linux-kernel - [PATCH v7,0/4] Cooperate with DSI RX devices to modify dsi funcs and delay mipi high to cooperate with panel sequence

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Message-ID: <1653012007-11854-1-git-send-email-xinlei.lee@mediatek.com>
Date:   Fri, 20 May 2022 10:00:03 +0800
From:   <xinlei.lee@...iatek.com>
To:     <chunkuang.hu@...nel.org>, <p.zabel@...gutronix.de>,
        <airlied@...ux.ie>, <daniel@...ll.ch>, <matthias.bgg@...il.com>
CC:     <dri-devel@...ts.freedesktop.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <Project_Global_Chrome_Upstream_Group@...iatek.com>,
        <rex-bc.chen@...iatek.com>, <jitao.shi@...iatek.com>,
        Xinlei Lee <xinlei.lee@...iatek.com>
Subject: [PATCH v7,0/4] Cooperate with DSI RX devices to modify dsi funcs and delay mipi high to cooperate with panel sequence

From: Xinlei Lee <xinlei.lee@...iatek.com>

In upstream-v5.8, dsi_enable will operate panel_enable, but this
modification has been moved in v5.9. In order to ensure the timing of
dsi_power_on/off and the timing of pulling up/down the MIPI signal,
the modification of v5.9 is synchronized in this series of patches.

Change since v6:
1. Change comment back linux version to kernel 5.10.

Change since v5:
1. Merged [v5,1/5] drm/mediatek: Adjust the timing of mipi signal from
LP00 to LP11 to [v5,4/5] drm/mediatek: keep dsi as LP00 before dcs cmds
transfer, because in (v5,1/5) to adjust the dsi func sequence in order
to move to lane_ready func together in (v5, 4/5).

Changes since v4:
1. Dsi func modified to atomic operation.
2. Added fix tag.
3. Removed lane_ready print statement.

Changes since v3:
1. Rebase kernel-5.18-rc1.
2. Added dsi_enable protection.
3. Encapsulates the dsi_lane_ready function.

Changes since v2:
1. Rebase linux-next.

Changes since v1:
1. Dsi sequence marked with patch adjustment.
2. Fixes: mtk_dsi: Use the drm_panel_bridge.

Jitao Shi (2):
  drm/mediatek: Separate poweron/poweroff from enable/disable and define
    new funcs
  drm/mediatek: keep dsi as LP00 before dcs cmds transfer

Xinlei Lee (2):
  drm/mediatek: Modify dsi funcs to atomic operations
  drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff
    function

 drivers/gpu/drm/mediatek/mtk_dsi.c | 93 ++++++++++++++++++++----------
 1 file changed, 63 insertions(+), 30 deletions(-)

-- 
2.18.0