From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DF727C43219 for ; Fri, 11 Nov 2022 22:19:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234494AbiKKWTg (ORCPT ); Fri, 11 Nov 2022 17:19:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234608AbiKKWTU (ORCPT ); Fri, 11 Nov 2022 17:19:20 -0500 Received: from mail-pf1-x430.google.com (mail-pf1-x430.google.com [IPv6:2607:f8b0:4864:20::430]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3001F5FD2; Fri, 11 Nov 2022 14:19:13 -0800 (PST) Received: by mail-pf1-x430.google.com with SMTP id k15so6019431pfg.2; Fri, 11 Nov 2022 14:19:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=qpOJ3rVA6/X/I77P5ZYNEkOM6gDrKnPiFfbCrZsQZMA=; b=XE6EYDIOkSdUYCCkxzHig/4KE/tiDWG4nsgOB2EDTcVmrCrTie510lmRWzfa0kISyz 3bVIXO8ps4aJODpuCy6rhvMiD2jTbn6JmGtjlG/mJGw55ieWX6wObKsXxoTX5s/uSknu T6PFeVnEriM6jgc9x16ugI4uDuuittNi8fz6UFBnI3D43Fmh0Rf/r2SMYnBghX42kzXg 9nM+FzdhzA/Ojtav6NC7n59CXYm2uR/TVSNjRBRF7oDx2e3OTns8t9qz4CkrLyeaQVug kqk6TuQ1JNFzeVfOgYCcwegj/vT74SG4LuRTfxGM4Dv9Vw8sEwQKsiJCQ44hlBKxaVUF G7YA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=qpOJ3rVA6/X/I77P5ZYNEkOM6gDrKnPiFfbCrZsQZMA=; b=4rGUwo0rK7TPgvPoYrP5yTZgsLSjgi0FkUt5yGlKDefctY7ThQcuwvNukU0LlSebAu DlD8LDJZu0ZNwa+WSrvT1zradbeQo75KiG2h22mcCg8mkf8g0qae+J1SdreNtX7nsvtC 2sbyx1xV5D/5CyO3xDW1Yoo4urwElp2RqYI1AJASIQ1c8iLShPaFkMSYEMwkQ5OTDvio rvPaTLH9WHE1iFzfKq0SkQnsUP7ZNXHXWTp9YEvHesMn4+SmBlcwed26gvUtTSvNAp2t SAvuDR7sGQlzI6a4PFNR7hzQg/OmuQZlAUbXmxkZHi96xhlrE0bW1Kb5m7leYqZ+X6Ab Bb6A== X-Gm-Message-State: ANoB5pmPaOdI/tayKx0HjFtgdqcQlK+BaMb3QXhHjEakKHBPtL8h4lJQ khzeL93ZD66Lt7b54XDWU/U= X-Google-Smtp-Source: AA0mqf5FbHSSuKQXc103+x9LY5avOvdjIamoZrDgVoWi41Dax+7GKRM3/IL3tz+xbYezWfj39Vx/hA== X-Received: by 2002:a63:fd41:0:b0:470:71df:7ec5 with SMTP id m1-20020a63fd41000000b0047071df7ec5mr3396016pgj.272.1668205152501; Fri, 11 Nov 2022 14:19:12 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:9d:2:de05:ad1e:65ae:ea4d]) by smtp.gmail.com with ESMTPSA id q9-20020a170902bd8900b00180daa59314sm2201109pls.125.2022.11.11.14.19.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Nov 2022 14:19:11 -0800 (PST) From: Dmitry Torokhov To: Bartosz Golaszewski , Andy Shevchenko , Linus Walleij Cc: linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org Subject: [PATCH v4 0/6] Add support for software nodes to gpiolib Date: Fri, 11 Nov 2022 14:19:02 -0800 Message-Id: <20221031-gpiolib-swnode-v4-0-6c1671890027@gmail.com> X-Mailer: git-send-email 2.38.1.431.g37b22c650d-goog MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.11.0-dev-28747 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This series attempts to add support for software nodes to gpiolib, using=0D software node references. This allows us to convert more drivers to the=0D generic device properties and drop support for custom platform data.