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[2620:137:e000::1:20]) by mx.google.com with ESMTP id o7-20020a17090608c700b00791a67e4c00si12605109eje.835.2022.11.09.07.08.18; Wed, 09 Nov 2022 07:08:43 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=Dx3fWmbC; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231867AbiKIPHD (ORCPT + 99 others); Wed, 9 Nov 2022 10:07:03 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43510 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231758AbiKIPG4 (ORCPT ); Wed, 9 Nov 2022 10:06:56 -0500 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5AD301A810; Wed, 9 Nov 2022 07:06:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1668006415; x=1699542415; h=from:to:cc:subject:date:message-id:mime-version: content-transfer-encoding; bh=vkdjifLpDIz2k79GbiPxj/nDQjo5PWlLax+xg6MpmuQ=; b=Dx3fWmbC83bjOofNg7hcMScn6sDLjHaojN+vk7xw31mLB0rJVrSSQWOG IE4cGnA46O+Sc2hQ3MHOR2o7x4B3YwydzJlX1RYEWRCAWOxzP6MeFvQtI YygVFSozW4h0ZOWRpTsVxEWY2UDMOt1OkYjopkBHOIZafvjR14iHF8KEG aCzo/zbjmYDidEODMSnOP+jUSBB3DKrdM0/+oF0aRKL8k9OtgE1ZQtnkZ gtdJdVMssfnXB1gnfXOj9sbqnusY41Md6ra1iHVAuv6V/dVoBzkLyr78n sN2QS5FjAfoAK96JmDvDUV3WXUbGUj/LvVENAOZ1m8HbOx5LdNB5+rED3 Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="291386812" X-IronPort-AV: E=Sophos;i="5.96,150,1665471600"; d="scan'208";a="291386812" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2022 07:06:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="705736758" X-IronPort-AV: E=Sophos;i="5.96,150,1665471600"; d="scan'208";a="705736758" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga004.fm.intel.com with ESMTP; 09 Nov 2022 07:06:45 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 4AF91155; Wed, 9 Nov 2022 17:07:09 +0200 (EET) From: Andy Shevchenko To: Andy Shevchenko , Raul E Rangel , Bartosz Golaszewski , Dmitry Torokhov , linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Linus Walleij Subject: [PATCH v1 1/2] gpiolib: of: Drop redundant check in of_mm_gpiochip_remove() Date: Wed, 9 Nov 2022 17:07:05 +0200 Message-Id: <20221109150706.38823-1-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 MIME-Version: 1.0 X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749031607964913974?= X-GMAIL-MSGID: =?utf-8?q?1749031607964913974?= The callers never call the function with invalid pointer. Moreover, compiler quite likely dropped that check anyway because we use that pointer before the check. Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-of.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index feeb9e8e846d..83997434215e 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -963,9 +963,6 @@ void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc) { struct gpio_chip *gc = &mm_gc->gc; - if (!mm_gc) - return; - gpiochip_remove(gc); iounmap(mm_gc->regs); kfree(gc->label); From patchwork Wed Nov 9 15:07:06 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andy Shevchenko X-Patchwork-Id: 17633 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:6687:0:0:0:0:0 with SMTP id l7csp387431wru; Wed, 9 Nov 2022 07:09:29 -0800 (PST) X-Google-Smtp-Source: AMsMyM4a+Lzc8gng+HrNKGSjz/bt3JTqZCZV+6OO10kJbrahO/LR5QLd74V5R9PhVPU0gjlcqhgc X-Received: by 2002:a17:906:6898:b0:7ae:2ae6:f57e with SMTP id n24-20020a170906689800b007ae2ae6f57emr28029745ejr.126.1668006569455; Wed, 09 Nov 2022 07:09:29 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1668006569; cv=none; d=google.com; s=arc-20160816; b=ElOYKOKQWUFm0T6Un2vN6gswxhHPM8eSBfgqxBHMdxRv9Yj7gcglYLtgngh7fWHW9S z7ddcrRqvmGSeb4hqiZMZTf4R5OlDIApi7F97cuCafgb0OdgP8a0L5fhGuFPjtYtP2+L kR4XmeMClQb2mXL14tpFjR7rsjINsJaSlcBuIM5MBHFVR1nCYLvMfKNtRmhWsnRS/bkX pUcDevl4qbqGikmLnu8VFFZw+s2346a7soSja4lurwasYsKxOORYKqs9Gjw0Z9Ghve8q v8O/mVGWkRuWwGETV4p3uij/MKVRsFumU4+7fV0YXN+Ah5CfrjEF04zzqvbETUNBoFH8 DAYw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature; bh=Z3y3uUX3whxrPbHnByfzQwm/NNBLm9chaMJ4FG5vC/k=; b=wXFon3PRuFu+oZi0MXi56/9QJ2gBeFKWKN2RyTO4R3Xhtgza3oHpAKLxUs3Ynl5MEO Vjpi2bApy1DCeruJEYKgt2GXX3RQnhIdw7Nahy1KaV6Y7W49vb8dRnsahBo8lDwwSjhW kQZLKwXkLVqpJRyNHzu6+7dXMtZqGGgmIA8V02juVMWHHQ65Ne+cZBl+0JhBB9fr7CNY oO0nbP3K65fRFfl2mEixtNcQ/HAyTtO2Kk6RQTumYvjpW/P6IyxeAR2aorVYDoB5LKkn wXliyJXHq5WmE6ZwhO00dcgHK/viJ+N+rQgT3ZFUgDi9WrpjDirVyR7dJY0D4Gp9ztbk B5+A== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=EyqZA2bn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id hv16-20020a17090760d000b0078e2d2d1a67si15075229ejc.344.2022.11.09.07.09.06; Wed, 09 Nov 2022 07:09:29 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=EyqZA2bn; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231875AbiKIPHG (ORCPT + 99 others); Wed, 9 Nov 2022 10:07:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231853AbiKIPG5 (ORCPT ); Wed, 9 Nov 2022 10:06:57 -0500 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 43A7D1B78D; Wed, 9 Nov 2022 07:06:56 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1668006416; x=1699542416; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=jnMjN8XmUSOuY+JXUltcu3YHJQPqbKKPegrVVmr9mi8=; b=EyqZA2bn44370ieycqKyFo21IPAyXc23H4jtGEbJ2e8ANRUOfEyxat/W hg0bD8R89ZK8ABxYLbxRDd+KFUca04/BKV/4wgZCj3Htaj6RgAzuywxyn GJr1oPQbTGKt/s810uKw3wcMhHfGhiX5mI9ohbMzS/so8TPTOF148m/Fh DARzEJUKoazDGqHgcOLettbmcDjwGBhBkJf8ljadi0zGagM2HOwKKUKv4 ncCN028gQssthgRc1ZxpdO4JP/36iKmjNW8knLcjCOQ3IcyaKkejj6frl g+/wP9nsNaAU0uHmEPXnUZxdroEFL+K2vTax7e0EzF59DNKxGcMrHFFeo Q==; X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="291386814" X-IronPort-AV: E=Sophos;i="5.96,150,1665471600"; d="scan'208";a="291386814" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Nov 2022 07:06:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6500,9779,10526"; a="705736770" X-IronPort-AV: E=Sophos;i="5.96,150,1665471600"; d="scan'208";a="705736770" Received: from black.fi.intel.com ([10.237.72.28]) by fmsmga004.fm.intel.com with ESMTP; 09 Nov 2022 07:06:46 -0800 Received: by black.fi.intel.com (Postfix, from userid 1003) id 401E315C; Wed, 9 Nov 2022 17:07:10 +0200 (EET) From: Andy Shevchenko To: Andy Shevchenko , Raul E Rangel , Bartosz Golaszewski , Dmitry Torokhov , linux-gpio@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Mika Westerberg , Linus Walleij Subject: [PATCH v1 2/2] gpiolib: Get rid of not used of_node member Date: Wed, 9 Nov 2022 17:07:06 +0200 Message-Id: <20221109150706.38823-2-andriy.shevchenko@linux.intel.com> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221109150706.38823-1-andriy.shevchenko@linux.intel.com> References: <20221109150706.38823-1-andriy.shevchenko@linux.intel.com> MIME-Version: 1.0 X-Spam-Status: No, score=-4.