From patchwork Thu Nov 13 17:02:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 5299401 X-Patchwork-Delegate: eduardo.valentin@ti.com Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 57EF39F2F1 for ; Thu, 13 Nov 2014 17:05:49 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0C9452021B for ; Thu, 13 Nov 2014 17:05:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8324C20219 for ; Thu, 13 Nov 2014 17:05:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754171AbaKMRDR (ORCPT ); Thu, 13 Nov 2014 12:03:17 -0500 Received: from mailout4.samsung.com ([203.254.224.34]:48897 "EHLO mailout4.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753543AbaKMRDO (ORCPT ); Thu, 13 Nov 2014 12:03:14 -0500 Received: from epcpsbgm1.samsung.com (epcpsbgm1 [203.254.230.26]) by mailout4.samsung.com (Oracle Communications Messaging Server 7u4-24.01(7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTP id <0NEZ008WIM1C6B10@mailout4.samsung.com>; Fri, 14 Nov 2014 02:03:13 +0900 (KST) X-AuditID: cbfee61a-f79c06d000004e71-52-5464e450fabd Received: from epmmp2 ( [203.254.227.17]) by epcpsbgm1.samsung.com (EPCPMTA) with SMTP id 8B.08.20081.054E4645; Fri, 14 Nov 2014 02:03:12 +0900 (KST) Received: from mcdsrvbld02.digital.local ([106.116.37.23]) by mmp2.samsung.com (Oracle Communications Messaging Server 7u4-24.01 (7.0.4.24.0) 64bit (built Nov 17 2011)) with ESMTPA id <0NEZ00JCWM0NNZ60@mmp2.samsung.com>; Fri, 14 Nov 2014 02:03:12 +0900 (KST) From: Lukasz Majewski To: Eduardo Valentin , Zhang Rui Cc: Ezequiel Garcia , Kuninori Morimoto , Linux PM list , Vincenzo Frascino , Bartlomiej Zolnierkiewicz , Lukasz Majewski , Nobuhiro Iwamatsu , Mikko Perttunen , Stephen Warren , Thierry Reding , Alexandre Courbot , linux-tegra@vger.kernel.org, linux-kernel@vger.kernel.org, Lukasz Majewski Subject: [PATCH 2/8] thermal:cpu cooling:kirkwood: Provide deferred probing for kirkwood driver Date: Thu, 13 Nov 2014 18:02:39 +0100 Message-id: <1415898165-27406-3-git-send-email-l.majewski@samsung.com> X-Mailer: git-send-email 1.7.10.4 In-reply-to: <1415898165-27406-1-git-send-email-l.majewski@samsung.com> References: <1411547232-21493-1-git-send-email-l.majewski@samsung.com> <1415898165-27406-1-git-send-email-l.majewski@samsung.com> X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFrrLLMWRmVeSWpSXmKPExsVy+t9jQd2AJykhBqs7jC02zljPajH/yjVW i9OnFrBanHv1iMXibXOxxavDuxgt3jzitnjzcDOjxeVdc9gsPvceYbTo/DKLzeLB1WlsFk8e 9rFZvDrYxmLxc9c8FotjJ2awOgh4PNl0kdFj56y77B6L97xk8lg37S2zx4HJ51g9epvfsXl8 OzORxaNvyypGj6c/9jJ7fN4k57FxbmgAdxSXTUpqTmZZapG+XQJXxup3q5kLNnJWHNo4k7GB 8Tt7FyMnh4SAicSkuZNYIWwxiQv31rN1MXJxCAlMZ5T4d7KFEcLpYpL4eOAOWBWbgJ7E57tP mUBsEQFvidf7poMVMQu8ZpE49KMBaCwHh7BAosTGOSUgNSwCqhJPVzUwg9i8Am4SXTdXskFs U5TofjYBzOYUcJc4euITO8SyZkaJz32zWCcw8i5gZFjFKJpakFxQnJSea6hXnJhbXJqXrpec n7uJERzoz6R2MK5ssDjEKMDBqMTD+4IlJUSINbGsuDL3EKMEB7OSCG/1faAQb0piZVVqUX58 UWlOavEhRmkOFiVx3gOt1oFCAumJJanZqakFqUUwWSYOTqkGxrkxwqapjDoST1wKb7+ZHBo8 32N345njmZP/3bKzWhymqmV1cdK6b/feK8SdcBHUM9Zdzp8ivsPmOZO+3Qvh0y9nMfxNe+yu fDZyhfB2B4cr/zZ0n5L723rMxvGVUlvmn8gHi99OuWlm17JHWan7O9/nOHt9a+lLi4r2CFrb Vi6+ffju/VW5FkosxRmJhlrMRcWJAD2tgtZwAgAA Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-7.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP When CPU freq is used as a thermal zone cooling device, one needs to wait until cpufreq subsystem is properly initialized. This code is similar to the one already available in imx_thermal.c file. Signed-off-by: Lukasz Majewski --- drivers/thermal/kirkwood_thermal.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/thermal/kirkwood_thermal.c b/drivers/thermal/kirkwood_thermal.c index 3b034a0..e938291 100644 --- a/drivers/thermal/kirkwood_thermal.c +++ b/drivers/thermal/kirkwood_thermal.c @@ -21,6 +21,7 @@ #include #include #include +#include #define KIRKWOOD_THERMAL_VALID_OFFSET 9 #define KIRKWOOD_THERMAL_VALID_MASK 0x1 @@ -75,6 +76,12 @@ static int kirkwood_thermal_probe(struct platform_device *pdev) struct kirkwood_thermal_priv *priv; struct resource *res; +#ifdef CONFIG_CPU_THERMAL + if (!cpufreq_get_current_driver()) { + dev_dbg(&pdev->dev, "no cpufreq driver!"); + return -EPROBE_DEFER; + } +#endif priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); if (!priv) return -ENOMEM;