[Gta04-owner] More kernel news...

[NeilBrown]

I've been playing with the kernel on the GTA04 too, doing different things to
Nikolaus.

I've just pushed out an update to my 3.7 kernel. e.g.
  git://git.neil.brown.name/gta04 3.7-gta04

Of interest:
  - I removed some power saving measures that made the USB link to the GSM
    modem unreliable.  I now have problems only rarely.

  - I've implemented hardware-routing for voicecalls.  This code is quite
    different from that by Andreas Kemnade, though having that as a starting
    point was quite helpful.
    My code is less of a hack an integrates with the DAPM (dynamic audio
    power management) so everything turns off and on as expected.
    I did add a new control, but it is different to the one Andreas added.

  - I've added a 'min_battery_mvolts' file to
        /sys/class/power-supply/twl4030_usb
    so you can tune the point at which the battery starts charging again.
    Setting this to 4100 means that the battery never goes below 90% while
    plugged in.

  - I've moved 'max_current' into
         /sys/class/power_supply/twl4030_usb
    and also
         /sys/class/power_supply/twl4030_ac
    which makes it easier to find, and means that the current to expect from
    the 'ac' port and the usb can be tuned independently.

  - 'max_current' can now be set has high as 1.7A so you might be able to use
    more of the current that a 2A charger provides.

  - I've added a 'mode' file to both those directories.  It can be
     'off' - that apply will not be used, even if available
     'auto' - will be used if available and battery needs charging
     'continuous' - will be used no matter what voltage is available, or 
           what the status of the battery is.
           This is the same as the 'linear' functionality provided by Andreas.

  - The 1GHz operating power point  is enabled on hardware which supports it.

Consequently this kernel is not drop-in compatible with previous kernels as
some sysfs files have moved and an ALSA control has changed.

So please be careful...


Now to go look at 3.12 :-)

NeilBrown
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