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF,RCVD_IN_DNSWL_MED,SPF_HELO_NONE, SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1749031656469526696?= X-GMAIL-MSGID: =?utf-8?q?1749031656469526696?= All new drivers should use fwnode and / or parent to provide the necessary information to the GPIO library. Signed-off-by: Andy Shevchenko --- drivers/gpio/gpiolib-acpi.c | 10 ---------- drivers/gpio/gpiolib-acpi.h | 4 ---- drivers/gpio/gpiolib-of.c | 22 +++------------------- drivers/gpio/gpiolib-of.h | 5 ----- drivers/gpio/gpiolib.c | 15 +-------------- include/linux/gpio/driver.h | 7 ------- 6 files changed, 4 insertions(+), 59 deletions(-) diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c index a7d2358736fe..5c6ebb249863 100644 --- a/drivers/gpio/gpiolib-acpi.c +++ b/drivers/gpio/gpiolib-acpi.c @@ -1363,16 +1363,6 @@ void acpi_gpiochip_remove(struct gpio_chip *chip) kfree(acpi_gpio); } -void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) -{ - /* Set default fwnode to parent's one if present */ - if (gc->parent) - ACPI_COMPANION_SET(&gdev->dev, ACPI_COMPANION(gc->parent)); - - if (gc->fwnode) - device_set_node(&gdev->dev, gc->fwnode); -} - static int acpi_gpio_package_count(const union acpi_object *obj) { const union acpi_object *element = obj->package.elements; diff --git a/drivers/gpio/gpiolib-acpi.h b/drivers/gpio/gpiolib-acpi.h index 1ac6816839db..a15495ef19ea 100644 --- a/drivers/gpio/gpiolib-acpi.h +++ b/drivers/gpio/gpiolib-acpi.h @@ -38,8 +38,6 @@ struct acpi_gpio_info { void acpi_gpiochip_add(struct gpio_chip *chip); void acpi_gpiochip_remove(struct gpio_chip *chip); -void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev); - void acpi_gpiochip_request_interrupts(struct gpio_chip *chip); void acpi_gpiochip_free_interrupts(struct gpio_chip *chip); @@ -62,8 +60,6 @@ int acpi_gpio_count(struct device *dev, const char *con_id); static inline void acpi_gpiochip_add(struct gpio_chip *chip) { } static inline void acpi_gpiochip_remove(struct gpio_chip *chip) { } -static inline void acpi_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) { } - static inline void acpi_gpiochip_request_interrupts(struct gpio_chip *chip) { } diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c index 83997434215e..e22d25d85c7e 100644 --- a/drivers/gpio/gpiolib-of.c +++ b/drivers/gpio/gpiolib-of.c @@ -669,7 +669,7 @@ static struct gpio_desc *of_parse_own_gpio(struct device_node *np, u32 tmp; int ret; - chip_np = chip->of_node; + chip_np = to_of_node(chip->fwnode); if (!chip_np) return ERR_PTR(-EINVAL); @@ -761,7 +761,7 @@ static int of_gpiochip_scan_gpios(struct gpio_chip *chip) struct device_node *np; int ret; - for_each_available_child_of_node(chip->of_node, np) { + for_each_available_child_of_node(to_of_node(chip->fwnode), np) { if (!of_property_read_bool(np, "gpio-hog")) continue; @@ -972,7 +972,7 @@ EXPORT_SYMBOL_GPL(of_mm_gpiochip_remove); #ifdef CONFIG_PINCTRL static int of_gpiochip_add_pin_range(struct