linux-kernel - [PATCH v2 2/2] drm/panel: samsung-s6d7aa0: drop DRM_BUS_FLAG_DE

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Date: Fri, 05 Jan 2024 07:53:02 +0100
From: Artur Weber <aweber.kernel@...il.com>
To: Rob Herring <robh+dt@...nel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
 Conor Dooley <conor+dt@...nel.org>, Alim Akhtar <alim.akhtar@...sung.com>, 
 Neil Armstrong <neil.armstrong@...aro.org>, 
 Jessica Zhang <quic_jesszhan@...cinc.com>, Sam Ravnborg <sam@...nborg.org>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-samsung-soc@...r.kernel.org, linux-kernel@...r.kernel.org, 
 dri-devel@...ts.freedesktop.org, Artur Weber <aweber.kernel@...il.com>
Subject: [PATCH v2 2/2] drm/panel: samsung-s6d7aa0: drop
 DRM_BUS_FLAG_DE_HIGH for lsl080al02

It turns out that I had misconfigured the device I was using the panel
with; the bus data polarity is not high for this panel, I had to change
the config on the display controller's side.

Fix the panel config to properly reflect its accurate settings.

Fixes: 6810bb390282 ("drm/panel: Add Samsung S6D7AA0 panel controller driver")
Reviewed-by: Jessica Zhang <quic_jesszhan@...cinc.com>
Signed-off-by: Artur Weber <aweber.kernel@...il.com>
---
 drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
index ea5a85779382..f23d8832a1ad 100644
--- a/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
+++ b/drivers/gpu/drm/panel/panel-samsung-s6d7aa0.c
@@ -309,7 +309,7 @@ static const struct s6d7aa0_panel_desc s6d7aa0_lsl080al02_desc = {
 	.off_func = s6d7aa0_lsl080al02_off,
 	.drm_mode = &s6d7aa0_lsl080al02_mode,
 	.mode_flags = MIPI_DSI_MODE_VSYNC_FLUSH | MIPI_DSI_MODE_VIDEO_NO_HFP,
-	.bus_flags = DRM_BUS_FLAG_DE_HIGH,
+	.bus_flags = 0,
 
 	.has_backlight = false,
 	.use_passwd3 = false,

-- 
2.43.0