From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f174.google.com (mail-pf1-f174.google.com [209.85.210.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5C475275B03 for ; Fri, 23 Jan 2026 18:22:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.174 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769192541; cv=none; b=dvEhURHCcyOrX+xv0vwgpS61j29JEuQZvmQHGKrvEYp95WfM4Xv72TChXhiadXuKg5iCTnin50YSQTtUpx3Br+/mhHnnoMnnRUHzL8rO5A/U5r2S1DXSYgwx5PiKxdwraVwEo7JQDmbgzzvpfNvuFByNjKcfk8AQAoScGkA0OsA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769192541; c=relaxed/simple; bh=SIVuQucr0XUIbRjwS0Nu80xS1m3kZ3OXWbHv6X+sf9A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bXRYsyzVDouhGf0KZ5KrviW2UipmR7tG1UIuzOFE5ieaY6ofvdaPVl0E8eVVhOcDPYWZb1qIKXi09M8XRvzQR1pCDcvKw+sK3brShu9DPw5I/9WlGilM8Yg2ZbmbRTlEbjpWnmb6rmOCTatDG02OKuRMh2CYY0GqwEbQxEVJFMM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Im4JyzYT; arc=none smtp.client-ip=209.85.210.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=roeck-us.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Im4JyzYT" Received: by mail-pf1-f174.google.com with SMTP id d2e1a72fcca58-81f47610542so1387187b3a.0 for ; Fri, 23 Jan 2026 10:22:20 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1769192539; x=1769797339; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:from:to:cc:subject:date :message-id:reply-to; bh=AKM++0ITaCmDLPaI1GObBl9/EOl/aYbw0SPRuuisulc=; b=Im4JyzYTdISApslmzIeaKSzYVrb0P1/35xRULrzILzBqYy7L7EvTujaL7fi516pAhi JgCqaL104H+KYc8nyo1P677feR+xFmDjUOgxkQDuk74hU9MuY6lotKm5CvX3+lagu8MF Vo09dsyAwqapItulJmSgceQ8smvCOjfns2RyesQ0EUeQhP7S1KovfuuJk0pFWdF4ojOg DQY2A1AzJxv7uONcFdCyq+y1oagiQPSlynXr/9jCOvhYUZeAY7hGQM8gAbjaxaUwm4zN BRePxFztkta+gk98qBRUo6qgIP3PIopa4LktS2gaaKb45cX7SBQxwWMEYWWd6cTA9eRt 0wrw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1769192539; x=1769797339; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:sender:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AKM++0ITaCmDLPaI1GObBl9/EOl/aYbw0SPRuuisulc=; b=WDd9dSTO3yZwBD4e7xq+Eyii7MrcY1WNcKB7UMZvCg81JNg1e+3S4ovzgfGbhuFUIl JziAM8/mbPpAJmd0S+QIFZODu1R7Fieiv2SWqcujj7rnz56MOjhtRypOThzSZZKyNGR7 SaqfwYqxWXm2oLiYPyRiJ4++rLMN4yBzdLQ4PqrQpJvS35jgrC4L1+Z3ER1COjH0Iij1 5oc/9b1KIY8nO9Qj987tP2pi5hqAn12syjz4ypfloU1DfSKqR0YOPB8CtQ7VW1gAPl/T 0lOPkc4LJMeHbnLXA3ygJI0LxGCB3pBf8+3YHTpgA6NHkP61YX4x0qJ4FbGDVhXyUpqP bQqg== X-Gm-Message-State: AOJu0YwsjhCER/h2Fph4vyhdMopNxSq8nPHBNJWDn3fC+OgGfreAE3o4 buUQBvFDMZ2ct0IozRDurGbJ8rosrbygfJlE89LQdFxoHUPdsuteFWNa46Bh5JmY X-Gm-Gg: AZuq6aJ/sSc5Sy5uDWl/ah1/F51IacVJU9TXK5uayVJFCpXVxfkFSkihBXgsbHLmonH vYQviAPqP582ms89jhOZjVIDjWaRowAHjdtNmvTHws8lsX0yG+IAr59amJjaW8YRqI3s/Ol/1FH JjdmB9/AwfEMhypeBhabWX+PG/Aa5Dhoi/1guacRZkF8MRqmoVx1TcJ6CEv7dCGkOhlei2DqHJk 7odn7b9uMpFGhKqFy6UtGQSUA7W3Tfa8Mk0N2KeNYQx2ul490nGTiEdM48jVZDQJ9ahmK/fUKJe 2D4RN3MYWyrbQp4xGCQW/wZWAxAgbzdOivMfgnURLAZnaWD5zYrqAYB/fSVWRresH/XkVvXqhqL yA/Eu7I8JreOzIa06MBl55oUARm3QdjeRCUx1ohlwejtfo4gtIDiWVVa32K3ZskWUSHQJV7M2Cb