From patchwork Wed Jun 30 09:00:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 12351667 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=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 C470EC11F72 for ; Wed, 30 Jun 2021 09:01:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A4AF2619BE for ; Wed, 30 Jun 2021 09:01:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233907AbhF3JDn (ORCPT ); Wed, 30 Jun 2021 05:03:43 -0400 Received: from m43-7.mailgun.net ([69.72.43.7]:44794 "EHLO m43-7.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233804AbhF3JDi (ORCPT ); Wed, 30 Jun 2021 05:03:38 -0400 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1625043669; h=References: In-Reply-To: Message-Id: Date: Subject: Cc: To: From: Sender; bh=DzPXWOao9emXhv/z0DKTPWcbWvSUgvcXSWMkDPHie7E=; b=a58IrcyZz8B3aC6KygOrTTjts/Cc8EyRBfPbZtrg/PRPCvDlSzidgfPxHM1Hfl8zAGnuPa4T SCBgiu8uFmOEZl3pP5gywcQDX4RXUxy8d+iW7JbJxCkdf25aklZ+UzixgHr4wG0ddfSRG7Ul 8rJBp1YPHTb5clH8JV1gIK6/Wdo= X-Mailgun-Sending-Ip: 69.72.43.7 X-Mailgun-Sid: WyIxZTE2YSIsICJsaW51eC11c2JAdmdlci5rZXJuZWwub3JnIiwgImJlOWU0YSJd Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n07.prod.us-east-1.postgun.com with SMTP id 60dc32c35e3e57240bac1562 (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Wed, 30 Jun 2021 09:00:51 GMT Sender: wcheng=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id AA0F1C433F1; Wed, 30 Jun 2021 09:00:50 +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 30047C433F1; Wed, 30 Jun 2021 09:00:49 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 30047C433F1 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: gregkh@linuxfoundation.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, balbi@kernel.org Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org, jackp@codeaurora.org, fntoth@gmail.com, Wesley Cheng Subject: [PATCH v11 4/5] usb: dwc3: dwc3-qcom: Enable tx-fifo-resize property by default Date: Wed, 30 Jun 2021 02:00:41 -0700 Message-Id: <1625043642-29822-5-git-send-email-wcheng@codeaurora.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1625043642-29822-1-git-send-email-wcheng@codeaurora.org> References: <1625043642-29822-1-git-send-email-wcheng@codeaurora.org> Precedence: bulk List-ID: X-Mailing-List: linux-usb@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 Reported-by: kernel test robot --- drivers/usb/dwc3/dwc3-qcom.c | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/usb/dwc3/dwc3-qcom.c b/drivers/usb/dwc3/dwc3-qcom.c index 49e6ca9..cec4f4a 100644 --- a/drivers/usb/dwc3/dwc3-qcom.c +++ b/drivers/usb/dwc3/dwc3-qcom.c @@ -640,6 +640,25 @@ static int dwc3_qcom_acpi_register_core(struct platform_device *pdev) return ret; } +#ifdef CONFIG_OF +static void dwc3_qcom_add_dt_props(struct device *dev, struct device_node *np) +{ + struct property *prop; + int ret; + + prop = devm_kzalloc(dev, sizeof(*prop), GFP_KERNEL); + if (prop) { + prop->name = "tx-fifo-resize"; + ret = of_add_property(np, prop); + if (ret < 0) + dev_info(dev, "unable to add tx-fifo-resize prop\n"); + } +} +#else +static void dwc3_qcom_add_dt_props(struct device *dev, struct device_node *np) +{ } +#endif + static int dwc3_qcom_of_register_core(struct platform_device *pdev) { struct dwc3_qcom *qcom = platform_get_drvdata(pdev); @@ -653,6 +672,8 @@ static int dwc3_qcom_of_register_core(struct platform_device *pdev) return -ENODEV; } + dwc3_qcom_add_dt_props(dev, dwc3_np); + ret = of_platform_populate(np, NULL, NULL, dev); if (ret) { dev_err(dev, "failed to register dwc3 core - %d\n", ret);