From patchwork Thu Feb 23 08:57:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prashanth K X-Patchwork-Id: 13149989 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 6C0C7C636D7 for ; Thu, 23 Feb 2023 08:58:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233762AbjBWI6I (ORCPT ); Thu, 23 Feb 2023 03:58:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54376 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233763AbjBWI6G (ORCPT ); Thu, 23 Feb 2023 03:58:06 -0500 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B35564E5FD; Thu, 23 Feb 2023 00:58:05 -0800 (PST) Received: from pps.filterd (m0279864.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 31N5A1hP023409; Thu, 23 Feb 2023 08:58:02 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=2K+C8HMS9npx4Hhjm7Ocj7wuGl6LtUkhYA+q3Bkv+oQ=; b=HH+d6JmLDWZ67zbCGKMIuiaMcl2DkdkbJjc4qmwqn50cb1Ag9ED8o5XoCJjblwgOskgA 1+ENU1FdX8e7It3QxBpTdbjFXo+z8Ph3UwkcT2/JvKmybtCeDProqw7EIMK3bS4z9iTm 4y2fhMlb6GF/bZTuXq39ctRJ5IVBgtGykPq3i7s7iJo5rZxXyNJH/DVsczX3gGoEE/NZ zo72UNB0XjAC47dCZy+H+mQAb1JaG7n+v039L/gSLy7vfNIP8pPSUxyiZCh2nGb5ITVx wSWkIytRfEzNKFGcQAVHAOl77r4b+ygLJyH5dOw+tckz0mW48RLNbtqvkRrSnDCBBMSi Fw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3nwy9a0tku-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 08:58:02 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 31N8w1Zn016477 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 23 Feb 2023 08:58:01 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; Thu, 23 Feb 2023 00:57:57 -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 v2 2/2] usb: gadget: composite: Draw 100mA current if not configured Date: Thu, 23 Feb 2023 14:27:45 +0530 Message-ID: <1677142665-8686-3-git-send-email-quic_prashk@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1677142665-8686-1-git-send-email-quic_prashk@quicinc.com> References: <1677142665-8686-1-git-send-email-quic_prashk@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) 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-GUID: 34TsFu1mA0ppEYHxSzBTPPcWCaIFQXn8 X-Proofpoint-ORIG-GUID: 34TsFu1mA0ppEYHxSzBTPPcWCaIFQXn8 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_04,2023-02-22_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 clxscore=1015 malwarescore=0 spamscore=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 adultscore=0 phishscore=0 mlxscore=0 mlxlogscore=621 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2302230077 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, device can draw up to 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 | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c index 403563c..23b7347a8 100644 --- a/drivers/usb/gadget/composite.c +++ b/drivers/usb/gadget/composite.c @@ -2449,6 +2449,9 @@ void composite_resume(struct usb_gadget *gadget) usb_gadget_clear_selfpowered(gadget); usb_gadget_vbus_draw(gadget, maxpower); + } else { + maxpower = min(CONFIG_USB_GADGET_VBUS_DRAW, 100U) + usb_gadget_vbus_draw(gadget, maxpower); } cdev->suspended = 0;