From patchwork Thu Sep 21 18:01:43 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: 725084 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 58453E7D0AD for ; Thu, 21 Sep 2023 21:04:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232572AbjIUVEK (ORCPT ); Thu, 21 Sep 2023 17:04:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46272 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230237AbjIUVDf (ORCPT ); Thu, 21 Sep 2023 17:03:35 -0400 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BCE22AF6AC; Thu, 21 Sep 2023 11:07:25 -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 7e05a53f9afe0d47; Thu, 21 Sep 2023 20:07:24 +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 B6180664EBE; Thu, 21 Sep 2023 20:07:23 +0200 (CEST) From: "Rafael J. Wysocki" To: Linux PM Cc: LKML , Linux ACPI , Srinivas Pandruvada , Zhang Rui , Daniel Lezcano , Lukasz Luba , "Rafael J. Wysocki" Subject: [PATCH v1 10/13] thermal: core: Allow trip pointers to be used for cooling device binding Date: Thu, 21 Sep 2023 20:01:43 +0200 Message-ID: <45837158.fMDQidcC6G@kreacher> In-Reply-To: <1957441.PYKUYFuaPT@kreacher> References: <1957441.PYKUYFuaPT@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: gggruggvucftvghtrhhoucdtuddrgedviedrudekiedguddvtdcutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfjqffogffrnfdpggftiffpkfenuceurghilhhouhhtmecuudehtdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefufffkjghfggfgtgesthfuredttddtjeenucfhrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqeenucggtffrrghtthgvrhhnpedvffeuiedtgfdvtddugeeujedtffetteegfeekffdvfedttddtuefhgeefvdejhfenucfkphepudelhedrudefiedrudelrdelgeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduleehrddufeeirdduledrleegpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopeekpdhrtghpthhtoheplhhinhhugidqphhmsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqkhgvrhhnvghlsehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhinhhugidqrggtphhisehvghgvrhdrkhgvrhhnvghlrdhorhhgpdhrtghpthhtohepshhrihhnihhvrghsrdhprghnughruhhvrggurgeslhhinhhugidrihhn thgvlhdrtghomhdprhgtphhtthhopehruhhirdiihhgrnhhgsehinhhtvghlrdgtohhmpdhrtghpthhtohepuggrnhhivghlrdhlvgiitggrnhhosehlihhnrghrohdrohhrgh X-DCC--Metrics: v370.home.net.pl 1024; Body=8 Fuz1=8 Fuz2=8 Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org From: Rafael J. Wysocki Add new helper functions, thermal_bind_cdev_to_trip() and thermal_unbind_cdev_from_trip(), to allow a trip pointer to be used for binding a cooling device to a trip point and unbinding it, respectively, and redefine the existing helpers, thermal_zone_bind_cooling_device() and thermal_zone_unbind_cooling_device(), as wrappers around the new ones, respectively. No intentional functional impact. Signed-off-by: Rafael J. Wysocki --- drivers/thermal/thermal_core.c | 54 +++++++++++++++++++++++++---------------- include/linux/thermal.h | 8 ++++++ 2 files changed, 42 insertions(+), 20 deletions(-) Index: linux-pm/drivers/thermal/thermal_core.c =================================================================== --- linux-pm.orig/drivers/thermal/thermal_core.c +++ linux-pm/drivers/thermal/thermal_core.c @@ -600,10 +600,9 @@ struct thermal_zone_device *thermal_zone */ /** - * thermal_zone_bind_cooling_device() - bind a cooling device to a thermal zone + * thermal_bind_cdev_to_trip - bind a cooling device to a thermal zone * @tz: pointer to struct thermal_zone_device - * @trip_index: indicates which trip point the cooling devices is - * associated with in this thermal zone. + * @trip: trip point the cooling devices is associated with in this zone. * @cdev: pointer to struct thermal_cooling_device * @upper: the Maximum cooling state for this trip point. * THERMAL_NO_LIMIT means no upper limit, @@ -621,8 +620,8 @@ struct thermal_zone_device *thermal_zone * * Return: 0 on success, the proper error value otherwise. */ -int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz, - int