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[89.139.129.65]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4856ea8fb0dsm152863595e9.3.2026.03.17.11.50.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Mar 2026 11:50:43 -0700 (PDT) From: Yedaya Katsman Date: Tue, 17 Mar 2026 20:50:30 +0200 Subject: [PATCH v5 2/3] drm: panel: Add Samsung S6E8FC0 DSI controller for M1906F9 panel Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260317-panel-patches-v5-2-ef99f7b280da@gmail.com> References: <20260317-panel-patches-v5-0-ef99f7b280da@gmail.com> In-Reply-To: <20260317-panel-patches-v5-0-ef99f7b280da@gmail.com> To: Neil Armstrong , Jessica Zhang , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , =?utf-8?q?Kamil_Go=C5=82da?= , Bjorn Andersson , Konrad Dybcio , Kaustabh Chakraborty Cc: ~postmarketos/upstreaming@lists.sr.ht, phone-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, Yedaya Katsman X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1773773435; l=12581; i=yedaya.ka@gmail.com; s=20260113; h=from:subject:message-id; bh=jWsNfohb23FC1xMBIthnNtSwpjEBeYvlTJwphkOJO48=; b=bUBidpGAUQZTSgYF7kK+fQBC4k71BkK0Qz6MLPtPb6xvOJXpBWbjJ48y6OAa2n7Jl+u6A4PkI 123xJo1NYZtCgWkf41CcMM5HFA9tcbjJ7umZX3/lcDoPDAy++bmbVVJ X-Developer-Key: i=yedaya.ka@gmail.com; a=ed25519; pk=CgNmxD3tYSws5dZfpmJfc6re/bV/f47veVijddHLytk= Add driver for Samsung S6E8FC0 DSI controller for M1906F9 video mode panel, found in Xiaomi Mi A3 mobile phone. Co-developed-by: Kamil Go=C5=82da Signed-off-by: Kamil Go=C5=82da Signed-off-by: Yedaya Katsman Reviewed-by: David Heidelberg Reviewed-by: Dmitry Baryshkov --- The downstream dts claims a max brightness of 2047, but seems to ignore the MSB. --- MAINTAINERS | 5 + drivers/gpu/drm/panel/Kconfig | 13 + drivers/gpu/drm/panel/Makefile | 1 + .../gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c | 301 +++++++++++++++++= ++++ 4 files changed, 320 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index e087673237636268346979ddc270f8cf0905c722..d57d4c128cdd7fde82ba9c68b5f= 1b6d883a36860 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8183,6 +8183,11 @@ S: Maintained F: Documentation/devicetree/bindings/display/panel/samsung,s6e3ha8.yaml F: drivers/gpu/drm/panel/panel-samsung-s6e3ha8.c =20 +DRM DRIVER FOR SAMSUNG S6E8FC0 PANELS +M: Yedaya Katsman +S: Maintained +F: drivers/gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c + DRM DRIVER FOR SAMSUNG SOFEF00 DDIC M: David Heidelberg M: Casey Connolly diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index 7a83804fedca1b688ce6fbe4295ec9009007e693..fed15b7c08ba579a0a09108bca1= 646b4821f94c6 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -893,6 +893,19 @@ config DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01 ~5.6 inch AMOLED display, and the controller is driven by the MIPI DSI protocol with 4 lanes. =20 +config DRM_PANEL_SAMSUNG_S6E8FC0 + tristate "Samsung S6E8FC0 DSI controller" + depends on OF + depends on BACKLIGHT_CLASS_DEVICE + select DRM_MIPI_DSI + help + Say Y or M here if you want to enable support for the Samsung + S6E8FC0 DSI controller and connected panel. + Currently supported panels: + + M1906F9 (M1906F9SH or M1906F9SI), 6.09 inch 720x1560, found + in the Xiaomi Mi A3 smartphone (xiaomi-laurel). + config DRM_PANEL_SAMSUNG_SOFEF00 tristate "Samsung SOFEF00 DSI panel controller" depends on OF diff --git a/drivers/gpu/drm/panel/Makefile b/drivers/gpu/drm/panel/Makefile index b9562a6fdcb38bfd0dfee9e8c11e16149ada4386..bf2b178f507ba1c1173d2b6a468= c5fe5d23977b6 100644 --- a/drivers/gpu/drm/panel/Makefile +++ b/drivers/gpu/drm/panel/Makefile @@ -91,6 +91,7 @@ obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS427AP24) +=3D p= anel-samsung-s6e88a0-ams4 obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E88A0_AMS452EF01) +=3D panel-samsung-s6e8= 8a0-ams452ef01.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA0) +=3D panel-samsung-s6e8aa0.o obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8AA5X01_AMS561RA01) +=3D panel-samsung-s= 6e8aa5x01-ams561ra01.o +obj-$(CONFIG_DRM_PANEL_SAMSUNG_S6E8FC0) +=3D panel-samsung-s6e8fc0-m1906f9= .o obj-$(CONFIG_DRM_PANEL_SAMSUNG_SOFEF00) +=3D panel-samsung-sofef00.o obj-$(CONFIG_DRM_PANEL_SEIKO_43WVF1G) +=3D panel-seiko-43wvf1g.o obj-$(CONFIG_DRM_PANEL_SHARP_LQ079L1SX01) +=3D panel-sharp-lq079l1sx01.o diff --git a/drivers/gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c b/driver= s/gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c new file mode 100644 index 0000000000000000000000000000000000000000..450183ae1c0bbe6159ed2397fa0= 7918c1ebcfbdb --- /dev/null +++ b/drivers/gpu/drm/panel/panel-samsung-s6e8fc0-m1906f9.c @@ -0,0 +1,301 @@ +// SPDX-License-Identifier: GPL-2.0-only +// Copyright (c) Kamil Go=C5=82da +// Copyright (c) Yedaya Katsman +// Generated with linux-mdss-dsi-panel-driver-generator from vendor device= tree: +// Copyright (c) The Linux Foundation. All rights reserved. + +#include +#include +#include +#include +#include +#include + +#include