• Tomi Valkeinen's avatar
    OMAPDSS: fix warnings if CONFIG_PM_RUNTIME=n · 373b4365
    Tomi Valkeinen authored
    If runtime PM is not enabled in the kernel config, pm_runtime_get_sync()
    will always return 1 and pm_runtime_put_sync() will always return
    -ENOSYS. pm_runtime_get_sync() returning 1 presents no problem to the
    driver, but -ENOSYS from pm_runtime_put_sync() causes the driver to
    print a warning.
    
    One option would be to ignore errors returned by pm_runtime_put_sync()
    totally, as they only say that the call was unable to put the hardware
    into suspend mode.
    
    However, I chose to ignore the returned -ENOSYS explicitly, and print a
    warning for other errors, as I think we should get notified if the HW
    failed to go to suspend properly.
    Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
    Cc: Jassi Brar <jaswinder.singh@linaro.org>
    Cc: Grazvydas Ignotas <notasas@gmail.com>
    Signed-off-by: default avatarArchit Taneja <archit@ti.com>
    Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
    373b4365
dss.c 18.6 KB