From: Sean Paul seanpaul@chromium.org
Once we start shutting off the link during PSR, we're going to want fast training to work. If the display doesn't support fast training, don't enable psr.
Cc: Zain Wang wzz@rock-chips.com Cc: Tomasz Figa tfiga@chromium.org Signed-off-by: Sean Paul seanpaul@chromium.org --- drivers/gpu/drm/bridge/analogix/analogix_dp_core.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c index 225f5e5dd69b..af34554a5a02 100644 --- a/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c +++ b/drivers/gpu/drm/bridge/analogix/analogix_dp_core.c @@ -1040,16 +1040,17 @@ static int analogix_dp_commit(struct analogix_dp_device *dp) if (ret) return ret;
+ /* Check whether panel supports fast training */ + ret = analogix_dp_fast_link_train_detection(dp); + if (ret) + dp->psr_enable = false; + if (dp->psr_enable) { ret = analogix_dp_enable_sink_psr(dp); if (ret) return ret; }
- /* Check whether panel supports fast training */ - ret = analogix_dp_fast_link_train_detection(dp); - if (ret) - dp->psr_enable = false;
return ret; }