From patchwork Sun Jun 4 15:19:06 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 689810 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 B5660C7EE32 for ; Sun, 4 Jun 2023 15:24:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231195AbjFDPYj (ORCPT ); Sun, 4 Jun 2023 11:24:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230354AbjFDPYh (ORCPT ); Sun, 4 Jun 2023 11:24:37 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E6822D3; Sun, 4 Jun 2023 08:24:35 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.2.0) id d5d90b075636b89b; Sun, 4 Jun 2023 17:24:34 +0200 Received: from kreacher.localnet (unknown [195.136.19.94]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id EC066961C82; Sun, 4 Jun 2023 17:24:33 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux ACPI Cc: LKML , Michal Wilczynski Subject: [RFT][PATCH v1 1/4] ACPI: button: Eliminate the driver notify callback Date: Sun, 04 Jun 2023 17:19:06 +0200 Message-ID: <2176493.Icojqenx9y@kreacher> In-Reply-To: <1847933.atdPhlSkOF@kreacher> References: <1847933.atdPhlSkOF@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrfeeljedgkeekucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdffueeitdfgvddtudegueejtdffteetgeefkeffvdeftddttdeuhfegfedvjefhnecukfhppeduleehrddufeeirdduledrleegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepudelhedrudefiedrudelrdelgedphhgvlhhopehkrhgvrggthhgvrhdrlhhotggrlhhnvghtpdhmrghilhhfrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqedpnhgspghrtghpthhtohepfedprhgtphhtthhopehlihhnuhigqdgrtghpihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihgthhgrlhdrfihilhgtiiihnhhskhhisehinhhtvghlrdgtohhm X-DCC--Metrics: v370.home.net.pl 1024; Body=3 Fuz1=3 Fuz2=3 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Rafael J. Wysocki Rework the ACPI button driver to install notify handlers or fixed event handlers for the devices it binds to by itself, reduce the indentation level in its notify handler routine and drop its notify callback. This will allow acpi_device_install_notify_handler() and acpi_device_remove_notify_handler() to be simplified going forward and it will allow the driver to use different notify handlers for the lid and for the power and sleep buttons. Signed-off-by: Rafael J. Wysocki Reviewed-by: Michal Wilczynski --- drivers/acpi/button.c | 140 ++++++++++++++++++++++++++++++++++---------------- 1 file changed, 96 insertions(+), 44 deletions(-) Index: linux-pm/drivers/acpi/button.c =================================================================== --- linux-pm.orig/drivers/acpi/button.c +++ linux-pm/drivers/acpi/button.c @@ -135,7 +135,6 @@ static const struct dmi_system_id dmi_li static int acpi_button_add(struct acpi_device *device); static void acpi_button_remove(struct acpi_device *device); -static void acpi_button_notify(struct acpi_device *device, u32 event); #ifdef CONFIG_PM_SLEEP static int acpi_button_suspend(struct device *dev); @@ -153,7 +152,6 @@ static struct acpi_driver acpi_button_dr .ops = { .add = acpi_button_add, .remove = acpi_button_remove, - .notify = acpi_button_notify, }, .drv.pm = &acpi_button_pm, }; @@ -409,45 +407,55 @@ static void acpi_lid_initialize_state(st button->lid_state_initialized = true; } -static void acpi_button_notify(struct acpi_device *device, u32 event) +static void acpi_button_notify(acpi_handle handle, u32 event, void *data) { - struct acpi_button *button = acpi_driver_data(device); + struct acpi_device *device = data; + struct acpi_button *button; struct input_dev *input; + int keycode; - switch (event) { - case ACPI_FIXED_HARDWARE_EVENT: - event = ACPI_BUTTON_NOTIFY_STATUS; - fallthrough; - case ACPI_BUTTON_NOTIFY_STATUS: - input = button->input; - if (button->type == ACPI_BUTTON_TYPE_LID) { - if (button->lid_state_initialized) - acpi_lid_update_state(device, true); - } else { - int keycode; - - acpi_pm_wakeup_event(&device->dev); - if (button->suspended) - break; - - keycode = test_bit(KEY_SLEEP, input->keybit) ? - KEY_SLEEP : KEY_POWER; - input_report_key(input, keycode, 1); - input_sync(input); - input_report_key(input, keycode, 0); - input_sync(input); - - acpi_bus_generate_netlink_event( - device->pnp.device_class, - dev_name(&device->dev), - event, ++button->pushed); - } - break; - default: + if (event != ACPI_BUTTON_NOTIFY_STATUS) { acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n", event); - break; + return; + } + + button = acpi_driver_data(device); + + if (button->type == ACPI_BUTTON_TYPE_LID) { + if (button->lid_state_initialized) + acpi_lid_update_state(device, true); + + return; } + + acpi_pm_wakeup_event(&device->dev); + + if (button->suspended) + return; + + input = button->input; + keycode = test_bit(KEY_SLEEP, input->keybit) ? KEY_SLEEP : KEY_POWER; + + input_report_key(input, keycode, 1); + input_sync(input); + input_report_key(input, keycode, 0); + input_sync(input); + + acpi_bus_generate_netlink_event(device->pnp.device_class, + dev_name(&device->dev), + event, ++button->pushed); +} + +static void acpi_button_notify_run(void *data) +{ + acpi_button_notify(NULL, ACPI_BUTTON_NOTIFY_STATUS, data); +} + +static u32 acpi_button_event(void *data) +{ + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_button_notify_run, data); + return ACPI_INTERRUPT_HANDLED; } #ifdef CONFIG_PM_SLEEP @@ -492,8 +500,9 @@ static int acpi_button_add(struct acpi_d struct acpi_button *button; struct input_dev *input; const char *hid = acpi_device_hid(device); + acpi_status status; char *name, *class; - int error; + int error = 0; if (!strcmp(hid, ACPI_BUTTON_HID_LID) && lid_init_state == ACPI_BUTTON_LID_INIT_DISABLED) @@ -535,12 +544,15 @@ static int acpi_button_add(struct acpi_d } else { pr_info("Unsupported hid [%s]\n", hid); error = -ENODEV; - goto err_free_input; } - error = acpi_button_add_fs(device); - if (error) - goto err_free_input; + if (!error) + error = acpi_button_add_fs(device); + + if (error) { + input_free_device(input); + goto err_free_button; + } snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid); @@ -568,6 +580,30 @@ static int acpi_button_add(struct acpi_d error = input_register_device(input); if (error) goto err_remove_fs; + + switch (device->device_type) { + case ACPI_BUS_TYPE_POWER_BUTTON: + status = acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_button_event, + device); + break; + case ACPI_BUS_TYPE_SLEEP_BUTTON: + status = acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_button_event, + device); + break; + default: + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, + acpi_button_notify, + device); + break; + } + if (ACPI_FAILURE(status)) { + error = -ENODEV; + goto err_input_unregister; + } + if (button->type == ACPI_BUTTON_TYPE_LID) { /* * This assumes there's only one lid device, or if there are @@ -580,11 +616,11 @@ static int acpi_button_add(struct acpi_d pr_info("%s [%s]\n", name, acpi_device_bid(device)); return 0; - err_remove_fs: +err_input_unregister: + input_unregister_device(input); +err_remove_fs: acpi_button_remove_fs(device); - err_free_input: - input_free_device(input); - err_free_button: +err_free_button: kfree(button); return error; } @@ -593,6 +629,22 @@ static void acpi_button_remove(struct ac { struct acpi_button *button = acpi_driver_data(device); + switch (device->device_type) { + case ACPI_BUS_TYPE_POWER_BUTTON: + acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_button_event); + break; + case ACPI_BUS_TYPE_SLEEP_BUTTON: + acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_button_event); + break; + default: + acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_button_notify); + break; + } + acpi_os_wait_events_complete(); + acpi_button_remove_fs(device); input_unregister_device(button->input); kfree(button); From patchwork Sun Jun 4 15:20:27 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 689811 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 45DEFC7EE2C for ; Sun, 4 Jun 2023 15:24:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230487AbjFDPYh (ORCPT ); Sun, 4 Jun 2023 11:24:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39092 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230005AbjFDPYg (ORCPT ); Sun, 4 Jun 2023 11:24:36 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 118FBD2; Sun, 4 Jun 2023 08:24:34 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.2.0) id 80b17cd337c071f1; Sun, 4 Jun 2023 17:24:33 +0200 Received: from kreacher.localnet (unknown [195.136.19.94]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id 1D1C1961C82; Sun, 4 Jun 2023 17:24:33 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux ACPI Cc: LKML , Michal Wilczynski Subject: [RFT][PATCH v1 2/4] ACPI: button: Use different notify handlers for lid and buttons Date: Sun, 04 Jun 2023 17:20:27 +0200 Message-ID: <2438693.jE0xQCEvom@kreacher> In-Reply-To: <1847933.atdPhlSkOF@kreacher> References: <1847933.atdPhlSkOF@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrfeeljedgkeekucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdffueeitdfgvddtudegueejtdffteetgeefkeffvdeftddttdeuhfegfedvjefhnecukfhppeduleehrddufeeirdduledrleegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepudelhedrudefiedrudelrdelgedphhgvlhhopehkrhgvrggthhgvrhdrlhhotggrlhhnvghtpdhmrghilhhfrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqedpnhgspghrtghpthhtohepfedprhgtphhtthhopehlihhnuhigqdgrtghpihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihgthhgrlhdrfihilhgtiiihnhhskhhisehinhhtvghlrdgtohhm X-DCC--Metrics: v370.home.net.pl 1024; Body=3 Fuz1=3 Fuz2=3 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Rafael J. Wysocki Since the lid handling in acpi_button_notify() is special, introduce acpi_lid_notify() specifically for handling lid notifications. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/button.c | 33 ++++++++++++++++++++++++--------- 1 file changed, 24 insertions(+), 9 deletions(-) Index: linux-pm/drivers/acpi/button.c =================================================================== --- linux-pm.orig/drivers/acpi/button.c +++ linux-pm/drivers/acpi/button.c @@ -407,12 +407,10 @@ static void acpi_lid_initialize_state(st button->lid_state_initialized = true; } -static void acpi_button_notify(acpi_handle handle, u32 event, void *data) +static void acpi_lid_notify(acpi_handle handle, u32 event, void *data) { struct acpi_device *device = data; struct acpi_button *button; - struct input_dev *input; - int keycode; if (event != ACPI_BUTTON_NOTIFY_STATUS) { acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n", @@ -421,16 +419,28 @@ static void acpi_button_notify(acpi_hand } button = acpi_driver_data(device); + if (!button->lid_state_initialized) + return; - if (button->type == ACPI_BUTTON_TYPE_LID) { - if (button->lid_state_initialized) - acpi_lid_update_state(device, true); + acpi_lid_update_state(device, true); +} +static void acpi_button_notify(acpi_handle handle, u32 event, void *data) +{ + struct acpi_device *device = data; + struct acpi_button *button; + struct input_dev *input; + int keycode; + + if (event != ACPI_BUTTON_NOTIFY_STATUS) { + acpi_handle_debug(device->handle, "Unsupported event [0x%x]\n", + event); return; } acpi_pm_wakeup_event(&device->dev); + button = acpi_driver_data(device); if (button->suspended) return; @@ -497,6 +507,7 @@ static int acpi_lid_input_open(struct in