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 3258CC433FE for ; Wed, 9 Nov 2022 00:26:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229560AbiKIA06 (ORCPT ); Tue, 8 Nov 2022 19:26:58 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59980 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbiKIA05 (ORCPT ); Tue, 8 Nov 2022 19:26:57 -0500 Received: from mail-pg1-x533.google.com (mail-pg1-x533.google.com [IPv6:2607:f8b0:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 396B122B09; Tue, 8 Nov 2022 16:26:56 -0800 (PST) Received: by mail-pg1-x533.google.com with SMTP id h193so14781016pgc.10; Tue, 08 Nov 2022 16:26:56 -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=rd9e65C2L1MaGoFoYCg3309gq69yAsyo4bc99h0REBg=; b=WQBHB3EEgLGD0Peb3Dhu47EhbgvWkkxuf1lWtGGP8WDJf1zJ+j7532pEa8XkD3Br0a tFURJP63+WH0aCBjMN2xh0aladptn8+OXNq2wozfp4tJnVvDCTYeKNCIZKjHumK6R+xG 3ogLAn2pZzFxj60wVZBR3LbSs7xT0sb2sC+Y3+Scf/soJCBgPfgr8lTM/CLb2ygFhWdi mx7sYiKtVmO57xiA5zPghz+dqHEqdk6J5TB9enRv0XjEI4ylO9Bw6IMylrZHal3noXTi sJm2WbZavHoH1XCuSr7juxktPPoDRKO/WUnauXua9sNAzDO+BstlgVWpSavU03zR/KlY ndsw== 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=rd9e65C2L1MaGoFoYCg3309gq69yAsyo4bc99h0REBg=; b=4gE3GA4bmQwZFF72AWtiOW26rdF8YLHKm86OYiLNPcbSYkZ/xsLYJMoUsSqF6NXhjw 4eF/gxwXURiyX7cnVzSm09s6Dy3sHGSXlnhCfFlV7xCfksqWO8LKFyaaivZivVJ6+bQZ QnG3319blQRvj4bF1sMDJpbJasPA7hROU0A5Id3B91sOslfP3kq7eHGwP8d9kSmd+PbC JNILUKaiOeFUay+mV6uZh6kkHNT7z3MpkAsyRWGJGHDmsR6UaOBuc8zvOjOx6p0QtGqB VK5YJVThSUQ1nZFMkI5KpGA+hQ3ft6WolvzMVJWuH1Q4yafpTPeaFWioxLvYzGldgbOV 8ylA== X-Gm-Message-State: ACrzQf1zKGga6HzXt82ry67DjM0JqBPgXlQMjsOAdpbU6AQyrhbk8KTw Bf8FKiPXBmM8WOwjMaFFDPI= X-Google-Smtp-Source: AMsMyM6Otpg0/E8uz/jT/dsjwExFbpKYWzWZzV86jIj5kCV7qSDIXiqfisx61m+Uq69f7bKJUY0KLA== X-Received: by 2002:a05:6a00:1504:b0:56d:1ee8:973e with SMTP id q4-20020a056a00150400b0056d1ee8973emr36325685pfu.30.1667953615481; Tue, 08 Nov 2022 16:26:55 -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 i65-20020a626d44000000b0056bd737fdf3sm6907324pfc.123.2022.11.08.16.26.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Nov 2022 16:26:54 -0800 (PST) From: Dmitry Torokhov To: Linus Walleij , Andy Shevchenko , Bartosz Golaszewski Cc: linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/6] Add support for software nodes to gpiolib Date: Tue, 8 Nov 2022 16:26:45 -0800 Message-Id: <20221031-gpiolib-swnode-v2-0-81f55af5fa0e@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-acpi@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 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 | 128 ++++++++++++++++++++++++=0D drivers/gpio/gpiolib-swnode.h | 14 +++=0D drivers/gpio/gpiolib.c | 219 +++++++++++++++++---------------------= ----=0D include/linux/gpio/property.h | 11 +++=0D 9 files changed, 329 insertions(+), 241 deletions(-)=0D ---=0D base-commit: b6fc3fddade7a194bd141a49f2689e50f796ef46=0D change-id: 20221031-gpiolib-swnode-948203f49b23=0D =0D -- =0D Dmitry=0D =0D