From patchwork Wed Sep 23 09:21:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matti Vaittinen X-Patchwork-Id: 1369736 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=fi.rohmeurope.com Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4BxCP601xvz9sTS for ; Wed, 23 Sep 2020 19:22:02 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726338AbgIWJV5 (ORCPT ); Wed, 23 Sep 2020 05:21:57 -0400 Received: from mail-lj1-f196.google.com ([209.85.208.196]:34986 "EHLO mail-lj1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726308AbgIWJV4 (ORCPT ); Wed, 23 Sep 2020 05:21:56 -0400 Received: by mail-lj1-f196.google.com with SMTP id a15so16627496ljk.2; Wed, 23 Sep 2020 02:21:54 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent; bh=K/+FlzwEfC9DE2Ou4H87NcviiAaFeLbsoHSsi8TXT0o=; b=WJHdpHMnkb+aiV3J8Edtpp5aGlQwHb3xDgjPIkwWxoaGHP+RKyQLfGoZbZrVg4pF99 YL5BqXpX6o3dIteItnCaW5WwiE+pHwGOhaFgY+CfV6RMRXNhJU3eVlFeRh+jd1gkOJcU Yxia3s2FOnBfPDa7Mno2YA2Z4kaqKP1+iDkg6lGBljIS8Yvvg0rSMagXL4PNuREl09n+ /dhS57ptFq+QyOldz+AgB+RNIfNdxJ4Gq31uvnZQPf2kRtQaGXV6NJrO3mAAbseTwvOG TwJaeXJw7mA+5j8nYzhllDxGzGPvzdNNXhw5FTbGedHJi7hfcgAseCn1eboItWZ5BomB wpjA== X-Gm-Message-State: AOAM531O5tLy4kuoAoAeqWBMsHHw4Cwn37z0EiTzdoZyqj8OFT12su89 2L49H5cvH7+61VsoaWTuBjQ= X-Google-Smtp-Source: ABdhPJxBhW7LZwpMiDnTUvVfVWPs06ohlAYCCU5FLZVtFMKxxu+bRGTOwn/+G+dNbGCqfB0iz9JACg== X-Received: by 2002:a2e:b52c:: with SMTP id z12mr2682595ljm.437.1600852913571; Wed, 23 Sep 2020 02:21:53 -0700 (PDT) Received: from localhost.localdomain ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id f22sm4548442lfc.240.2020.09.23.02.21.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2020 02:21:52 -0700 (PDT) Date: Wed, 23 Sep 2020 12:21:41 +0300 From: Matti Vaittinen To: mazziesaccount@gmail.com, matti.vaittinen@fi.rohmeurope.com Cc: Lee Jones , Rob Herring , Liam Girdwood , Mark Brown , Matti Vaittinen , Wim Van Sebroeck , Guenter Roeck , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-power@fi.rohmeurope.com, linux-watchdog@vger.kernel.org Subject: [PATCH v2 0/4] Support ROHM BD9576MUF and BD9573MUF PMICs Message-ID: MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.12.1 (2019-06-15) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Initial support for ROHM BD9576MUF and BD9573MUF PMICs. These PMICs are primarily intended to be used to power the R-Car family processors. BD9576MUF includes some additional safety features the BD9573MUF does not have. This initial version of drivers does not utilize these features and for now the SW behaviour is identical. Please note that this version of drivers is only tested on BD9576MUF but according to the data-sheets the relevant parts of registers should be same so drivers should also work on BD9573MUF. This patch series includes MFD and watchdog drivers. Regulator part was already applied. - Enabling and pinging the watchdog - configuring watchog timeout / window from device-tree This patch series does not bring interrupt support. BD9576MUF and BD9573MUF are designed to keep the IRQ line low for whole duration of error condition. IRQ can't be 'acked'. So proper IRQ support would require some IRQ limiter implementation (delayed unmask?) in order to not hog the CPU. Changelog v2: - dropped already applied regulator part - dt_bindings: Fixed case for regulator-names in the example - watchdog: unified probe error check and revised includes - mfd: removed extra linefeeds from header --- Matti Vaittinen (4): dt_bindings: mfd: Add ROHM BD9576MUF and BD9573MUF PMICs mfd: Support ROHM BD9576MUF and BD9573MUF wdt: Support wdt on ROHM BD9576MUF and BD9573MUF MAINTAINERS: Add ROHM BD9576MUF and BD9573MUF drivers .../bindings/mfd/rohm,bd9576-pmic.yaml | 129 ++++++++ MAINTAINERS | 4 + drivers/mfd/Kconfig | 11 + drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd9576.c | 130 ++++++++ drivers/watchdog/Kconfig | 13 + drivers/watchdog/Makefile | 1 + drivers/watchdog/bd9576_wdt.c | 284 ++++++++++++++++++ include/linux/mfd/rohm-bd957x.h | 59 ++++ include/linux/mfd/rohm-generic.h | 2 + 10 files changed, 634 insertions(+) create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd9576-pmic.yaml create mode 100644 drivers/mfd/rohm-bd9576.c create mode 100644 drivers/watchdog/bd9576_wdt.c create mode 100644 include/linux/mfd/rohm-bd957x.h base-commit: f4d51dffc6c01a9e94650d95ce0104964f8ae822