static int acpi_button_add(struct acpi_device *device) { + acpi_notify_handler handler; struct acpi_button *button; struct input_dev *input; const char *hid = acpi_device_hid(device); @@ -526,17 +537,20 @@ static int acpi_button_add(struct acpi_d if (!strcmp(hid, ACPI_BUTTON_HID_POWER) || !strcmp(hid, ACPI_BUTTON_HID_POWERF)) { button->type = ACPI_BUTTON_TYPE_POWER; + handler = acpi_button_notify; strcpy(name, ACPI_BUTTON_DEVICE_NAME_POWER); sprintf(class, "%s/%s", ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); } else if (!strcmp(hid, ACPI_BUTTON_HID_SLEEP) || !strcmp(hid, ACPI_BUTTON_HID_SLEEPF)) { button->type = ACPI_BUTTON_TYPE_SLEEP; + handler = acpi_button_notify; strcpy(name, ACPI_BUTTON_DEVICE_NAME_SLEEP); sprintf(class, "%s/%s", ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); } else if (!strcmp(hid, ACPI_BUTTON_HID_LID)) { button->type = ACPI_BUTTON_TYPE_LID; + handler = acpi_lid_notify; strcpy(name, ACPI_BUTTON_DEVICE_NAME_LID); sprintf(class, "%s/%s", ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); @@ -594,8 +608,7 @@ static int acpi_button_add(struct acpi_d break; default: status = acpi_install_notify_handler(device->handle, - ACPI_DEVICE_NOTIFY, - acpi_button_notify, + ACPI_DEVICE_NOTIFY, handler, device); break; } @@ -640,7 +653,9 @@ static void acpi_button_remove(struct ac break; default: acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, - acpi_button_notify); + button->type == ACPI_BUTTON_TYPE_LID ? + acpi_lid_notify : + acpi_button_notify); break; } acpi_os_wait_events_complete(); From patchwork Sun Jun 4 15:22:48 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 689812 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 2979FC7EE29 for ; Sun, 4 Jun 2023 15:24:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229886AbjFDPYg (ORCPT ); Sun, 4 Jun 2023 11:24:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39088 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229449AbjFDPYf (ORCPT ); Sun, 4 Jun 2023 11:24:35 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 63349CE; Sun, 4 Jun 2023 08:24:34 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.2.0) id 4b94dd63f174b4c0; Sun, 4 Jun 2023 17:24:32 +0200 Received: from kreacher.localnet (unknown [195.136.19.94]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id 69A92961C82; Sun, 4 Jun 2023 17:24:32 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux ACPI Cc: LKML , Michal Wilczynski , Josh Triplett , Hanjun Guo Subject: [RFT][PATCH v1 3/4] ACPI: tiny-power-button: Eliminate the driver notify callback Date: Sun, 04 Jun 2023 17:22:48 +0200 Message-ID: <5392458.Sb9uPGUboI@kreacher> In-Reply-To: <1847933.atdPhlSkOF@kreacher> References: <1847933.atdPhlSkOF@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrfeeljedgkeekucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdffueeitdfgvddtudegueejtdffteetgeefkeffvdeftddttdeuhfegfedvjefhnecukfhppeduleehrddufeeirdduledrleegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepudelhedrudefiedrudelrdelgedphhgvlhhopehkrhgvrggthhgvrhdrlhhotggrlhhnvghtpdhmrghilhhfrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqedpnhgspghrtghpthhtohephedprhgtphhtthhopehlihhnuhigqdgrtghpihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihgthhgrlhdrfihilhgtiiihnhhskhhisehinhhtvghlrdgtohhmpdhrtghpthhtohepjhhoshhhsehjohhshhhtrhhiphhlvghtthdrohhrghdprhgtphht thhopehguhhohhgrnhhjuhhnsehhuhgrfigvihdrtghomh X-DCC--Metrics: v370.home.net.pl 1024; Body=5 Fuz1=5 Fuz2=5 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Rafael J. Wysocki Rework the ACPI tiny-power-button driver to install a notify handler or a fixed event handler for the device it binds to by itself and drop its notify callback. This will allow acpi_device_install_notify_handler() and