Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756834AbcC2Ke3 (ORCPT ); Tue, 29 Mar 2016 06:34:29 -0400 Received: from nat-hk.nvidia.com ([203.18.50.4]:6313 "EHLO hkmmgate101.nvidia.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753209AbcC2KeY (ORCPT ); Tue, 29 Mar 2016 06:34:24 -0400 X-PGP-Universal: processed; by hkpgpgate102.nvidia.com on Tue, 29 Mar 2016 03:34:21 -0700 From: Wei Ni To: , , CC: , , , , , , Wei Ni Subject: [PATCH V9 RESEND 12/14] thermal: tegra: add PM support Date: Tue, 29 Mar 2016 18:29:22 +0800 Message-ID: <1459247364-1139-13-git-send-email-wni@nvidia.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1459247364-1139-1-git-send-email-wni@nvidia.com> References: <1459247364-1139-1-git-send-email-wni@nvidia.com> X-NVConfidentiality: public MIME-Version: 1.0 X-Originating-IP: [10.19.224.146] X-ClientProxiedBy: HKMAIL102.nvidia.com (10.18.16.11) To HKMAIL101.nvidia.com (10.18.16.10) Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2418 Lines: 92 Add suspend/resume function in soctherm driver. Signed-off-by: Wei Ni --- drivers/thermal/tegra/soctherm.c | 46 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) diff --git a/drivers/thermal/tegra/soctherm.c b/drivers/thermal/tegra/soctherm.c index d2b7c255d71f..559c74279eb8 100644 --- a/drivers/thermal/tegra/soctherm.c +++ b/drivers/thermal/tegra/soctherm.c @@ -88,6 +88,7 @@ struct tegra_soctherm { struct clk *clock_tsensor; struct clk *clock_soctherm; void __iomem *regs; + struct thermal_zone_device **thermctl_tzs; u32 *calib; struct tegra_soctherm_soc *soc; @@ -566,6 +567,12 @@ static int tegra_soctherm_probe(struct platform_device *pdev) return err; } + tegra->thermctl_tzs = devm_kzalloc(&pdev->dev, + sizeof(*z) * soc->num_ttgs, + GFP_KERNEL); + if (!tegra->thermctl_tzs) + return -ENOMEM; + err = soctherm_clk_enable(pdev, true); if (err) return err; @@ -595,6 +602,7 @@ static int tegra_soctherm_probe(struct platform_device *pdev) } zone->tz = z; + tegra->thermctl_tzs[soc->ttgs[i]->id] = z; /* Configure hw trip points */ tegra_soctherm_set_hwtrips(&pdev->dev, soc->ttgs[i], z); @@ -621,11 +629,49 @@ static int tegra_soctherm_remove(struct platform_device *pdev) return 0; } +static int soctherm_suspend(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + + soctherm_clk_enable(pdev, false); + + return 0; +} + +static int soctherm_resume(struct device *dev) +{ + struct platform_device *pdev = to_platform_device(dev); + struct tegra_soctherm *tegra = platform_get_drvdata(pdev); + struct tegra_soctherm_soc *soc = tegra->soc; + int err, i; + + err = soctherm_clk_enable(pdev, true); + if (err) { + dev_err(&pdev->dev, + "Resume failed: enable clocks failed\n"); + return err; + } + + soctherm_init(pdev); + + for (i = 0; i < soc->num_ttgs; ++i) { + struct thermal_zone_device *tz; + + tz = tegra->thermctl_tzs[soc->ttgs[i]->id]; + tegra_soctherm_set_hwtrips(dev, soc->ttgs[i], tz); + } + + return 0; +} + +static SIMPLE_DEV_PM_OPS(tegra_soctherm_pm, soctherm_suspend, soctherm_resume); + static struct platform_driver tegra_soctherm_driver = { .probe = tegra_soctherm_probe, .remove = tegra_soctherm_remove, .driver = { .name = "tegra_soctherm", + .pm = &tegra_soctherm_pm, .of_match_table = tegra_soctherm_of_match, }, }; -- 1.9.1