From patchwork Fri May 27 08:23:25 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Caesar Wang X-Patchwork-Id: 9137847 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 8F8A8607DA for ; Fri, 27 May 2016 08:24:14 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7EDC02780C for ; Fri, 27 May 2016 08:24:14 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 713A6281C2; Fri, 27 May 2016 08:24:14 +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=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 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.wl.linuxfoundation.org (Postfix) with ESMTPS id D1E8027CCD for ; Fri, 27 May 2016 08:24:12 +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 1b6D40-0001Pc-F0; Fri, 27 May 2016 08:24:12 +0000 Received: from mail-pf0-f195.google.com ([209.85.192.195]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1b6D3v-0001IH-N9 for linux-rockchip@lists.infradead.org; Fri, 27 May 2016 08:24:09 +0000 Received: by mail-pf0-f195.google.com with SMTP id b124so11733905pfb.0 for ; Fri, 27 May 2016 01:23:47 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=zLAlaT0nJ8j90TuNGRd3frTpvEIUYDjOlP4cW9p1Kc0=; b=d+TiIohmnDgk1HYnrqIHRDdOoRq7R38xecQYqX6G4x1GkwkVwUIh5AGH35/0AEJdXR d8Foi03l4xwsDjI/auuabY7guvH1MS0TT52VYdx0k7Ghhr+m+7BaPTS24m23Spmn35AI LsZCNyA6sVrvAA+zAZfSPAFptSwiVzLDi5KlWWNbH8hIpKNFFADS9j9PfUXgYYH062E+ 8t3ZtDLIJntlb+8NoeQwfai3hPUBnc2ouTVh1Jmr9qFeKC1EG7upoKDbqzWXhnq+kGCI doZUIRjSMijW/MTooztB6LDOT0O+8gT2QabBPWVZajMQGWSP2yxqyb/bE2FNu/0BBAR6 j7rA== X-Gm-Message-State: ALyK8tJ4Xyyp5XzthKszTAPNaFf9BJLTcSBKzCas2NzoaJF1leos7x9wPNq+Xlk6OuMcmw== X-Received: by 10.98.83.199 with SMTP id h190mr20275902pfb.15.1464337426532; Fri, 27 May 2016 01:23:46 -0700 (PDT) Received: from localhost.localdomain ([103.29.142.67]) by smtp.gmail.com with ESMTPSA id w27sm11551805pfi.24.2016.05.27.01.23.41 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Fri, 27 May 2016 01:23:45 -0700 (PDT) From: Caesar Wang To: edubezval@gmail.com, linux-pm@vger.kernel.org Subject: [PATCH v4 1/4] thermal: of: implement .set_trips for device tree thermal zones Date: Fri, 27 May 2016 16:23:25 +0800 Message-Id: <1464337408-7123-2-git-send-email-wxt@rock-chips.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1464337408-7123-1-git-send-email-wxt@rock-chips.com> References: <1464337408-7123-1-git-send-email-wxt@rock-chips.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20160527_012407_952143_77FC3C72 X-CRM114-Status: GOOD ( 14.64 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: huangtao@rock-chips.com, javi.merino@arm.com, Heiko Stuebner , Sascha Hauer , dmitry.torokhov@gmail.com, peter@piie.net, dianders@chromium.org, linux-kernel@vger.kernel.org, linux-rockchip@lists.infradead.org, smbarber@google.com, cf@rock-chips.com, briannorris@google.com, Zhang Rui , Caesar Wang MIME-Version: 1.0 Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Sascha Hauer This patch implements .set_trips for device tree thermal zones. As the hardware-tracked trip points is supported by thermal core patch[0]. patch[0] "thermal: Add support for hardware-tracked trip points". Signed-off-by: Sascha Hauer Signed-off-by: Caesar Wang Cc: Zhang Rui Cc: Eduardo Valentin Reviewed-by: Javi Merino --- Changes in v4: - as the Javi comments, %s/implemnets/implements. Changes in v3: - as the Javi comments on https://patchwork.kernel.org/patch/9001311/. - add the select if they set the option for devicetree. Changes in v2: - add the commit in patch[v2 2/5]. drivers/thermal/of-thermal.c | 19 +++++++++++++++++++ include/linux/thermal.h | 4 ++++ 2 files changed, 23 insertions(+) diff --git a/drivers/thermal/of-thermal.c b/drivers/thermal/of-thermal.c index b8e509c..2d2a06f 100644 --- a/drivers/thermal/of-thermal.c +++ b/drivers/thermal/of-thermal.c @@ -101,6 +101,17 @@ static int of_thermal_get_temp(struct thermal_zone_device *tz, return data->ops->get_temp(data->sensor_data, temp); } +static int of_thermal_set_trips(struct thermal_zone_device *tz, + int low, int high) +{ + struct __thermal_zone *data = tz->devdata; + + if (!data->ops || !data->ops->set_trips) + return -EINVAL; + + return data->ops->set_trips(data->sensor_data, low, high); +} + /** * of_thermal_get_ntrips - function to export number of available trip * points. @@ -427,6 +438,14 @@ thermal_zone_of_add_sensor(struct device_node *zone, tzd->ops->get_temp = of_thermal_get_temp; tzd->ops->get_trend = of_thermal_get_trend; + + /* + * The thermal zone core will calculate the window if they have set the + * optional set_trips pointer. + */ + if (ops->set_trips) + tzd->ops->set_trips = of_thermal_set_trips; + tzd->ops->set_emul_temp = of_thermal_set_emul_temp; mutex_unlock(&tzd->lock); diff --git a/include/linux/thermal.h b/include/linux/thermal.h index 635c4003..f68da05 100644 --- a/include/linux/thermal.h +++ b/include/linux/thermal.h @@ -340,12 +340,16 @@ struct thermal_genl_event { * * Optional: * @get_trend: a pointer to a function that reads the sensor temperature trend. + * @set_trips: a pointer to a function that sets a temperature window. When + * this window is left the driver must inform the thermal core via + * thermal_zone_device_update. * @set_emul_temp: a pointer to a function that sets sensor emulated * temperature. */ struct thermal_zone_of_device_ops { int (*get_temp)(void *, int *); int (*get_trend)(void *, long *); + int (*set_trips)(void *, int, int); int (*set_emul_temp)(void *, int); int (*set_trip_temp)(void *, int, int); };