From patchwork Wed May 11 22:04:44 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathias Nyman X-Patchwork-Id: 571751 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 583A3C4332F for ; Wed, 11 May 2022 22:03:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346654AbiEKWDs (ORCPT ); Wed, 11 May 2022 18:03:48 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231907AbiEKWDp (ORCPT ); Wed, 11 May 2022 18:03:45 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 01B613B7 for ; Wed, 11 May 2022 15:03:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652306625; x=1683842625; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0kdjLHCG6/4UOkQsZdTcWHOJMA7WArP93pjicLWMjWw=; b=bfx4+xHiURHlAQer5E+MGR+sx+uKS3AehShOiJwQiHQLxDYjokBFbD6D E7VTxnCSkDLo/cL0vx0qeBh/US1C/KclSDqVkjuPc+Iw/GoRlFr47mXnC JuGnY5JZgiNuctt+H28q5viCOYoCxAV4PjAo+j1GI8VubH+hhCUEFdc1u lou4hICc5irBzVus02nYuWV5u+eO+KxSeS1KdLs4N3t4MHe+eA0aq8oW7 s9R1Cl71A7lNBbjqZBIP6c4QIk/6WToaOr6yVN0uTgqFgvcbCnLg6/b6o Ymf+8IkFQLJzDShWXYhRFVek2JWEUiIC/A7fm4EScdT9FbXXQSw2DsF9p g==; X-IronPort-AV: E=McAfee;i="6400,9594,10344"; a="330427439" X-IronPort-AV: E=Sophos;i="5.91,218,1647327600"; d="scan'208";a="330427439" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 May 2022 15:03:43 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,218,1647327600"; d="scan'208";a="542496221" Received: from mattu-haswell.fi.intel.com ([10.237.72.199]) by orsmga006.jf.intel.com with ESMTP; 11 May 2022 15:03:41 -0700 From: Mathias Nyman To: Cc: , Heiner Kallweit , Mathias Nyman Subject: [PATCH 3/9] usb: host: xhci-plat: create shared hcd after having added main hcd Date: Thu, 12 May 2022 01:04:44 +0300 Message-Id: <20220511220450.85367-4-mathias.nyman@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220511220450.85367-1-mathias.nyman@linux.intel.com> References: <20220511220450.85367-1-mathias.nyman@linux.intel.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org From: Heiner Kallweit This patch is in preparation of an extension where in case of a root hub with no ports no shared hcd will be created. Whether one of the root hubs has no ports we figure our in usb_add_hcd() for the primary hcd. Therefore create the shared hcd only after this call. Signed-off-by: Heiner Kallweit Signed-off-by: Mathias Nyman --- drivers/usb/host/xhci-plat.c | 29 ++++++++++++++++------------- 1 file changed, 16 insertions(+), 13 deletions(-) diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c index 649ffd861b44..5d752b384de2 100644 --- a/drivers/usb/host/xhci-plat.c +++ b/drivers/usb/host/xhci-plat.c @@ -283,12 +283,6 @@ static int xhci_plat_probe(struct platform_device *pdev) device_set_wakeup_capable(&pdev->dev, true); xhci->main_hcd = hcd; - xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev, - dev_name(&pdev->dev), hcd); - if (!xhci->shared_hcd) { - ret = -ENOMEM; - goto disable_clk; - } /* imod_interval is the interrupt moderation value in nanoseconds. */ xhci->imod_interval = 40000; @@ -313,16 +307,16 @@ static int xhci_plat_probe(struct platform_device *pdev) if (IS_ERR(hcd->usb_phy)) { ret = PTR_ERR(hcd->usb_phy); if (ret == -EPROBE_DEFER) - goto put_usb3_hcd; + goto disable_clk; hcd->usb_phy = NULL; } else { ret = usb_phy_init(hcd->usb_phy); if (ret) - goto put_usb3_hcd; + goto disable_clk; } hcd->tpl_support = of_usb_host_tpl_support(sysdev->of_node); - xhci->shared_hcd->tpl_support = hcd->tpl_support; + if (priv && (priv->quirks & XHCI_SKIP_PHY_INIT)) hcd->skip_phy_initialization = 1; @@ -333,12 +327,21 @@ static int xhci_plat_probe(struct platform_device *pdev) if (ret) goto disable_usb_phy; + xhci->shared_hcd = __usb_create_hcd(driver, sysdev, &pdev->dev, + dev_name(&pdev->dev), hcd); + if (!xhci->shared_hcd) { + ret = -ENOMEM; + goto dealloc_usb2_hcd; + } + + xhci->shared_hcd->tpl_support = hcd->tpl_support; + if (HCC_MAX_PSA(xhci->hcc_params) >= 4) xhci->shared_hcd->can_do_streams = 1; ret = usb_add_hcd(xhci->shared_hcd, irq, IRQF_SHARED); if (ret) - goto dealloc_usb2_hcd; + goto put_usb3_hcd; device_enable_async_suspend(&pdev->dev); pm_runtime_put_noidle(&pdev->dev); @@ -352,15 +355,15 @@ static int xhci_plat_probe(struct platform_device *pdev) return 0; +put_usb3_hcd: + usb_put_hcd(xhci->shared_hcd); + dealloc_usb2_hcd: usb_remove_hcd(hcd); disable_usb_phy: usb_phy_shutdown(hcd->usb_phy); -put_usb3_hcd: - usb_put_hcd(xhci->shared_hcd); - disable_clk: clk_disable_unprepare(xhci->clk);