From: <xinlei.lee@mediatek.com>
To: <chunkuang.hu@kernel.org>, <p.zabel@pengutronix.de>,
<airlied@linux.ie>, <daniel@ffwll.ch>, <matthias.bgg@gmail.com>
Cc: <dri-devel@lists.freedesktop.org>,
<linux-mediatek@lists.infradead.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>,
<Project_Global_Chrome_Upstream_Group@mediatek.com>,
<rex-bc.chen@mediatek.com>, <jitao.shi@mediatek.com>,
Xinlei Lee <xinlei.lee@mediatek.com>
Subject: [PATCH v3, 1/4] drm/mediatek: Adjust the timing of mipi signal from LP00 to LP11
Date: Thu, 17 Mar 2022 15:53:28 +0800 [thread overview]
Message-ID: <1647503611-13144-2-git-send-email-xinlei.lee@mediatek.com> (raw)
In-Reply-To: <1647503611-13144-1-git-send-email-xinlei.lee@mediatek.com>
From: Jitao Shi <jitao.shi@mediatek.com>
Old sequence:
1. Pull the MIPI signal high
2. Delay & Dsi_reset
3. Set the dsi timing register
4. dsi clk & lanes leave ulp mode and enter hs mode
New sequence:
1. Set the dsi timing register
2. Pull the MIPI signal high
3. Delay & Dsi_reset
4. dsi clk & lanes leave ulp mode and enter hs mode
In the new sequence 2 & 3 & 4 will be moved to dsi_enbale in later patch.
Signed-off-by: Jitao Shi <jitao.shi@mediatek.com>
Signed-off-by: Xinlei Lee <xinlei.lee@mediatek.com>
---
drivers/gpu/drm/mediatek/mtk_dsi.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c
index ccb0511b9cd5..262c027d8c2f 100644
--- a/drivers/gpu/drm/mediatek/mtk_dsi.c
+++ b/drivers/gpu/drm/mediatek/mtk_dsi.c
@@ -649,14 +649,14 @@ static int mtk_dsi_poweron(struct mtk_dsi *dsi)
mtk_dsi_reset_engine(dsi);
mtk_dsi_phy_timconfig(dsi);
- mtk_dsi_rxtx_control(dsi);
- usleep_range(30, 100);
- mtk_dsi_reset_dphy(dsi);
mtk_dsi_ps_control_vact(dsi);
mtk_dsi_set_vm_cmd(dsi);
mtk_dsi_config_vdo_timing(dsi);
mtk_dsi_set_interrupt_enable(dsi);
+ mtk_dsi_rxtx_control(dsi);
+ usleep_range(30, 100);
+ mtk_dsi_reset_dphy(dsi);
mtk_dsi_clk_ulp_mode_leave(dsi);
mtk_dsi_lane0_ulp_mode_leave(dsi);
mtk_dsi_clk_hs_mode(dsi, 0);
--
2.18.0
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next prev parent reply other threads:[~2022-03-17 8:04 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-17 7:53 [PATCH v3, 0/4] Cooperate with DSI RX devices to modify dsi funcs and delay mipi high to cooperate with panel sequence xinlei.lee
2022-03-17 7:53 ` xinlei.lee [this message]
2022-03-17 11:13 ` [PATCH v3,1/4] drm/mediatek: Adjust the timing of mipi signal from LP00 to LP11 Rex-BC Chen
2022-03-22 5:59 ` xinlei.lee
2022-03-21 9:36 ` [PATCH v3, 1/4] " CK Hu
2022-03-22 6:16 ` xinlei.lee
2022-03-17 7:53 ` [PATCH v3, 2/4] drm/mediatek: Separate poweron/poweroff from enable/disable and define new funcs xinlei.lee
2022-03-17 12:02 ` [PATCH v3,2/4] " Rex-BC Chen
2022-03-22 9:23 ` xinlei.lee
2022-03-23 11:46 ` Rex-BC Chen
2022-04-07 3:50 ` xinlei.lee
2022-03-17 7:53 ` [PATCH v3, 3/4] drm/mediatek: keep dsi as LP00 before dcs cmds transfer xinlei.lee
2022-03-17 12:06 ` [PATCH v3,3/4] " Rex-BC Chen
2022-03-22 9:46 ` xinlei.lee
2022-03-17 7:53 ` [PATCH v3, 4/4] drm/mediatek: Add pull-down MIPI operation in mtk_dsi_poweroff function xinlei.lee
2022-03-17 12:20 ` [PATCH v3,4/4] " Rex-BC Chen
2022-03-22 10:00 ` xinlei.lee
2022-03-23 11:54 ` Rex-BC Chen
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