From patchwork Mon Feb 21 22:51:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Luba X-Patchwork-Id: 1595775 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4K2cxF68Zpz9sGL for ; Tue, 22 Feb 2022 09:51:45 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234159AbiBUWwG (ORCPT ); Mon, 21 Feb 2022 17:52:06 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:52596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231338AbiBUWwG (ORCPT ); Mon, 21 Feb 2022 17:52:06 -0500 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 31D972458C; Mon, 21 Feb 2022 14:51:42 -0800 (PST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A1BC5106F; Mon, 21 Feb 2022 14:51:41 -0800 (PST) Received: from e123648.arm.com (unknown [10.57.9.194]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 62B133F66F; Mon, 21 Feb 2022 14:51:39 -0800 (PST) From: Lukasz Luba To: linux-kernel@vger.kernel.org Cc: lukasz.luba@arm.com, dietmar.eggemann@arm.com, viresh.kumar@linaro.org, rafael@kernel.org, daniel.lezcano@linaro.org, nm@ti.com, sboyd@kernel.org, mka@chromium.org, dianders@chromium.org, robh+dt@kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Subject: [RFC][PATCH 0/2] Introduce 'advanced' Energy Model in DT Date: Mon, 21 Feb 2022 22:51:29 +0000 Message-Id: <20220221225131.15836-1-lukasz.luba@arm.com> X-Mailer: git-send-email 2.17.1 X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi all, This patch set solves a few issues: 1. It allows to register EM from DT, when the voltage information is not available. (Some background of the issues present on Chromebook devices can be checked at [1].) 2. It allows to register 'advanced' EM from the DT, which is more accurate and reflects total power (dynamic + static). Implementation details: It adds a new callback in OPP framework to parse the "energy-model" DT entry. The propsed DT bindings heavily draw on "operating-points" (v1) schema. Comments, suggestions are very welcome. Regards, Lukasz Luba [1] https://lore.kernel.org/linux-pm/20220207073036.14901-2-lukasz.luba@arm.com/ Lukasz Luba (2): dt-bindings: power: add Energy Model bindings opp: Add support for 'advanced' Energy Model in DT .../bindings/power/energy-model.yaml | 51 ++++++++++ drivers/opp/of.c | 95 ++++++++++++++++++- 2 files changed, 145 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/power/energy-model.yaml