From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-11.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 408F5C388F7 for ; Wed, 28 Oct 2020 21:47:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8DC72064C for ; Wed, 28 Oct 2020 21:47:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ti.com header.i=@ti.com header.b="aLtikgMJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727695AbgJ1Vr0 (ORCPT ); Wed, 28 Oct 2020 17:47:26 -0400 Received: from fllv0016.ext.ti.com ([198.47.19.142]:44178 "EHLO fllv0016.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727690AbgJ1VrY (ORCPT ); Wed, 28 Oct 2020 17:47:24 -0400 Received: from fllv0034.itg.ti.com ([10.64.40.246]) by fllv0016.ext.ti.com (8.15.2/8.15.2) with ESMTP id 09SLlENC060082; Wed, 28 Oct 2020 16:47:14 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ti.com; s=ti-com-17Q1; t=1603921634; bh=h/7TUYm8pFIf/Hkg1xDYYuruG/43UdD7rQyzE5uDz/A=; h=Date:From:To:CC:Subject:References:In-Reply-To; b=aLtikgMJOgSPhqZxbEHAf+kYRnkEu7pygc+1fCOpenlJBmN2tgMVFbEqbhcCQ4tpn Fr/rdbL/7Uv08tuHOIIenom/F3fpSlSGXl4mMiz5p6BbG/c/mnFGGOIkxwEltYT4E3 Vy9Ie6vXSsWSK/4J6w6P5nTPTPZdEQl1W0UySJV4= Received: from DLEE100.ent.ti.com (dlee100.ent.ti.com [157.170.170.30]) by fllv0034.itg.ti.com (8.15.2/8.15.2) with ESMTPS id 09SLlEvE124545 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=FAIL); Wed, 28 Oct 2020 16:47:14 -0500 Received: from DLEE114.ent.ti.com (157.170.170.25) by DLEE100.ent.ti.com (157.170.170.30) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3; Wed, 28 Oct 2020 16:47:13 -0500 Received: from lelv0326.itg.ti.com (10.180.67.84) by DLEE114.ent.ti.com (157.170.170.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1979.3 via Frontend Transport; Wed, 28 Oct 2020 16:47:14 -0500 Received: from localhost (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0326.itg.ti.com (8.15.2/8.15.2) with ESMTP id 09SLlD3k115294; Wed, 28 Oct 2020 16:47:13 -0500 Date: Wed, 28 Oct 2020 16:47:13 -0500 From: Nishanth Menon To: Lukasz Luba CC: , , , , , , , , , , Subject: Re: [PATCH 1/4] dt-bindings: opp: Introduce opp-sustainable bindings Message-ID: <20201028214713.zttk47qtua5jhieo@pureness> References: <20201028140847.1018-1-lukasz.luba@arm.com> <20201028140847.1018-2-lukasz.luba@arm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20201028140847.1018-2-lukasz.luba@arm.com> User-Agent: NeoMutt/20171215 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org On 14:08-20201028, Lukasz Luba wrote: > Add opp-sustainable as an additional property in the OPP node to describe > the sustainable performance level of the device. This will help to > estimate the sustainable performance of the whole system. > > Signed-off-by: Lukasz Luba > --- > Documentation/devicetree/bindings/opp/opp.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/Documentation/devicetree/bindings/opp/opp.txt b/Documentation/devicetree/bindings/opp/opp.txt > index 9847dfeeffcb..cd01028de305 100644 > --- a/Documentation/devicetree/bindings/opp/opp.txt > +++ b/Documentation/devicetree/bindings/opp/opp.txt > @@ -154,6 +154,10 @@ Optional properties: > - opp-suspend: Marks the OPP to be used during device suspend. If multiple OPPs > in the table have this, the OPP with highest opp-hz will be used. > > +- opp-sustainable: Marks the OPP as sustainable. This property can be used for > + estimating sustainable performance of the whole system. If multiple OPPs in > + the table have this, the OPP with highest opp-hz will be used. By "sustainable", do you mean sustainable across Process, Voltage and Temperature corners upto the max rated operational Power-ON hours without IDLE state being achieved on the processor? OR do you mean to leave it up to interpretation? > + > - opp-supported-hw: This property allows a platform to enable only a subset of > the OPPs from the larger set present in the OPP table, based on the current > version of the hardware (already known to the operating system). > -- > 2.17.1 > -- Regards, Nishanth Menon Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3 1A34 DDB5 849D 1736 249D