From patchwork Thu Feb 23 05:18:30 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prashanth K X-Patchwork-Id: 13149865 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 05FC4C636D7 for ; Thu, 23 Feb 2023 05:19:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233259AbjBWFTG (ORCPT ); Thu, 23 Feb 2023 00:19:06 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43320 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232085AbjBWFS5 (ORCPT ); Thu, 23 Feb 2023 00:18:57 -0500 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7ADF3474FC; Wed, 22 Feb 2023 21:18:56 -0800 (PST) Received: from pps.filterd (m0279869.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31N42FMc030284; Thu, 23 Feb 2023 05:18:53 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=luXeSi3oGE0B76cYBdKMJWZZbG8GVrkQJyPg4MmcMH4=; b=LoP5uFPMwV9afpZRmNqeHZrpSewUbdkCSpvcEFzgOcE2tWz4Gg1L90BnmLWe6JPHz94T Po+IHtNdRQQ+cI7a52ajf1KebWO6jOXl2pC+d5jYU4o1E4///T3gWiDPCk8OALcBkQIJ o/bywRXE6jMcPcZRsIF6A50L1qnVeN68tX2lJyMofh408XUMcRHT7pnaBe9EidL03H+F ZD/pc54N1ZNdfhzj4aPmWBTvH+l8Zw7qBmniizNroQI+Z/8uDxBoA7voDecGp/+XxlL8 xkbyTDeUYKpYevsESmczrvbmWhNd7eylpGhzzhESYuyIvDAZSpuvfL1I3vUOfQN93Sdo 0w== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3nwybm0bg7-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 05:18:53 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 31N5Iqth018033 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 05:18:52 GMT Received: from hu-prashk-hyd.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.41; Wed, 22 Feb 2023 21:18:49 -0800 From: Prashanth K To: Greg Kroah-Hartman , Thinh Nguyen , Jakob Koschel , =?utf-8?b?SsOzIMOBZ2lsYSBCaXRzY2g=?= , Alan Stern CC: Pratham Pratap , Jack Pham , , , Prashanth K Subject: [PATCH v1 2/2] usb: gadget: composite: Draw 100mA current if not configured Date: Thu, 23 Feb 2023 10:48:30 +0530 Message-ID: <1677129510-10283-3-git-send-email-quic_prashk@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1677129510-10283-1-git-send-email-quic_prashk@quicinc.com> References: <1677129510-10283-1-git-send-email-quic_prashk@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: hftI9Gdu0Wx7XuC_6tbObtQgQw1bpJJ7 X-Proofpoint-GUID: hftI9Gdu0Wx7XuC_6tbObtQgQw1bpJJ7 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.219,Aquarius:18.0.930,Hydra:6.0.562,FMLib:17.11.170.22 definitions=2023-02-23_02,2023-02-22_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=550 suspectscore=0 phishscore=0 spamscore=0 priorityscore=1501 adultscore=0 impostorscore=0 bulkscore=0 lowpriorityscore=0 malwarescore=0 mlxscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302230045 Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Currently we don't change the current value if device isn't in configured state. But the battery charging specification says, the device can draw upto 100mA of current if its in unconfigured state. Hence add a Vbus_draw work in composite_resume to draw 100mA if the device isn't configured. Signed-off-by: Prashanth K --- drivers/usb/gadget/composite.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index fa7dd6c..147d278 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -2531,6 +2531,8 @@ void composite_resume(struct usb_gadget *gadget) usb_gadget_clear_selfpowered(gadget); usb_gadget_vbus_draw(gadget, maxpower); + } else { + usb_gadget_vbus_draw(gadget, 100); } cdev->suspended = 0;