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=-9.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 57AD1C43381 for ; Tue, 19 Feb 2019 04:27:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 250CE2147A for ; Tue, 19 Feb 2019 04:27:34 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=nvidia.com header.i=@nvidia.com header.b="C2P3GGYG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726543AbfBSE1c (ORCPT ); Mon, 18 Feb 2019 23:27:32 -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 Content-Type: text/plain 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-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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) -- 2.7.4