From patchwork Fri Mar 17 15:53:00 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Niklas_S=C3=B6derlund?= X-Patchwork-Id: 9631029 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.web.codeaurora.org (Postfix) with ESMTP id BE49E602DA for ; Fri, 17 Mar 2017 16:02:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9A2E27C0B for ; Fri, 17 Mar 2017 16:02:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AE81627F17; Fri, 17 Mar 2017 16:02:27 +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=-6.9 required=2.0 tests=BAYES_00,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 5F69F27E5A for ; Fri, 17 Mar 2017 16:02:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751169AbdCQQCK (ORCPT ); Fri, 17 Mar 2017 12:02:10 -0400 Received: from smtp-4.sys.kth.se ([130.237.48.193]:56339 "EHLO smtp-4.sys.kth.se" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751065AbdCQQCG (ORCPT ); Fri, 17 Mar 2017 12:02:06 -0400 Received: from smtp-4.sys.kth.se (localhost.localdomain [127.0.0.1]) by smtp-4.sys.kth.se (Postfix) with ESMTP id 66A9835EC; Fri, 17 Mar 2017 16:53:24 +0100 (CET) X-Virus-Scanned: by amavisd-new at kth.se Received: from smtp-4.sys.kth.se ([127.0.0.1]) by smtp-4.sys.kth.se (smtp-4.sys.kth.se [127.0.0.1]) (amavisd-new, port 10024) with LMTP id hhajd-llWGhK; Fri, 17 Mar 2017 16:53:23 +0100 (CET) X-KTH-Auth: niso [89.233.230.99] X-KTH-mail-from: niklas.soderlund+renesas@ragnatech.se Received: from bismarck.berto.se (unknown [89.233.230.99]) by smtp-4.sys.kth.se (Postfix) with ESMTPSA id 95D5535A8; Fri, 17 Mar 2017 16:53:23 +0100 (CET) From: =?UTF-8?q?Niklas=20S=C3=B6derlund?= To: linux-pm@vger.kernel.org, Wolfram Sang Cc: linux-renesas-soc@vger.kernel.org, Zhang Rui , Eduardo Valentin , =?UTF-8?q?Niklas=20S=C3=B6derlund?= Subject: [PATCH v2 7/7] thermal: rcar_gen3_thermal: add suspend and resume support Date: Fri, 17 Mar 2017 16:53:00 +0100 Message-Id: <20170317155300.21566-8-niklas.soderlund+renesas@ragnatech.se> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20170317155300.21566-1-niklas.soderlund+renesas@ragnatech.se> References: <20170317155300.21566-1-niklas.soderlund+renesas@ragnatech.se> MIME-Version: 1.0 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 To restore operation it's easiest to reinitialise all TSCs. In order to do this the current trip window needs to be stored in the TSC structure so that it can be restored upon resume. Signed-off-by: Niklas Söderlund Reviewed-by: Wolfram Sang --- drivers/thermal/rcar_gen3_thermal.c | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/thermal/rcar_gen3_thermal.c b/drivers/thermal/rcar_gen3_thermal.c index 438fb9988eabb91b..b5e3d7b41629803c 100644 --- a/drivers/thermal/rcar_gen3_thermal.c +++ b/drivers/thermal/rcar_gen3_thermal.c @@ -82,6 +82,8 @@ struct rcar_gen3_thermal_tsc { void __iomem *base; struct thermal_zone_device *zone; struct equation_coefs coef; + int low; + int high; }; struct rcar_gen3_thermal_priv { @@ -217,6 +219,9 @@ static int rcar_gen3_thermal_set_trips(void *devdata, int low, int high) rcar_gen3_thermal_write(tsc, REG_GEN3_IRQTEMP2, rcar_gen3_thermal_mcelsius_to_temp(tsc, high)); + tsc->low = low; + tsc->high = high; + return 0; } @@ -450,9 +455,39 @@ static int rcar_gen3_thermal_probe(struct platform_device *pdev) return ret; } +static int __maybe_unused rcar_gen3_thermal_suspend(struct device *dev) +{ + struct rcar_gen3_thermal_priv *priv = dev_get_drvdata(dev); + + rcar_thermal_irq_set(priv, 0); + + return 0; +} + +static int __maybe_unused rcar_gen3_thermal_resume(struct device *dev) +{ + struct rcar_gen3_thermal_priv *priv = dev_get_drvdata(dev); + unsigned int i; + + for (i = 0; i < priv->num_tscs; i++) { + struct rcar_gen3_thermal_tsc *tsc = priv->tscs[i]; + + priv->data->thermal_init(tsc); + rcar_gen3_thermal_set_trips(tsc, tsc->low, tsc->high); + } + + rcar_thermal_irq_set(priv, 1); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(rcar_gen3_thermal_pm_ops, rcar_gen3_thermal_suspend, + rcar_gen3_thermal_resume); + static struct platform_driver rcar_gen3_thermal_driver = { .driver = { .name = "rcar_gen3_thermal", + .pm = &rcar_gen3_thermal_pm_ops, .of_match_table = rcar_gen3_thermal_dt_ids, }, .probe = rcar_gen3_thermal_probe,