From patchwork Mon Aug 22 08:14:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Chen-Yu Tsai X-Patchwork-Id: 12950309 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36F37C28D13 for ; Mon, 22 Aug 2022 08:14:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229496AbiHVIOq (ORCPT ); Mon, 22 Aug 2022 04:14:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46908 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230229AbiHVIOo (ORCPT ); Mon, 22 Aug 2022 04:14:44 -0400 Received: from mail-pj1-x1032.google.com (mail-pj1-x1032.google.com [IPv6:2607:f8b0:4864:20::1032]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 056E61B7B2 for ; Mon, 22 Aug 2022 01:14:43 -0700 (PDT) Received: by mail-pj1-x1032.google.com with SMTP id g18so10226075pju.0 for ; Mon, 22 Aug 2022 01:14:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc; bh=vFL4Ok6aVz+SF4AwWxLqDJ9FHif8ySEihParxtYrieU=; b=byGR/js11m4a8Js4TSQCX47v+0BUDKlOmW4jrvz+e1uNJeU7y2gEvVdl7VJwzGPvUi fsk+l1iQUDEZrrivhKeoUL+vHAMvMk9UgYv9U9t4Oe8k805g27z4t3vLplIAc/zalee/ UkrohqvCiKb93QewIV1rqfjJF7IyqR+GS/wn4= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc; bh=vFL4Ok6aVz+SF4AwWxLqDJ9FHif8ySEihParxtYrieU=; b=RwQn2saatU2w3aIZrS2OgTVN6x0E+0CsyboHLwtPrwRjCn7nB8CIeZILegmlytRMKb mhiJOgaNHqz/thQUSfyi9AqdEVGDC/2aRSEsCZ4kBxYP4OPnfYT1HbSYelGlhuJQ/SPp 1B0rjNnUuK3Lexi31K4wSBRaV1i6ft8CIJp6no9mtNdulc2ynJ7nmYsxAVrjuDkw89nK VgoyDxbVHUovZ03YtWqL770Da710BQM3xhLulQJLmGrY61XQVYOVcoBdUws9YvtSzh3z 9+MUklrR34c68kOQ11IETVeb54bbYjOpvOIxnh5BjmwDcXJVa82rygXDV0aUC0/xYZba ioqA== X-Gm-Message-State: ACgBeo0ykFtHPMR9CR7Eiay5M64JNgBrt/hr+Y/w7WGUiIgbVaS2LnZ2 lBke2F9LFCj5NbN2jMsUTDRMGA== X-Google-Smtp-Source: AA6agR5x1ulnqmLHSRLCyJZRdkdDCiS5g9qlKQK1unmkvno1XeD7aFXF1CYQBd5BdFlFECphtFU0Nw== X-Received: by 2002:a17:902:be02:b0:172:d409:e057 with SMTP id r2-20020a170902be0200b00172d409e057mr9499042pls.90.1661156082565; Mon, 22 Aug 2022 01:14:42 -0700 (PDT) Received: from wenstp920.tpe.corp.google.com ([2401:fa00:1:10:d583:9d7d:3429:1b4b]) by smtp.gmail.com with ESMTPSA id f184-20020a6238c1000000b00536b3fe1300sm1204858pfa.13.2022.08.22.01.14.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Aug 2022 01:14:42 -0700 (PDT) From: Chen-Yu Tsai To: Michael Turquette , Stephen Boyd Cc: Chen-Yu Tsai , AngeloGioacchino Del Regno , =?utf-8?q?N=C3=ADcolas_F_=2E_R_=2E_A_=2E_Prado?= , linux-clk@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH RESEND v2 0/2] clk: Fix CLK_OPS_PARENT_ENABLE and runtime PM Date: Mon, 22 Aug 2022 16:14:22 +0800 Message-Id: <20220822081424.1310926-1-wenst@chromium.org> X-Mailer: git-send-email 2.37.1.595.g718a3a8f04-goog MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org Hi Mike, Stephen, Resending this series from last month. This is now based on next-20220822, but should apply cleanly to v6.0-rc1. Here are a couple fixes for the clk core. They are unrelated but overlap in diff context, so I'm sending them together. Patch 1 makes the clk core honor CLK_OPS_PARENT_ENABLE for clk gate ops. Without this, dumping clk_summary on the MT8192 would cause the system to hang. Patch 2 reorders the runtime PM call in clk_core_unprepare() to match the order described in its original commit, and the opposite of that in clk_core_prepare(). Changes since v1 - Use clk_core_{enable,disable}_lock() instead of non-locking variant. Reported by Nícolas - Added coverage for clk_core_is_prepared() - Correct sequencing in clk_core_is_enabled() so that runtime PM is handled before parent clock is enabled, matching other functions. Regards ChenYu Chen-Yu Tsai (2): clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops clk: core: Fix runtime PM sequence in clk_core_unprepare() drivers/clk/clk.c | 31 +++++++++++++++++++++++++++++-- 1 file changed, 29 insertions(+), 2 deletions(-)