Index: firmware/drivers/audio/as3514.c
===================================================================
--- firmware/drivers/audio/as3514.c (revision 25815)
+++ firmware/drivers/audio/as3514.c (working copy)
@@ -173,17 +173,19 @@
/* Turn on SUM, DAC */
as3514_write(AS3514_AUDIOSET1, AUDIOSET1_DAC_on | AUDIOSET1_SUM_on);
- /* Set BIAS on, DITH on, AGC on, IBR_DAC max, LSP_LP on, IBR_LSP min */
- as3514_write(AS3514_AUDIOSET2,
- AUDIOSET2_IBR_DAC_0 | AUDIOSET2_LSP_LP |
- AUDIOSET2_IBR_LSP_50);
+ /* Set BIAS on, DITH off, AGC off, IBR_DAC max reduction, LSP_LP on,
+ IBR_LSP max reduction (50%)
+ */
+ as3514_write(AS3514_AUDIOSET2, AUDIOSET2_IBR_LSP_50 | UDIOSET2_LSP_LP |
+ AUDIOSET2_IBR_DAC_50 | AUDIOSET2_AGC_off |AUDIOSET2_DITH_off );
/* AMS Sansas based on the AS3525 need HPCM enabled, otherwise they output the
L-R signal on both L and R headphone outputs instead of normal stereo.
Turning it off saves a little power on targets that don't need it. */
#if (CONFIG_CPU == AS3525)
- /* Set HPCM on, ZCU on */
- as3514_write(AS3514_AUDIOSET3, 0);
+ /* Set HPCM on, ZCU off, reduce bias current, settings taken from c200v2 OF
+ */
+ as3514_write(AS3514_AUDIOSET3, AUDIOSET3_IBR_HPH | AUDIOSET3_ZCU_off);
#else
/* Set HPCM off, ZCU on */
as3514_write(AS3514_AUDIOSET3, AUDIOSET3_HPCM_off);