From patchwork Tue May 7 13:00:58 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Amit Kachhap X-Patchwork-Id: 2533541 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id 8A231DF215 for ; Tue, 7 May 2013 13:06:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932337Ab3EGNCQ (ORCPT ); Tue, 7 May 2013 09:02:16 -0400 Received: from mail-pb0-f51.google.com ([209.85.160.51]:43933 "EHLO mail-pb0-f51.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932151Ab3EGNCO (ORCPT ); Tue, 7 May 2013 09:02:14 -0400 Received: by mail-pb0-f51.google.com with SMTP id wy7so384216pbc.10 for ; Tue, 07 May 2013 06:02:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=x-received:sender:from:to:cc:subject:date:message-id:x-mailer :in-reply-to:references; bh=HNc6gY/xIpKOSBLswSYKjqRIMqUiweHmf0g5afGT//g=; b=foBsz99eCVsiB9GiNtXRjK/iS+sKj/Y1I+y4zw5XEMCFheeOAhf3OaFU6BysmGx3pr Uxoti5sDqK9XK2kS56KWS1yl6Wjf98cvDBVyfI/XFGlXYtCCtcY1KxST39b1ipuOSba0 bWzZtgcEBFtsREGRaDrIvikzKLqJt/7i/lBO53kVFgcm0GnspkNlUxuK7893U5m8FuH8 46FugKpL6RqaJUO15uTiMtAi4ZfMGMDla6hUM54D+hx+yYlBo6M4UwLkdoFYWL1A+WgC Ud7yYeAXGxxVKo4gPaHq9W9PEhcx6L8iTuxxB+NFWRt275DMcXZ0D/fKKFvxeJeNJyRi Ky5g== X-Received: by 10.66.145.134 with SMTP id su6mr2650361pab.198.1367931733449; Tue, 07 May 2013 06:02:13 -0700 (PDT) Received: from localhost.localdomain ([115.113.119.130]) by mx.google.com with ESMTPSA id l4sm28220809pbo.6.2013.05.07.06.02.08 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Tue, 07 May 2013 06:02:12 -0700 (PDT) From: Amit Daniel Kachhap To: linux-pm@vger.kernel.org Cc: Zhang Rui , linux-samsung-soc@vger.kernel.org, linux-kernel@vger.kernel.org, amit.kachhap@gmail.com, Kukjin Kim , Eduardo Valentin Subject: [PATCH V3 08/21] thermal: exynos: Support thermal tripping Date: Tue, 7 May 2013 18:30:58 +0530 Message-Id: <1367931671-3906-9-git-send-email-amit.daniel@samsung.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1367931671-3906-1-git-send-email-amit.daniel@samsung.com> References: <1367931671-3906-1-git-send-email-amit.daniel@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org TMU urgently sends active-high signal (thermal trip) to PMU, and thermal tripping by hardware logic. Thermal tripping means that PMU cuts off the whole power of SoC by controlling external voltage regulator. Acked-by: Kukjin Kim Signed-off-by: Jonghwan Choi Signed-off-by: Amit Daniel Kachhap --- drivers/thermal/samsung/exynos_tmu.c | 8 +++++++- drivers/thermal/samsung/exynos_tmu_data.c | 2 ++ 2 files changed, 9 insertions(+), 1 deletions(-) diff --git a/drivers/thermal/samsung/exynos_tmu.c b/drivers/thermal/samsung/exynos_tmu.c index 77b6a37..23baeeb 100644 --- a/drivers/thermal/samsung/exynos_tmu.c +++ b/drivers/thermal/samsung/exynos_tmu.c @@ -88,6 +88,7 @@ #define EXYNOS_TMU_CLEAR_FALL_INT (0x111 << 12) #define EXYNOS_TMU_TRIP_MODE_SHIFT 13 #define EXYNOS_TMU_TRIP_MODE_MASK 0x7 +#define EXYNOS_TMU_THERM_TRIP_EN_SHIFT 12 #define EXYNOS_TMU_INTEN_RISE0_SHIFT 0 #define EXYNOS_TMU_INTEN_RISE1_SHIFT 4 @@ -190,7 +191,7 @@ static int exynos_tmu_initialize(struct platform_device *pdev) { struct exynos_tmu_data *data = platform_get_drvdata(pdev); struct exynos_tmu_platform_data *pdata = data->pdata; - unsigned int status, trim_info; + unsigned int status, trim_info, con; unsigned int rising_threshold = 0, falling_threshold = 0; int ret = 0, threshold_code, i, trigger_levs = 0; @@ -255,6 +256,11 @@ static int exynos_tmu_initialize(struct platform_device *pdev) falling_threshold |= threshold_code << 8 * i; } + if (pdata->trigger_type[i] != HW_TRIP) + continue; + con = readl(data->base + EXYNOS_TMU_REG_CONTROL); + con |= (1 << EXYNOS_TMU_THERM_TRIP_EN_SHIFT); + writel(con, data->base + EXYNOS_TMU_REG_CONTROL); } writel(rising_threshold, diff --git a/drivers/thermal/samsung/exynos_tmu_data.c b/drivers/thermal/samsung/exynos_tmu_data.c index ee6a3c9..6b937f5 100644 --- a/drivers/thermal/samsung/exynos_tmu_data.c +++ b/drivers/thermal/samsung/exynos_tmu_data.c @@ -64,6 +64,7 @@ struct exynos_tmu_platform_data const exynos5250_default_tmu_data = { .trigger_levels[0] = 85, .trigger_levels[1] = 103, .trigger_levels[2] = 110, + .trigger_levels[3] = 120, .trigger_enable[0] = 1, .trigger_enable[1] = 1, .trigger_enable[2] = 1, @@ -71,6 +72,7 @@ struct exynos_tmu_platform_data const exynos5250_default_tmu_data = { .trigger_type[0] = 0, .trigger_type[1] = 0, .trigger_type[2] = 1, + .trigger_type[3] = 2, .gain = 8, .reference_voltage = 16, .noise_cancel_mode = 4,