From patchwork Mon Mar 21 00:06:10 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Emil Bartczak X-Patchwork-Id: 599914 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from mail-wm0-x240.google.com (mail-wm0-x240.google.com [IPv6:2a00:1450:400c:c09::240]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3qSx205dG8z9s2k for ; Mon, 21 Mar 2016 11:06:16 +1100 (AEDT) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=googlegroups.com header.i=@googlegroups.com header.b=nJWnkg5F; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b=MhyWO8Ae; dkim-atps=neutral Received: by mail-wm0-x240.google.com with SMTP id x188sf21290649wmg.0 for ; Sun, 20 Mar 2016 17:06:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=googlegroups.com; s=20120806; h=sender:date:from:to:cc:subject:message-id:mime-version :content-disposition:user-agent:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=tCIBq1sGjoY1k7RVvtRuTOPQ/LWA4qQ+zfc6+0S3wcA=; b=nJWnkg5FPNOgDGtjD+NXbRLAJ9aCaJjN06QHIL5lkS1Q5CUYPe48h+RPBfnHfz4M0s MQXBP0YOhOHyg6a3sXkGWdZgEpMl9xoRZgDnoA1c5gfKGgEkpSQ2JtRr+3LNTlz/c9uv xXCKdsGw2hdiuk1JwT7JZvOlQ3vHj+XbQSAFwkN04UjFrv3I8yR6dKmz8RwyuO4lQAV5 yL4dCONPopFnkelVx/0yxWhiHINpT6EUOeHcViE5kMSy+SOtUlSD9HdnS1sICT670IJH mrnPJl+UFptUHMX9XKS0UVu8niP6xTN/d8VpufPYcg7zxYpD7jVS2sYdJGW6+/BXw8Au p++w== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:cc:subject:message-id:mime-version:content-disposition :user-agent:x-original-sender:x-original-authentication-results :reply-to:precedence:mailing-list:list-id:x-spam-checked-in-group :list-post:list-help:list-archive:list-subscribe:list-unsubscribe; bh=tCIBq1sGjoY1k7RVvtRuTOPQ/LWA4qQ+zfc6+0S3wcA=; b=MhyWO8AeJXhImGGd3QJ2EMDE1SLgKPRa+0mfvvv/CV8Za/pWk5uangLg2+AYb98S34 cspGMiWg/fjGyHpmyA3gE7E9Md+Ynu3rlB2Am1CdHxFx+Y0ucRRvVLF9wikJjLzG/5iG m2GYC64dtD0J3lbk8frUVr86zye5mghmIZqoCmmr6/5WtGL10g03t6qea6/Q+oOV+nkA +gT7fVHdH0lYucnQ9tz5R6BHjYWFfqkl/zwlNfBtzoX0t01TZ4W7+IIBCBf+qS79Gaoc O5ZUZsk6Q3LVe/ZX8OLwRYbXwZlv5wgCGKkehzZpWa+DM4LrhZCDW3ouNR8M6QssIxjb fJ4A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=sender:x-gm-message-state:date:from:to:cc:subject:message-id :mime-version:content-disposition:user-agent:x-original-sender :x-original-authentication-results:reply-to:precedence:mailing-list :list-id:x-spam-checked-in-group:list-post:list-help:list-archive :list-subscribe:list-unsubscribe; bh=tCIBq1sGjoY1k7RVvtRuTOPQ/LWA4qQ+zfc6+0S3wcA=; b=TovvRMrjVE8wnkkmC1Nj1+ZvtW2u13eTw09XpF6yqFttD4tgk7afQ6wLoSLf0b1Fld Q6qs+naYWBW/YrobkgfZ9V/eIi5IGb4pZpusLaTyJ0mL8UuJXSg174jzUKBSfh9eK96n 6Cm3TwZ/bkNKh1dn+70nMHgJtbLEIFyJ39xKuX1Yve21J3nEzCb31y9w4CXN7mj/NBGP afMx03X+kV2lKVBkk9QW6YlVraPVCknHlkpd2tEsyYBjK0FcFjxj4dt+6GV0vmUNNSNQ HFIw0xOYhv1I+YnLPFBjjfpCnSfcD9j5UFpcYVMyn5R2wzONRsXcypptWrbyNj4BLnsa uR1g== Sender: rtc-linux@googlegroups.com X-Gm-Message-State: AD7BkJLJuv58OsXAPVDHhDZjwJSQmHvIwoU7uJ48S3f9SqjoNmh8upCcMG2QPAuIVBLveg== X-Received: by 10.28.195.69 with SMTP id t66mr31906wmf.14.1458518772305; Sun, 20 Mar 2016 17:06:12 -0700 (PDT) X-BeenThere: rtc-linux@googlegroups.com Received: by 10.28.14.79 with SMTP id 76ls521774wmo.49.canary; Sun, 20 Mar 2016 17:06:11 -0700 (PDT) X-Received: by 10.194.121.197 with SMTP id lm5mr2197625wjb.2.1458518771449; Sun, 20 Mar 2016 17:06:11 -0700 (PDT) Received: from mail-lf0-x22f.google.com (mail-lf0-x22f.google.com. [2a00:1450:4010:c07::22f]) by gmr-mx.google.com with ESMTPS id to3si884263lbb.1.2016.03.20.17.06.11 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Sun, 20 Mar 2016 17:06:11 -0700 (PDT) Received-SPF: pass (google.com: domain of emilbart@gmail.com designates 2a00:1450:4010:c07::22f as permitted sender) client-ip=2a00:1450:4010:c07::22f; Received: by mail-lf0-x22f.google.com with SMTP id d82so51870377lfe.3 for ; Sun, 20 Mar 2016 17:06:11 -0700 (PDT) X-Received: by 10.25.156.133 with SMTP id f127mr9948444lfe.102.1458518771319; Sun, 20 Mar 2016 17:06:11 -0700 (PDT) Received: from localhost (77-255-220-51.adsl.inetia.pl. [77.255.220.51]) by smtp.gmail.com with ESMTPSA id p134sm4165247lfb.48.2016.03.20.17.06.10 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Sun, 20 Mar 2016 17:06:10 -0700 (PDT) Date: Mon, 21 Mar 2016 01:06:10 +0100 From: Emil Bartczak To: a.zummo@towertech.it Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, rtc-linux@googlegroups.com, robh+dt@kernel.org Subject: [rtc-linux] [PATCH] drivers/rtc/rtc-mcp795.c: add devicetree support Message-ID: <20160321000610.GA21979@emba-laptop> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-Original-Sender: emilbart@gmail.com X-Original-Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of emilbart@gmail.com designates 2a00:1450:4010:c07::22f as permitted sender) smtp.mailfrom=emilbart@gmail.com; dkim=pass header.i=@gmail.com; dmarc=pass (p=NONE dis=NONE) header.from=gmail.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-Spam-Checked-In-Group: rtc-linux@googlegroups.com X-Google-Group-Id: 712029733259 List-Post: , List-Help: , List-Archive: , List-Unsubscribe: , Add device tree support to the rtc-mcp795 driver. Signed-off-by: Emil Bartczak Acked-by: Rob Herring --- Documentation/devicetree/bindings/rtc/maxim,mcp795.txt | 11 +++++++++++ drivers/rtc/rtc-mcp795.c | 10 ++++++++++ 2 files changed, 21 insertions(+) create mode 100644 Documentation/devicetree/bindings/rtc/maxim,mcp795.txt diff --git a/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt b/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt new file mode 100644 index 0000000..a59fdd8 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/maxim,mcp795.txt @@ -0,0 +1,11 @@ +* Maxim MCP795 SPI Serial Real-Time Clock + +Required properties: +- compatible: Should contain "maxim,mcp795". +- reg: SPI address for chip + +Example: + mcp795: rtc@0 { + compatible = "maxim,mcp795"; + reg = <0>; + }; diff --git a/drivers/rtc/rtc-mcp795.c b/drivers/rtc/rtc-mcp795.c index 1c91ce8..025bb33 100644 --- a/drivers/rtc/rtc-mcp795.c +++ b/drivers/rtc/rtc-mcp795.c @@ -20,6 +20,7 @@ #include #include #include +#include /* MCP795 Instructions, see datasheet table 3-1 */ #define MCP795_EEREAD 0x03 @@ -183,9 +184,18 @@ static int mcp795_probe(struct spi_device *spi) return 0; } +#ifdef CONFIG_OF +static const struct of_device_id mcp795_of_match[] = { + { .compatible = "maxim,mcp795" }, + { } +}; +MODULE_DEVICE_TABLE(of, mcp795_of_match); +#endif + static struct spi_driver mcp795_driver = { .driver = { .name = "rtc-mcp795", + .of_match_table = of_match_ptr(mcp795_of_match), }, .probe = mcp795_probe, };