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[209.85.220.41]) by mx.google.com with SMTPS id 5b1f17b1804b1-49fde222050sor4159995e9.6.2026.09.23.08.24.43 for (Google Transport Security); Wed, 23 Sep 2026 08:24:43 -0700 (PDT) Received-SPF: pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) client-ip=209.85.220.41; X-Forwarded-Encrypted: i=1; AKwUvBz1CRWss2RLHT/WHTpSQsw+FqwwvkESynVrn31ZiGJab2PO+5kBYDmHYMR7eA6WfxIrM2fH3QjaQOjdkkxg@amarulasolutions.com X-Gm-Gg: AYBFou07lGyy+8Iv1rnCyAtsHF0QGPCS5kWDZglZMvxsvp/OjgrW+9H3wT9dS8jRhSl rz3gz6O/TwReRxwGueBbFpOTHNLjY3A3I5t1Dv0EOvyR8GGd+qnhqGYNWtKSS+6ADC6M1wWXSbb ldNYSMvs5Vv5alrSPGPJq9Y4Us3qhUvoCSPm4y0SXMjgkzFpE1xOwI7twd0Vq4fgx5lu5GUA6Xs IqEK0YDYrywrYmVokuSHMXFTeWhyVxp+SCqQaLHVSAkFlNaTRsmmboN0p6cJrL1FxRoZ2Ng93k2 zHgbWbxNo2ZMOKQ+GG6H0wVjx+w0LZ/krj+HRL8jT0nNRxe4CG9uWtOUDtjzNgybudgWr289N2C O969hbCULlv1bhNdHoPQr+GxY64o/ekPosHbVHtBoqTj1jZB4faxla/7wSbW9c8d1FwMUEBb50+ LR7F3ct8S9JW4Wx0kqhc40HBj9quxI1lZn/GmvOGL/U7xvP4+H2Qz0m+WecrVp2JCCdmFTxpFTd uOo9kRRtlmRUFk25tbcg7njAP3zkNUa1qrX5dNftTv7Hsms14HZkW4LC7G269D0wzcIDn8zyJtA vaTKHIrL1T1/ X-Received: by 2002:a05:600d:8491:10b0:49f:ce79:7a8d with SMTP id 5b1f17b1804b1-49fde4acce8mr34646275e9.17.1790177083240; Wed, 23 Sep 2026 08:24:43 -0700 (PDT) Received: from localhost.localdomain ([2001:b07:6474:ebbf:12f8:fcfa:728a:2514]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fe0c446e1sm55582165e9.2.2026.09.23.08.24.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 08:24:42 -0700 (PDT) From: Dario Binacchi To: Alexandre Torgue , Maxime Coquelin Cc: linux-stm32@st-md-mailman.stormreply.com, francesco.utel@engicam.com, linux-arm-kernel@lists.infradead.org, linux-amarula@amarulasolutions.com, domenico.acri@engicam.com, devicetree@vger.kernel.org, Rob Herring , Marek Vasut , Conor Dooley , Krzysztof Kozlowski , michael@amarulasolutions.com, linux-kernel@vger.kernel.org, Dario Binacchi Subject: [PATCH 2/2] arm64: dts: st: add Engicam MicroGEA-STM32MP257D-RMM LVDS display overlay Date: Wed, 23 Sep 2026 17:23:48 +0200 Message-ID: <20260923152435.563925-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260923152435.563925-1-dario.binacchi@amarulasolutions.com> References: <20260923152435.563925-1-dario.binacchi@amarulasolutions.com> MIME-Version: 1.0 X-Original-Sender: dario.binacchi@amarulasolutions.com X-Original-Authentication-Results: mx.google.com; dkim=pass header.i=@amarulasolutions.com header.s=google header.b=eXuQ9GMI; spf=pass (google.com: domain of dario.binacchi@amarulasolutions.com designates 209.85.220.41 as permitted sender) smtp.mailfrom=dario.binacchi@amarulasolutions.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=amarulasolutions.com; dara=neutral header.i=@amarulasolutions.com Content-Type: text/plain; charset="UTF-8" Precedence: list Mailing-list: list linux-amarula@amarulasolutions.com; contact linux-amarula+owners@amarulasolutions.com List-ID: X-Spam-Checked-In-Group: linux-amarula@amarulasolutions.com X-Google-Group-Id: 476853432473 List-Post: , List-Help: , List-Archive: List-Unsubscribe: , Add an overlay for the variant fitted with the AM-1280800W8TZQW-T00H 10.1" 