From patchwork Sun Jun 5 16:57:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michael Nazzareno Trimarchi X-Patchwork-Id: 12869830 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 E3106C433EF for ; Sun, 5 Jun 2022 16:57:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230102AbiFEQ5Q (ORCPT ); Sun, 5 Jun 2022 12:57:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35048 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1351326AbiFEQ5O (ORCPT ); Sun, 5 Jun 2022 12:57:14 -0400 Received: from mail-ej1-x633.google.com (mail-ej1-x633.google.com [IPv6:2a00:1450:4864:20::633]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C7BD92607 for ; Sun, 5 Jun 2022 09:57:12 -0700 (PDT) Received: by mail-ej1-x633.google.com with SMTP id fu3so23357265ejc.7 for ; Sun, 05 Jun 2022 09:57:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amarulasolutions.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=uqI55ErVc07HSIivOX7AXS9kfYIm1rBhZwSqgaXUh40=; b=VIbhzFl/bTjxpaT0eAACnezKnRbICldZ9hYrKiZSu8aZCsyIkvl+8ItvppwWMaM4cy vX2bu2dfheiQ1Y7jfYkNbnp08WFWGXzWDrijCAU8ZK2neE8ilIIQ7fFDBcpcoTFpfTzg so8qbCau2wxK0Lg3SPKxyi/ywoSq5tOmi5U2Q= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=uqI55ErVc07HSIivOX7AXS9kfYIm1rBhZwSqgaXUh40=; b=Q+1r6E9EQSXli9FQbVCMn13g3pbw2zhVgLy5F+aX3mztBeRy9NOmt/6MZwHn/SBNr3 Wvk+PO/gii1twpAjvlWus9XKZls8F1GCsKk8dn0nL/nDi1/XnT4MbXGCB85LqZLqPq8a Jfbsz5mPmYQLj9XKaRwaLHyAuio6VACZrAspPoRMsmxCU2Pxb9Qd5u6n9pf8BipsyHCT JOT88RbO0EuuxUYwsbfcmtHyY4Y/Lw93xHb9C1msuFP2TgDH5XDKULlfh1X59mfFZpZT 1O7pu5wRfNaSfAc/2IKCvXEPeF5JF3kfYym06eb/naFieV4vtB94Dv+eNsLahP/xCicB b4oA== X-Gm-Message-State: AOAM531/z4N6qmg7JRXcCZH0RzIsznReKiV5RbPA3yL47XNwO03xjpWr GAy5pHdN9r1SyGjwqN0K1i0Aig== X-Google-Smtp-Source: ABdhPJxGFBkk0/mTq0YRR9HHsIxQAOOFxD2SkOe81uKOGO5XMMxqU0A+LvckNQefcbuJLeKgkpBRYg== X-Received: by 2002:a17:906:1492:b0:70e:294c:c37e with SMTP id x18-20020a170906149200b0070e294cc37emr12007185ejc.574.1654448231288; Sun, 05 Jun 2022 09:57:11 -0700 (PDT) Received: from localhost.localdomain (mob-83-225-9-201.net.vodafone.it. [83.225.9.201]) by smtp.gmail.com with ESMTPSA id b12-20020a170906660c00b0070e3f58ed5csm3260761ejp.48.2022.06.05.09.57.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Jun 2022 09:57:10 -0700 (PDT) From: Michael Trimarchi To: Matti Vaittinen , Michael Turquette , Stephen Boyd , linux-clk@vger.kernel.org (open list:COMMON CLK FRAMEWORK), linux-kernel@vger.kernel.org (open list) Cc: Dario Binacchi , linux-amarula@amarulasolutions.com, linux-clk@vger.kernel.org (open list:COMMON CLK FRAMEWORK), linux-kernel@vger.kernel.org (open list) Subject: [RFC PATCH 2/3] clk: bd718x7: Enable the possibility to mark the clock as critical Date: Sun, 5 Jun 2022 18:57:02 +0200 Message-Id: <20220605165703.1565234-3-michael@amarulasolutions.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220605165703.1565234-1-michael@amarulasolutions.com> References: <20220605165703.1565234-1-michael@amarulasolutions.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-clk@vger.kernel.org If the clock is used to generate the osc_32k, we need to mark as critical. clock-critical has no binding description at the moment but it's defined in linux kernel bd71847: pmic@4b { ... rohm,reset-snvs-powered; #clock-cells = <0>; clock-critical = <1>; clocks = <&osc_32k 0>; clock-output-names = "clk-32k-out"; ... } Signed-off-by: Michael Trimarchi --- drivers/clk/clk-bd718x7.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c index 04cc0beb67df..5088379ec2b7 100644 --- a/drivers/clk/clk-bd718x7.c +++ b/drivers/clk/clk-bd718x7.c @@ -83,6 +83,7 @@ static int bd71837_clk_probe(struct platform_device *pdev) const char *parent_clk; struct device *dev = &pdev->dev; struct device *parent = pdev->dev.parent; + unsigned long flags; struct clk_init_data init = { .name = "bd718xx-32k-out", .ops = &bd71837_clk_ops, @@ -100,6 +101,9 @@ static int bd71837_clk_probe(struct platform_device *pdev) parent_clk = of_clk_get_parent_name(parent->of_node, 0); + of_clk_detect_critical(dev->of_node, 0, &flags); + init.flags = flags; + init.parent_names = &parent_clk; if (!parent_clk) { dev_err(dev, "No parent clk found\n");