From patchwork Thu Nov 21 17:16:39 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabio Estevam X-Patchwork-Id: 3219931 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 5A4FB9F3A0 for ; Thu, 21 Nov 2013 17:17:42 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 3AF4A20784 for ; Thu, 21 Nov 2013 17:17:41 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [85.118.1.10]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 31CA82077A for ; Thu, 21 Nov 2013 17:17:36 +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 1VjXsa-0004ge-Jc; Thu, 21 Nov 2013 17:17:24 +0000 Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1VjXsX-0000o3-Or; Thu, 21 Nov 2013 17:17:21 +0000 Received: from co9ehsobe002.messaging.microsoft.com ([207.46.163.25] helo=co9outboundpool.messaging.microsoft.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VjXsU-0000n2-FF for linux-arm-kernel@lists.infradead.org; Thu, 21 Nov 2013 17:17:19 +0000 Received: from mail144-co9-R.bigfish.com (10.236.132.226) by CO9EHSOBE012.bigfish.com (10.236.130.75) with Microsoft SMTP Server id 14.1.225.22; Thu, 21 Nov 2013 17:16:56 +0000 Received: from mail144-co9 (localhost [127.0.0.1]) by mail144-co9-R.bigfish.com (Postfix) with ESMTP id 8E1BEC07A1; Thu, 21 Nov 2013 17:16:56 +0000 (UTC) X-Forefront-Antispam-Report: CIP:70.37.183.190; KIP:(null); UIP:(null); IPV:NLI; H:mail.freescale.net; RD:none; EFVD:NLI X-SpamScore: 3 X-BigFish: VS3(zcb8kzzz1f42h2148h208ch1ee6h1de0h1fdah2073h2146h1202h1e76h1d1ah1d2ah1fc6hzz1de098h8275bh1de097hz2dh2a8h839hd24he5bhf0ah1288h12a5h12a9h12bdh12e5h137ah139eh13b6h1441h1504h1537h162dh1631h1758h1898h18e1h1946h19b5h1ad9h1b0ah1b2fh2222h224fh1fb3h1d0ch1d2eh1d3fh1dc1h1dfeh1dffh1e23h1fe8h1ff5h2218h2216h226dh22d0h1155h) Received: from mail144-co9 (localhost.localdomain [127.0.0.1]) by mail144-co9 (MessageSwitch) id 138505421440147_3196; Thu, 21 Nov 2013 17:16:54 +0000 (UTC) Received: from CO9EHSMHS008.bigfish.com (unknown [10.236.132.238]) by mail144-co9.bigfish.com (Postfix) with ESMTP id 059D980077; Thu, 21 Nov 2013 17:16:54 +0000 (UTC) Received: from mail.freescale.net (70.37.183.190) by CO9EHSMHS008.bigfish.com (10.236.130.18) with Microsoft SMTP Server (TLS) id 14.16.227.3; Thu, 21 Nov 2013 17:16:51 +0000 Received: from az84smr01.freescale.net (10.64.34.197) by 039-SN1MMR1-002.039d.mgd.msft.net (10.84.1.15) with Microsoft SMTP Server (TLS) id 14.3.158.2; Thu, 21 Nov 2013 17:16:50 +0000 Received: from fabio-Latitude-E6410.am.freescale.net ([10.29.244.102]) by az84smr01.freescale.net (8.14.3/8.14.0) with ESMTP id rALHGmMM002259; Thu, 21 Nov 2013 10:16:49 -0700 From: Fabio Estevam To: Subject: [PATCH] ARM: dts: imx6qdl-sabresd: Provide a backlight regulator Date: Thu, 21 Nov 2013 15:16:39 -0200 Message-ID: <1385054199-21400-1-git-send-email-fabio.estevam@freescale.com> X-Mailer: git-send-email 1.8.1.2 MIME-Version: 1.0 X-OriginatorOrg: freescale.com X-FOPE-CONNECTOR: Id%0$Dn%*$RO%0$TLS%0$FQDN%$TlsDn% X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20131121_121718_586743_64B6B7F3 X-CRM114-Status: UNSURE ( 8.21 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -4.2 (----) Cc: Fabio Estevam , linux-arm-kernel@lists.infradead.org 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.7 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 Without providing the backlight regulator the following error is seen: pwm-backlight backlight.14: dummy supplies not allowed ,and LVDS screen is blank. Provide a dummy backlight regulator, so that the LVDS panel can be functional again. Signed-off-by: Fabio Estevam --- Tested on linux-next 20131120 arch/arm/boot/dts/imx6qdl-sabresd.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi index 4239ef9..07206d2 100644 --- a/arch/arm/boot/dts/imx6qdl-sabresd.dtsi +++ b/arch/arm/boot/dts/imx6qdl-sabresd.dtsi @@ -47,6 +47,15 @@ gpio = <&gpio4 10 0>; enable-active-high; }; + + reg_backlight: regulator@3 { + compatible = "regulator-fixed"; + reg = <3>; + regulator-name = "lcd-supply"; + regulator-min-microvolt = <3200000>; + regulator-max-microvolt = <3200000>; + regulator-always-on; + }; }; gpio-keys { @@ -91,6 +100,7 @@ pwms = <&pwm1 0 5000000>; brightness-levels = <0 4 8 16 32 64 128 255>; default-brightness-level = <7>; + power-supply = <®_backlight>; status = "okay"; }; };