1280x800 LVDS panel. Its touchscreen is connected over USB, so there is no touchscreen node. Signed-off-by: Dario Binacchi --- arch/arm64/boot/dts/st/Makefile | 6 ++ ...gea-rmm-overlay-am-1280800w8tzqw-t00h.dtso | 67 +++++++++++++++++++ .../st/stm32mp257d-engicam-microgea-rmm.dts | 2 +- 3 files changed, 74 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtso diff --git a/arch/arm64/boot/dts/st/Makefile b/arch/arm64/boot/dts/st/Makefile index 218ff7fdf576..7f657d2bd629 100644 --- a/arch/arm64/boot/dts/st/Makefile +++ b/arch/arm64/boot/dts/st/Makefile @@ -1,4 +1,8 @@ # SPDX-License-Identifier: GPL-2.0-only +stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h-dtbs := \ + stm32mp257d-engicam-microgea-rmm.dtb \ + stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtbo + stm32mp257d-engicam-microgea-rmm-overlay-rk050hr345-ct106a-dtbs := \ stm32mp257d-engicam-microgea-rmm.dtb \ stm32mp257d-engicam-microgea-rmm-overlay-rk050hr345-ct106a.dtbo @@ -7,6 +11,8 @@ dtb-$(CONFIG_ARCH_STM32) += \ stm32mp215f-dk.dtb \ stm32mp235f-dk.dtb \ stm32mp257d-engicam-microgea-rmm.dtb \ + stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtb \ + stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtbo \ stm32mp257d-engicam-microgea-rmm-overlay-rk050hr345-ct106a.dtb \ stm32mp257d-engicam-microgea-rmm-overlay-rk050hr345-ct106a.dtbo \ stm32mp257f-dk.dtb \ diff --git a/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtso b/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtso new file mode 100644 index 000000000000..7655c1bf56b1 --- /dev/null +++ b/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm-overlay-am-1280800w8tzqw-t00h.dtso @@ -0,0 +1,67 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2026 Amarula Solutions, Dario Binacchi + * Copyright (C) 2026 Engicam srl + * + * Ampire AM-1280800W8TZQW-T00H 10.1" 1280x800 LVDS panel. Its touchscreen + * controller is connected over USB. + */ + +/dts-v1/; +/plugin/; + +#include + +&{/} { + panel-lvds { + compatible = "ampire,am-1280800w8tzqw-t00h"; + backlight = <&backlight>; + power-supply = <®_3v3>; + + port { + panel_in: endpoint { + remote-endpoint = <&lvds_out>; + }; + }; + }; +}; + +&framebuffer { + clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>, + <&rcc CK_BUS_LVDS>, <&rcc CK_KER_LVDSPHY>; +}; + +<dc { + status = "okay"; + + port { + ltdc_out: endpoint { + remote-endpoint = <&lvds_in>; + }; + }; +}; + +&lvds { + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + lvds_in: endpoint { + remote-endpoint = <<dc_out>; + }; + }; + + port@1 { + reg = <1>; + + lvds_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; +}; diff --git a/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm.dts b/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm.dts index 4b39b6c482d6..87d4bac1c89b 100644 --- a/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm.dts +++ b/arch/arm64/boot/dts/st/stm32mp257d-engicam-microgea-rmm.dts @@ -43,7 +43,7 @@ chosen { #size-cells = <2>; ranges; - framebuffer { + framebuffer: framebuffer { compatible = "simple-framebuffer"; clocks = <&rcc CK_BUS_LTDC>, <&rcc CK_KER_LTDC>; lcd-supply = <®_3v3>;