From patchwork Mon Nov 23 06:19:41 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Vaittinen, Matti" X-Patchwork-Id: 11924399 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B2923C2D0E4 for ; Mon, 23 Nov 2020 06:19:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5DA1120658 for ; Mon, 23 Nov 2020 06:19:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725954AbgKWGTv (ORCPT ); Mon, 23 Nov 2020 01:19:51 -0500 Received: from mail-lj1-f179.google.com ([209.85.208.179]:38743 "EHLO mail-lj1-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725275AbgKWGTu (ORCPT ); Mon, 23 Nov 2020 01:19:50 -0500 Received: by mail-lj1-f179.google.com with SMTP id j10so4292508lja.5; Sun, 22 Nov 2020 22:19:48 -0800 (PST) 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; bh=xO2tsY1hayMtmxfBz1WCoqicvFhDHRoS5hR7/YuNuNI=; b=V/bwmQCfhH3b3TPm0Avw9nQMZRF6QlxkJex1eKLXn7NW90+XIZ9A32GMp0jdBZ8rtX sY+FLi9hDLhoosSxDUF4YoWwbcP0CTomawURacVDERvxWjQ4z5gz4d7QVyv2WGCMFEsu i9PEnP8FOJiuX0WBhM9Dszacmw2KHBa4E0ntTdLOSNALqOCaI/WwYgQcBEHb7Ak4N43/ e6DmbBidZxjrjF8IKS6QzRNzjCKh/sqz2WQlhBXf6jryYEHg4cgZGE+J0R0AO2UNXAaV Q8+xxWDGPAcjuAko5ZnkEA9TIkaKqzJhgoh9lPpI1SG5iF8nwmFoXGqNHKB6bZHf96wM hZgQ== X-Gm-Message-State: AOAM531e4KkBf9iw1whYd1UbGUcybbZdKGsiGl9vGhgSRhJGtwJTrCAb UUt+g3VJUzxoZ6WtQgS3kJhs8cOuSkWM/Q== X-Google-Smtp-Source: ABdhPJy5KYQHH7TjswJSEmgMyubj4UU79NgYzmAAvQF4J2g09XcuMFl5oyvpSTnQt8uXxK9UGHDcSw== X-Received: by 2002:a2e:585e:: with SMTP id x30mr13238737ljd.426.1606112388178; Sun, 22 Nov 2020 22:19:48 -0800 (PST) Received: from localhost.localdomain (62-78-225-252.bb.dnainternet.fi. [62.78.225.252]) by smtp.gmail.com with ESMTPSA id l16sm1200762lji.123.2020.11.22.22.19.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 22 Nov 2020 22:19:47 -0800 (PST) Date: Mon, 23 Nov 2020 08:19:41 +0200 From: Matti Vaittinen To: matti.vaittinen@fi.rohmeurope.com, mazziesaccount@gmail.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 RESEND v6 0/4] Support ROHM BD9576MUF and BD9573MUF PMICs Message-ID: MIME-Version: 1.0 Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org Initial support for ROHM BD9576MUF and BD9573MUF PMICs. Resending in case it fell through the cracks :) Lee, any chance getting this in MFD? (Also, this still lacks of your ack). 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. 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 v6: - Fixed watchdog timeout Changelog v5: - rebased on top of v5.10-rc2 - few styling fixes in MFD as suggested by Lee Changelog v4: - rebased on top of 5.10-rc1 - Fix typo (repeated word maximum) from the DT binding doc Changelog v3: - use only one binding to specify watchdog time-out window. Changelog v2: - dropped already applied regulator part - dt_bindings: Fix case for regulator-names in the example - watchdod: unify probe error check and revise includes --- 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 | 123 ++++++++ MAINTAINERS | 4 + drivers/mfd/Kconfig | 11 + drivers/mfd/Makefile | 1 + drivers/mfd/rohm-bd9576.c | 108 +++++++ drivers/watchdog/Kconfig | 13 + drivers/watchdog/Makefile | 1 + drivers/watchdog/bd9576_wdt.c | 291 ++++++++++++++++++ include/linux/mfd/rohm-bd957x.h | 59 ++++ include/linux/mfd/rohm-generic.h | 2 + 10 files changed, 613 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: 3cea11cd5e3b00d91caf0b4730194039b45c5891