From patchwork Mon May 5 19:58:28 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dave Gerlach X-Patchwork-Id: 4116871 Return-Path: X-Original-To: patchwork-linux-omap@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 0108A9F1E1 for ; Mon, 5 May 2014 19:58:54 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 2E07B20204 for ; Mon, 5 May 2014 19:58:54 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 139CC201FB for ; Mon, 5 May 2014 19:58:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752509AbaEET6w (ORCPT ); Mon, 5 May 2014 15:58:52 -0400 Received: from comal.ext.ti.com ([198.47.26.152]:39961 "EHLO comal.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752039AbaEET6u (ORCPT ); Mon, 5 May 2014 15:58:50 -0400 Received: from dlelxv90.itg.ti.com ([172.17.2.17]) by comal.ext.ti.com (8.13.7/8.13.7) with ESMTP id s45JwRGI013205; Mon, 5 May 2014 14:58:27 -0500 Received: from DLEE70.ent.ti.com (dlee70.ent.ti.com [157.170.170.113]) by dlelxv90.itg.ti.com (8.14.3/8.13.8) with ESMTP id s45JwRXN015842; Mon, 5 May 2014 14:58:27 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DLEE70.ent.ti.com (157.170.170.113) with Microsoft SMTP Server id 14.3.174.1; Mon, 5 May 2014 14:58:26 -0500 Received: from legion.dal.design.ti.com (legion.dal.design.ti.com [128.247.22.53]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s45JwQJL012429; Mon, 5 May 2014 14:58:26 -0500 Received: from localhost (dave-ubuntu.am.dhcp.ti.com [128.247.71.186]) by legion.dal.design.ti.com (8.11.7p1+Sun/8.11.7) with ESMTP id s45JwQt08033; Mon, 5 May 2014 14:58:26 -0500 (CDT) From: Dave Gerlach To: , CC: , Tony Lindgren , Subject: [PATCH 1/2] ARM: dts: am437x-gp-evm: Add vtt_fixed regulator Date: Mon, 5 May 2014 14:58:28 -0500 Message-ID: <1399319909-53795-2-git-send-email-d-gerlach@ti.com> X-Mailer: git-send-email 1.9.0 In-Reply-To: <1399319909-53795-1-git-send-email-d-gerlach@ti.com> References: <1399319909-53795-1-git-send-email-d-gerlach@ti.com> MIME-Version: 1.0 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org X-Spam-Status: No, score=-7.5 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, 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 The VTT regulator for DDR3 termination on the am437x-gp-evm is controlled by a gpio. It is configured by the bootloader so here we define an always-on, fixed voltage regulator to hold the gpio. Signed-off-by: Dave Gerlach --- arch/arm/boot/dts/am437x-gp-evm.dts | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts index df8798e..6e61e42 100644 --- a/arch/arm/boot/dts/am437x-gp-evm.dts +++ b/arch/arm/boot/dts/am437x-gp-evm.dts @@ -27,6 +27,17 @@ enable-active-high; }; + vtt_fixed: fixedregulator-vtt { + compatible = "regulator-fixed"; + regulator-name = "vtt_fixed"; + regulator-min-microvolt = <1500000>; + regulator-max-microvolt = <1500000>; + regulator-always-on; + regulator-boot-on; + enable-active-high; + gpio = <&gpio5 7 GPIO_ACTIVE_HIGH>; + }; + backlight { compatible = "pwm-backlight"; pwms = <&ecap0 0 50000 PWM_POLARITY_INVERTED>;