Files
OpenCellular/common
David Hendricks 9a3e056af5 daisy v1.02: power sequencing updates
Note: This will not work on older (0.94 boards).

- Use power button (KB_PWR_ON) to drive power sequencing events and
  disable EC_PWRON. This is because EC_PWRON and KB_PWR_ON shared an
  external interrupt line. Daisy v2.x will fix this so that both can
  be enabled. Note: KB_PWR_ON is active low, wihle EC_PWRON is active
  high.

- Relay power button state to PMIC. Also, since we are driving
  PMIC_PWRON instead of PMIC_ACOK now, so updated the naming.

- Add a keyboard power button debounce period to avoid accidentally powering
  the system back on after keyboard power-off.

Signed-off-by: David Hendricks <dhendrix@chromium.org>

BUG=None
TEST=tested on daisy (frh@ verified behavior using a scope)

Change-Id: I5338eebe42c9b43a07af371a450db23276b2a574
2012-04-27 17:58:27 -07:00
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