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