[Bug 781] LM4857 should be turned off on a reboot notifier

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http://bugzilla.openmoko.org/cgi-bin/bugzilla/show_bug.cgi?id=781





------- Additional Comments From willie_chen at openmoko.com  2007-09-07 20:09 -------
Created an attachment (id=276)
 --> (http://bugzilla.openmoko.org/cgi-bin/bugzilla/attachment.cgi?id=276&action=view)
some changes about Alex's patch

Hi Alex,

Thanks for your advice. According to i2c_driver structure, I modify your patch.
The lm4857_suspend and lm4857_shutdown can be executed. :)

I test our neo1973 steps (shutdown mode)as follows
1. Cut off power for GSM. So GSM module can't work.
2. Power on GTA01, then enter into x-windows and press menu item "power off".
3. This time, power supply displays 0 mV.

Another test steps (suspend/resume mode) as follows
1. Cut off power for GSM. So GSM module can't work.
2. Power on GTA01, then enter into x-windows and press menu item "lock phone".
3. This time, power supply displays 39.6 mV.
4. Then press power key, and resume the neo1973. 

I think our neo1973 in suspend mode wastes a lot of power. But it's another
issue.




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