From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-lf2-f12.google.com (mail-lf2-f12.google.com [74.125.229.204]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 39940497B80 for ; Wed, 23 Sep 2026 11:20:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.229.204 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790162417; cv=none; b=lNHvOzxns+qxjvQKxTYRc3adL6DjMbIBbkijeNJC1LP4xqOradiwOvmsBUfOwRnWulWuAr8nkA1/iuMn6AxoOi2gzw/UhMposlLtpEn5/YJ6fd6NKtvjxKu8IjLmY7/6Bjpt5jaVegShp/QcO3gh0gcy3HIgrUEr5DJqLyS6WFA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790162417; c=relaxed/simple; bh=LzFzKdYIt7KQIiyurFYnhAFiegOmNQVla4mXTg3pu0g=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=XEvJuLUvnRXYsoD0aLcHp9zPa++pVXO7daXMXk5E+6Wwab9UiYeX/dxLFfllwrRrfRD2cYqLbEpHE7P/hVdChTk53jHpwbe/gAzi/tXd7L9IKsg0YOYMrjOAH02R6zIqUmCm2Q9zG0AJ9H44yP0iuF5hUQFR8i2ZC3gDtw32ZnM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=SwpEB2qL; arc=none smtp.client-ip=74.125.229.204 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="SwpEB2qL" Received: by mail-lf2-f12.google.com with SMTP id 2adb3069b0e04-5b79784a6edso693960e87.1 for ; Wed, 23 Sep 2026 04:20:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1790162413; x=1790767213; darn=lists.linux.dev; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to:content-type; bh=MMrTWA/cK4iFg9NfdW/xvRzKZHKELCHs+UzWlZTmsiw=; b=SwpEB2qLHDRQxela5CAeuiVxGDF3m1hC9fKX+o62LRQYpHdtr/jEcoPbrm5i9FaaEA xbAJerbDCnzHDoZbbO/wCWzBNe3G/gqVTaHh9qemyBhEkuM/iVlZMwICPJlaSm+HPUIm VczW2wtklQhyooic6lR7qngJJjw98BvSxLoCpf7WhdxlX7yr6vv1ghD+e7GUJ8Fx/DK9 LNp/1VM7uroIK68HLAnV/QtvbR3FEIcYOLmT6iHIVP7uFRIL2VtMXt9Z2RyAhuEUlFhN 0w5+h7HZlVtPXD3mNiMSMv4jAjavtAz5vnaIDU801zv1dF1FIzZDOJWDeW4IhWUzZp+6 /59w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790162413; x=1790767213; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=MMrTWA/cK4iFg9NfdW/xvRzKZHKELCHs+UzWlZTmsiw=; b=MutfOy2WTfKpMiXq4jgRWZigryqxlVzbIpQFzznXaPsFG/kod8P8O+5VRCLQhfASVH rGdvZN3FzD+H0/c1jQ6ARZaa1I8IBln1B4OCAlq215MMFBLKHamcZF5XaSkD7PG6sKuj 7dCqgqh2my2iiiAhYfgD8rNM4owDuwQhK+apTSj46CDlS7pAD6n07rHTzhdNDzzRBfpp 5sagliJDLCkG+P4Wbs8W+QuCsZcvEpk9Q7mfES9Ld4R4Qil0DZ9WD0GYGMqruU2qhytj ynvec3bganBtoQfswkhqVmOzAEx9d7fKqYxs7Q6DA/7tGWrwEzKor3zHkyS3bOcXqlkg TwDA== X-Gm-Message-State: AFuF++k4hUR0d6eYnlUzbYcO75dxnyrXcZvsR2nbvby2anPHKX5yYjf3 5LPUUW2ELdbgkowyFFV9qkIbbukQw89OeRTVH8gNfK9feo3JGognlQGXeKL/+BQaH2H7lw== X-Gm-Gg: AYBFou18JDalJLTX0W0bBba0ks2jQxNQL75qx9ZUJGsVk5qLNS1TQROLLKUr5lbD/oF ej9DbciOg1JOSa8Unvy1tDWyhYvhPe15MIdExNa+pgykNMLdpKS+Z0tdLbxc88hkmGh2ME0EodY 70h/lk8qsnBJ0QhCLQ9I2hcv5v0lu5+/roVc2CeqXWpQ6Wokezs+IzfEOIPq/z2sCRCKPxk2EoD NAF3N+hfrFDzk4L7JinsbJy6lkF3mSdO+Ma8Jag05dBFyTQyMsdjGey5uq0yztQA68NV/MElETI forTFyb1r8/fm+Rp+NPQPgQ38SJvgdf0EVVfCRoX7Jg6rDweRN73rOW41q5GXWKoKtRpqcB9wpV YDqAxY5lFKD4X6kHcJSnbcxbxbocShFs2dA4jl7y5TPriSdiR7ZnqI1RGa6H8VHAj1r3So9NWK/ 2zrIJr1kLjKdpp5OiJWgCBjiOl6lVeNQHjazutgmBJxrR8ElvauX1mPcAzhee3AoIQw/qhlNGtQ uqCzqa6DvF3Wr3k4aM= X-Received: by 2002:a05:6512:3091:b0:5b6:4ae:3ff4 with SMTP id 2adb3069b0e04-5b8d8967f46mr778397e87.28.1790162412004; Wed, 23 Sep 2026 04:20:12 -0700 (PDT) Received: from DESKTOP-7GRJKK0 ([188.226.104.175]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5b8d8595cb6sm516505e87.82.2026.09.23.04.20.