From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 897CBC49EA2 for ; Sun, 20 Jun 2021 21:14:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 70A01610CA for ; Sun, 20 Jun 2021 21:14:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230326AbhFTVRF (ORCPT ); Sun, 20 Jun 2021 17:17:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55298 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230087AbhFTVRF (ORCPT ); Sun, 20 Jun 2021 17:17:05 -0400 Received: from mail-lj1-x22b.google.com (mail-lj1-x22b.google.com [IPv6:2a00:1450:4864:20::22b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2602CC061756; Sun, 20 Jun 2021 14:14:50 -0700 (PDT) Received: by mail-lj1-x22b.google.com with SMTP id k8so22103788lja.4; Sun, 20 Jun 2021 14:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=OaHrTHwOZlGiJZp19fuqPfINJsoeOnFyeJ/MKkylnkI=; b=iPkoimYP4z9sTNire4AhXY0aCkbJ5pbS8R+a6ry1JodIl3ds76CfjrflELzpEVLLId OzUgSIL5qtEhSttFWqkPNyOzXEg4xdlHV9so5ChOlllIPUePLsIQFAAq9h+TDFJtuMXH 9QTgYZI7Y8KuET13pYAaAKqu411jNf5Ov0S8F2hiJdRg2pSpg6wFOvDDB3xHA+xYXuJa rDchnNoTvVd5pjDP7m1fWKEF/rKQxenTxgyLFxh+QbJ5+r2DTNeZGHWJ0JXqhgK+zFTL E9SEt5iKgyGEr/VVqqKidZQXSOTL2KsJA31eALaTj4quzzx8L/VkCPD6DGv7QRW12gvU kaSA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=OaHrTHwOZlGiJZp19fuqPfINJsoeOnFyeJ/MKkylnkI=; b=KAmElPBUUUsPDs1lu6TFjt9ZHnz1yn9/yvH7bBJXcSuKQkq0tDmd5/U5VCAsBBT8dm 15zT5QmFHw+1hwCIqaG3AiZCRKCMhRhW7fhF2/gpzptUUAuRQ2wCLL3Yf7LaxwdixqSA oAvsO6BgKYldGGx8MQZM4UNWL6X6qfsrUc8/kRUYI2cUKR6rBi4K8T2UVUfhESUp824U Wp62MZfuAuSQrrIHzvE1jF4VvV3KtZo41v+nVJsFiA62mXFA2/24eyR0ocx83BbveM9S 955HbS+ahkbtpdbEK4XGu/FdrQq33NPiAaGQeucGSRp/xphW97SZdnlxBbI3nhEN5zTM xXYg== X-Gm-Message-State: AOAM530j7bJ7rnpHubPFvnXfkzfEQaqAzx90Xpz4At/+/wCTvcnjldqf j/LR6bqMw6vI2vOxQMaNxpw= X-Google-Smtp-Source: ABdhPJw+HUMlOU61q30lHlP5RWjBED6i428QQkPQOH8N1NCWH8MrgB45qDJjRmDlZkaWaKEBTNieFA== X-Received: by 2002:a2e:9617:: with SMTP id v23mr19080605ljh.409.1624223688456; Sun, 20 Jun 2021 14:14:48 -0700 (PDT) Received: from localhost.localdomain (94-29-29-31.dynamic.spd-mgts.ru. [94.29.29.31]) by smtp.gmail.com with ESMTPSA id o142sm62875lfa.299.2021.06.20.14.14.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 20 Jun 2021 14:14:47 -0700 (PDT) From: Dmitry Osipenko To: Zhang Rui , Daniel Lezcano , Amit Kucheria , Jean Delvare , Guenter Roeck Cc: linux-hwmon@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, linux-tegra@vger.kernel.org Subject: [PATCH v2 2/2] hwmon: Support set_trips() of thermal device ops Date: Mon, 21 Jun 2021 00:14:08 +0300 Message-Id: <20210620211408.3893-3-digetx@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210620211408.3893-1-digetx@gmail.com> References: <20210620211408.3893-1-digetx@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org Support set_trips() callback of thermal device ops. This allows HWMON device to operatively notify thermal core about temperature changes, which is very handy to have in a case where HWMON sensor is used by CPU thermal zone that performs passive cooling and emergency shutdown on overheat. Thermal core will be able to react faster to temperature changes. Signed-off-by: Dmitry Osipenko --- drivers/hwmon/hwmon.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index fd47ab4e6892..e74dc81e650d 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -153,8 +153,40 @@ static int hwmon_thermal_get_temp(void *data, int *temp) return 0; } +static int hwmon_thermal_set_trips(void *data, int low, int high) +{ + struct hwmon_thermal_data *tdata = data; + struct hwmon_device *hwdev = to_hwmon_device(tdata->dev); + const struct hwmon_chip_info *chip = hwdev->chip; + const struct hwmon_channel_info **info = chip->info; + unsigned int i; + + if (!chip->ops->write) + return 0; + + for (i = 1; info[i] && info[i]->type != hwmon_temp; i++) + continue; + + if (info[i] && info[i]->config[tdata->index] & HWMON_T_MIN) { + int err = chip->ops->write(tdata->dev, hwmon_temp, + hwmon_temp_min, tdata->index, low); + if (err < 0 && err != -EOPNOTSUPP) + return err; + } + + if (info[i] && info[i]->config[tdata->index] & HWMON_T_MAX) { + int err = chip->ops->write(tdata->dev, hwmon_temp, + hwmon_temp_max, tdata->index, high); + if (err < 0 && err != -EOPNOTSUPP) + return err; + } + + return 0; +} + static const struct thermal_zone_of_device_ops hwmon_thermal_ops = { .get_temp = hwmon_thermal_get_temp, + .set_trips = hwmon_thermal_set_trips, }; static void hwmon_thermal_remove_sensor(void *data) -- 2.30.2