Tegra ADSP driver for virt" depends on SND_SOC_TEGRA_VIRT_T210REF_PCM && TEGRA_NVADSP config SND_SOC_TEGRA_VIRT_T210REF_PCM tristate "Tegra210 virt PCM driver" depends on TEGRA_HV_MANAGER depends on SND_SOC_TEGRA_ALT select SND_SOC_TEGRA_VIRT_IVC_COMM_DEFS select SND_SOC_TEGRA210_ADSP_VIRT_ALT if TEGRA_NVADSP help Say Y or M if you want to add support for Tegra210 para-virtualized PCM audio. The pcm driver exposes a number of playback and capture pcm interfaces. It uses the native pcm driver for dma interface and ivc communication module for ivc. The number of interfaces exposed is configurable via device tree. endif