android kernel source code compiling

1. [Building Error] drivers/base/power/main.c:521: error: 'struct dev_pm_info' has no member named 'in_suspend'

drivers/base/power/main.c

- if (dev->parent && dev->parent->power.in_suspend)

+ if (dev->parent && dev->parent->power.is_prepared)

dpm_wait(dev->parent, async);

device_lock(dev);

2. some useful website for android technology:
http://bootloader.wikidot.com/android:kgdb http://www.netmite.com/android/mydroid/development/pdk/docs/bring_up.html http://wiki.kldp.org/wiki.php/AndroidPortingOnRealTarget http://flyingromeo.blog.163.com/blog/static/127613675200981632110807/ http://www.kandroid.org/online-pdk/guide/bring_up.html