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From: Sebastian Fleer <dev@dwurp.de>
To: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org
Cc: Christoph Fritz <chf.fritz@googlemail.com>,
	Neil Armstrong <neil.armstrong@linaro.org>,
	Jessica Zhang <jesszhan0024@gmail.com>,
	Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
	Jens Reidel <adrian@postmarketos.org>
Subject: [PATCH v2] drm/panel: kingdisplay-kd097d04: Disable EoTp
Date: Wed, 29 Oct 2025 13:35:28 +0100	[thread overview]
Message-ID: <20251029124007.232333-1-dev@dwurp.de> (raw)

Since commit d97e71e44937 ("drm/bridge: synopsys: dw-mipi-dsi: enable EoTp by
default") panel output on an Acer Chromebook Tab 10 (google-dru) is corrupted.
The tablet I use is equipped with a kingdisplay-kd097d04 panel, disabling EoTp
restores the correct functionality.

Fixes: 2a994cbed6b2 ("drm/panel: Add Kingdisplay KD097D04 panel driver")
Suggested-by: Jens Reidel <adrian@postmarketos.org>
Signed-off-by: Sebastian Fleer <dev@dwurp.de>
---

Changes in v2:
- Reference correct commit in Fixes tag
- Added Suggested-by

---
 drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
index 2fc7b0779b37..893af9b16756 100644
--- a/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
+++ b/drivers/gpu/drm/panel/panel-kingdisplay-kd097d04.c
@@ -359,7 +359,7 @@ static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
 	dsi->lanes = 4;
 	dsi->format = MIPI_DSI_FMT_RGB888;
 	dsi->mode_flags = MIPI_DSI_MODE_VIDEO | MIPI_DSI_MODE_VIDEO_BURST |
-			  MIPI_DSI_MODE_LPM;
+			  MIPI_DSI_MODE_LPM | MIPI_DSI_MODE_NO_EOT_PACKET;
 
 	kingdisplay = devm_drm_panel_alloc(&dsi->dev, __typeof(*kingdisplay), base,
 					   &kingdisplay_panel_funcs,
-- 
2.51.2


             reply	other threads:[~2025-10-29 12:40 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-29 12:35 Sebastian Fleer [this message]
2025-10-29 20:39 ` [PATCH v2] drm/panel: kingdisplay-kd097d04: Disable EoTp Neil Armstrong
2025-10-29 20:58 ` Neil Armstrong

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