linux-arm-kernel.lists.infradead.org archive mirror
 help / color / mirror / Atom feed
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


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  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

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1647503611-13144-2-git-send-email-xinlei.lee@mediatek.com \
    --to=xinlei.lee@mediatek.com \
    --cc=Project_Global_Chrome_Upstream_Group@mediatek.com \
    --cc=airlied@linux.ie \
    --cc=chunkuang.hu@kernel.org \
    --cc=daniel@ffwll.ch \
    --cc=dri-devel@lists.freedesktop.org \
    --cc=jitao.shi@mediatek.com \
    --cc=linux-arm-kernel@lists.infradead.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mediatek@lists.infradead.org \
    --cc=matthias.bgg@gmail.com \
    --cc=p.zabel@pengutronix.de \
    --cc=rex-bc.chen@mediatek.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).