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[209.85.220.41]) by mx.google.com with SMTPS id 5b1f17b1804b1-49fde073889sor3835285e9.10.2026.09.23.08.53.40 for (Google Transport Security); Wed, 23 Sep 2026 08:53:40 -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; AKwUvBx2y2sxb0FD86I6U7/YudC4j77CSoner1hAu9HDsa69VMhwylInIiU2BCwnskjCHRsQrnIy72wyjtFVr9Ox@amarulasolutions.com X-Gm-Gg: AYBFou3WjLJzaV4uvoY85HG7rRY0hNhDohJqEeIn6VGNiOxxCcGdhdShEq3cgGedc8f upoBUJmFB1EpINzkBpoyWN7bX4SdXy1NtFWKgY4BibK1qXTJHI05qHeafG1RGooeD9erS2eGghc fLa2DWbwGUFLpqb984Ir5t/L6YgNXl4bzlmuOlgRuqWRNRWJI9cuo0ytzjS4/VPm5ZlbYdZsrQP MzT2AEa+q3zbxa9jdsKI0vnxEyYAx++VdG5XyT7hhe82IBEhUOY81ERzlGi6QqjjlHfQd//Sc4Y D610sqTjqjFHbTMfHx2aCFDdIAcEAAe5B/cTWFr8uNAZI5aFU+x1vY2tDwIWKq1+I7NG083M30W j/wGz7H7TTo7Xpv3d2bFrZHlHmvK0ClrNHs8khNkTTpcyp13TbxRsRWb78OYgxFtBo66fxDgZCz GGcD7lA0ut5IBcQNA8xpc1nHcFPcru7gNqtvI45TJ5UcSZgdtHEZukJkNf8lfOLvDDkuq92Ubcu 2hKCp/OPTIW/W5wyWqFtb83lT1IeYCVG3aoQ7l+sW2YvRe+OiyMxJv9GTWHQpZs/WvrOxpC49V2 btc= X-Received: by 2002:a05:600c:1382:b0:49f:ce78:3566 with SMTP id 5b1f17b1804b1-49fdeffd72cmr43711015e9.23.1790178819775; Wed, 23 Sep 2026 08:53:39 -0700 (PDT) Received: from localhost.localdomain ([2001:b07:6474:ebbf:12f8:fcfa:728a:2514]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-49fde1d5f10sm81858555e9.8.2026.09.23.08.53.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 08:53:39 -0700 (PDT) From: Dario Binacchi To: Alexandre Torgue , Maxime Coquelin Cc: michael@amarulasolutions.com, domenico.acri@engicam.com, linux-arm-kernel@lists.infradead.org, Marek Vasut , francesco.utel@engicam.com, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, devicetree@vger.kernel.org, Conor Dooley , Rob Herring , Krzysztof Kozlowski , linux-amarula@amarulasolutions.com, Dario Binacchi Subject: [PATCH v2 2/2] arm64: dts: st: add Engicam MicroGEA-STM32MP257D-RMM LVDS display overlay Date: Wed, 23 Sep 2026 17:53:10 +0200 Message-ID: <20260923155333.610134-3-dario.binacchi@amarulasolutions.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260923155333.610134-1-dario.binacchi@amarulasolutions.com> References: <20260923155333.610134-1-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=OMxXxqBQ; 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 --- (no changes since v1) 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 faedddc2c914..96b7cb6b5bc1 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>;