• Paul Parsons's avatar
    video: w100fb: Reduce sleep mode battery discharge · fb181559
    Paul Parsons authored
    In 2006 and 2007 the handhelds.org kernel w100fb driver was patched to
    reduce sleep mode battery discharge. Unfortunately those two patches
    never migrated to the mainline kernel.
    
    Fortunately the function affected - w100_suspend() - has not changed
    since; thus those patches still apply cleanly.
    
    Applying those patches to linux-3.4-rc3 running on an HP iPAQ hx4700
    reduces the sleep mode battery discharge from approximately 26 mA to
    approximately 11 mA.
    
    This patch combines those two patches into a single unified patch.
    Signed-off-by: default avatarPaul Parsons <lost.distance@yahoo.com>
    Cc: Matt Reimer <mreimer@sdgsystems.com>
    Cc: Philipp Zabel <philipp.zabel@gmail.com>
    Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
    fb181559
w100fb.c 48.2 KB