audio2 107 drivers/clk/tegra/clk-tegra-audio.c AUDIO(audio2, AUDIO_SYNC_CLK_I2S2), audio2 122 drivers/clk/tegra/clk-tegra-audio.c AUDIO2X(audio2, 115, 26), audio2 273 drivers/clk/tegra/clk-tegra-periph.c MUX_I2S_SPDIF(audio2)