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Fri, 22 Jan 2021 16:27:00 +0900 (KST) Received: from ubuntu (unknown [12.36.155.120]) by epsmtip2.samsung.com (KnoxPortal) with ESMTPA id 20210122072700epsmtip2a1b108374f4bd34df6dd6434a0389bbb~cfTHwxfTN0187401874epsmtip2j; Fri, 22 Jan 2021 07:27:00 +0000 (GMT) Date: Fri, 22 Jan 2021 16:15:40 +0900 From: Jung Daehwan To: Wesley Cheng , Thinh Nguyen , Daehwan Jung Cc: Felipe Balbi , Greg Kroah-Hartman , "open list:DESIGNWARE USB3 DRD IP DRIVER" , open list Subject: Re: usb: dwc3: gadget: skip pullup and set_speed after suspend Message-ID: <20210122071540.GB121941@ubuntu> Reply-To: eg Kroah-Hartman MIME-Version: 1.0 In-Reply-To: <20210122064125.GA121941@ubuntu> User-Agent: Mutt/1.5.24 (2015-08-30) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFlrOJsWRmVeSWpSXmKPExsWy7bCmha5LHVeCwbMryhbH2p6wW9xZMI3J onnxejaLy7vmsFksWtbKbLFqwQF2i7VNs9gc2D0u9/UyeWxa1cnmsX/uGnaPvi2rGD227P/M 6PF5k1wAW1SOTUZqYkpqkUJqXnJ+SmZeuq2Sd3C8c7ypmYGhrqGlhbmSQl5ibqqtkotPgK5b Zg7QLUoKZYk5pUChgMTiYiV9O5ui/NKSVIWM/OISW6XUgpScAkPDAr3ixNzi0rx0veT8XCtD AwMjU6DKhJyMA8vvsBTM5qpYNnUZcwPjPo4uRk4OCQETifs39jJ3MXJxCAnsYJR4POckK0hC SOATo8S6/nCIxDdGiVNHZjF1MXKAdZybrAIR38socezKJjYI5wmjxNapx8G6WQRUJbqa5zKC 2GwCWhL3fpxgBrFFBKok9n+axgZiMwucZJTY8zUdxBYWcJeYePsuC4jNK6AjsW7dBXaIK8wl /i2bDxUXlDg58wmYzSmgK/Fv4yxmkINEBVQkXh2sB7lBQmAih0Tb94vsEK+5SEx8txTKFpZ4 dXwLlC0l8bK/jR3imXKJRfPtIHo7GCXWfDrLCFFjLDHrWTsjxJ0ZEhOfTYaqV5Y4cosFIswn 0XH4L1SYV6KjTQiiU1li+uUJrBC2pMTB1+eYIWwPiW+v/0GDqoFR4t2OmcwTGBVmIflsFpJt ELaOxILdn9hmAa1gFpCWWP6PA8LUlFi/S38BI+sqRrHUguLc9NRiowIT5GjfxAhOsVoeOxhn v/2gd4iRiYPxEKMEB7OSCO8jS44EId6UxMqq1KL8+KLSnNTiQ4ymwCibyCwlmpwPTPJ5JfGG pkZmZgaWphamZkYWSuK8RQYP4oUE0hNLUrNTUwtSi2D6mDg4pRqYGv3lT7CGeW3xbTrwtqSn iMdF2GhrSyJfhsLNv8eXrgn5z5h0OHxHes+9hiS3nbur/CKtf6/T95wmxHpb9i/79I26m66f DfM10S/P5vkqfIfZPbk+crbHpm3X4x1Vans4pndPTrpyekWwY3aJqNKOPXnpwQaROc3HFzbM PPz89XznR1EBf9rDLpX9Sl/CKhBXWZ9tEhbH2OfAJPjdrEPgcQrH+ch6lYCXRsXrdsr1J8e3 CkZtvTNTOXQyU8tpTudEndm7M7pZGjlq7SZ+crJWLk2f91Vt7TzP54ujT8rteWE+tcCJvztr daF7xD6/lGf95vGaPkoXdvgfWf5Maw7rkdx7+/7+X/962n6xeUosxRmJhlrMRcWJAAOB75M6 BAAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrHLMWRmVeSWpSXmKPExsWy7bCSvK5LHVeCwY8WPotjbU/YLe4smMZk 0bx4PZvF5V1z2CwWLWtltli14AC7xdqmWWwO7B6X+3qZPDat6mTz2D93DbtH35ZVjB5b9n9m 9Pi8SS6ALYrLJiU1J7MstUjfLoEr4/T63WwFt9krTh//ztLAOJ2ti5GDQ0LAROLcZJUuRi4O IYHdjBIT+28xdTFyAsUlJZbOvcEOYQtL3G85wgpR9IhR4vaTpawgCRYBVYmu5rmMIDabgJbE vR8nmEFsEYEaieauNSwgDcwCpxkllhydDpYQFnCXmHj7LguIzSugI7Fu3QWwDUIC5hL/ls1n gdjQwChx5N1VqCJBiZMzn4DZzEAbbvx7yQRyNrOAtMTyfxwgYU4BXYl/G2cxg4RFBVQkXh2s n8AoNAtJ8ywkzbMQmhcwMq9ilEwtKM5Nzy02LDDMSy3XK07MLS7NS9dLzs/dxAiOEi3NHYzb V33QO8TIxMF4iFGCg1lJhPeRJUeCEG9KYmVValF+fFFpTmrxIUZpDhYlcd4LXSfjhQTSE0tS s1NTC1KLYLJMHJxSDUwn7RifPVZJ+Cr+gZlHxOB746694kdL+r/x7lqxcdPVHQ++5V+bGcVw 4rvU/dDJn6Vkj3xL9vKwmzBxnRp/dYS3zNmXHj/0Kza4H3rY2aQnF7tmhmVYQ1DVxXa2+uiW VDGdjaYM7LsZFJ+dM3zG9NF392GeuI3Tz3wXjam5quRSp2obX1q/1Pq2f2tN0oHGCfrumi9r 7iwzeDQ38WHGwuc5pnb6X2zENPf+uG93sdrwEkO0kv1lg/LDHw8Utp1KZjd2dTd+oN76/33Y 3XDTvV52h1zZlwu9+qIYOUP4flfcnSvCr24k3N33xNDynPki83eSGUkKZv+4Cupll9+Su6HK GsrktnWi5zYXvrg2ZSWW4oxEQy3mouJEACp2MQQBAwAA X-CMS-MailID: 20210122072700epcas2p37a79e9fb536c69b3f2ed135f39e08749 X-Msg-Generator: CA Content-Type: multipart/mixed; boundary="----WZLI4USkVYiVjVtGawWGutc5pNztY3GR2qy8kqsclN4GFAmP=_2224e_" X-Sendblock-Type: AUTO_CONFIDENTIAL CMS-TYPE: 102P DLP-Filter: Pass X-CFilter-Loop: Reflected X-CMS-RootMailID: 20210122065248epcas2p19a972d3a385b91d6e05a16f2ef7b0dd6 References: <20210122064125.GA121941@ubuntu> Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org ------WZLI4USkVYiVjVtGawWGutc5pNztY3GR2qy8kqsclN4GFAmP=_2224e_ Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline On Fri, Jan 22, 2021 03:32, Wesley cheng wrote: > Hi Daehwan, > > If this is an unexpected event where userspace initiates the UDC bind > sequence, then after the above sequence occurs, the DWC3 device should > still be able to re-enter runtime suspend after the autosuspend timer > expires. Since the cable is disconnected, the dwc->connected flag would > still be false. Is this not happening in your situation? > > I'm just trying to understand what issue you're seeing other than the > momentary transition from runtime suspend (due to cable disconnect) > -->runtime resume (due to unexpected UDC bind) --> runtime suspend (due > to nothing connected). > > Thanks > Wesley cheng Hi Wesley, I don't know why but DWC3 device is not re-entering runtime-suspend in my situation. I'm still debugging it. Even if DWC3 re-enter runtime-suspend but it doesn't mean stopping gadget. Are you stopping gadget manually in this case? Best Regards, Jung Daehwan ------WZLI4USkVYiVjVtGawWGutc5pNztY3GR2qy8kqsclN4GFAmP=_2224e_ Content-Type: text/plain; charset="utf-8" ------WZLI4USkVYiVjVtGawWGutc5pNztY3GR2qy8kqsclN4GFAmP=_2224e_--