Cover Letter Detail
Show a cover letter.
GET /api/1.0/covers/2218683/?format=api
{ "id": 2218683, "url": "http://patchwork.ozlabs.org/api/1.0/covers/2218683/?format=api", "project": { "id": 42, "url": "http://patchwork.ozlabs.org/api/1.0/projects/42/?format=api", "name": "Linux GPIO development", "link_name": "linux-gpio", "list_id": "linux-gpio.vger.kernel.org", "list_email": "linux-gpio@vger.kernel.org", "web_url": "", "scm_url": "", "webscm_url": "" }, "msgid": "<20260401162510.1706073-1-o.rempel@pengutronix.de>", "date": "2026-04-01T16:25:04", "name": "[v10,0/6] mfd: Add support for NXP MC33978/MC34978 MSDI", "submitter": { "id": 71360, "url": "http://patchwork.ozlabs.org/api/1.0/people/71360/?format=api", "name": "Oleksij Rempel", "email": "o.rempel@pengutronix.de" }, "series": [ { "id": 498365, "url": "http://patchwork.ozlabs.org/api/1.0/series/498365/?format=api", "date": "2026-04-01T16:25:07", "name": "mfd: Add support for NXP MC33978/MC34978 MSDI", "version": 10, "mbox": "http://patchwork.ozlabs.org/series/498365/mbox/" } ], "headers": { "Return-Path": "\n <linux-gpio+bounces-34565-incoming=patchwork.ozlabs.org@vger.kernel.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "linux-gpio@vger.kernel.org" ], "Delivered-To": "patchwork-incoming@legolas.ozlabs.org", "Authentication-Results": [ "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c15:e001:75::12fc:5321; helo=sin.lore.kernel.org;\n envelope-from=linux-gpio+bounces-34565-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)", "smtp.subspace.kernel.org;\n arc=none smtp.client-ip=185.203.201.7", "smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=pengutronix.de", "smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=pengutronix.de" ], "Received": [ "from sin.lore.kernel.org (sin.lore.kernel.org\n [IPv6:2600:3c15:e001:75::12fc:5321])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fm9rZ0s6Yz1yCp\n\tfor <incoming@patchwork.ozlabs.org>; Thu, 02 Apr 2026 03:47:26 +1100 (AEDT)", "from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby sin.lore.kernel.org (Postfix) with ESMTP id 1456A30C7FB5\n\tfor <incoming@patchwork.ozlabs.org>; Wed, 1 Apr 2026 16:26:42 +0000 (UTC)", "from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 711CB478E5D;\n\tWed, 1 Apr 2026 16:25:49 +0000 (UTC)", "from metis.whiteo.stw.pengutronix.de\n (metis.whiteo.stw.pengutronix.de [185.203.201.7])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 50AAA46AF2B\n\tfor <linux-gpio@vger.kernel.org>; Wed, 1 Apr 2026 16:25:43 +0000 (UTC)", "from drehscheibe.grey.stw.pengutronix.de ([2a0a:edc0:0:c01:1d::a2])\n\tby metis.whiteo.stw.pengutronix.de with esmtps\n (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256)\n\t(Exim 4.92)\n\t(envelope-from <ore@pengutronix.de>)\n\tid 1w7yNV-00088f-RJ; Wed, 01 Apr 2026 18:25:13 +0200", "from dude04.red.stw.pengutronix.de ([2a0a:edc0:0:1101:1d::ac]\n helo=dude04)\n\tby drehscheibe.grey.stw.pengutronix.de with esmtps (TLS1.3) tls\n TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384\n\t(Exim 4.96)\n\t(envelope-from <ore@pengutronix.de>)\n\tid 1w7yNV-003EjC-0X;\n\tWed, 01 Apr 2026 18:25:13 +0200", "from ore by dude04 with local (Exim 4.98.2)\n\t(envelope-from <ore@pengutronix.de>)\n\tid 1w7yNV-000000079qc-0OLq;\n\tWed, 01 Apr 2026 18:25:13 +0200" ], "ARC-Seal": "i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116;\n\tt=1775060748; cv=none;\n b=nnRRrM5VE4QqN+5mLelSdoD2VsCPDvTfMfY710MunPXcWTkbpGXIQxC/BFYHF2c5dnjnowXAHKfWFg4pz0VJCDwyhQ5nMwdJZ4skUDFiJlOcaNuz5z1kqlae7sgVhnlv+xcUUYdRRLwPzvpsTAtbKyhqcoWK8DPMJwN9HxMLDRg=", "ARC-Message-Signature": "i=1; a=rsa-sha256; d=subspace.kernel.org;\n\ts=arc-20240116; t=1775060748; c=relaxed/simple;\n\tbh=Jpv6RTniVBvt70szPgYAv0JGed4nVUgLqx8NINTIpxI=;\n\th=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=chId1zpxmrRyVY9zebePz1440LWdjxTKwr50OxqP0kwNHKnaVCxNcMHJHaw3+6neF80o3BfhbQkUywyQrU5Q8uk4c2sEbSPVVl4XWNGO3DYbe6aXfuFLx5//eV7aV4oKvAZ6c7HbQhPGV2eCo7PoDQfUIw/H5pJF3UaLOb9gPbw=", "ARC-Authentication-Results": "i=1; smtp.subspace.kernel.org;\n dmarc=none (p=none dis=none) header.from=pengutronix.de;\n spf=pass smtp.mailfrom=pengutronix.de; arc=none smtp.client-ip=185.203.201.7", "From": "Oleksij Rempel <o.rempel@pengutronix.de>", "To": "Guenter Roeck <linux@roeck-us.net>,\n\tRob Herring <robh@kernel.org>,\n\tKrzysztof Kozlowski <krzk+dt@kernel.org>,\n\tConor Dooley <conor+dt@kernel.org>,\n\tLee Jones <lee@kernel.org>,\n\tPeter Rosin <peda@axentia.se>,\n\tLinus Walleij <linusw@kernel.org>", "Cc": "Oleksij Rempel <o.rempel@pengutronix.de>,\n\tkernel@pengutronix.de,\n\tlinux-kernel@vger.kernel.org,\n\tdevicetree@vger.kernel.org,\n\tlinux-hwmon@vger.kernel.org,\n\tlinux-gpio@vger.kernel.org,\n\tDavid Jander <david@protonic.nl>", "Subject": "[PATCH v10 0/6] mfd: Add support for NXP MC33978/MC34978 MSDI", "Date": "Wed, 1 Apr 2026 18:25:04 +0200", "Message-ID": "<20260401162510.1706073-1-o.rempel@pengutronix.de>", "X-Mailer": "git-send-email 2.47.3", "Precedence": "bulk", "X-Mailing-List": "linux-gpio@vger.kernel.org", "List-Id": "<linux-gpio.vger.kernel.org>", "List-Subscribe": "<mailto:linux-gpio+subscribe@vger.kernel.org>", "List-Unsubscribe": "<mailto:linux-gpio+unsubscribe@vger.kernel.org>", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-SA-Exim-Connect-IP": "2a0a:edc0:0:c01:1d::a2", "X-SA-Exim-Mail-From": "ore@pengutronix.de", "X-SA-Exim-Scanned": "No (on metis.whiteo.stw.pengutronix.de);\n SAEximRunCond expanded to false", "X-PTX-Original-Recipient": "linux-gpio@vger.kernel.org" }, "content": "changes v7:\n- drop gpiolib irq fix and make pinctrl more robust against NULL point\n dereference.\n\nThis series adds support for the NXP MC33978/MC34978 Multiple Switch Detection\nInterface (MSDI) via the MFD framework.\n\nArchitecture overview:\n* mfd: Core driver handling 2-frame pipelined SPI, regulator sequencing, and\n linear irq_domain. Harvests status bits from SPI MISO MSB.\n* pinctrl: Exposes 22 physical switch inputs as standard GPIOs. Proxies IRQs to\n the MFD domain.\n* hwmon: Exposes thermal limits, VBATP/VDDQ voltage boundaries, and dynamic\n fault alarms.\n* mux: Controls the 24-to-1 AMUX routing analog signals (switch voltages,\n temperature, VBATP) to an external ADC.\n\nInitial pinctrl implementation by David Jander, reworked into this MFD\narchitecture.\n\nBest regards,\nOleksij\n\nDavid Jander (1):\n pinctrl: add NXP MC33978/MC34978 pinctrl driver\n\nOleksij Rempel (5):\n dt-bindings: pinctrl: add NXP MC33978/MC34978 MSDI\n mfd: add NXP MC33978/MC34978 core driver\n pinctrl: core: Make pin group callbacks optional for pin-only drivers\n hwmon: add NXP MC33978/MC34978 driver\n mux: add NXP MC33978/MC34978 AMUX driver\n\n .../bindings/pinctrl/nxp,mc33978.yaml | 158 +++\n drivers/hwmon/Kconfig | 10 +\n drivers/hwmon/Makefile | 1 +\n drivers/hwmon/mc33978-hwmon.c | 549 +++++++++\n drivers/mfd/Kconfig | 15 +\n drivers/mfd/Makefile | 2 +\n drivers/mfd/mc33978.c | 1079 +++++++++++++++++\n drivers/mux/Kconfig | 14 +\n drivers/mux/Makefile | 2 +\n drivers/mux/mc33978-mux.c | 141 +++\n drivers/pinctrl/Kconfig | 16 +\n drivers/pinctrl/Makefile | 1 +\n drivers/pinctrl/core.c | 41 +-\n drivers/pinctrl/pinconf.c | 9 +-\n drivers/pinctrl/pinctrl-mc33978.c | 1008 +++++++++++++++\n include/linux/mfd/mc33978.h | 95 ++\n 16 files changed, 3134 insertions(+), 7 deletions(-)\n create mode 100644 Documentation/devicetree/bindings/pinctrl/nxp,mc33978.yaml\n create mode 100644 drivers/hwmon/mc33978-hwmon.c\n create mode 100644 drivers/mfd/mc33978.c\n create mode 100644 drivers/mux/mc33978-mux.c\n create mode 100644 drivers/pinctrl/pinctrl-mc33978.c\n create mode 100644 include/linux/mfd/mc33978.h\n\n--\n2.47.3" }