• Tomi Valkeinen's avatar
    OMAPDSS: use sync versions of pm_runtime_put · 0eaf9f52
    Tomi Valkeinen authored
    omapdss doesn't work properly on system suspend. The problem seems to be
    the fact that omapdss uses pm_runtime_put() functions when turning off
    the hardware, and when system suspend is in process only sync versions
    are allowed.
    
    Using non-sync versions normally and sync versions when suspending would
    need rather ugly hacks to convey the information of
    suspending/not-suspending to different functions. Optimally the driver
    wouldn't even need to care about this, and the PM layer would handle
    syncing when suspend is in process.
    
    This patch changes all omapdss's pm_runtime_put calls to
    pm_runtime_put_sync. This fixes the suspend problem, and probably the
    performance penalty of always using sync versions is negligible.
    Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
    Acked-by: default avatarKevin Hilman <khilman@ti.com>
    0eaf9f52
dsi.c 122 KB