{"id":2218930,"url":"http://patchwork.ozlabs.org/api/1.0/covers/2218930/?format=json","project":{"id":42,"url":"http://patchwork.ozlabs.org/api/1.0/projects/42/?format=json","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":"<20260402051442.1426672-1-a0282524688@gmail.com>","date":"2026-04-02T05:14:40","name":"[v1,0/2] mfd: nct6694: Refactor transport layer and add HIF (eSPI) support","submitter":{"id":89578,"url":"http://patchwork.ozlabs.org/api/1.0/people/89578/?format=json","name":"Ming Yu","email":"a0282524688@gmail.com"},"series":[{"id":498427,"url":"http://patchwork.ozlabs.org/api/1.0/series/498427/?format=json","date":"2026-04-02T05:14:41","name":"mfd: nct6694: Refactor transport layer and add HIF (eSPI) support","version":1,"mbox":"http://patchwork.ozlabs.org/series/498427/mbox/"}],"headers":{"Return-Path":"\n ","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\tdkim=pass (2048-bit key;\n unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256\n header.s=20251104 header.b=aexidzYF;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org\n (client-ip=2600:3c04:e001:36c::12fc:5321; helo=tor.lore.kernel.org;\n envelope-from=linux-gpio+bounces-34573-incoming=patchwork.ozlabs.org@vger.kernel.org;\n receiver=patchwork.ozlabs.org)","smtp.subspace.kernel.org;\n\tdkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com\n header.b=\"aexidzYF\"","smtp.subspace.kernel.org;\n arc=none smtp.client-ip=209.85.216.48","smtp.subspace.kernel.org;\n dmarc=pass (p=none dis=none) header.from=gmail.com","smtp.subspace.kernel.org;\n spf=pass smtp.mailfrom=gmail.com"],"Received":["from tor.lore.kernel.org (tor.lore.kernel.org\n [IPv6:2600:3c04:e001:36c::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 4fmVTt4r1Kz1yGH\n\tfor ; Thu, 02 Apr 2026 16:17:22 +1100 (AEDT)","from smtp.subspace.kernel.org (conduit.subspace.kernel.org\n [100.90.174.1])\n\tby tor.lore.kernel.org (Postfix) with ESMTP id BB88B305B494\n\tfor ; Thu, 2 Apr 2026 05:15:42 +0000 (UTC)","from localhost.localdomain (localhost.localdomain [127.0.0.1])\n\tby smtp.subspace.kernel.org (Postfix) with ESMTP id 6B36F370D75;\n\tThu, 2 Apr 2026 05:15:36 +0000 (UTC)","from mail-pj1-f48.google.com (mail-pj1-f48.google.com\n [209.85.216.48])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))\n\t(No client certificate requested)\n\tby smtp.subspace.kernel.org (Postfix) with ESMTPS id 73FE536D9FE\n\tfor ; Thu, 2 Apr 2026 05:15:34 +0000 (UTC)","by mail-pj1-f48.google.com with SMTP id\n 98e67ed59e1d1-35da2d35eccso263048a91.0\n for ;\n Wed, 01 Apr 2026 22:15:34 -0700 (PDT)","from hcdev-d520mt2.. 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Currently, the\ndriver only supports USB as the host transport interface.\n\nThis series refactors the NCT6694 MFD core to support multiple transport\nbackends and adds a new Host Interface (HIF) transport driver that\ncommunicates over eSPI using Super-I/O shared memory.\n\nMing Yu (2):\n mfd: nct6694: Switch to devm_mfd_add_devices() and drop IDA\n mfd: Add Host Interface (HIF) support for Nuvoton NCT6694\n\n MAINTAINERS | 1 +\n drivers/gpio/gpio-nct6694.c | 26 +-\n drivers/hwmon/nct6694-hwmon.c | 21 -\n drivers/i2c/busses/i2c-nct6694.c | 26 +-\n drivers/mfd/Kconfig | 47 +-\n drivers/mfd/Makefile | 3 +-\n drivers/mfd/nct6694-hif.c | 649 ++++++++++++++++++++++++++++\n drivers/mfd/nct6694.c | 180 ++++----\n drivers/net/can/usb/nct6694_canfd.c | 18 +-\n drivers/rtc/rtc-nct6694.c | 7 -\n drivers/watchdog/nct6694_wdt.c | 27 +-\n include/linux/mfd/nct6694.h | 57 ++-\n 12 files changed, 829 insertions(+), 233 deletions(-)\n create mode 100644 drivers/mfd/nct6694-hif.c"}