From owner-svn-src-head@FreeBSD.ORG  Sat May 31 14:38:06 2014
Return-Path: <owner-svn-src-head@FreeBSD.ORG>
Delivered-To: svn-src-head@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115])
 (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits))
 (No client certificate requested)
 by hub.freebsd.org (Postfix) with ESMTPS id 4AA80ABD;
 Sat, 31 May 2014 14:38:06 +0000 (UTC)
Received: from svn.freebsd.org (svn.freebsd.org
 [IPv6:2001:1900:2254:2068::e6a:0])
 (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits))
 (Client did not present a certificate)
 by mx1.freebsd.org (Postfix) with ESMTPS id 380782E78;
 Sat, 31 May 2014 14:38:06 +0000 (UTC)
Received: from svn.freebsd.org ([127.0.1.70])
 by svn.freebsd.org (8.14.8/8.14.8) with ESMTP id s4VEc6H6049742;
 Sat, 31 May 2014 14:38:06 GMT (envelope-from loos@svn.freebsd.org)
Received: (from loos@localhost)
 by svn.freebsd.org (8.14.8/8.14.8/Submit) id s4VEc6KF049741;
 Sat, 31 May 2014 14:38:06 GMT (envelope-from loos@svn.freebsd.org)
Message-Id: <201405311438.s4VEc6KF049741@svn.freebsd.org>
From: Luiz Otavio O Souza <loos@FreeBSD.org>
Date: Sat, 31 May 2014 14:38:06 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
 svn-src-head@freebsd.org
Subject: svn commit: r266923 - head/sys/dev/iicbus
X-SVN-Group: head
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
X-BeenThere: svn-src-head@freebsd.org
X-Mailman-Version: 2.1.18
Precedence: list
List-Id: SVN commit messages for the src tree for head/-current
 <svn-src-head.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/options/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/svn-src-head/>
List-Post: <mailto:svn-src-head@freebsd.org>
List-Help: <mailto:svn-src-head-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/svn-src-head>,
 <mailto:svn-src-head-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 31 May 2014 14:38:06 -0000

Author: loos
Date: Sat May 31 14:38:05 2014
New Revision: 266923
URL: http://svnweb.freebsd.org/changeset/base/266923

Log:
  Ignore IIC_ENOADDR from iicbus_reset() as it only means we have a
  master-only controller.
  
  This fixes the iic bus scan with i2c(8) (on supported controllers).
  
  Tested with gpioiic(4).

Modified:
  head/sys/dev/iicbus/iic.c

Modified: head/sys/dev/iicbus/iic.c
==============================================================================
--- head/sys/dev/iicbus/iic.c	Sat May 31 14:27:50 2014	(r266922)
+++ head/sys/dev/iicbus/iic.c	Sat May 31 14:38:05 2014	(r266923)
@@ -322,6 +322,12 @@ iicioctl(struct cdev *dev, u_long cmd, c
 
 	case I2CRSTCARD:
 		error = iicbus_reset(parent, IIC_UNKNOWN, 0, NULL);
+		/*
+		 * Ignore IIC_ENOADDR as it only means we have a master-only
+		 * controller.
+		 */
+		if (error == IIC_ENOADDR)
+			error = 0;
 		break;
 
 	case I2CWRITE: