From patchwork Mon Oct 24 10:06:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johan Hovold X-Patchwork-Id: 618241 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 F32DFFA3745 for ; Mon, 24 Oct 2022 10:07:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230400AbiJXKHL (ORCPT ); Mon, 24 Oct 2022 06:07:11 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58708 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229730AbiJXKHJ (ORCPT ); Mon, 24 Oct 2022 06:07:09 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E631E33E08; Mon, 24 Oct 2022 03:07:04 -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 75E79611B3; Mon, 24 Oct 2022 10:07:04 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 538C9C4347C; Mon, 24 Oct 2022 10:07:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1666606023; bh=PEit2jIpLlK9bUU+cJjrQ+dNfgmnYX9dhRSclH2YI4I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fZOzXIUkJ1DGrg56weHIwToQSxV84wnvlQoYIcee6JGfsA8tNIlh81YZYIAxgihTb /8gdvrJUgPgM4BW4uLNpgprFw1c0PtRCwL+ems5nP1z71FD9VO+0jA4ZtdZE1HMyHw sl7B5ZQVJrb+7VsPIlNgWpkZnDeJO6k57TGvqttN1CZ8KAWGMP5L0ZDuqoBftxOf/U ltIhNQrqjdy6BqGVSPvTHP4D8QwIdg0mjbh9S74ih3KCO2KVZInaBV49IVOzscC9h9 1n1/rC2oEPwXKxw3PNl99FQ5SdFte3bTbgQUnbNaaZIztRcGToqxxYgbpBfuPH7LLd Xhz+tSIHoZvFA== Received: from johan by xi.lan with local (Exim 4.94.2) (envelope-from ) id 1omuM3-0005MJ-5h; Mon, 24 Oct 2022 12:06:47 +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, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Johan Hovold Subject: [PATCH 06/13] phy: qcom-qmp-usb: clean up device-tree parsing Date: Mon, 24 Oct 2022 12:06:25 +0200 Message-Id: <20221024100632.20549-7-johan+linaro@kernel.org> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221024100632.20549-1-johan+linaro@kernel.org> References: <20221024100632.20549-1-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. 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);