From patchwork Fri Jul 9 00:27:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 472433 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A8F9BC07E99 for ; Fri, 9 Jul 2021 00:28:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 924BD61493 for ; Fri, 9 Jul 2021 00:28:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230020AbhGIAav (ORCPT ); Thu, 8 Jul 2021 20:30:51 -0400 Received: from so254-9.mailgun.net ([198.61.254.9]:47192 "EHLO so254-9.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229637AbhGIAav (ORCPT ); Thu, 8 Jul 2021 20:30:51 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1625790488; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=cL0fsBn16jUGkDynYaIfSKIWtfsZoMTEAtBNwhlYM80=; b=WpH0fae0Mlu6gwwnQY75WztT5uxovLWogtrHYrIoqOn+x3pjo1lcR4ZfPxsGgo9UQIEAj/hM 0+W8GqVP8s48/AqWL8PuEnp14x7vzaRfUxuX5NiYxAHW9JlL5zmk52Tw63nikuQp1dL8W/J5 iBiX/0UrUND8Xu2CsnFIxjzd0lU= X-Mailgun-Sending-Ip: 198.61.254.9 X-Mailgun-Sid: WyI1MzIzYiIsICJsaW51eC1hcm0tbXNtQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n04.prod.us-west-2.postgun.com with SMTP id 60e7981301dd9a943112aec2 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 09 Jul 2021 00:28:03 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 269FBC43144; Fri, 9 Jul 2021 00:28:03 +0000 (UTC) Received: from wcheng-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: wcheng) by smtp.codeaurora.org (Postfix) with ESMTPSA id DBF13C433D3; Fri, 9 Jul 2021 00:28:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org DBF13C433D3 Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=codeaurora.org Authentication-Results: aws-us-west-2-caf-mail-1.web.codeaurora.org; spf=fail smtp.mailfrom=wcheng@codeaurora.org From: Wesley Cheng To: robh+dt@kernel.org, frowand.list@gmail.com, balbi@kernel.org, gregkh@linuxfoundation.org, agross@kernel.org, bjorn.andersson@linaro.org Cc: devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-arm-msm@vger.kernel.org, jackp@codeaurora.org, fntoth@gmail.com, Wesley Cheng Subject: [PATCH v13 5/6] usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default Date: Thu, 8 Jul 2021 17:27:53 -0700 Message-Id: <1625790474-8376-6-git-send-email-wcheng@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1625790474-8376-1-git-send-email-wcheng@codeaurora.org> References: <1625790474-8376-1-git-send-email-wcheng@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org In order to take advantage of the TX fifo resizing logic, manually add these properties to the DWC3 child node by default. This will allow the DWC3 gadget to resize the TX fifos for the IN endpoints, which help with performance. Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/dwc3-qcom.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 49e6ca9..2223b59 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -645,6 +645,7 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) struct dwc3_qcom *qcom = platform_get_drvdata(pdev); struct device_node *np = pdev->dev.of_node, *dwc3_np; struct device *dev = &pdev->dev; + struct property *prop; int ret; dwc3_np = of_get_compatible_child(np, "snps,dwc3"); @@ -653,6 +654,20 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) return -ENODEV; } + prop = devm_kzalloc(dev, sizeof(*prop), GFP_KERNEL); + if (!prop) { + ret = -ENOMEM; + dev_err(dev, "unable to allocate memory for property\n"); + goto node_put; + } + + prop->name = "tx-fifo-resize"; + ret = of_add_property(dwc3_np, prop); + if (ret) { + dev_err(dev, "unable to add property\n"); + goto node_put; + } + ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret);