From patchwork Thu May 28 07:29:57 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Viresh Kumar X-Patchwork-Id: 6496481 Return-Path: X-Original-To: patchwork-linux-pm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id A3A9E9F38C for ; Thu, 28 May 2015 07:30:23 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id DBC2920656 for ; Thu, 28 May 2015 07:30:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E04B820630 for ; Thu, 28 May 2015 07:30:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753272AbbE1HaT (ORCPT ); Thu, 28 May 2015 03:30:19 -0400 Received: from mail-pa0-f41.google.com ([209.85.220.41]:34446 "EHLO mail-pa0-f41.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752836AbbE1HaS (ORCPT ); Thu, 28 May 2015 03:30:18 -0400 Received: by pabru16 with SMTP id ru16so17267149pab.1 for ; Thu, 28 May 2015 00:30:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:in-reply-to:references; bh=5Fq2Efr6hDRq3S+Pcc0YVeHgku4pZZN9UXH8vwR9Aso=; b=LROs8kHhPB46ZH+s4Uhg+YDoGL+QOkZ0RMzTJCFzoRTxwNuerUMkF+RcrHUmVzdlhW npe1PmtJXYbF0zYr8gWYoUk256w1rdi7eOHLB68IR5sSsJPAmXGHAof29060o9j7KA2Y 18YHIGWxwRo16JX/54mx1az95Vc2oSPWLt7ayOhj+vZ+eDLXBIHrSyjcpL9xcr0753RQ q1wOvjG1Mu+2dNAcfBajqbWBqCyuX2MBtoSVzkPCI0Djv16/7YP2FRPr1V8HOeAx5Vgo ZIO/csTFZNS83bhu2Wzl/H5p5jNfbmLM4TnhU1I8ffG2/rHr8TRLBd1vtFEeLFRhoHgy FYmg== X-Gm-Message-State: ALoCoQk+YKCJMLXjDdw9MzG3ydjue0toxukZ8IXtPOalqvdikFB6yE1YuNuTi71htHJlmpfh5uGa X-Received: by 10.68.131.225 with SMTP id op1mr2975888pbb.86.1432798218161; Thu, 28 May 2015 00:30:18 -0700 (PDT) Received: from localhost ([122.167.219.251]) by mx.google.com with ESMTPSA id pj4sm1339304pbb.20.2015.05.28.00.30.16 (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Thu, 28 May 2015 00:30:17 -0700 (PDT) From: Viresh Kumar To: Rafael Wysocki , rob.herring@linaro.org Cc: linaro-kernel@lists.linaro.org, linux-pm@vger.kernel.org, arnd.bergmann@linaro.org, nm@ti.com, broonie@kernel.org, mike.turquette@linaro.org, sboyd@codeaurora.org, grant.likely@linaro.org, olof@lixom.net, Sudeep.Holla@arm.com, devicetree@vger.kernel.org, viswanath.puttagunta@linaro.org, l.stach@pengutronix.de, thomas.petazzoni@free-electrons.com, linux-arm-kernel@lists.infradead.org, ta.omasab@gmail.com, kesavan.abhilash@gmail.com, khilman@linaro.org, santosh.shilimkar@oracle.com, Viresh Kumar Subject: [PATCH V6 3/3] OPP: Add binding for 'opp-suspend' Date: Thu, 28 May 2015 12:59:57 +0530 Message-Id: <52320ac3032de17cbb0aaf518d542ebfbac4b1a4.1432797343.git.viresh.kumar@linaro.org> X-Mailer: git-send-email 2.4.0 In-Reply-To: References: In-Reply-To: References: Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_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 On few platforms, for power efficiency, we want the device to be configured for a specific OPP while we put the device in suspend state. Add an optional property in operating-points-v2 bindings for that. Acked-by: Nishanth Menon Suggested-by: Nishanth Menon Signed-off-by: Viresh Kumar --- Documentation/devicetree/bindings/power/opp.txt | 14 ++++++++++---- 1 file changed, 10 insertions(+), 4 deletions(-) diff --git a/Documentation/devicetree/bindings/power/opp.txt b/Documentation/devicetree/bindings/power/opp.txt index f6f75545149e..e56c74824a8c 100644 --- a/Documentation/devicetree/bindings/power/opp.txt +++ b/Documentation/devicetree/bindings/power/opp.txt @@ -74,6 +74,8 @@ This describes the OPPs belonging to a device. This node can have following Missing property means devices have independent clock/voltage/current lines, but they share OPP tables. +- opp-suspend: Phandle of the OPP to set while device is suspended. + * OPP Node @@ -145,9 +147,10 @@ Example 1: Single cluster Dual-core ARM cortex A9, switch DVFS states together. cpu0_opp_table: opp_table0 { compatible = "operating-points-v2"; + opp-suspend = <&suspend_opp>; opp-shared; - opp00 { + suspend-opp: opp00 { opp-hz = <1000000000>; opp-microvolt = <970000 975000 985000>; opp-microamp = <70000>; @@ -219,13 +222,14 @@ independently. cpu_opp_table: opp_table { compatible = "operating-points-v2"; + opp-suspend = <&suspend_opp>; /* * Missing opp-shared property means CPUs switch DVFS states * independently. */ - opp00 { + suspend-opp: opp00 { opp-hz = <1000000000>; opp-microvolt = <970000 975000 985000>; opp-microamp = <70000>; @@ -298,9 +302,10 @@ DVFS state together. cluster0_opp: opp_table0 { compatible = "operating-points-v2"; + opp-suspend = <&suspend_opp0>; opp-shared; - opp00 { + suspend-opp: opp00 { opp-hz = <1000000000>; opp-microvolt = <970000 975000 985000>; opp-microamp = <70000>; @@ -323,9 +328,10 @@ DVFS state together. cluster1_opp: opp_table1 { compatible = "operating-points-v2"; + opp-suspend = <&suspend_opp1>; opp-shared; - opp10 { + suspend-opp: opp10 { opp-hz = <1300000000>; opp-microvolt = <1045000 1050000 1055000>; opp-microamp = <95000>;