=0D =0D To describe a GPIO via software nodes we can create the following data=0D items:=0D =0D /* Node representing the GPIO controller/GPIO bank */=0D static const struct software_node gpio_bank_b_node =3D {=0D .name =3D "B",=0D };=0D =0D /*=0D * Properties that will be assigned to a software node assigned to=0D * the device that used platform data.=0D */=0D static const struct property_entry simone_key_enter_props[] =3D {=0D PROPERTY_ENTRY_U32("linux,code", KEY_ENTER),=0D PROPERTY_ENTRY_STRING("label", "enter"),=0D PROPERTY_ENTRY_REF("gpios", &gpio_bank_b_node, 123, GPIO_ACTIVE_LOW= ),=0D { }=0D };=0D =0D The code in gpiolib handling software nodes uses the name in the=0D software node representing GPIO controller to locate the actual instance=0D of GPIO controller.=0D =0D To: Linus Walleij =0D To: Bartosz Golaszewski =0D To: Andy Shevchenko =0D Cc: linux-gpio@vger.kernel.org=0D Cc: linux-kernel@vger.kernel.org=0D Cc: linux-acpi@vger.kernel.org=0D =0D ---=0D Changes in v4:=0D - Rebased on top of next-20221111=0D - Added Andy's reviewed-by for patch #6=0D - Link to v3: https://lore.kernel.org/r/20221031-gpiolib-swnode-v3-0-028216= 2b0fa4@gmail.com=0D =0D Changes in v3:=0D - Addressed more Andy's comments=0D - Link to v2: https://lore.kernel.org/r/20221031-gpiolib-swnode-v2-0-81f55a= f5fa0e@gmail.com=0D =0D Changes in v2:=0D - reworked the series to be independent of other in-flight patches.=0D That meant keeping devm_gpiod_get_from_of_node() for now.=0D - removed handling of secondary nodes, it deserves a separate patch=0D series=0D - fixed refcounting when handling swnodes (Andy)=0D - added include/linux/gpio/property.h with PROPERTY_ENTRY_GPIO (Andy)=0D - addressed most of the rest of Andy's comments=0D - collected reviewed-by and acked-by=0D - Link to v1: https://lore.kernel.org/r/20221031-gpiolib-swnode-v1-0-a0ab48= d229c7@gmail.com=0D =0D ---=0D Dmitry Torokhov (6):=0D gpiolib: of: change of_find_gpio() to accept device node=0D gpiolib: acpi: change acpi_find_gpio() to accept firmware node=0D gpiolib: acpi: teach acpi_find_gpio() to handle data-only nodes=0D gpiolib: acpi: avoid leaking ACPI details into upper gpiolib layers=0D gpiolib: consolidate GPIO lookups=0D gpiolib: add support for software nodes=0D =0D drivers/gpio/Makefile | 1 +=0D drivers/gpio/gpiolib-acpi.c | 132 +++++++++++++++-----------=0D drivers/gpio/gpiolib-acpi.h | 54 +----------=0D drivers/gpio/gpiolib-of.c | 7 +-=0D drivers/gpio/gpiolib-of.h | 4 +-=0D drivers/gpio/gpiolib-swnode.c | 123 +++++++++++++++++++++++++=0D drivers/gpio/gpiolib-swnode.h | 14 +++=0D drivers/gpio/gpiolib.c | 209 ++++++++++++++++----------------------= ----=0D include/linux/gpio/property.h | 11 +++=0D 9 files changed, 315 insertions(+), 240 deletions(-)=0D ---=0D base-commit: f8f60f322f0640c8edda2942ca5f84b7a27c417a=0D change-id: 20221031-gpiolib-swnode-948203f49b23=0D =0D -- =0D Dmitry=0D =0D