Since the PSR feature can help to reduce the power consumption, the
Source device, which can support PSR function, should enable PSR if
the PSR capability of Sink device is detected.
If the user truly does not want to enable PSR function or the Panel
has something wrong with it, the property 'rockchip,disable-psr' will
be helpful.
Change-Id: I03b3c83c7c88ea3fc3ccd447e5c5da49e16f22a9
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
72d923c5f8