From patchwork Mon Feb 24 18:01:35 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andrew Lunn X-Patchwork-Id: 3711271 Return-Path: X-Original-To: patchwork-linux-arm@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 8499F9F35F for ; Mon, 24 Feb 2014 18:03:02 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B411B20120 for ; Mon, 24 Feb 2014 18:03:01 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id CDF6D2011B for ; Mon, 24 Feb 2014 18:03:00 +0000 (UTC) Received: from merlin.infradead.org ([2001:4978:20e::2]) by casper.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WHzrl-00008I-G6; Mon, 24 Feb 2014 18:02:57 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1WHzri-0006JJ-Fl; Mon, 24 Feb 2014 18:02:54 +0000 Received: from vps0.lunn.ch ([178.209.37.122]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1WHzre-0006HM-73 for linux-arm-kernel@lists.infradead.org; Mon, 24 Feb 2014 18:02:51 +0000 Received: from lunn by vps0.lunn.ch with local (Exim 4.80) (envelope-from ) id 1WHzqX-0007Xb-13; Mon, 24 Feb 2014 19:01:41 +0100 From: Andrew Lunn To: Jason Cooper , Sebastian Hesselbarth , Gregory Clement , Thomas Petazzoni Subject: [PATCH v2 2/5] ARM: mvebu: Add i2c alias so setting bus number Date: Mon, 24 Feb 2014 19:01:35 +0100 Message-Id: <1393264898-28939-3-git-send-email-andrew@lunn.ch> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1393264898-28939-1-git-send-email-andrew@lunn.ch> References: <1393264898-28939-1-git-send-email-andrew@lunn.ch> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20140224_130250_495425_2FF3243F X-CRM114-Status: UNSURE ( 9.97 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -1.9 (-) Cc: Andrew Lunn , linux ARM X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable 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 When using platform_driver instantiation, the i2c bus was given bus number 0. The kirkwood-t5325 audio driver has this bus number hard coded for the address of the codec. However by default device tree i2c busses are dynamically allocated a bus number, starting from 1. Thus the kirkwood-t5325 cannot find its audio codec. By adding an alias in the DT file we can control the bus number and set it to 0. The codec can then be found. Signed-off-by: Andrew Lunn --- arch/arm/boot/dts/kirkwood.dtsi | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/kirkwood.dtsi b/arch/arm/boot/dts/kirkwood.dtsi index 180dc69ff742..d8e34fab835b 100644 --- a/arch/arm/boot/dts/kirkwood.dtsi +++ b/arch/arm/boot/dts/kirkwood.dtsi @@ -24,6 +24,7 @@ aliases { gpio0 = &gpio0; gpio1 = &gpio1; + i2c0 = &i2c0; }; mbus { @@ -111,7 +112,7 @@ clocks = <&gate_clk 7>; }; - i2c@11000 { + i2c0: i2c@11000 { compatible = "marvell,mv64xxx-i2c"; reg = <0x11000 0x20>; #address-cells = <1>;