From patchwork Mon Mar 15 13:54:22 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 400455 Delivered-To: patch@linaro.org Received: by 2002:a02:8562:0:0:0:0:0 with SMTP id g89csp3459843jai; Mon, 15 Mar 2021 07:14:26 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzTFFRdlu/eksCNqcNUJ9Bqbfo1fRsOO6rrev8iiU3nsCQuve6N5INzknmQWp/RhTLrFNGN X-Received: by 2002:aa7:c496:: with SMTP id m22mr29929106edq.292.1615817666110; Mon, 15 Mar 2021 07:14:26 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1615817666; cv=none; d=google.com; s=arc-20160816; b=X/NYSpzqHYv+Mezg7dXnmlXtnk8y7RMoPyI7VSDDlx+nextGBtW3FmYtfnf2m8hBgv vYMMnLxVzR33VqR+2KVZZRolnrWWEZ+kGpVXytB/n8vIXMCWsRW56oDywg/zuKs89Z2x g66ppyhyAsJ/Q1iPfclfaXyavEhWJVBK/hqt97StajHdoshJcqp7yfl7ba0JPj4BKud5 87GJiuw4uyNpz58Wc6aDgiAh7W4ZPZvlmohg+Ro+vjTkmJMo4Rp8MQmWkEOxcWd0gu2I G6loH3NtS47Ijya1nKhd7laxaFmlUiHWHc5wPub+CXlymdidr9r5F/dSDQWyppve7oVx /1sg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:message-id:date:subject:cc:to :from:dkim-signature; bh=IrRZLXT5T/k38gRXD+zthUOZSoVMEJXtBi9yzOUntNU=; b=I33Qms2bU8miiBWwvOckHrZP9RMZHXbvmnFfa9PYXQeJ437ObPSQh9EWA8nkjk3irp jkSEzqhnwIuh1qwL5x2cx+WlkJ6n67MbAaJ4EPk5j6gFRJM9NyYFHAkDBFr6ePfA31V7 bIzBpIDPJoyli91GM/qgHZ9QHp5eu/7J3/uYA/7QBYI/Oc4ZvQhWG3ITra8cdlR+zDAq v4NrsbUNek2eSyrLJ2I+3j7iFPwSmDq9FD5GFBvQMO/cK2eD8jTjq+98ip+AXuoZovAO Cn2JZ4gOuH9GYmFZkgm/djvB4cKKD25BkQ+QwcksCQRbJwouTP9yAGbkCXj66QoGy1Ds csfQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=ToMBRbNS; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id h21si993553ede.37.2021.03.15.07.14.25; Mon, 15 Mar 2021 07:14:26 -0700 (PDT) Received-SPF: pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@linuxfoundation.org header.s=korg header.b=ToMBRbNS; spf=pass (google.com: domain of stable-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=stable-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=linuxfoundation.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235035AbhCOOHA (ORCPT + 12 others); Mon, 15 Mar 2021 10:07:00 -0400 Received: from mail.kernel.org ([198.145.29.99]:48444 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233521AbhCOOBz (ORCPT ); Mon, 15 Mar 2021 10:01:55 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id F34E664EF1; Mon, 15 Mar 2021 14:01:53 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1615816915; bh=te4hZo7HFHHW5oJ5jXIkUtYvVvsHLJj1h5NcS6pT4Uk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ToMBRbNSHEARAZFlVXP8Rsc+dRi+AknTeHjhn2S+ohzctM6uxAgMrYDnyAs6DNkrn Wr8o0yiwBQTgvgNK5ufXx8qGxs7me9x5L0OpK8mG7rJXxdYc9c6k93D0jNq1jK9uRg EHDZYFWo4QctYdvr0QeOkse5sx176Gc4gLRWcKs8= From: gregkh@linuxfoundation.org To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Bjorn Andersson , Shawn Guo Subject: [PATCH 5.11 199/306] usb: dwc3: qcom: add URS Host support for sdm845 ACPI boot Date: Mon, 15 Mar 2021 14:54:22 +0100 Message-Id: <20210315135514.358462202@linuxfoundation.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210315135507.611436477@linuxfoundation.org> References: <20210315135507.611436477@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Greg Kroah-Hartman From: Shawn Guo commit c25c210f590e7a37eecd865d84f97d1f40e39786 upstream. For sdm845 ACPI boot, the URS (USB Role Switch) node in ACPI DSDT table holds the memory resource, while interrupt resources reside in the child nodes USB0 and UFN0. It adds USB0 host support by probing URS node, creating platform device for USB0 node, and then retrieve interrupt resources from USB0 platform device. Reviewed-by: Bjorn Andersson Signed-off-by: Shawn Guo