Received: by 2002:a05:6359:c8b:b0:c7:702f:21d4 with SMTP id go11csp1347262rwb; Wed, 28 Sep 2022 17:25:35 -0700 (PDT) X-Google-Smtp-Source: AMsMyM4e4i/whRnvP5ABSPYIbtLp6vFCrHSJdThgWPz4HGy9olwXCnvnIFCrsfNkDfx+qPATsROS X-Received: by 2002:a17:90a:6503:b0:207:cd0e:bf1f with SMTP id i3-20020a17090a650300b00207cd0ebf1fmr521271pjj.25.1664411134792; Wed, 28 Sep 2022 17:25:34 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1664411134; cv=none; d=google.com; s=arc-20160816; b=E68fkWgWzeDrsuAG698Xw1NhumlU77zwSlT9CewRkwwk0o4OxGzUgPXuX9wHGF/XPZ ByI3VOH2JYNj0ZB67GXwqtvMtYeE3USu7rVBpCzPPUKcyI1x0rmBixHzgVs7irgi88OG RvK0J43JfhhitSQzq3cSWdMTquVpSFwDgHkbyUJgfnxjPKvKM45l5nS+OVPzwl4yAme9 AcjzNDe7gX2zjnVpvqR+AIPckYE2Byw0SeWkVDkdAjdTjY0Ju+yEdFiBTIgRn3oPRCMZ 38Wa5PLsXf3/qXJOADG2S/i8kfmVPgbreksK58pnqM13JcFMMT0p5BaaaBjuDvrLMlvB Ll/A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:user-agent:date:to:cc:from:subject :references:in-reply-to:content-transfer-encoding:mime-version :dkim-signature; bh=fKnEXLC/jKn6OGROQe7w8b0UH801mzP+7eeETzYhNms=; b=dgMf373HU5+KI1mqtVHG1r4MspmA9JVkplre9M80av3KjAA/Ecqyy+3YuYhoKe0tlk n6hbKEAylitwtoGpIvxz0gIt+7ZuInSGjCfD8ZmW6wyW1xo9iixjbLJctUljV1Vr5qYi XbqCKN2hzZfKAIO5kw0EHMV9esM7vciV4gC0kKscifCNHvxlZtn7u/3FiXmV2KynIQ/Z vY9c8ciBD+JfOO2mn68QtMu9HoKmqpx2d5ynAXzscnX4kcRt9f+2nLMNkaB7S6dJ6Drj Zl2/czSzwo9QZUKhDMpuPrJWdMtvsGXzKVH2bq+CfJAd7I8hDfopPZDi87j/Ei3Gns5y ALCw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=eLvGBSZa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id a23-20020a17090acb9700b00202c5a9bf44si3437502pju.174.2022.09.28.17.25.23; Wed, 28 Sep 2022 17:25:34 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=eLvGBSZa; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233060AbiI2ARs (ORCPT + 99 others); Wed, 28 Sep 2022 20:17:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33738 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232170AbiI2ARr (ORCPT ); Wed, 28 Sep 2022 20:17:47 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D6AA111A694; Wed, 28 Sep 2022 17:17:46 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 4E8A36116A; Thu, 29 Sep 2022 00:17:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A4F9FC433B5; Thu, 29 Sep 2022 00:17:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1664410665; bh=fKnEXLC/jKn6OGROQe7w8b0UH801mzP+7eeETzYhNms=; h=In-Reply-To:References:Subject:From:Cc:To:Date:From; b=eLvGBSZaJIbxck9Bfjxhu/l3mUdHfpsyPS5mQ8VYihsdSzrrUlJXnPlhgkHrFuxoL u5TxWP2C4ci/Ndty9LrBxRJ8bISCLQqmmvhD9sv1nIAyzyOII8tFttvhO3HTby+liB DDogsPu+gBNY6n7U6bAUMG3tfsk1AYXtdQaxGUcVQOZijCCzVK93DUPNu8qzGFXIib D/2sz3FjSRglJRMxmC2eLQLHe0FCp2OATWIG2MJoqI0r8zmtCqT/yAQKVk5COPm4Yx 51Ux35O22xe21oI0/ybryxnu+m03VIjJ8vs7nwz3kPShwIWGKDV6MIN0pwCCRp1/v0 N0nGcQqUDqdbQ== Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable In-Reply-To: <5a88bd5a9e93cc6e794080e5cac821ae0c27ec56.1663827071.git.rtanwar@maxlinear.com> References: <5a88bd5a9e93cc6e794080e5cac821ae0c27ec56.1663827071.git.rtanwar@maxlinear.com> Subject: Re: [PATCH RESEND v2 3/5] clk: mxl: Avoid disabling gate clocks from clk driver From: Stephen Boyd Cc: linux-kernel@vger.kernel.org, linux-lgm-soc@maxlinear.com, Rahul Tanwar To: Rahul Tanwar , linux-clk@vger.kernel.org, mturquette@baylibre.com Date: Wed, 28 Sep 2022 17:17:40 -0700 User-Agent: alot/0.10 Message-Id: <20220929001745.A4F9FC433B5@smtp.kernel.org> X-Spam-Status: No, score=-7.2 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI, SPF_HELO_NONE,SPF_PASS 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: linux-kernel@vger.kernel.org Quoting Rahul Tanwar (2022-09-21 23:24:26) > In MxL's LGM SoC, gate clocks are supposed to be enabled or disabled > from EPU (power management IP) in certain power saving modes. If gate > clocks are allowed to be enabled/disabled from CGU clk driver, then > there arises a conflict where in case clk driver disables a gate clk, > and then EPU tries to disable the same gate clk, then it will hang > polling for the clk gated successful status. Is there any point in registering these clks when they're not supposed to be controlled from Linux?