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 57EF9C4332F for ; Wed, 9 Nov 2022 19:30:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229578AbiKITav (ORCPT ); Wed, 9 Nov 2022 14:30:51 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33946 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229551AbiKITau (ORCPT ); Wed, 9 Nov 2022 14:30:50 -0500 Received: from mail-pj1-x1030.google.com (mail-pj1-x1030.google.com [IPv6:2607:f8b0:4864:20::1030]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1775926558; Wed, 9 Nov 2022 11:30:49 -0800 (PST) Received: by mail-pj1-x1030.google.com with SMTP id l6so17676969pjj.0; Wed, 09 Nov 2022 11:30:49 -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=Lnle8lMV56XQau4jCvU7SPGxEKG97XKxs8od3dMkLCg=; b=DQGYIMyN6k+qRFSIQdQrSA7Fxg32QuZXoUzGz4iaueCclRKOjcztwpQsBBRReaah3r 6B2r7RbW5+cFnlfiZ2hhFVHtbk96NVP5cGMm54/wz8KEW+f3FGoDImOLMtOOL5Fc8b21 15eg5pmOteR++0WTIJmWhvzf3YX0l6LVWD6cEZKNO8/3U4dGkEFpyQs8nu0hurptIG2P HRnDi5fwAYl7o5lyb/kXcIv3XSkEZFqcJbCk0reQLXwYvYzwETAmqEE7JhAmwDs8NXwC /tj96wu9SpQy7wh5i9IoCQDf8HDeL7QOYJdVmLZaBb6DFmAxmS9CjAIU0w1EZWHWBJqJ bG+A== 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=Lnle8lMV56XQau4jCvU7SPGxEKG97XKxs8od3dMkLCg=; b=fEPZUAtPa9LFPVW102CS8Kl23BWz96orUUp1WcD2FopmG5I0ZM7fMb1aWBolC3utcW ZIMB3212q3k6BBN7J7CLMwV9bBOAJPzBnYCv94yHySncBpLNtBwSrQas0bk/dtRGgvfJ 1/LZ0xp7WUsHt/dAia0g64gNX8nDkzt37N/NUFRzidxRtl2zxzIAZN9dnn3Gkqpw1Kv0 ZcsjLjgqbFQRwYAAVGtnFbz0+KY6nn+PNK8vxCfc3IrZ/PjZjRnjgJDA0xynUo88MPMB Fc43ADdHPZj56qnrLhkWRHx2zZyDbDcB3PDHW+grdkp87gLAPJAfj78GsMOQlMfKQrCa ZglA== X-Gm-Message-State: ACrzQf3StDiVmpP9b4x9he4WvUYynJQLDs3CLc1Aje4/53GCym/azrIu Y5nb8huAI9weMHJIPiaL2Os= X-Google-Smtp-Source: AMsMyM7DJdU+TvsxX46ZY2ZEetPtW7U6l3W9hejmCFjFzrC44et5WLIKh21yjZ31aFU5hNJy8dVSHQ== X-Received: by 2002:a17:902:9b88:b0:188:620d:90fc with SMTP id y8-20020a1709029b8800b00188620d90fcmr32387279plp.61.1668022248374; Wed, 09 Nov 2022 11:30:48 -0800 (PST) Received: from dtor-ws.mtv.corp.google.com ([2620:15c:9d:2:9f46:7242:26:f220]) by smtp.gmail.com with ESMTPSA id l2-20020a170902f68200b00186ac4b21cfsm9567462plg.230.2022.11.09.11.30.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 09 Nov 2022 11:30:47 -0800 (PST) From: Dmitry Torokhov To: Linus Walleij , Andy Shevchenko , Bartosz Golaszewski Cc: linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH v3 0/6] Add support for software nodes to gpiolib Date: Wed, 9 Nov 2022 11:30:38 -0800 Message-Id: <20221031-gpiolib-swnode-v3-0-0282162b0fa4@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-gpio@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 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: b6fc3fddade7a194bd141a49f2689e50f796ef46=0D change-id: 20221031-gpiolib-swnode-948203f49b23=0D =0D -- =0D Dmitry=0D =0D