gpio_chip *chip) { - struct device_node *np = chip->of_node; + struct device_node *np = to_of_node(chip->fwnode); struct of_phandle_args pinspec; struct pinctrl_dev *pctldev; int index = 0, ret; @@ -1094,19 +1094,3 @@ void of_gpiochip_remove(struct gpio_chip *chip) { fwnode_handle_put(chip->fwnode); } - -void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev) -{ - /* Set default OF node to parent's one if present */ - if (gc->parent) - gdev->dev.of_node = gc->parent->of_node; - - if (gc->fwnode) - gc->of_node = to_of_node(gc->fwnode); - - /* If the gpiochip has an assigned OF node this takes precedence */ - if (gc->of_node) - gdev->dev.of_node = gc->of_node; - else - gc->of_node = gdev->dev.of_node; -} diff --git a/drivers/gpio/gpiolib-of.h b/drivers/gpio/gpiolib-of.h index 2c32a332ede5..f128a7f45945 100644 --- a/drivers/gpio/gpiolib-of.h +++ b/drivers/gpio/gpiolib-of.h @@ -14,7 +14,6 @@ struct gpio_desc *of_find_gpio(struct device *dev, int of_gpiochip_add(struct gpio_chip *gc); void of_gpiochip_remove(struct gpio_chip *gc); int of_gpio_get_count(struct device *dev, const char *con_id); -void of_gpio_dev_init(struct gpio_chip *gc, struct gpio_device *gdev); #else static inline struct gpio_desc *of_find_gpio(struct device *dev, const char *con_id, @@ -29,10 +28,6 @@ static inline int of_gpio_get_count(struct device *dev, const char *con_id) { return 0; } -static inline void of_gpio_dev_init(struct gpio_chip *gc, - struct gpio_device *gdev) -{ -} #endif /* CONFIG_OF_GPIO */ extern struct notifier_block gpio_of_notifier; diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c index 11fb7ec883e9..4032fbb6994c 100644 --- a/drivers/gpio/gpiolib.c +++ b/drivers/gpio/gpiolib.c @@ -646,7 +646,6 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, struct lock_class_key *lock_key, struct lock_class_key *request_key) { - struct fwnode_handle *fwnode = NULL; struct gpio_device *gdev; unsigned long flags; int base = gc->base; @@ -654,11 +653,6 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, int ret = 0; u32 ngpios; - if (gc->fwnode) - fwnode = gc->fwnode; - else if (gc->parent) - fwnode = dev_fwnode(gc->parent); - /* * First: allocate and populate the internal stat container, and * set up the struct device. @@ -671,14 +665,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data, gdev->chip = gc; gc->gpiodev = gdev; - of_gpio_dev_init(gc, gdev); - acpi_gpio_dev_init(gc, gdev); - - /* - * Assign fwnode depending on the result of the previous calls, - * if none of them succeed, assign it to the parent's one. - */ - gdev->dev.fwnode = dev_fwnode(&gdev->dev) ?: fwnode; + device_set_node(&gdev->dev, gc->fwnode ?: dev_fwnode(gc->parent)); gdev->id = ida_alloc(&gpio_ida, GFP_KERNEL); if (gdev->id < 0) { diff --git a/include/linux/gpio/driver.h b/include/linux/gpio/driver.h index 6aeea1071b1b..12c2c32d42d2 100644 --- a/include/linux/gpio/driver.h +++ b/include/linux/gpio/driver.h @@ -503,13 +503,6 @@ struct gpio_chip { * the device tree automatically may have an OF translation */ - /** - * @of_node: - * - * Pointer to a device tree node representing this GPIO controller. - */ - struct device_node *of_node; - /** * @of_gpio_n_cells: *