From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8870F6FA7 for ; Sun, 17 Sep 2023 20:02:00 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id AB5BEC433CA; Sun, 17 Sep 2023 20:01:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1694980920; bh=wYZ8Ez6SAfQhmO2iHsoeNdbSh4MhMD5GfbBAuJr8xn8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=b69iTCvExNQ2P2jO9KXC9g/emgPhoVrUdD40LsBzwfikJuMSps2TdMpmqsY2oiXVS wy8GNQnoqWOhS/mJWPUnAYLsFCL7R3CyF8CfPr0Ds05mcVtdMLx+b9c/N0eX06JLxi w+BityK9JUPUuHmticRk0RFt/XW3G8wdElHQJOJg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Taniya Das , Johan Hovold , Bjorn Andersson Subject: [PATCH 6.1 046/219] clk: qcom: lpasscc-sc7280: fix missing resume during probe Date: Sun, 17 Sep 2023 21:12:53 +0200 Message-ID: <20230917191042.666196864@linuxfoundation.org> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20230917191040.964416434@linuxfoundation.org> References: <20230917191040.964416434@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.1-stable review patch. If anyone has any objections, please let me know. ------------------ From: Johan Hovold commit 66af5339d4f8e20c6d89a490570bd94d40f1a7f6 upstream. Drivers that enable runtime PM must make sure that the controller is runtime resumed before accessing its registers to prevent the power domain from being disabled. Fixes: 4ab43d171181 ("clk: qcom: Add lpass clock controller driver for SC7280") Cc: stable@vger.kernel.org # 5.16 Cc: Taniya Das Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20230718132902.21430-6-johan+linaro@kernel.org Signed-off-by: Bjorn Andersson Signed-off-by: Greg Kroah-Hartman --- drivers/clk/qcom/lpasscc-sc7280.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) --- a/drivers/clk/qcom/lpasscc-sc7280.c +++ b/drivers/clk/qcom/lpasscc-sc7280.c @@ -115,9 +115,13 @@ static int lpass_cc_sc7280_probe(struct ret = pm_clk_add(&pdev->dev, "iface"); if (ret < 0) { dev_err(&pdev->dev, "failed to acquire iface clock\n"); - goto destroy_pm_clk; + goto err_destroy_pm_clk; } + ret = pm_runtime_resume_and_get(&pdev->dev); + if (ret) + goto err_destroy_pm_clk; + if (!of_property_read_bool(pdev->dev.of_node, "qcom,adsp-pil-mode")) { lpass_regmap_config.name = "qdsp6ss"; lpass_regmap_config.max_register = 0x3f; @@ -125,7 +129,7 @@ static int lpass_cc_sc7280_probe(struct ret = qcom_cc_probe_by_index(pdev, 0, desc); if (ret) - goto destroy_pm_clk; + goto err_put_rpm; } lpass_regmap_config.name = "top_cc"; @@ -134,11 +138,15 @@ static int lpass_cc_sc7280_probe(struct ret = qcom_cc_probe_by_index(pdev, 1, desc); if (ret) - goto destroy_pm_clk; + goto err_put_rpm; + + pm_runtime_put(&pdev->dev); return 0; -destroy_pm_clk: +err_put_rpm: + pm_runtime_put_sync(&pdev->dev); +err_destroy_pm_clk: pm_clk_destroy(&pdev->dev); disable_pm_runtime: