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Sansa AMSv2: set internal voltages PVDD1 and AVDD17 to the same value as the OF does.

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* improves audio quality and increases maximum volume
* reduces pop on power-down
* reduces runtime slightly (about 3%)

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30743 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Bertrik Sikken 2011-10-12 20:09:19 +00:00
parent bf056d5372
commit 936fd540c0
1 changed files with 0 additions and 2 deletions
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2
firmware/target/arm/as3525/system-as3525.c
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@ -281,12 +281,10 @@ void system_init(void)
ascodec_write_pmu(0x1A, 2, 0xCC);
/* CHGVBUS2: set VBUS threshold to 3.18V and EOC threshold to 30% CC */
ascodec_write_pmu(0x19, 2, 0x41);
#if 0 /* don't set higher voltage until impact on runtime has been checked */
/* PVDD1: set PVDD1 power supply to 2.5 V */
ascodec_write_pmu(0x18, 1, 0x35);
/* AVDD17: set AVDD17 power supply to 2.5V */
ascodec_write_pmu(0x18, 7, 0x31);
#endif
#else
ascodec_write(AS3514_CVDD_DCDC3, AS314_CP_DCDC3_SETTING);
#endif /* HAVE_AS3543 */