diff options
| -rw-r--r-- | firmware/drivers/audio/as3514.c | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/firmware/drivers/audio/as3514.c b/firmware/drivers/audio/as3514.c index a3be9e9..c161cd6 100644 --- a/firmware/drivers/audio/as3514.c +++ b/firmware/drivers/audio/as3514.c @@ -173,18 +173,21 @@ void audiohw_preinit(void) /* 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%), taken from c200v2 OF + */ + as3514_write(AS3514_AUDIOSET2, AUDIOSET2_IBR_LSP_50 | AUDIOSET2_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 + /* TODO: check if AS3525 settings save power on e200v1 or as3525v2 */ /* Set HPCM off, ZCU on */ as3514_write(AS3514_AUDIOSET3, AUDIOSET3_HPCM_off); #endif |