From patchwork Tue Jul 2 14:39:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Rafael J. Wysocki" X-Patchwork-Id: 13719869 Received: from cloudserver094114.home.pl (cloudserver094114.home.pl [79.96.170.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B6D661BA081; Tue, 2 Jul 2024 14:44:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=79.96.170.134 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719931497; cv=none; b=Hza1x9xRxUUHohreAUKagXcvkz7D8YfjlS+J+1S08VRpygbgargv9UJduNAYsMJTkvJfl2wnxKZf5qFo9kvjttLEBQNLXZiwAQaGE6z0ct4cYzTqCf3NhZJFysshskC12FawVGgk1OPumVgdu3grs07RnStvoFXTmtIhZQjRALE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1719931497; c=relaxed/simple; bh=N4431/dEqcLneJ0L4FqIhI85vfz3NLUuiDXk1AU3+nU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=Nw9oWruLdxgGlaMw7PA7h6VpDSWK7X973hBn+dsu5HC55vuXH0oFKAXbqeVYwduWMG2c7OpknnqmGnIOymYSONyos4MHOzukaCwUUPtKUvmcPlo5a/B1xUVFvXSGhNrn80B6EtVFP8Vl1Vxcpr95jy5/6hE13WdI7wbH/8kmn7E= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rjwysocki.net; spf=pass smtp.mailfrom=rjwysocki.net; dkim=fail (2048-bit key) header.d=rjwysocki.net header.i=@rjwysocki.net header.b=VqlLDQLZ reason="signature verification failed"; arc=none smtp.client-ip=79.96.170.134 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=rjwysocki.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rjwysocki.net Authentication-Results: smtp.subspace.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=rjwysocki.net header.i=@rjwysocki.net header.b="VqlLDQLZ" 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 6.2.0) id 745cb868f8af16c1; Tue, 2 Jul 2024 16:44:47 +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 cloudserver094114.home.pl (Postfix) with ESMTPSA id D92E0A562AE; Tue, 2 Jul 2024 16:44:46 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=rjwysocki.net; s=dkim; t=1719931487; bh=N4431/dEqcLneJ0L4FqIhI85vfz3NLUuiDXk1AU3+nU=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=VqlLDQLZnR7YAwfrbpap3zxI1WWOea7EZv8XRNZtrMSrkJy8T3vB1nj0cpCAIWFnr Ssz5PV8/wcR6HZLJJXMznIFV+mp/6+uBwZJVRLyk6PaXkBCq9JoCILOPl6w+bFmr20 CkMnCLdldnrvy938LH/OhgRaqe483zPltAmCG/mJqfx3XinE7qzd68O/mjckeClHcs 6DtSaoShJUPSrW+99njwhJNxnHhuXPa3NFr3VAKhMKgw2LBX6/Bn5vfFBFDsBo9Vzu U+lS2HMIIFFkGG2o3AgJKyrDNObh41fnpb+UqH8xPmG7FIJxqP0Hbeofcc2CKiba2H ZYNmZ5sELNZZg== From: "Rafael J. Wysocki" To: Linux PM Cc: LKML , "Rafael J. Wysocki" , Lukasz Luba , Daniel Lezcano , Srinivas Pandruvada , Zhang Rui , Shawn Guo , Pengutronix Kernel Team , Thara Gopinath , Thierry Reding , Jonathan Hunter , linux-wireless@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [RESEND][PATCH v1 1/5] thermal: helpers: Introduce thermal_trip_is_bound_to_cdev() Date: Tue, 02 Jul 2024 16:39:55 +0200 Message-ID: <13545762.uLZWGnKmhe@rjwysocki.net> In-Reply-To: <1890956.tdWV9SEqCh@rjwysocki.net> References: <1890956.tdWV9SEqCh@rjwysocki.net> Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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: gggruggvucftvghtrhhoucdtuddrgeeftddrudehgdejjecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfjqffogffrnfdpggftiffpkfenuceurghilhhouhhtmecuudehtdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvvefufffkjghfggfgtgesthfuredttddtjeenucfhrhhomhepfdftrghfrggvlhculfdrucghhihsohgtkhhifdcuoehrjhifsehrjhifhihsohgtkhhirdhnvghtqeenucggtffrrghtthgvrhhnpedvffeuiedtgfdvtddugeeujedtffetteegfeekffdvfedttddtuefhgeefvdejhfenucfkphepudelhedrudefiedrudelrdelgeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepihhnvghtpeduleehrddufeeirdduledrleegpdhhvghlohepkhhrvggrtghhvghrrdhlohgtrghlnhgvthdpmhgrihhlfhhrohhmpedftfgrfhgrvghlucflrdcuhgihshhotghkihdfuceorhhjfiesrhhjfiihshhotghkihdrnhgvtheqpdhnsggprhgtphhtthhopedugedprhgtphhtthhopehlihhnuhigqdhpmhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehlihhnuhigqdhkvghrnhgvlhesvhhgvghrrdhkvghrnhgvlhdrohhrghdprhgtphhtthhopehrrghfrggvlheskhgvrhhnvghlrdhorhhgpdhrtghpthhtoheplhhukhgrshiirdhluhgsrgesrghrmhdrtghomhdprhgtphhtthhopegurghnihgvlhdrlhgviigtrghnoheslhhinhgrrhhordhorhhgpdhrtghpthhtohepshhrihhnihhvrghsrdhprghnughruhhvrggurgeslhhinhhugidrihhnthgvlhdrtghomh X-DCC--Metrics: v370.home.net.pl 1024; Body=14 Fuz1=14 Fuz2=14 From: Rafael J. Wysocki Introduce a new helper function thermal_trip_is_bound_to_cdev() for checking whether or not a given trip point has been bound to a given cooling device. The primary user of it will be the Tegra thermal driver. Signed-off-by: Rafael J. Wysocki --- drivers/thermal/thermal_helpers.c | 47 ++++++++++++++++++++++++++++---------- include/linux/thermal.h | 3 ++ 2 files changed, 38 insertions(+), 12 deletions(-) Index: linux-pm/drivers/thermal/thermal_helpers.c =================================================================== --- linux-pm.orig/drivers/thermal/thermal_helpers.c +++ linux-pm/drivers/thermal/thermal_helpers.c @@ -39,30 +39,53 @@ int get_tz_trend(struct thermal_zone_dev return trend; } +static struct thermal_instance *get_instance(struct thermal_zone_device *tz, + struct thermal_cooling_device *cdev, + const struct thermal_trip *trip) +{ + struct thermal_instance *ti; + + list_for_each_entry(ti, &tz->thermal_instances, tz_node) { + if (ti->trip == trip && ti->cdev == cdev) + return ti; + } + + return NULL; +} + +bool thermal_trip_is_bound_to_cdev(struct thermal_zone_device *tz, + const struct thermal_trip *trip, + struct thermal_cooling_device *cdev) +{ + bool ret; + + mutex_lock(&tz->lock); + mutex_lock(&cdev->lock); + + ret = !!get_instance(tz, cdev, trip); + + mutex_unlock(&cdev->lock); + mutex_unlock(&tz->lock); + + return ret; +} +EXPORT_SYMBOL_GPL(thermal_trip_is_bound_to_cdev); + struct thermal_instance * get_thermal_instance(struct thermal_zone_device *tz, struct thermal_cooling_device *cdev, int trip_index) { - struct thermal_instance *pos = NULL; - struct thermal_instance *target_instance = NULL; - const struct thermal_trip *trip; + struct thermal_instance *ti; mutex_lock(&tz->lock); mutex_lock(&cdev->lock); - trip = &tz->trips[trip_index].trip; - - list_for_each_entry(pos, &tz->thermal_instances, tz_node) { - if (pos->tz == tz && pos->trip == trip && pos->cdev == cdev) { - target_instance = pos; - break; - } - } + ti = get_instance(tz, cdev, &tz->trips[trip_index].trip); mutex_unlock(&cdev->lock); mutex_unlock(&tz->lock); - return target_instance; + return ti; } EXPORT_SYMBOL(get_thermal_instance); Index: linux-pm/include/linux/thermal.h =================================================================== --- linux-pm.orig/include/linux/thermal.h +++ linux-pm/include/linux/thermal.h @@ -269,6 +269,9 @@ struct thermal_zone_device *thermal_zone int thermal_zone_get_temp(struct thermal_zone_device *tz, int *temp); int thermal_zone_get_slope(struct thermal_zone_device *tz); int thermal_zone_get_offset(struct thermal_zone_device *tz); +bool thermal_trip_is_bound_to_cdev(struct thermal_zone_device *tz, + const struct thermal_trip *trip, + struct thermal_cooling_device *cdev); int thermal_zone_device_enable(struct thermal_zone_device *tz); int thermal_zone_device_disable(struct thermal_zone_device *tz);