From patchwork Fri Nov 16 12:08:23 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AnilKumar Chimata X-Patchwork-Id: 199559 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from mail-oa0-f56.google.com (mail-oa0-f56.google.com [209.85.219.56]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 8C4A72C0093 for ; Fri, 16 Nov 2012 23:09:03 +1100 (EST) Received: by mail-oa0-f56.google.com with SMTP id j6sf1584920oag.11 for ; Fri, 16 Nov 2012 04:09:01 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=20120806; h=x-beenthere:received-spf:from:to:cc:subject:date:message-id :x-mailer:in-reply-to:references:mime-version:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-google-group-id:list-post:list-help:list-archive:sender :list-subscribe:list-unsubscribe:content-type; bh=WGyXJWdg4jQd9/ldGWjHZK2yN5t0M4yP2KpKIicqPYk=; b=pK/AFKBud3qLJCwkgANdEvJSocrl2vUpySK/NNoxy4v9HDcrLQrVPJ3YwsxndogZ+J V9Jh8ydpUzsVpCtWXw6wepfu8h1JmT/lG0tJKcST7UFA5eyWXrVc0xOpdON24zcFg37Z K9xrcCIJRyNnhiUemE9XvW4VGRmOgmNl0j2HdarQtrskpmlYpo5AAgaYfrCQflWAu5Gx V5Rz+HmWPs/DZBApBsYo8g6bFwyCn5XBPThXWeEtgy0w7fP0K7s1kbZ0Ef6ggmwki/bt 6rPzhn9yMp/4T6dzbfJLtEWCRicV6eR+wIg/+Rg7P+KAgF5+7QwQ1DF/3xrsCWef4XLl GevA== Received: by 10.50.0.204 with SMTP id 12mr1169823igg.9.1353067740653; Fri, 16 Nov 2012 04:09:00 -0800 (PST) X-BeenThere: rtc-linux@googlegroups.com Received: by 10.50.1.230 with SMTP id 6ls774462igp.15.canary; Fri, 16 Nov 2012 04:08:59 -0800 (PST) Received: by 10.50.214.38 with SMTP id nx6mr2986616igc.2.1353067739568; Fri, 16 Nov 2012 04:08:59 -0800 (PST) Received: by 10.50.214.38 with SMTP id nx6mr2986615igc.2.1353067739555; Fri, 16 Nov 2012 04:08:59 -0800 (PST) Received: from devils.ext.ti.com (devils.ext.ti.com. [198.47.26.153]) by gmr-mx.google.com with ESMTPS id ul6si33423igb.2.2012.11.16.04.08.59 (version=TLSv1/SSLv3 cipher=OTHER); Fri, 16 Nov 2012 04:08:59 -0800 (PST) Received-SPF: pass (google.com: domain of anilkumar@ti.com designates 198.47.26.153 as permitted sender) client-ip=198.47.26.153; Received: from dbdp20.itg.ti.com ([172.24.170.38]) by devils.ext.ti.com (8.13.7/8.13.7) with ESMTP id qAGC8uwI009527; Fri, 16 Nov 2012 06:08:57 -0600 Received: from DBDE70.ent.ti.com (localhost [127.0.0.1]) by dbdp20.itg.ti.com (8.13.8/8.13.8) with ESMTP id qAGC8oTd027814; Fri, 16 Nov 2012 17:38:55 +0530 (IST) Received: from dbdp32.itg.ti.com (172.24.170.251) by dbde70.ent.ti.com (172.24.170.148) with Microsoft SMTP Server id 14.1.323.3; Fri, 16 Nov 2012 17:38:51 +0530 Received: from localhost.localdomain (dbdp20.itg.ti.com [172.24.170.38]) by dbdp32.itg.ti.com (8.13.8/8.13.8) with ESMTP id qAGC8gca013461; Fri, 16 Nov 2012 17:38:50 +0530 From: AnilKumar Ch To: , , CC: , , , , , , , Colin Foe-Parker , AnilKumar Ch Subject: [rtc-linux] [PATCH v2 1/4] mfd: tps65217: Set PMIC to shutdowm on PWR_EN toggle Date: Fri, 16 Nov 2012 17:38:23 +0530 Message-ID: <1353067706-29491-2-git-send-email-anilkumar@ti.