as3514/as3543 fixes

- Enable end of charge monitoring once, it doesn't need to be disabled
- Acknowledge the first (wrong) end of charge interrupt on charger enable
  (this had been broken in r25299)
- Centralize reads to ENRD* registers and cache the results when needed
    - on PP it is not needed because reads are atomic, we only check for
      end of charge when the charging, and for charger presence when
      discharging

as3525v2 (using as3543) specifics
- I got the datasheet today from AMS, thanks to them for being so fast
  and not require me to sign tons of papers!
- USB detection now works on as3525v2 using the as3543. Clip+ won't
  reboot to OF yet, it needs mkamsboot support first (usbstack disabled)
- Charging should work, the CHARGER register is at a different place, it
  is an extended PMU register -> use ascodec_read/write_charger() to
  access it
- real interrupts are not used yet for ENRD, we get thousands of
  interrupts per second, apparently only limited by the i2c clock.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@26116 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 1 insertions, 1 deletions

diff --git a/firmware/target/arm/as3525/power-as3525.c b/firmware/target/arm/as3525/power-as3525.c
index 3570d7c75a..7b93dd1cd1 100644
--- a/firmware/target/arm/as3525/power-as3525.c
+++ b/firmware/target/arm/as3525/power-as3525.c
@@ -41,7 +41,7 @@ void power_init(void)
 #if CONFIG_CHARGING
 unsigned int power_input_status(void)
 {
-    return (ascodec_read(AS3514_IRQ_ENRD0) & (1<<5)) ?
+    return ascodec_chg_status() ?
         POWER_INPUT_MAIN_CHARGER : POWER_INPUT_NONE;
 
     /* TODO: Handle USB and other sources properly */