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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id bg7-20020a056a02010700b003816043eea4si3326872pgb.153.2022.03.17.14.44.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 17 Mar 2022 14:44:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@chromium.org header.s=google header.b=ohgOnRsT; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=chromium.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id D7685228D0D; Thu, 17 Mar 2022 14:11:15 -0700 (PDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230135AbiCQVM0 (ORCPT + 99 others); Thu, 17 Mar 2022 17:12:26 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36446 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230136AbiCQVMT (ORCPT ); Thu, 17 Mar 2022 17:12:19 -0400 Received: from mail-oi1-x235.google.com (mail-oi1-x235.google.com [IPv6:2607:f8b0:4864:20::235]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A71EBF029 for ; Thu, 17 Mar 2022 14:11:02 -0700 (PDT) Received: by mail-oi1-x235.google.com with SMTP id z8so6963253oix.3 for ; Thu, 17 Mar 2022 14:11:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=mime-version:in-reply-to:references:from:user-agent:date:message-id :subject:to:cc; bh=RDGPwozN+LQmHwPOGm8zL9xPqdfxPVJfVvPr3LEIR84=; b=ohgOnRsTHNsHzn4tKFhXj0CqnCXzox1Cdt3qCVI5G7pxE2w8oUcWQ2XY+g/7HDIjum 5kLmEu5WFc/STfCzRxgNoLeCM5fs8exy+hvMzzZxkCDirnRZEWaJ2HcVw0qdMaWXJrE8 T84XuIWK1JMGyXIM+hMKfwXOo1gTIVpL/BQ6U= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:mime-version:in-reply-to:references:from :user-agent:date:message-id:subject:to:cc; bh=RDGPwozN+LQmHwPOGm8zL9xPqdfxPVJfVvPr3LEIR84=; b=JyBNfut9Xx10tP774Hgn+3aRTlira+Ahgw2J1lJmmPsFm0JrHfJHXG3BmFoubFwMy+ G7ibda/IaoQz/IcRnY41fJ7bRMAqH9GIva7W8leQy+vOgbSvx40V3mUPkco1r1kO53Y8 ajC42oWJY/GfqBTpXe9HL04zr6TKFEYGH5CfpkHr2DegWhTf30heUfpNUf/ia43kCI2b WIiGve2BDp1O1G0uWA1Sb9REPTKBRsiJ2OFVioLj19usyS/lkWZL46mbFYofejsPDBD2 5ryDKjZihrzHVuIgqwxdlQYOxbD897v8Dh/PbLB9BWV++YST2ilTFLVNIxmSUb9Lmzn3 /j2g== X-Gm-Message-State: AOAM53111j0gNLuXA9+BPrei3PZTYdLTORD4b9xvdXaXpxTATcvCR5B9 AJPpUzhwa4Tre090xaEBi13suuSd+rwimciBlvKGMw== X-Received: by 2002:aca:bd41:0:b0:2ec:ff42:814f with SMTP id n62-20020acabd41000000b002ecff42814fmr3000622oif.63.1647551461460; Thu, 17 Mar 2022 14:11:01 -0700 (PDT) Received: from 753933720722 named unknown by gmailapi.google.com with HTTPREST; Thu, 17 Mar 2022 17:11:00 -0400 MIME-Version: 1.0 In-Reply-To: <1647269217-14064-2-git-send-email-quic_vpolimer@quicinc.com> References: <1647269217-14064-1-git-send-email-quic_vpolimer@quicinc.com> <1647269217-14064-2-git-send-email-quic_vpolimer@quicinc.com> From: Stephen Boyd User-Agent: alot/0.10 Date: Thu, 17 Mar 2022 17:11:00 -0400 Message-ID: Subject: Re: [PATCH v6 1/5] drm/msm/disp/dpu1: set mdp clk to the maximum frequency in opp table during probe To: Vinod Polimera , devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org Cc: linux-kernel@vger.kernel.org, robdclark@gmail.com, dmitry.baryshkov@linaro.org, dianders@chromium.org, quic_kalyant@quicinc.com Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-3.5 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable 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: linux-kernel@vger.kernel.org Quoting Vinod Polimera (2022-03-14 07:46:53) > use max clock during probe/bind sequence from the opp table. > The clock will be scaled down when framework sends an update. Capitalize 'use'. Why is it important to use max frequency during probe/bind? Does not setting the clk rate during probe mean that we'll never use the max rate? Does it speed things up during probe?