From patchwork Tue Feb 19 04:27:04 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wei Ni X-Patchwork-Id: 10819173 X-Patchwork-Delegate: eduardo.valentin@ti.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C54ED13B5 for ; Tue, 19 Feb 2019 04:27:31 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B1FD52BA1B for ; Tue, 19 Feb 2019 04:27:31 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A5B082BA34; Tue, 19 Feb 2019 04:27:31 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 470062BA1B for ; Tue, 19 Feb 2019 04:27:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726461AbfBSE13 (ORCPT ); Mon, 18 Feb 2019 23:27:29 -0500 Received: from hqemgate15.nvidia.com ([216.228.121.64]:14039 "EHLO hqemgate15.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726452AbfBSE13 (ORCPT ); Mon, 18 Feb 2019 23:27:29 -0500 Received: from hqpgpgate101.nvidia.com (Not Verified[216.228.121.13]) by hqemgate15.nvidia.com (using TLS: TLSv1.2, DES-CBC3-SHA) id ; Mon, 18 Feb 2019 20:27:28 -0800 Received: from hqmail.nvidia.com ([172.20.161.6]) by hqpgpgate101.nvidia.com (PGP Universal service); Mon, 18 Feb 2019 20:27:28 -0800 X-PGP-Universal: processed; by hqpgpgate101.nvidia.com on Mon, 18 Feb 2019 20:27:28 -0800 Received: from HQMAIL102.nvidia.com (172.18.146.10) by HQMAIL101.nvidia.com (172.20.187.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 19 Feb 2019 04:27:28 +0000 Received: from HQMAIL104.nvidia.com (172.18.146.11) by HQMAIL102.nvidia.com (172.18.146.10) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 19 Feb 2019 04:27:27 +0000 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by HQMAIL104.nvidia.com (172.18.146.11) with Microsoft SMTP Server (TLS) id 15.0.1395.4 via Frontend Transport; Tue, 19 Feb 2019 04:27:27 +0000 Received: from niwei-ubuntu.nvidia.com (Not Verified[10.19.225.182]) by hqnvemgw02.nvidia.com with Trustwave SEG (v7,5,8,10121) id ; Mon, 18 Feb 2019 20:27:27 -0800 From: Wei Ni To: , , CC: , , , , , , Wei Ni Subject: [PATCH v8 3/3] thermal: tegra: add get_trend ops Date: Tue, 19 Feb 2019 12:27:04 +0800 Message-ID: <1550550424-7979-4-git-send-email-wni@nvidia.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1550550424-7979-1-git-send-email-wni@nvidia.com> References: <1550550424-7979-1-git-send-email-wni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=nvidia.com; s=n1; t=1550550448; bh=MXUJIjHbG+ZKGPfT8LRa84XRIYBLZT6uhPgUFP3p22U=; h=X-PGP-Universal:From:To:CC:Subject:Date:Message-ID:X-Mailer: In-Reply-To:References:X-NVConfidentiality:MIME-Version: Content-Type; b=C2P3GGYGrEKAzKce/dS+a9LopiBFiBlS6ZEbZKklalIgLhwXa0A2sQaf6frhsvcwc MjP9N3vVym5qXC0T67OyPxKvMFhMPK0ARQ6XnCbudOP3nXH3YB5xun90Rzq20kqUFp PFr2jelkYjEuWd+emi0uSNV8dhC2ofWYYjwOWC42OeDwuVBF3WbcUkWheroAPIx2XM dnc4nT2odECcjDUMKgKFoD11cOAnJB0zVBgo/T06oFBADfCuJs1UuaX6ZBA+gxrouX TPJBQLpXvgFLD1+o8wrzb9/MNbJtb/HwfCnX0J3E6TI5qZlleBoCATp/DCCvy8A6Gw p6JZF8clpMlag== Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add support for get_trend ops that allows soctherm sensors to be used with the step-wise governor. Signed-off-by: Wei Ni --- drivers/thermal/tegra/soctherm.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c index b1ead6ea4c73..70043a28eb7a 100644 --- a/drivers/thermal/tegra/soctherm.c +++ b/drivers/thermal/tegra/soctherm.c @@ -488,9 +488,41 @@ static int tegra_thermctl_set_trip_temp(void *data, int trip, int temp) return 0; } +static int tegra_thermctl_get_trend(void *data, int trip, + enum thermal_trend *trend) +{ + struct tegra_thermctl_zone *zone = data; + struct thermal_zone_device *tz = zone->tz; + int trip_temp, temp, last_temp, ret; + + if (!tz) + return -EINVAL; + + ret = tz->ops->get_trip_temp(zone->tz, trip, &trip_temp); + if (ret) + return ret; + + temp = READ_ONCE(tz->temperature); + last_temp = READ_ONCE(tz->last_temperature); + + if (temp > trip_temp) { + if (temp >= last_temp) + *trend = THERMAL_TREND_RAISING; + else + *trend = THERMAL_TREND_STABLE; + } else if (temp < trip_temp) { + *trend = THERMAL_TREND_DROPPING; + } else { + *trend = THERMAL_TREND_STABLE; + } + + return 0; +} + static const struct thermal_zone_of_device_ops tegra_of_thermal_ops = { .get_temp = tegra_thermctl_get_temp, .set_trip_temp = tegra_thermctl_set_trip_temp, + .get_trend = tegra_thermctl_get_trend, }; static int get_hot_temp(struct thermal_zone_device *tz, int *trip, int *temp)