From patchwork Fri Apr 12 11:20:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matti Vaittinen X-Patchwork-Id: 13627640 Received: from mail-lj1-f178.google.com (mail-lj1-f178.google.com [209.85.208.178]) (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 A6D8D42064; Fri, 12 Apr 2024 11:20:12 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.178 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712920814; cv=none; b=f6TLbleleVu8JbCz3nli8qsXlAxkVZH/AniTePH6vDoLU7WURyKddtdhamq5PoAs4StYxVqDierMXZXkJzDDmX+VKYudqYoVwDRsK4P8Bacv8rl6AagpF1wyrS80/eMNMwJBiXMr4tRdZ9b1yf/mlzm56hEWpjdxNrRcyBQmbnY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1712920814; c=relaxed/simple; bh=NsEj4itARfSaIua1zjLoV9RjS978JVu1/c1b7YaNTAg=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=GJo/10wCI7Q066xFXjNd72UmPMFJcgWKzg4F2P3Jf4zsIZ7kfbP0AjycqfLM9BkebLwiiRRqOQYUEzzcXGS8Gm1oQcNcrb+NV9GLeJATK4hkUsNhPVZJlcxlmQ/no54q/uDXQTXAFRyHWZe9pAxAWImfrfdzMu1WLr81QljZ5dY= 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=OpONXfsa; arc=none smtp.client-ip=209.85.208.178 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="OpONXfsa" Received: by mail-lj1-f178.google.com with SMTP id 38308e7fff4ca-2d8743ecebdso8004031fa.1; Fri, 12 Apr 2024 04:20:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1712920811; x=1713525611; darn=vger.kernel.org; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :from:to:cc:subject:date:message-id:reply-to; bh=K6llkGzTMtDecfn5lL/x3eZ2VS0QYxokhuUgjTqLIds=; b=OpONXfsaV/7DVKZQd5jZIk86hcsxXX7uNbesCcgVgsQAZKyi7VFkHtG1eXJqaQ9eOc M5KzKnFsKq848WtYFDc8Y5vPMQpaj2RjTzcXSbQZxSDPRizA3/GgFWXpE2nmz9qFrK7P THipi+/O6dgFIoHDOB5XPvFGS/8Oq/BF1P6QwCRa7lThHDZbMXPVdkrERz+11RFpEbrL 79ntYdgUNQUDvTM46haDSD2velTZyNitBQy/C3RlhfPZONny83WkIBV4uGRPwMKTzfNc DNjS7sSvlTlN/Fu8ZhHt69wwJR1nlRudhO7E2YHPn0aayn0ncuOuiRpoqctxUBiGUslG iilA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1712920811; x=1713525611; h=content-disposition:mime-version:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=K6llkGzTMtDecfn5lL/x3eZ2VS0QYxokhuUgjTqLIds=; b=T7faIMegymv3RNM1Y42PoafPVqZZUtL72wWUBnPG9NDSWaOM4DdIEL3R1vBGas/tqj ESzYNiEtzeUlKp4/jwgmNg1/9a067g9FH8lkC7qk+/epxnf18up1byoobVVnWYUERyQS 2wV8FzdqxSKZZdGHZt6WXFVuMqpk84iL8W2rfZL/MUR7e3WFUDMREZzZ9wpkq6lbKM+x z0UbLUWLzwLCM8WVbYAA/vqQZ7QWNvabrnWcugiRiPJ4YLqIpjNnCbo0prKw4SusyTxT WbO6iDVgTjJMDjsCHfiq0yXbc6EsEAcFe7mZM7Bw5vNd591wv9YWSclLvMmo5fKP/s7P OmlQ== X-Forwarded-Encrypted: i=1; AJvYcCWTQCc6eOVNDMFbCPxssCB6x3+7OrlT4Nq7Jgm2YH85fcGNCFBGJZe98E4soqgE7gWMc1C8n94Uc9OprMhxA8UuC/yLyM9LBqkJu8OP/G4Khvx45vxaJ98DSqsNSM7A+3GsuX9E9ARFzSzlvgLM/JCukS67ldNkQ1gIAer4JMf25Ka1Y99Xa2hF X-Gm-Message-State: AOJu0Yz/JQuxU9thZjWg+hIqLI+5kI3NmZdC5GT7wntlSm/t1rbKyoIf eSrV4O7cXmssbyuPLkz8PI+mqnMzEBxcWRvrUB/AJT79QsHerC6O X-Google-Smtp-Source: AGHT+IG0Ay17+e84Jpncmal/zU9S7d+YchunQ8ETIecjF9tTTfmCwanY2Hb24PMu6UeHLuTOeEQIAQ== X-Received: by 2002:a2e:8456:0:b0:2d4:99f8:8b9f with SMTP id u22-20020a2e8456000000b002d499f88b9fmr1342547ljh.50.1712920810475; Fri, 12 Apr 2024 04:20:10 -0700 (PDT) Received: from fedora ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id d11-20020a2e330b000000b002d68abf446bsm483910ljc.139.2024.04.12.04.20.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Apr 2024 04:20:09 -0700 (PDT) Date: Fri, 12 Apr 2024 14:20:03 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown , Matti Vaittinen , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org Subject: [RFC PATCH v2 0/6] Support ROHM BD96801 scalable PMIC Message-ID: Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Support ROHM BD96801 "scalable" PMIC. The ROHM BD96801 is automotive grade PMIC, intended to be usable in multiple solutions. The BD96801 can be used as a stand-alone, or together with separate 'companion PMICs'. This modular approach aims to make this PMIC suitable for various use-cases. This is sent as an RFC because of the regulator features which can be configured only when the PMIC is in STBY state. This is described more detailed in the regulator patch. Another "oddity" is that the PMIC has two physical IRQ lines. When using regmap IRQ to create own IRQ controller instance for both HWIRQs, there will be a naming collison in debugfs for the IRQ domains. As a work-around the MFD driver uses irq_domain_update_bus_token(intb_domain, DOMAIN_BUS_WIRED); to append '-1' at the end of the domain name. Rest of the series ought to be business as usual. Revision history: RFCv1 => RFCv2: - Tidying code based on feedback form Krzysztof Kozlowski and Lee Jones. - Documented undocumented watchdog related DT properties. - Added usage of the watchdog IRQ. - Use irq_domain_update_bus_token() to work-around debugFS name collision for IRQ domains. --- Matti Vaittinen (6): dt-bindings: ROHM BD96801 PMIC regulators dt-bindings: mfd: bd96801 PMIC core mfd: support ROHM BD96801 PMIC core regulator: bd96801: ROHM BD96801 PMIC regulators watchdog: ROHM BD96801 PMIC WDG driver MAINTAINERS: Add ROHM BD96801 'scalable PMIC' entries .../bindings/mfd/rohm,bd96801-pmic.yaml | 171 ++ .../regulator/rohm,bd96801-regulator.yaml | 69 + MAINTAINERS | 4 + drivers/mfd/Kconfig | 13 + drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd96801.c | 476 ++++ drivers/regulator/Kconfig | 12 + drivers/regulator/Makefile | 2 + drivers/regulator/bd96801-regulator.c | 2114 +++++++++++++++++ drivers/watchdog/Kconfig | 13 + drivers/watchdog/Makefile | 1 + drivers/watchdog/bd96801_wdt.c | 389 +++ include/linux/mfd/rohm-bd96801.h | 211 ++ include/linux/mfd/rohm-generic.h | 1 + 14 files changed, 3477 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd96801-pmic.yaml create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd96801-regulator.yaml create mode 100644 drivers/mfd/rohm-bd96801.c create mode 100644 drivers/regulator/bd96801-regulator.c create mode 100644 drivers/watchdog/bd96801_wdt.c create mode 100644 include/linux/mfd/rohm-bd96801.h base-commit: 4cece764965020c22cff7665b18a012006359095