trip_index, +int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz, + const struct thermal_trip *trip, struct thermal_cooling_device *cdev, unsigned long upper, unsigned long lower, unsigned int weight) @@ -631,15 +630,9 @@ int thermal_zone_bind_cooling_device(str struct thermal_instance *pos; struct thermal_zone_device *pos1; struct thermal_cooling_device *pos2; - const struct thermal_trip *trip; bool upper_no_limit; int result; - if (trip_index >= tz->num_trips || trip_index < 0) - return -EINVAL; - - trip = &tz->trips[trip_index]; - list_for_each_entry(pos1, &thermal_tz_list, node) { if (pos1 == tz) break; @@ -736,14 +729,26 @@ free_mem: kfree(dev); return result; } +EXPORT_SYMBOL_GPL(thermal_bind_cdev_to_trip); + +int thermal_zone_bind_cooling_device(struct thermal_zone_device *tz, + int trip_index, + struct thermal_cooling_device *cdev, + unsigned long upper, unsigned long lower, + unsigned int weight) +{ + if (trip_index < 0 || trip_index >= tz->num_trips) + return -EINVAL; + + return thermal_bind_cdev_to_trip(tz, &tz->trips[trip_index], cdev, + upper, lower, weight); +} EXPORT_SYMBOL_GPL(thermal_zone_bind_cooling_device); /** - * thermal_zone_unbind_cooling_device() - unbind a cooling device from a - * thermal zone. + * thermal_unbind_cdev_from_trip - unbind a cooling device from a thermal zone. * @tz: pointer to a struct thermal_zone_device. - * @trip_index: indicates which trip point the cooling devices is - * associated with in this thermal zone. + * @trip: trip point the cooling devices is associated with in this zone. * @cdev: pointer to a struct thermal_cooling_device. * * This interface function unbind a thermal cooling device from the certain @@ -752,16 +757,14 @@ EXPORT_SYMBOL_GPL(thermal_zone_bind_cool * * Return: 0 on success, the proper error value otherwise. */ -int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz, - int trip_index, - struct thermal_cooling_device *cdev) +int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, + const struct thermal_trip *trip, + struct thermal_cooling_device *cdev) { struct thermal_instance *pos, *next; - const struct thermal_trip *trip; mutex_lock(&tz->lock); mutex_lock(&cdev->lock); - trip = &tz->trips[trip_index]; list_for_each_entry_safe(pos, next, &tz->thermal_instances, tz_node) { if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) { list_del(&pos->tz_node); @@ -784,6 +787,17 @@ unbind: kfree(pos); return 0; } +EXPORT_SYMBOL_GPL(thermal_unbind_cdev_from_trip); + +int thermal_zone_unbind_cooling_device(struct thermal_zone_device *tz, + int trip_index, + struct thermal_cooling_device *cdev) +{ + if (trip_index < 0 || trip_index >= tz->num_trips) + return -EINVAL; + + return thermal_unbind_cdev_from_trip(tz, &tz->trips[trip_index], cdev); +} EXPORT_SYMBOL_GPL(thermal_zone_unbind_cooling_device); static void thermal_release(struct device *dev) Index: linux-pm/include/linux/thermal.h =================================================================== --- linux-pm.orig/include/linux/thermal.h +++ linux-pm/include/linux/thermal.h @@ -320,10 +320,18 @@ const char *thermal_zone_device_type(str int thermal_zone_device_id(struct thermal_zone_device *tzd); struct device *thermal_zone_device(struct thermal_zone_device *tzd); +int thermal_bind_cdev_to_trip(struct thermal_zone_device *tz, + const struct thermal_trip *trip, + struct thermal_cooling_device *cdev, + unsigned long upper, unsigned long lower, + unsigned int weight); int thermal_zone_bind_cooling_device(struct thermal_zone_device *, int, struct thermal_cooling_device *, unsigned long, unsigned long, unsigned int); +int thermal_unbind_cdev_from_trip(struct thermal_zone_device *tz, + const struct thermal_trip *trip, + struct thermal_cooling_device *cdev); int thermal_zone_unbind_cooling_device(struct thermal_zone_device *, int, struct thermal_cooling_device *); void thermal_zone_device_update(struct thermal_zone_device *,