The debugfs interface contains the knobs to make the DisplayPort controller output a test pattern, unfortunately there's nothing currently that actually enables the defined test pattern.
Fixes: de3ee25473ba ("drm/msm/dp: add debugfs nodes for video pattern tests") Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org --- drivers/gpu/drm/msm/dp/dp_debug.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/msm/dp/dp_debug.c b/drivers/gpu/drm/msm/dp/dp_debug.c index 2f6247e80e9d..82911af44905 100644 --- a/drivers/gpu/drm/msm/dp/dp_debug.c +++ b/drivers/gpu/drm/msm/dp/dp_debug.c @@ -305,6 +305,8 @@ static ssize_t dp_test_active_write(struct file *file, debug->panel->video_test = true; else debug->panel->video_test = false; + + dp_panel_tpg_config(debug->panel, debug->panel->video_test); } } drm_connector_list_iter_end(&conn_iter);