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    drm/i915: select framebuffer support automatically · d2f59357
    Ingo Molnar 提交于
    Migration helper.
    
    The i915 driver recently added a 'depends on FB' rule to its
    Kconfig entry - which silently turns off DRM_I915 if someone
    has a working config but no CONFIG_FB selected, and upgrades
    to the latest upstream kernel.
    
    Norbert Preining reported this problem:
    
       Bug-Entry   : http://bugzilla.kernel.org/show_bug.cgi?id=12599
       Subject     : dri /dev node disappeared with 2.6.29-rc1
    
    So change it to "select FB", which auto-selects framebuffer
    support. This way the driver keeps working, regardless of
    whether FB was enabled before or not.
    
    Kconfig select's of interactive options can be problematic to
    dependencies and can cause build breakages - but in this case
    it's safe because it's a leaf entry with no dependencies of its
    own.
    
    ( There is some minor circular dependency fallout as FB_I810
      and FB_INTEL also used 'depends on FB' constructs - update
      those to "select FB" too. )
    Reported-by: NNorbert Preining <preining@logic.at>
    Signed-off-by: NIngo Molnar <mingo@elte.hu>
    Signed-off-by: NDave Airlie <airlied@linux.ie>
    d2f59357
Kconfig 4.1 KB