linux-kernel - [PATCH] drm/msm/dp: Make it possible to enable the test pattern

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Message-Id: <20210629002234.1787149-1-bjorn.andersson@linaro.org>
Date:   Mon, 28 Jun 2021 17:22:34 -0700
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Rob Clark <robdclark@...il.com>, Sean Paul <sean@...rly.run>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Abhinav Kumar <abhinavk@...eaurora.org>
Cc:     Stephen Boyd <swboyd@...omium.org>, linux-arm-msm@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/msm/dp: Make it possible to enable the test pattern

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@...aro.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);
-- 
2.29.2