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 04:20:11 -0700 (PDT) From: Vladimir To: Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: linux-sunxi@lists.linux.dev, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH v3 1/2] arm64: dts: allwinner: h616: orangepi-zero2w: add 24-pin expansion overlay Date: Wed, 23 Sep 2026 16:20:07 +0500 Message-ID: <20260923112009.1062-1-anykey196@gmail.com> X-Mailer: git-send-email 2.55.0.windows.3 Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit The optional 24-pin expansion board carries two buttons on LRADC channel 0 and an IR receiver. Keep them out of the base board .dts: with the board detached the LRADC input and the IR receiver pin are not driven and float, which can produce phantom key presses and interrupt storms. Provide them as a devicetree overlay instead, following the existing sun8i-orangepi-zero-interface-board.dtso approach. Tested on: OrangePi Zero 2W (Allwinner H618) with the 24-pin expansion board. Signed-off-by: Vladimir --- arch/arm64/boot/dts/allwinner/Makefile | 2 + .../sun50i-h618-orangepi-zero2w-24pin.dtso | 42 +++++++++++++++++++ 2 files changed, 44 insertions(+) create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w-24pin.dtso diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile index d1f768dd646..e4576030276 100644 --- a/arch/arm64/boot/dts/allwinner/Makefile +++ b/arch/arm64/boot/dts/allwinner/Makefile @@ -57,6 +57,8 @@ dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-orangepi-zero2.dtb dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h616-x96-mate.dtb dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-longanpi-3h.dtb dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero2w.dtb +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero2w-24pin.dtb +sun50i-h618-orangepi-zero2w-24pin-dtbs := sun50i-h618-orangepi-zero2w.dtb sun50i-h618-orangepi-zero2w-24pin.dtbo dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-orangepi-zero3.dtb dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-transpeed-8k618-t.dtb dtb-$(CONFIG_ARCH_SUNXI) += sun50i-h618-yuzukihd-chameleon.dtb diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w-24pin.dtso b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w-24pin.dtso new file mode 100644 index 00000000000..2d7e98e4b66 --- /dev/null +++ b/arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w-24pin.dtso @@ -0,0 +1,42 @@ +// SPDX-License-Identifier: (GPL-2.0-or-later OR X11) +/* + * Device tree overlay for the Orange Pi Zero 2W 24-pin expansion board. + * + * The expansion board provides two buttons wired to LRADC channel 0 and an + * IR receiver. These are only present when the board is attached, so they + * are deliberately kept out of the base .dts: on a bare board the LRADC + * input and the IR receiver pin are not driven and float, which can cause + * phantom key presses and interrupt storms. + * + * Apply on top of: + * arch/arm64/boot/dts/allwinner/sun50i-h618-orangepi-zero2w.dts + */ + +/dts-v1/; +/plugin/; + +#include + +&lradc { + vref-supply = <®_vcc3v3>; + status = "okay"; + wakeup-source; + + button-1000 { + label = "KEY_1"; + linux,code = ; + channel = <0>; + voltage = <1000000>; + }; + + button-1600 { + label = "KEY_ENTER"; + linux,code = ; + channel = <0>; + voltage = <1600000>; + }; +}; + +&ir { + status = "okay"; +}; -- 2.55.0.windows.3