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1353067706-29491-1-git-send-email-anilkumar@ti.com> References: <1353067706-29491-1-git-send-email-anilkumar@ti.com> MIME-Version: 1.0 X-Original-Sender: anilkumar@ti.com X-Original-Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of anilkumar@ti.com designates 198.47.26.153 as permitted sender) smtp.mail=anilkumar@ti.com Reply-To: rtc-linux@googlegroups.com Precedence: list Mailing-list: list rtc-linux@googlegroups.com; contact rtc-linux+owners@googlegroups.com List-ID: X-Google-Group-Id: 712029733259 List-Post: , List-Help: , List-Archive: Sender: rtc-linux@googlegroups.com List-Subscribe: , List-Unsubscribe: , From: Colin Foe-Parker Set tps65217 PMIC status to OFF if power enable toggle is supported. Also adds platform data flag, which should be passed from board init data. Signed-off-by: Colin Foe-Parker [anilkumar@ti.com: move the additions to tps65217 MFD driver] Signed-off-by: AnilKumar Ch --- .../devicetree/bindings/regulator/tps65217.txt | 4 ++++ drivers/mfd/tps65217.c | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/regulator/tps65217.txt b/Documentation/devicetree/bindings/regulator/tps65217.txt index d316fb8..4f05d20 100644 --- a/Documentation/devicetree/bindings/regulator/tps65217.txt +++ b/Documentation/devicetree/bindings/regulator/tps65217.txt @@ -11,6 +11,9 @@ Required properties: using the standard binding for regulators found at Documentation/devicetree/bindings/regulator/regulator.txt. +Optional properties: +- ti,pmic-shutdown-controller: Telling the PMIC to shutdown on PWR_EN toggle. + The valid names for regulators are: tps65217: dcdc1, dcdc2, dcdc3, ldo1, ldo2, ldo3 and ldo4 @@ -20,6 +23,7 @@ Example: tps: tps@24 { compatible = "ti,tps65217"; + ti,pmic-shutdown-controller; regulators { dcdc1_reg: dcdc1 { diff --git a/drivers/mfd/tps65217.c b/drivers/mfd/tps65217.c index 3fb32e6..c7f17d8 100644 --- a/drivers/mfd/tps65217.c +++ b/drivers/mfd/tps65217.c @@ -160,6 +160,7 @@ static int __devinit tps65217_probe(struct i2c_client *client, unsigned int version; unsigned int chip_id = ids->driver_data; const struct of_device_id *match; + bool status_off = false; int ret; if (client->dev.of_node) { @@ -170,6 +171,8 @@ static int __devinit tps65217_probe(struct i2c_client *client, return -EINVAL; } chip_id = (unsigned int)match->data; + status_off = of_property_read_bool(client->dev.of_node, + "ti,pmic-shutdown-controller"); } if (!chip_id) { @@ -207,6 +210,15 @@ static int __devinit tps65217_probe(struct i2c_client *client, return ret; } + /* Set the PMIC to shutdown on PWR_EN toggle */ + if (status_off) { + ret = tps65217_set_bits(tps, TPS65217_REG_STATUS, + TPS65217_STATUS_OFF, TPS65217_STATUS_OFF, + TPS65217_PROTECT_NONE); + if (ret) + dev_warn(tps->dev, "unable to set the status OFF\n"); + } + dev_info(tps->dev, "TPS65217 ID %#x version 1.%d\n", (version & TPS65217_CHIPID_CHIP_MASK) >> 4, version & TPS65217_CHIPID_REV_MASK);