From patchwork Mon Jun 24 10:50:42 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Kachhap X-Patchwork-Id: 2769881 X-Patchwork-Delegate: rui.zhang@intel.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 D8F8A9F245 for ; Mon, 24 Jun 2013 10:53:11 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 03D27201AF for ; Mon, 24 Jun 2013 10:53:11 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1AA502018B for ; Mon, 24 Jun 2013 10:53:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753259Ab3FXKwj (ORCPT ); Mon, 24 Jun 2013 06:52:39 -0400 Received: from mail-pb0-f50.google.com ([209.85.160.50]:47064 "EHLO mail-pb0-f50.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753250Ab3FXKwh (ORCPT ); Mon, 24 Jun 2013 06:52:37 -0400 Received: by mail-pb0-f50.google.com with SMTP id wz7so10855447pbc.37 for ; Mon, 24 Jun 2013 03:52:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references; bh=htNIuRkcZuwb68GdqJOFPTgaHyQlro5LnUlWsiXaK6c=; b=FiayosYek5eO98KG4XrCckPbH68UL6a+fMaK9/pMjuajz02QogswRv9T0iTl3KaIUi qtZqXzVNVwTexSVqYYmmEWGPZIs2F8fWeYI5ifRlJ7qIeDcSdUuU2kwQRMrhQldXf/Bl TtctsTINQiOnId2x87xwpUogMG+MGUU4sePuxeFePzMCdwzliJlsiyXFVzrDWt+Pzv9H ABJVA8ErW/IG0mRcSt6MWjkKYQqkBCT3aXE4Afs+43CmejuWmdbYfSogdK9RWwtYLkOj j2pg2LmZ78E/j3nKHEo1dfOPZQlvZlX8WmRRT02yrsh56rUtkyvZ8tdbIPopkcU7aHOS /1Kw== X-Received: by 10.68.110.163 with SMTP id ib3mr22844916pbb.196.1372071156910; Mon, 24 Jun 2013 03:52:36 -0700 (PDT) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id tq8sm17631973pbc.30.2013.06.24.03.52.33 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Mon, 24 Jun 2013 03:52:35 -0700 (PDT) From: Amit Daniel Kachhap To: linux-pm@vger.kernel.org, Zhang Rui , Eduardo Valentin Cc: linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.kachhap@gmail.com, Kukjin Kim Subject: [PATCH V7 21/30] thermal: exynos: Add support to access common register for multistance Date: Mon, 24 Jun 2013 16:20:42 +0530 Message-Id: <1372071051-3167-22-git-send-email-amit.daniel@samsung.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1372071051-3167-1-git-send-email-amit.daniel@samsung.com> References: <1372071051-3167-1-git-send-email-amit.daniel@samsung.com> 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,DKIM_SIGNED, RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID,UNPARSEABLE_RELAY autolearn=ham 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 This patch adds support to parse one more common set of TMU register. First set of register belongs to each instance of TMU and second set belongs to common TMU registers. Acked-by: Jonghwa Lee Acked-by: Kukjin Kim Acked-by: Eduardo Valentin Signed-off-by: Amit Daniel Kachhap --- drivers/thermal/samsung/exynos_tmu.c | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+), 0 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 05b95c6..31bf373 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -40,6 +40,7 @@ * @id: identifier of the one instance of the TMU controller. * @pdata: pointer to the tmu platform/configuration data * @base: base address of the single instance of the TMU controller. + * @base_common: base address of the common registers of the TMU controller. * @irq: irq number of the TMU controller. * @soc: id of the SOC type. * @irq_work: pointer to the irq work structure. @@ -53,6 +54,7 @@ struct exynos_tmu_data { int id; struct exynos_tmu_platform_data *pdata; void __iomem *base; + void __iomem *base_common; int irq; enum soc_type soc; struct work_struct irq_work; @@ -478,6 +480,24 @@ static int exynos_map_dt_data(struct platform_device *pdev) return -ENODEV; } data->pdata = pdata; + /* + * Check if the TMU shares some registers and then try to map the + * memory of common registers. + */ + if (!TMU_SUPPORTS(pdata, SHARED_MEMORY)) + return 0; + + if (of_address_to_resource(pdev->dev.of_node, 1, &res)) { + dev_err(&pdev->dev, "failed to get Resource 1\n"); + return -ENODEV; + } + + data->base_common = devm_ioremap(&pdev->dev, res.start, + resource_size(&res)); + if (!data->base) { + dev_err(&pdev->dev, "Failed to ioremap memory\n"); + return -ENOMEM; + } return 0; }