acpi_device_remove_notify_handler() to be simplified going forward. Signed-off-by: Rafael J. Wysocki --- drivers/acpi/tiny-power-button.c | 49 ++++++++++++++++++++++++++++++++------- 1 file changed, 41 insertions(+), 8 deletions(-) Index: linux-pm/drivers/acpi/tiny-power-button.c =================================================================== --- linux-pm.orig/drivers/acpi/tiny-power-button.c +++ linux-pm/drivers/acpi/tiny-power-button.c @@ -19,18 +19,52 @@ static const struct acpi_device_id tiny_ }; MODULE_DEVICE_TABLE(acpi, tiny_power_button_device_ids); -static int acpi_noop_add(struct acpi_device *device) +static void acpi_tiny_power_button_notify(acpi_handle handle, u32 event, void *data) { - return 0; + kill_cad_pid(power_signal, 1); } -static void acpi_noop_remove(struct acpi_device *device) +static void acpi_tiny_power_button_notify_run(void *not_used) { + acpi_tiny_power_button_notify(NULL, ACPI_FIXED_HARDWARE_EVENT, NULL); } -static void acpi_tiny_power_button_notify(struct acpi_device *device, u32 event) +static u32 acpi_tiny_power_button_event(void *not_used) { - kill_cad_pid(power_signal, 1); + acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_tiny_power_button_notify_run, NULL); + return ACPI_INTERRUPT_HANDLED; +} + +static int acpi_tiny_power_button_add(struct acpi_device *device) +{ + acpi_status status; + + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) { + status = acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_tiny_power_button_event, + NULL); + } else { + status = acpi_install_notify_handler(device->handle, + ACPI_DEVICE_NOTIFY, + acpi_tiny_power_button_notify, + NULL); + } + if (ACPI_FAILURE(status)) + return -ENODEV; + + return 0; +} + +static void acpi_tiny_power_button_remove(struct acpi_device *device) +{ + if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) { + acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_tiny_power_button_event); + } else { + acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, + acpi_tiny_power_button_notify); + } + acpi_os_wait_events_complete(); } static struct acpi_driver acpi_tiny_power_button_driver = { @@ -38,9 +72,8 @@ static struct acpi_driver acpi_tiny_powe .class = "tiny-power-button", .ids = tiny_power_button_device_ids, .ops = { - .add = acpi_noop_add, - .remove = acpi_noop_remove, - .notify = acpi_tiny_power_button_notify, + .add = acpi_tiny_power_button_add, + .remove = acpi_tiny_power_button_remove, }, }; From patchwork Sun Jun 4 15:23:40 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 689044 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 36F68C7EE23 for ; Sun, 4 Jun 2023 15:24:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230153AbjFDPYh (ORCPT ); Sun, 4 Jun 2023 11:24:37 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39090 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229569AbjFDPYf (ORCPT ); Sun, 4 Jun 2023 11:24:35 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 632CBCD; Sun, 4 Jun 2023 08:24:34 -0700 (PDT) Received: from localhost (127.0.0.1) (HELO v370.home.net.pl) by /usr/run/smtp (/usr/run/postfix/private/idea_relay_lmtp) via UNIX with SMTP (IdeaSmtpServer 5.2.0) id 08b175b11797ce0d; Sun, 4 Jun 2023 17:24:32 +0200 Received: from kreacher.localnet (unknown [195.136.19.94]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by v370.home.net.pl (Postfix) with ESMTPSA id B326F961C82; Sun, 4 Jun 2023 17:24:31 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux ACPI Cc: LKML , Michal Wilczynski Subject: [RFT][PATCH v1 4/4] ACPI: bus: Simplify installation and removal of notify callback Date: Sun, 04 Jun 2023 17:23:40 +0200 Message-ID: <2130740.OBFZWjSADL@kreacher> In-Reply-To: <1847933.atdPhlSkOF@kreacher> References: <1847933.atdPhlSkOF@kreacher> MIME-Version: 