From patchwork Tue Oct 21 14:38:10 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nishanth Menon X-Patchwork-Id: 5125431 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 A1AF49F30B for ; Tue, 21 Oct 2014 14:38:56 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 57C0B201F2 for ; Tue, 21 Oct 2014 14:38:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4C8BE20176 for ; Tue, 21 Oct 2014 14:38:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933075AbaJUOif (ORCPT ); Tue, 21 Oct 2014 10:38:35 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:58920 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932841AbaJUOie (ORCPT ); Tue, 21 Oct 2014 10:38:34 -0400 Received: from dflxv15.itg.ti.com ([128.247.5.124]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id s9LEcBnt012751; Tue, 21 Oct 2014 09:38:12 -0500 Received: from DFLE72.ent.ti.com (dfle72.ent.ti.com [128.247.5.109]) by dflxv15.itg.ti.com (8.14.3/8.13.8) with ESMTP id s9LEcBki015286; Tue, 21 Oct 2014 09:38:11 -0500 Received: from dlep32.itg.ti.com (157.170.170.100) by DFLE72.ent.ti.com (128.247.5.109) with Microsoft SMTP Server id 14.3.174.1; Tue, 21 Oct 2014 09:38:11 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by dlep32.itg.ti.com (8.14.3/8.13.8) with ESMTP id s9LEcBjI009814; Tue, 21 Oct 2014 09:38:11 -0500 From: Nishanth Menon To: Tony Lindgren CC: , , , , Nishanth Menon Subject: [PATCH] ARM: dts: dra7-evm: Keep all VDD rails always-on Date: Tue, 21 Oct 2014 09:38:10 -0500 Message-ID: <1413902290-304-1-git-send-email-nm@ti.com> X-Mailer: git-send-email 1.7.9.5 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=-8.3 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 DRA7 Data Manual (SPRS857L - August 2014) section 4.1.1 states: "All unused power supply balls must be supplied with the voltages specified in the Section 5.2, Recommended Operating Conditions". This implies that all unused voltage rails for Vayu can never be switched off even if the hardware blocks inside that voltage domain is unused. Switching off these unused rails may result in stability issues on other domains and increased leakage and power-on-hour impacts. J6eco-evm dts file already considers this, however j6evm-dts file needs to be fixed to consider this constraint of the SoC. Signed-off-by: Nishanth Menon Acked-by: Roger Quadros --- Patch is based on v3.18-rc1 tag. arch/arm/boot/dts/dra7-evm.dts | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index c6ce625..4f4c469 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -201,6 +201,7 @@ regulator-name = "smps45"; regulator-min-microvolt = < 850000>; regulator-max-microvolt = <1150000>; + regulator-always-on; regulator-boot-on; }; @@ -209,6 +210,7 @@ regulator-name = "smps6"; regulator-min-microvolt = <850000>; regulator-max-microvolt = <12500000>; + regulator-always-on; regulator-boot-on; }; @@ -226,6 +228,7 @@ regulator-name = "smps8"; regulator-min-microvolt = < 850000>; regulator-max-microvolt = <1250000>; + regulator-always-on; regulator-boot-on; }; @@ -252,6 +255,7 @@ regulator-name = "ldo2"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; + regulator-always-on; regulator-boot-on; }; @@ -269,6 +273,7 @@ regulator-name = "ldo9"; regulator-min-microvolt = <1050000>; regulator-max-microvolt = <1050000>; + regulator-always-on; regulator-boot-on; };