From mboxrd@z Thu Jan 1 00:00:00 1970 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=-15.2 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,URIBL_BLOCKED,USER_AGENT_SANE_1 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 2B37AC433E6 for ; Fri, 22 Jan 2021 05:18:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E655C238EE for ; Fri, 22 Jan 2021 05:18:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726545AbhAVFSt (ORCPT ); Fri, 22 Jan 2021 00:18:49 -0500 Received: from m42-8.mailgun.net ([69.72.42.8]:52175 "EHLO m42-8.mailgun.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726472AbhAVFSs (ORCPT ); Fri, 22 Jan 2021 00:18:48 -0500 DKIM-Signature: a=rsa-sha256; v=1; c=relaxed/relaxed; d=mg.codeaurora.org; q=dns/txt; s=smtp; t=1611292701; h=In-Reply-To: Content-Type: MIME-Version: References: Message-ID: Subject: Cc: To: From: Date: Sender; bh=vOZ8V3PI+mLIfXX89NrnhfpLX937QB0x9p+EEU3L+2Q=; b=HlCmoaNilgSthiI/NGZvu8xUqX3PdzfK2p+Bl4CR7trBT3MKzHf6pdrrej9hiCjEdUJMfiKR B/9jbGo9EooobFj74BFTfuv6h4Ken2+rKYkgg5AbcJmY5DYSMimqU8vM7M8PThMK2PaGzwZw FgdVJlWwUDN/q5G3Oo4XzScVkFc= X-Mailgun-Sending-Ip: 69.72.42.8 X-Mailgun-Sid: WyI1YmJiNiIsICJkZXZpY2V0cmVlQHZnZXIua2VybmVsLm9yZyIsICJiZTllNGEiXQ== Received: from smtp.codeaurora.org (ec2-35-166-182-171.us-west-2.compute.amazonaws.com [35.166.182.171]) by smtp-out-n05.prod.us-west-2.postgun.com with SMTP id 600a5ffb5677aca7bd0baefb (version=TLS1.2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256); Fri, 22 Jan 2021 05:17:47 GMT Sender: jackp=codeaurora.org@mg.codeaurora.org Received: by smtp.codeaurora.org (Postfix, from userid 1001) id 0ADF2C43463; Fri, 22 Jan 2021 05:17:47 +0000 (UTC) Received: from jackp-linux.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: jackp) by smtp.codeaurora.org (Postfix) with ESMTPSA id C17D0C433CA; Fri, 22 Jan 2021 05:17:45 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org C17D0C433CA 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=jackp@codeaurora.org Date: Thu, 21 Jan 2021 21:17:43 -0800 From: Jack Pham To: Wesley Cheng Cc: balbi@kernel.org, gregkh@linuxfoundation.org, robh+dt@kernel.org, agross@kernel.org, bjorn.andersson@linaro.org, linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org, linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, peter.chen@nxp.com Subject: Re: [PATCH v6 1/4] usb: gadget: udc: core: Introduce check_config to verify USB configuration Message-ID: <20210122051743.GE31406@jackp-linux.qualcomm.com> References: <1611288100-31118-1-git-send-email-wcheng@codeaurora.org> <1611288100-31118-2-git-send-email-wcheng@codeaurora.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1611288100-31118-2-git-send-email-wcheng@codeaurora.org> User-Agent: Mutt/1.9.4 (2018-02-28) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Wesley, On Thu, Jan 21, 2021 at 08:01:37PM -0800, Wesley Cheng wrote: > Some UDCs may have constraints on how many high bandwidth endpoints it can > support in a certain configuration. This API allows for the composite > driver to pass down the total number of endpoints to the UDC so it can verify > it has the required resources to support the configuration. > > Signed-off-by: Wesley Cheng > --- > drivers/usb/gadget/udc/core.c | 9 +++++++++ > include/linux/usb/gadget.h | 2 ++ > 2 files changed, 11 insertions(+) > > diff --git a/drivers/usb/gadget/udc/core.c b/drivers/usb/gadget/udc/core.c > index 4173acd..469962f 100644 > --- a/drivers/usb/gadget/udc/core.c > +++ b/drivers/usb/gadget/udc/core.c > @@ -1003,6 +1003,15 @@ int usb_gadget_ep_match_desc(struct usb_gadget *gadget, > } > EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc); > > +int usb_gadget_check_config(struct usb_gadget *gadget, unsigned long ep_map) You should probably add a kernel-doc for this function. Jack -- The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, a Linux Foundation Collaborative Project