1.0 X-CLIENT-IP: 195.136.19.94 X-CLIENT-HOSTNAME: 195.136.19.94 X-VADE-SPAMSTATE: clean X-VADE-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedvhedrfeeljedgkeelucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecujffqoffgrffnpdggtffipffknecuuegrihhlohhuthemucduhedtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvfevufffkfgjfhgggfgtsehtufertddttdejnecuhfhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqnecuggftrfgrthhtvghrnhepvdffueeitdfgvddtudegueejtdffteetgeefkeffvdeftddttdeuhfegfedvjefhnecukfhppeduleehrddufeeirdduledrleegnecuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehinhgvthepudelhedrudefiedrudelrdelgedphhgvlhhopehkrhgvrggthhgvrhdrlhhotggrlhhnvghtpdhmrghilhhfrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqedpnhgspghrtghpthhtohepfedprhgtphhtthhopehlihhnuhigqdgrtghpihesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehmihgthhgrlhdrfihilhgtiiihnhhskhhisehinhhtvghlrdgtohhm X-DCC--Metrics: v370.home.net.pl 1024; Body=3 Fuz1=3 Fuz2=3 Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org From: Rafael J. Wysocki Because the only drivers that cared about button fixed events take care of those events by themselves now, eliminate the code related to them from acpi_device_install_notify_handler() and acpi_device_remove_notify_handler(). Signed-off-by: Rafael J. Wysocki --- drivers/acpi/bus.c | 53 +++++++++-------------------------------------------- 1 file changed, 9 insertions(+), 44 deletions(-) Index: linux-pm/drivers/acpi/bus.c =================================================================== --- linux-pm.orig/drivers/acpi/bus.c +++ linux-pm/drivers/acpi/bus.c @@ -530,65 +530,30 @@ static void acpi_notify_device(acpi_hand acpi_drv->ops.notify(device, event); } -static void acpi_notify_device_fixed(void *data) -{ - struct acpi_device *device = data; - - /* Fixed hardware devices have no handles */ - acpi_notify_device(NULL, ACPI_FIXED_HARDWARE_EVENT, device); -} - -static u32 acpi_device_fixed_event(void *data) -{ - acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_notify_device_fixed, data); - return ACPI_INTERRUPT_HANDLED; -} - static int acpi_device_install_notify_handler(struct acpi_device *device, struct acpi_driver *acpi_drv) { - acpi_status status; - - if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) { - status = - acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_device_fixed_event, - device); - } else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) { - status = - acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_device_fixed_event, - device); - } else { - u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? + u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? ACPI_ALL_NOTIFY : ACPI_DEVICE_NOTIFY; + acpi_status status; - status = acpi_install_notify_handler(device->handle, type, - acpi_notify_device, - device); - } - + status = acpi_install_notify_handler(device->handle, type, + acpi_notify_device, device); if (ACPI_FAILURE(status)) return -EINVAL; + return 0; } static void acpi_device_remove_notify_handler(struct acpi_device *device, struct acpi_driver *acpi_drv) { - if (device->device_type == ACPI_BUS_TYPE_POWER_BUTTON) { - acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_device_fixed_event); - } else if (device->device_type == ACPI_BUS_TYPE_SLEEP_BUTTON) { - acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_device_fixed_event); - } else { - u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? + u32 type = acpi_drv->flags & ACPI_DRIVER_ALL_NOTIFY_EVENTS ? ACPI_ALL_NOTIFY : ACPI_DEVICE_NOTIFY; - acpi_remove_notify_handler(device->handle, type, - acpi_notify_device); - } + acpi_remove_notify_handler(device->handle, type, + acpi_notify_device); + acpi_os_wait_events_complete(); }