From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) (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 BCEE8372664 for ; Thu, 9 Apr 2026 07:21:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.175 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775719292; cv=none; b=D7zV0fzoVGaGQTrUmF6q5w4ZD0DZJzmzvtVKOZBn89ugZRAs/ShgjxZhYlyP8Xt1bxzd/8ZoDOgz3F+dAkzwgcltS7SNqG5xpEWwCeQCs2wdiQOWIg4QZCofu1ICzP5jE4V0xh9WEsKtbuXs8u0KDhxm2ymit5PirAQ9mJH4DFA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775719292; c=relaxed/simple; bh=/aQvxwyfiMEttMc4XjUXTFf8VOx3i5lmxTbBl+aVsrA=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=NrEy1EoNjZ388eHFXuyOGmcIYOZE9jR0ihwKJSWJZn9QlbA5PUgeuABvjLOVT7uQVQRJMJN0KNeQve8ljfjqfUmwRlByFnm9DCmBtOdccQKOEyp7vv65quIvp+9zfkpS7DUqZor7cxUdXxwNVJLTvFk2YAl1tQf25xsa5MiHTQ0= 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=tIBpX06c; arc=none smtp.client-ip=209.85.210.175 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="tIBpX06c" Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-82d03827316so266267b3a.0 for ; Thu, 09 Apr 2026 00:21:30 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1775719290; x=1776324090; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=7RCwBZBvsaSuctATrpMWLtlus3Iz6VFiDekP6BgSoq0=; b=tIBpX06c+Ix6e8O9UKY59FslCdB3tnBS7B3fnJS/ljvlxuRTsxmoel1+TeNAcS+L8f 3rkLLh6yd8Bt6hgV6i9b5d9TlsFg4SMxw9bqp3OeBZ1FkqyRI6BrQy5ha3HTEzaLh9ca UQ98ZliFVtLF/SY7M9en6U6l4YytZYjIS8VNbVSZuv1h7xmlpjUUxb8pVGCboetOBNLx TVP5gh3AcIOjJOANjUJJxL/43q5ZPHqluGxY7DTnea/o25QglEfRh+1V9VyB2ezGf/YJ ufu3XFJ1WXMwOg/j0s6lQmfeuQcCze+j+0VjHn6BEVakGH9kkXXMJrDE6JYLuP032ork kqsw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1775719290; x=1776324090; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to; bh=7RCwBZBvsaSuctATrpMWLtlus3Iz6VFiDekP6BgSoq0=; b=m/K8mmuQ0ihiG/qLIzv3ni9CbCtde2ipC8Ivn4nSDYB1QrKhr+pZ59AXI16UDaJ9/n KWPg+2QT9nVY1SOjhn0jQ8um3V8LyoYX7mJ+fWzVKsEfjUMiHOpMYX08b6gPptPRmuak zASPm+usjBPw9k50Bq6I5XZDJSnRpYVlOSIJmUJE6/wQZBtRweHTk5w0dYbMUPhHd5mZ OxGDeBEbreUzXv7it5vnbJGNEOkcieh26hwUsDsWafysYayDTJVT186rVTmRYKw5x3Dx m3ScSpEF8KB4Dg1qMajqvJAYQXShP1s4+D0voVydjLdKXO3dd2PnbzfXhHhiFZVHu1T8 9gcg== X-Forwarded-Encrypted: i=1; AJvYcCW6w+OcBaUoumhT4etvDIVw6zaQ9rZgwWLO9xnFSC2P6GASud56XvioSXSJGY8f31Lw1B34EyqslWbNPkg=@vger.kernel.org X-Gm-Message-State: AOJu0YxWZlVNFva6WYnDlxsxYXOywWJzTwD1U9Ji+VopivrrKF5KOfE+ TzYQy6Brl5ERWZ/XFL+LicZrMGAdc9zlUWrEpvXuSj95CP6iCOuYLBwC X-Gm-Gg: AeBDievtSeAV/SJztcWxESxMJpb1F/DYTvh3UK9LE9hcT+4xpYwPNru/oIx3n9C00Ky aTn7nxlT1c6MtK88XOOTp6ERlBF6j2R6E5ZbuKm7ihjeGP1iWDoYJnmvc/zgIIysjW3T9YsOqKP wJbtyhBid4xyTPv7TJyRjdfFE7QlOd+8RBayWGWjEoOo8HHAy8bMOTSgI/VP0LE7gZr5jWQ/A3X JTY1SbZPBYVCxFvNE5HdLw08jQzXm68Dl+ldJOxisVkhSUgSm0XPt6NA4EGUn2lSEOgy+0TJouh zOEEWYcMH3gTFjgsf78bYh2kPu24K+A0rNY8XQSrKX5JMSjdRkGMfCtsLys7RFU7t3/VTs3Qxtl lggtOoHZDESsYo/sqQYsVf+T1/fP8w2FgGIX2pvzqzNOJpJd5rtzxwdyIoCoyPnM022HMjQGZxY EHxg3GIABU2/O7NmW94RXVSqg975q2xSDYDJc1p/yuWUtycagMwwJ5WSFGY+57ZL4sFmjo2Q1go JXiexGA X-Received: by 2002:a05:6a00:b60e:b0:827:2d7b:5038 with SMTP id d2e1a72fcca58-82dd8a1d9f4mr2094952b3a.5.1775719289983; Thu, 09 Apr 2026 00:21:29 -0700 (PDT) Received: from davidwang.. (61-220-246-151.hinet-ip.hinet.net. [61.220.246.151]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82d11f76c09sm18807603b3a.55.2026.04.09.00.21.26 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 09 Apr 2026 00:21:29 -0700 (PDT) From: David Wang To: a.zummo@towertech.it, alexandre.belloni@bootlin.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org Cc: andrew@aj.id.au, avi.fishman@gmail.com, tmaimon77@gmail.com, tali.perry1@gmail.com, venture@google.com, yuenn@google.com, benjaminfair@google.com, ctcchien@nuvoton.com, mimi05633@gmail.com, openbmc@lists.ozlabs.org, linux-rtc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, davidwang@quantatw.com, David Wang Subject: [PATCH 1/2] dt-bindings: rtc: nct3018y: add nuvoton,ctrl-reg-val property Date: Thu, 9 Apr 2026 15:21:04 +0800 Message-Id: X-Mailer: git-send-email 2.34.1 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add "nuvoton,ctrl-reg-val" vendor property to allow optional initialization of the RTC control register (0x0A). This allows platform-specific configurations like 24h mode and write ownership to be defined via Device Tree. Signed-off-by: David Wang --- Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml index 4f9b5604acd9..0984dfb77170 100644 --- a/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml +++ b/Documentation/devicetree/bindings/rtc/nuvoton,nct3018y.yaml @@ -24,6 +24,10 @@ properties: reset-source: true + nuvoton,ctrl-reg-val: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Initial value for the control register (0x0A). + required: - compatible - reg @@ -39,6 +43,7 @@ examples: rtc@6f { compatible = "nuvoton,nct3018y"; reg = <0x6f>; + nuvoton,ctrl-reg-val = <0x21>; }; }; -- 2.34.1