ITmdsV07xvz5nVAG5gpiZIjetAsAh5UyC8C4c= X-Received: by 2002:a05:6a00:1c9c:b0:819:5db9:6ac0 with SMTP id d2e1a72fcca58-823216f72a9mr1820886b3a.37.1769192539277; Fri, 23 Jan 2026 10:22:19 -0800 (PST) Received: from server.roeck-us.net ([2600:1700:e321:62f0:da43:aeff:fecc:bfd5]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-82318663d82sm2792223b3a.21.2026.01.23.10.22.18 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Jan 2026 10:22:18 -0800 (PST) Sender: Guenter Roeck From: Guenter Roeck To: linux-hwmon@vger.kernel.org Cc: linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Jaroslav Pulchart , "Rafael J . Wysocki" , lihuisong , Guenter Roeck Subject: [PATCH RFT 3/5] hwmon: Add support for updating thermal zones Date: Fri, 23 Jan 2026 10:22:06 -0800 Message-ID: <20260123182208.2229670-4-linux@roeck-us.net> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20260123182208.2229670-1-linux@roeck-us.net> References: <20260123182208.2229670-1-linux@roeck-us.net> Precedence: bulk X-Mailing-List: linux-hwmon@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Implement support for updating thermal zones. This is necessary to be able to handle updates to sysfs attribute visibility. Signed-off-by: Guenter Roeck --- drivers/hwmon/hwmon.c | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 1f35285ca7a0..cb89218a0b6a 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -276,7 +276,7 @@ static struct hwmon_thermal_data *hwmon_thermal_find_tz(struct device *dev, int return NULL; } -static int hwmon_thermal_register_sensors(struct device *dev) +static int hwmon_thermal_handle_sensors(struct device *dev, bool update) { struct hwmon_device *hwdev = to_hwmon_device(dev); const struct hwmon_chip_info *chip = hwdev->chip; @@ -294,22 +294,42 @@ static int hwmon_thermal_register_sensors(struct device *dev) continue; for (j = 0; info[i]->config[j]; j++) { + umode_t mode; int err; - if (!(info[i]->config[j] & HWMON_T_INPUT) || - !hwmon_is_visible(chip->ops, drvdata, hwmon_temp, - hwmon_temp_input, j)) + if (!(info[i]->config[j] & HWMON_T_INPUT)) continue; + mode = hwmon_is_visible(chip->ops, drvdata, hwmon_temp, + hwmon_temp_input, j); + if (!mode) { + struct hwmon_thermal_data *tzdata; - err = hwmon_thermal_add_sensor(dev, j); - if (err) - return err; + if (!update) + continue; + tzdata = hwmon_thermal_find_tz(dev, j); + if (tzdata) { + devm_thermal_of_zone_unregister(dev, tzdata->tzd); + devm_release_action(dev, hwmon_thermal_remove_sensor, + &tzdata->node); + } + } else { + if (!update || !hwmon_thermal_find_tz(dev, j)) { + err = hwmon_thermal_add_sensor(dev, j); + if (err) + return err; + } + } } } return 0; } +static int hwmon_thermal_register_sensors(struct device *dev) +{ + return hwmon_thermal_handle_sensors(dev, false); +} + static void hwmon_thermal_notify(struct device *dev, int index) { struct hwmon_thermal_data *tzdata = hwmon_thermal_find_tz(dev, index); -- 2.45.2