From patchwork Thu May 5 08:51:42 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajendra Nayak X-Patchwork-Id: 9022001 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C590B9F30C for ; Thu, 5 May 2016 08:54:57 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id D7633203F3 for ; Thu, 5 May 2016 08:54:56 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id D7D04203E3 for ; Thu, 5 May 2016 08:54:55 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1ayF27-0002vQ-GW; Thu, 05 May 2016 08:53:19 +0000 Received: from smtp.codeaurora.org ([198.145.29.96]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1ayF1l-0002Vy-O1 for linux-arm-kernel@lists.infradead.org; Thu, 05 May 2016 08:52:58 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 70A8D6135E; Thu, 5 May 2016 08:52:39 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Spam-Level: X-Spam-Status: No, score=-6.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 Received: from blr-ubuntu-34.ap.qualcomm.com (unknown [202.46.23.61]) (using TLSv1.1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: rnayak@smtp.codeaurora.org) by smtp.codeaurora.org (Postfix) with ESMTPSA id D22C26131B; Thu, 5 May 2016 08:52:33 +0000 (UTC) From: Rajendra Nayak To: edubezval@gmail.com, andy.gross@linaro.org Subject: [PATCH v6 04/11] thermal: core: export apis to get slope and offset Date: Thu, 5 May 2016 14:21:42 +0530 Message-Id: <1462438309-11196-5-git-send-email-rnayak@codeaurora.org> X-Mailer: git-send-email 1.8.2.1 In-Reply-To: <1462438309-11196-1-git-send-email-rnayak@codeaurora.org> References: <1462438309-11196-1-git-send-email-rnayak@codeaurora.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160505_015257_834245_43018F16 X-CRM114-Status: GOOD ( 15.11 ) X-Spam-Score: -4.0 (----) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Rajendra Nayak , linux-pm@vger.kernel.org, linux-arm-msm@vger.kernel.org, punit.agrawal@arm.com, sboyd@codeaurora.org, lina.iyer@linaro.org, nrajan@codeaurora.org, rui.zhang@intel.com, linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Add apis for platform thermal drivers to query for slope and offset attributes, which might be needed for temperature calculations. Signed-off-by: Rajendra Nayak --- Documentation/thermal/sysfs-api.txt | 12 ++++++++++++ drivers/thermal/thermal_core.c | 30 ++++++++++++++++++++++++++++++ include/linux/thermal.h | 8 ++++++++ 3 files changed, 50 insertions(+) diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt index ed419d6..3450cb0 100644 --- a/Documentation/thermal/sysfs-api.txt +++ b/Documentation/thermal/sysfs-api.txt @@ -140,6 +140,18 @@ temperature) and throttle appropriate devices. Normally this function will not need to be called and the resource management code will ensure that the resource is freed. +1.1.7 int thermal_zone_get_slope(struct thermal_zone_device *tz) + + This interface is used to read the slope attribute value + for the thermal zone device, which might be useful for platform + drivers for temperature calculations. + +1.1.8 int thermal_zone_get_offset(struct thermal_zone_device *tz) + + This interface is used to read the offset attribute value + for the thermal zone device, which might be useful for platform + drivers for temperature calculations. + 1.2 thermal cooling device interface 1.2.1 struct thermal_cooling_device *thermal_cooling_device_register(char *name, void *devdata, struct thermal_cooling_device_ops *) diff --git a/drivers/thermal/thermal_core.c b/drivers/thermal/thermal_core.c index 5133cd1..b118aae 100644 --- a/drivers/thermal/thermal_core.c +++ b/drivers/thermal/thermal_core.c @@ -2065,6 +2065,36 @@ exit: } EXPORT_SYMBOL_GPL(thermal_zone_get_zone_by_name); +/** + * thermal_zone_get_slope - return the slope attribute of the thermal zone + * @tz: thermal zone device with the slope attribute + * + * Return: If the thermal zone device has a slope attribute, return it, else + * return 1. + */ +int thermal_zone_get_slope(struct thermal_zone_device *tz) +{ + if (tz && tz->tzp) + return tz->tzp->slope; + return 1; +} +EXPORT_SYMBOL_GPL(thermal_zone_get_slope); + +/** + * thermal_zone_get_offset - return the offset attribute of the thermal zone + * @tz: thermal zone device with the offset attribute + * + * Return: If the thermal zone device has a offset attribute, return it, else + * return 0. + */ +int thermal_zone_get_offset(struct thermal_zone_device *tz) +{ + if (tz && tz->tzp) + return tz->tzp->offset; + return 0; +} +EXPORT_SYMBOL_GPL(thermal_zone_get_offset); + #ifdef CONFIG_NET static const struct genl_multicast_group thermal_event_mcgrps[] = { { .name = THERMAL_GENL_MCAST_GROUP_NAME, }, diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 1b8a5a7..fd206b9 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -432,6 +432,8 @@ thermal_of_cooling_device_register(struct device_node *np, char *, void *, void thermal_cooling_device_unregister(struct thermal_cooling_device *); struct thermal_zone_device *thermal_zone_get_zone_by_name(const char *name); 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); int get_tz_trend(struct thermal_zone_device *, int); struct thermal_instance *get_thermal_instance(struct thermal_zone_device *, @@ -489,6 +491,12 @@ static inline struct thermal_zone_device *thermal_zone_get_zone_by_name( static inline int thermal_zone_get_temp( struct thermal_zone_device *tz, int *temp) { return -ENODEV; } +static inline int thermal_zone_get_slope( + struct thermal_zone_device *tz) +{ return -ENODEV; } +static inline int thermal_zone_get_offset( + struct thermal_zone_device *tz) +{ return -ENODEV; } static inline int get_tz_trend(struct thermal_zone_device *tz, int trip) { return -ENODEV; } static inline struct thermal_instance *