Link: https://lore.kernel.org/r/20210115035057.10994-1-shawn.guo@linaro.org Signed-off-by: Greg Kroah-Hartman --- drivers/usb/dwc3/dwc3-qcom.c | 59 ++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 56 insertions(+), 3 deletions(-) --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -60,12 +60,14 @@ struct dwc3_acpi_pdata { int dp_hs_phy_irq_index; int dm_hs_phy_irq_index; int ss_phy_irq_index; + bool is_urs; }; struct dwc3_qcom { struct device *dev; void __iomem *qscratch_base; struct platform_device *dwc3; + struct platform_device *urs_usb; struct clk **clks; int num_clocks; struct reset_control *resets; @@ -429,13 +431,15 @@ static void dwc3_qcom_select_utmi_clk(st static int dwc3_qcom_get_irq(struct platform_device *pdev, const char *name, int num) { + struct dwc3_qcom *qcom = platform_get_drvdata(pdev); + struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : pdev; struct device_node *np = pdev->dev.of_node; int ret; if (np) - ret = platform_get_irq_byname(pdev, name); + ret = platform_get_irq_byname(pdev_irq, name); else - ret = platform_get_irq(pdev, num); + ret = platform_get_irq(pdev_irq, num); return ret; } @@ -568,6 +572,8 @@ static int dwc3_qcom_acpi_register_core( struct dwc3_qcom *qcom = platform_get_drvdata(pdev); struct device *dev = &pdev->dev; struct resource *res, *child_res = NULL; + struct platform_device *pdev_irq = qcom->urs_usb ? qcom->urs_usb : + pdev; int irq; int ret; @@ -597,7 +603,7 @@ static int dwc3_qcom_acpi_register_core( child_res[0].end = child_res[0].start + qcom->acpi_pdata->dwc3_core_base_size; - irq = platform_get_irq(pdev, 0); + irq = platform_get_irq(pdev_irq, 0); child_res[1].flags = IORESOURCE_IRQ; child_res[1].start = child_res[1].end = irq; @@ -654,6 +660,33 @@ node_put: return ret; } +static struct platform_device * +dwc3_qcom_create_urs_usb_platdev(struct device *dev) +{ + struct fwnode_handle *fwh; + struct acpi_device *adev; + char name[8]; + int ret; + int id; + + /* Figure out device id */ + ret = sscanf(fwnode_get_name(dev->fwnode), "URS%d", &id); + if (!ret) + return NULL; + + /* Find the child using name */ + snprintf(name, sizeof(name), "USB%d", id); + fwh = fwnode_get_named_child_node(dev->fwnode, name); + if (!fwh) + return NULL; + + adev = to_acpi_device_node(fwh); + if (!adev) + return NULL; + + return acpi_create_platform_device(adev, NULL); +} + static int dwc3_qcom_probe(struct platform_device *pdev) { struct device_node *np = pdev->dev.of_node; @@ -718,6 +751,14 @@ static int dwc3_qcom_probe(struct platfo qcom->acpi_pdata->qscratch_base_offset; parent_res->end = parent_res->start + qcom->acpi_pdata->qscratch_base_size; + + if (qcom->acpi_pdata->is_urs) { + qcom->urs_usb = dwc3_qcom_create_urs_usb_platdev(dev); + if (!qcom->urs_usb) { + dev_err(dev, "failed to create URS USB platdev\n"); + return -ENODEV; + } + } } qcom->qscratch_base = devm_ioremap_resource(dev, parent_res); @@ -880,8 +921,20 @@ static const struct dwc3_acpi_pdata sdm8 .ss_phy_irq_index = 2 }; +static const struct dwc3_acpi_pdata sdm845_acpi_urs_pdata = { + .qscratch_base_offset = SDM845_QSCRATCH_BASE_OFFSET, + .qscratch_base_size = SDM845_QSCRATCH_SIZE, + .dwc3_core_base_size = SDM845_DWC3_CORE_SIZE, + .hs_phy_irq_index = 1, + .dp_hs_phy_irq_index = 4, + .dm_hs_phy_irq_index = 3, + .ss_phy_irq_index = 2, + .is_urs = true, +}; + static const struct acpi_device_id dwc3_qcom_acpi_match[] = { { "QCOM2430", (unsigned long)&sdm845_acpi_pdata }, + { "QCOM0304", (unsigned long)&sdm845_acpi_urs_pdata }, { }, }; MODULE_DEVICE_TABLE(acpi, dwc3_qcom_acpi_match);