linux-kernel - [PATCH 0/3] drm/msm/dp: Fix and utilize TPG with a debugfs

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Message-ID: <20241202-tpg-v1-0-0fd6b518b914@quicinc.com>
Date: Mon, 2 Dec 2024 12:41:57 -0800
From: Abhinav Kumar <quic_abhinavk@...cinc.com>
To: Rob Clark <robdclark@...il.com>,
        Dmitry Baryshkov
	<dmitry.baryshkov@...aro.org>,
        Sean Paul <sean@...rly.run>,
        Marijn Suijten
	<marijn.suijten@...ainline.org>,
        David Airlie <airlied@...il.com>, "Simona
 Vetter" <simona@...ll.ch>,
        Stephen Boyd <swboyd@...omium.org>,
        Kuogee Hsieh
	<quic_khsieh@...cinc.com>
CC: <linux-arm-msm@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>,
        <freedreno@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        "Jessica
 Zhang" <quic_jesszhan@...cinc.com>,
        Abhinav Kumar <quic_abhinavk@...cinc.com>
Subject: [PATCH 0/3] drm/msm/dp: Fix and utilize TPG with a debugfs

DP Test Patten Generator is a very useful tool to debug issues such
as blank screen or corruption seen on the DP monitor by isolating it
to whether the corruption is coming from further upstream such as DPU
OR from the DP controller and below. It was noted in [1] that this API
is unused. Rather than dropping the API, it should be fixed and used.

Hence, this series fixes the DP Test Patten Generator API and also utilizes
it by adding a debugfs for it.

[1] : https://patchwork.freedesktop.org/patch/623508/?series=141074&rev=1

To: Rob Clark <robdclark@...il.com>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Sean Paul <sean@...rly.run>
To: Marijn Suijten <marijn.suijten@...ainline.org>
To: David Airlie <airlied@...il.com>
To: Simona Vetter <simona@...ll.ch>
To: Stephen Boyd <swboyd@...omium.org>
To: Kuogee Hsieh <quic_khsieh@...cinc.com>
Cc: linux-arm-msm@...r.kernel.org
Cc: dri-devel@...ts.freedesktop.org
Cc: freedreno@...ts.freedesktop.org
Cc: linux-kernel@...r.kernel.org
Cc: Jessica Zhang <quic_jesszhan@...cinc.com>

Signed-off-by: Abhinav Kumar <quic_abhinavk@...cinc.com>
---
Abhinav Kumar (3):
      drm/msm/dp: account for widebus in msm_dp_catalog_panel_tpg_enable()
      drm/msm/dp: do not touch the MMSS_DP_INTF_CONFIG for tpg
      drm/msm/dp: add a debugfs node for using tpg

 drivers/gpu/drm/msm/dp/dp_catalog.c | 15 +++++++--
 drivers/gpu/drm/msm/dp/dp_debug.c   | 61 +++++++++++++++++++++++++++++++++++++
 drivers/gpu/drm/msm/dp/dp_panel.h   |  2 ++
 3 files changed, 76 insertions(+), 2 deletions(-)
---
base-commit: 798bb342e0416d846cf67f4725a3428f39bfb96b
change-id: 20241202-tpg-3f7543c036ac

Best regards,
-- 
Abhinav Kumar <quic_abhinavk@...cinc.com>