From patchwork Fri Oct 28 13:44:00 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 619566 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 B520AFA3742 for ; Fri, 28 Oct 2022 13:44:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229889AbiJ1No4 (ORCPT ); Fri, 28 Oct 2022 09:44:56 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33632 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231215AbiJ1Nov (ORCPT ); Fri, 28 Oct 2022 09:44:51 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id DE0BD17E1C; Fri, 28 Oct 2022 06:44:42 -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 007EE6288A; Fri, 28 Oct 2022 13:44:42 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D5AAAC4314D; Fri, 28 Oct 2022 13:44:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666964680; bh=LoebmK+dBQqJvUZEDYtP9VtGUiwSzpQBi7HG41jq64s=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lSBbhs5vj0PKnZ4O7vNNuAe77kM3zWiVfEfiIV/kzCQRN9NCPLNL9Z1S6TCFib5Gm IPNRgcg27NSMlaSjAx8HKAwEW3pj1fL/KcXN+SDVkfRParbJbbS4VI3mbbljfHqyj2 74QH1tcClWpH1RKhMqx6xSyHB3iRz6lxf/7/yZyO9b5iuHUI7F8yn31j+9DNMD48On VkY1A/AnHnAemqdR2agz52jBXr3pacOi1X6QqvuDypJ+3yYgHhpf9WQ0XSctXIa4CS SrtH7IRvDMPTKvHA6MtB5vHTaDMHm6Ljt+bLB923/D1mNFfpnr1gedaFUm91NYh77b nfBCzHAGqlNpw== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1ooPet-00052E-AD; Fri, 28 Oct 2022 15:44:27 +0200 From: Johan Hovold To: Vinod Koul Cc: Andy Gross , Bjorn Andersson , Konrad Dybcio , Rob Herring , Krzysztof Kozlowski , Dmitry Baryshkov , linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH v2 06/13] phy: qcom-qmp-usb: clean up device-tree parsing Date: Fri, 28 Oct 2022 15:44:00 +0200 Message-Id: <20221028134407.19300-7-johan+linaro@kernel.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221028134407.19300-1-johan+linaro@kernel.org> References: <20221028134407.19300-1-johan+linaro@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Since the QMP driver split there will be at most a single child node so drop the obsolete iteration construct. While at it, drop the verbose error logging that would have been printed also on probe deferrals. Note that there's no need to check if there are additional child nodes (the kernel is not a devicetree validator), but let's return an error if there are no child nodes at all for now. Reviewed-by: Dmitry Baryshkov Signed-off-by: Johan Hovold --- drivers/phy/qualcomm/phy-qcom-qmp-usb.c | 40 ++++++++----------------- 1 file changed, 12 insertions(+), 28 deletions(-) diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c index e009d63260e7..ccb834a08d5b 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp-usb.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp-usb.c @@ -2471,7 +2471,6 @@ static int qmp_usb_probe(struct platform_device *pdev) void __iomem *serdes; const struct qmp_phy_cfg *cfg = NULL; struct qmp_usb *qmp; - int num, id; int ret; qmp = devm_kzalloc(dev, sizeof(*qmp), GFP_KERNEL); @@ -2507,44 +2506,29 @@ static int qmp_usb_probe(struct platform_device *pdev) if (ret) return ret; - num = of_get_available_child_count(dev->of_node); - /* do we have a rogue child node ? */ - if (num > 1) + child = of_get_next_available_child(dev->of_node, NULL); + if (!child) return -EINVAL; pm_runtime_set_active(dev); ret = devm_pm_runtime_enable(dev); if (ret) - return ret; + goto err_node_put; /* * Prevent runtime pm from being ON by default. Users can enable * it using power/control in sysfs. */ pm_runtime_forbid(dev); - id = 0; - for_each_available_child_of_node(dev->of_node, child) { - /* Create per-lane phy */ - ret = qmp_usb_create(dev, child, serdes, cfg); - if (ret) { - dev_err(dev, "failed to create lane%d phy, %d\n", - id, ret); - goto err_node_put; - } - - /* - * Register the pipe clock provided by phy. - * See function description to see details of this pipe clock. - */ - ret = phy_pipe_clk_register(qmp, child); - if (ret) { - dev_err(qmp->dev, - "failed to register pipe clock source\n"); - goto err_node_put; - } - - id++; - } + ret = qmp_usb_create(dev, child, serdes, cfg); + if (ret) + goto err_node_put; + + ret = phy_pipe_clk_register(qmp, child); + if (ret) + goto err_node_put; + + of_node_put(child); phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);