Nexus5-mixer_paths

Definitions:

• ADC - analog to digital converter - analog gain
• RX# - digital gain
• DEC# - digital gain
• HPH - line gain

Description	Register	Name
cam_mic_gain	TAIKO_A_CDC_TX6_VOL_CTL_GAIN	DEC6 Volume
mic_gain	TAIKO_A_CDC_TX7_VOL_CTL_GAIN	DEC7 Volume
speaker_gain	TAIKO_A_CDC_RX7_VOL_CTL_B2_CTL	RX7 Digital Volume
headphone_gain	TAIKO_A_CDC_RX1_VOL_CTL_B2_CTL	RX1 Digital Volume
	TAIKO_A_CDC_RX2_VOL_CTL_B2_CTL	RX2 Digital Volume
headphone_pa_gain	TAIKO_A_RX_HPH_L_GAIN	HPHL Volume
	TAIKO_A_RX_HPH_R_GAIN	HPHR Volume

References:

• https://android.googlesource.com/kernel/msm/+/android-msm-hammerhead-3.4-marshmallow-mr2/sound/soc/codecs/wcd9320.c
• https://github.com/flar2/ElementalX-N5/blob/ae27e4b1c8166b03b98142ce0b0d559f58044019/sound/soc/codecs/sound_control_3_gpl.c