From patchwork Fri Oct 11 10:43:52 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Marangi X-Patchwork-Id: 13832393 Received: from mail-wm1-f48.google.com (mail-wm1-f48.google.com [209.85.128.48]) (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 D6DCE1E379F; Fri, 11 Oct 2024 10:44:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.48 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728643490; cv=none; b=r96wGM8m5VmNVn/og1AeUwqOWQxxcs9pnkOoCFcBuKvwZiy19uj1U95YT5TmYZcFd/X0/wO++wO/B1TRouBjqI6MlysvtvxSJxvIdhDWntQrQjf7p1E7xog46q9J+8eNwh95G0uwJ0kg8zt0WNpX7ShalqCbUmhpKRue9xxxJfo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728643490; c=relaxed/simple; bh=8YftU+J2X9J13YWxNurwa6s8iQGMItBydkLmUXRoHyc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=UOqJ0/8NLTiPCORNh7ahN5X3s68+IdqWLMpXbdxr9l4SW1k/Uwen3K5bkE1QbWsBgDzuq3ZsPRuT/V+2Z622n0pjg/Q7rzTAPoRbqSIloQrQ9H49tmwK0axk7UG1475EU4sUCiGSEWK1+eX4yWOSVXHnsfCqbl7UdCaLYsaqmuo= 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=fSsDMCGN; arc=none smtp.client-ip=209.85.128.48 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="fSsDMCGN" Received: by mail-wm1-f48.google.com with SMTP id 5b1f17b1804b1-431137d12a5so16827635e9.1; Fri, 11 Oct 2024 03:44:48 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1728643487; x=1729248287; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=Z/gVA7B3KjKp4bEd5fzh7WW3A8WX1CDjfsltZdIaACE=; b=fSsDMCGNPK0MQNaV34ORKwbAsvPzWDvmcZLbzFux6lam3mBknVuYdbU05fNFILSpiw MQ+uW7kZoBNuAODtMvnfmIrErhTHuH8RUw8tumPw3WI8yzRYRiCU8M+8ge5+eXT0cR/n VBGgfgn4xx6Ve7fK5uH9Sqyp9BSrx1b3OK8MmK1uco00zHktJc2L6k2Y6u+oUIuGRSts EfWZjhgEZfIokQb4YVA2nVRp4nZrbbBhiDmzaSWSSGM9EkP24OuC/3oDrRryCbQ1sYPd y8zqAAiU4R4tXI0TLVRgJqbBrJWocKqbhIu5py9/Onjd81yBAimrZobgZgDdrcJLbusE Ve0A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1728643487; x=1729248287; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Z/gVA7B3KjKp4bEd5fzh7WW3A8WX1CDjfsltZdIaACE=; b=fmyrQd1cpZXpdHhnptHLHTIMdsGBenFoG7HDK2lcCNcTsm1TbbbsnOr9uWyPLZcdSc t/udDB+u4HKfvKeLf7gqYwoeBU9IMVP9IbFrpwUQ2donrMFJaiy2Mgi9yB7IldxCUwSC 1Kvh+0m7PC8QtMcX0lqWsurzO6nvjXEfnSFrTRWPQbr7oqcm4cGrZjooMpR0e1IK2NoS llNa1z8v9QPAR5LaZpxgkoR5KADpFV3oQ09d0vO5eNl5ZaZM3qWHwiP8++hbF/HKtrKq enCQtbCRTXpyXp435Wnfs1uC/plaW/D0zvN6D+04Pb+hru/trGrnIdrlOb/Q8kncziNr yEyA== X-Forwarded-Encrypted: i=1; AJvYcCW9WYu9ARpH/OHB/+RqlvNPHiv3CKTKItYesNRTdC6rl0pKHnDvrWtAWT8VSwXqeGbRXHyEhwffiuKS@vger.kernel.org, AJvYcCWx7MUETfj/flqpN/SbqLzYZuQGzJX7F1xcLlEW992Km/yucK+zlmO0+r1yOwObwRZZGV+850zKsMyTZvap@vger.kernel.org, AJvYcCX/rc2Q4mrMcaYm6EZFODSP5Fh4lp2gWFQS5SfLJUqB8EbNbBZr8Mq3Lgaf8l6fIsrL4rOqg8FSupyrR7kCle0=@vger.kernel.org X-Gm-Message-State: AOJu0YzTpwnkBv3IXucZPWBaq8PwGztEGZQSC2rI4cKF3xN7hLS+2bxh nc64VF8ymnqYR3x9YZ5iO2egUSj9Art83AlnIOptXPh+rrbP8ie5 X-Google-Smtp-Source: AGHT+IFibIrxXU3f201xBoh5E0+sJzyf4HsP7kGrZdhtjtQviMQx/+xX4KH2Zfr06Ihw5/kRTUCvCw== X-Received: by 2002:a05:600c:3b0d:b0:428:10d7:a4b1 with SMTP id 5b1f17b1804b1-4311df56e7bmr17577355e9.25.1728643486956; Fri, 11 Oct 2024 03:44:46 -0700 (PDT) Received: from localhost.localdomain (93-34-90-105.ip49.fastwebnet.it. [93.34.90.105]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-37d4b6bd23esm3642375f8f.44.2024.10.11.03.44.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Oct 2024 03:44:46 -0700 (PDT) From: Christian Marangi To: Wim Van Sebroeck , Guenter Roeck , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Christian Marangi , linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Lorenzo Bianconi , upstream@airoha.com Cc: Krzysztof Kozlowski Subject: [PATCH v3 1/2] dt-bindings: watchdog: airoha: document watchdog for Airoha EN7581 Date: Fri, 11 Oct 2024 12:43:52 +0200 Message-ID: <20241011104411.28659-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Document watchdog for Airoha EN7581. This SoC implement a simple watchdog that supports a max timeout of 28 seconds. The watchdog ticks on half the BUS clock and requires the BUS clock to be referenced. Signed-off-by: Christian Marangi Reviewed-by: Krzysztof Kozlowski Reviewed-by: Guenter Roeck --- Changes v3: - Add Reviewed-by tag Changes v2: - Drop clock-frequency - Correctly attach BUS clock .../bindings/watchdog/airoha,en7581-wdt.yaml | 47 +++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml diff --git a/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml b/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml new file mode 100644 index 000000000000..6bbab3cb28e5 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/airoha,en7581-wdt.yaml @@ -0,0 +1,47 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/watchdog/airoha,en7581-wdt.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Airoha EN7581 Watchdog Timer + +maintainers: + - Christian Marangi + +allOf: + - $ref: watchdog.yaml# + +properties: + compatible: + const: airoha,en7581-wdt + + reg: + maxItems: 1 + + clocks: + description: BUS clock (timer ticks at half the BUS clock) + maxItems: 1 + + clock-names: + const: bus + +required: + - compatible + - reg + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + #include + + watchdog@1fbf0100 { + compatible = "airoha,en7581-wdt"; + reg = <0x1fbf0100 0x3c>; + + clocks = <&scuclk EN7523_CLK_BUS>; + clock-names = "bus"; + };