From mboxrd@z Thu Jan 1 00:00:00 1970 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: base64 Subject: usb: dwc3: Prevent indefinite sleep in _dwc3_set_mode during suspend/resume From: Felipe Balbi Message-Id: <87h8puwyn5.fsf@linux.intel.com> Date: Mon, 05 Mar 2018 13:27:26 +0200 To: Baolin Wang , Roger Quadros Cc: USB , LKML List-ID: SGksCgpCYW9saW4gV2FuZyA8YmFvbGluLndhbmdAbGluYXJvLm9yZz4gd3JpdGVzOgo+Pj4+Pj4+ Pj4gIHZvaWQgZHdjM19nYWRnZXRfZXhpdChzdHJ1Y3QgZHdjMyAqZHdjKQo+Pj4+Pj4+Pj4gIHsK Pj4+Pj4+Pj4+ICsgIGludCBlcG51bTsKPj4+Pj4+Pj4+ICsgIHVuc2lnbmVkIGxvbmcgZmxhZ3M7 Cj4+Pj4+Pj4+PiArCj4+Pj4+Pj4+PiArICBzcGluX2xvY2tfaXJxc2F2ZSgmZHdjLT5sb2NrLCBm bGFncyk7Cj4+Pj4+Pj4+PiArICBmb3IgKGVwbnVtID0gMjsgZXBudW0gPCBEV0MzX0VORFBPSU5U U19OVU07IGVwbnVtKyspIHsKPj4+Pj4+Pj4+ICsgICAgICAgICAgc3RydWN0IGR3YzNfZXAgICpk ZXAgPSBkd2MtPmVwc1tlcG51bV07Cj4+Pj4+Pj4+PiArCj4+Pj4+Pj4+PiArICAgICAgICAgIGlm ICghZGVwKQo+Pj4+Pj4+Pj4gKyAgICAgICAgICAgICAgICAgIGNvbnRpbnVlOwo+Pj4+Pj4+Pj4g Kwo+Pj4+Pj4+Pj4gKyAgICAgICAgICBkZXAtPmZsYWdzICY9IH5EV0MzX0VQX0VORF9UUkFOU0ZF Ul9QRU5ESU5HOwo+Pj4+Pj4+Pj4gKyAgfQo+Pj4+Pj4+Pj4gKyAgc3Bpbl91bmxvY2tfaXJxcmVz dG9yZSgmZHdjLT5sb2NrLCBmbGFncyk7Cj4+Pj4+Pj4+PiArCj4+Pj4+Pj4+PiAgICB1c2JfZGVs X2dhZGdldF91ZGMoJmR3Yy0+Z2FkZ2V0KTsKPj4+Pj4+Pj4+ICAgIGR3YzNfZ2FkZ2V0X2ZyZWVf ZW5kcG9pbnRzKGR3Yyk7Cj4+Pj4+Pj4+Cj4+Pj4+Pj4+IGZyZWUgZW5kcG9pbnRzIGlzIGEgYmV0 dGVyIHBsYWNlIGZvciB0aGlzLiBJdCdzIGFscmVhZHkgZ29pbmcgdG8gZnJlZQo+Pj4+Pj4+PiB0 aGUgbWVtb3J5IGFueXdheS4gTWlnaHQgYXMgd2VsbCBjbGVhciBhbGwgZmxhZ3MgdG8gMCB0aGVy ZS4KPj4+Pj4+Pj4KPj4+Pj4+Pgo+Pj4+Pj4+IEJ1dCBpdCB3b24ndCBzb2x2ZSB0aGUgZGVhZGxv Y2sgaXNzdWUuIFNpbmNlIGR3YzNfZ2FkZ2V0X2ZyZWVfZW5kcG9pbnRzKCkKPj4+Pj4+PiBpcyBj YWxsZWQgYWZ0ZXIgdXNiX2RlbF9nYWRnZXRfdWRjKCkgYW5kIHRoZSBkZWFkbG9jayBoYXBwZW5z IHdoZW4KPj4+Pj4+Pgo+Pj4+Pj4+IHVzYl9kZWxfZ2FkZ2V0X3VkYygpLT51ZGNfc3RvcCgpLT5k d2MzX2dhZGdldF9zdG9wKCktPndhaXRfZXZlbnRfbG9ja19pcnEoKQo+Pj4+Pj4+Cj4+Pj4+Pj4g YW5kIERXQzNfRVBfRU5EX1RSQU5TRkVSX1BFTkRJTkcgZmxhZyBpcyBzZXQuCj4+Pj4+Pgo+Pj4+ Pj4gaW5kZWVkLiBJdGVyYXRpbmcgdHdpY2Ugb3ZlciB0aGUgZW50aXJlIGVuZHBvaW50IGxpc3Qg c2VlbXMKPj4+Pj4+IHdhc3RlZnVsLiBQZXJoYXBzIHdlIGp1c3Qgc2hvdWxkbid0IHdhaXQgd2hl biByZW1vdmluZyB0aGUgVURDIHNpbmNlCj4+Pj4+PiB0aGF0J3MgZXNzZW50aWFsbHkgd2hhdCB0 aGlzIHBhdGNoIHdpbGwgZG8sIHJpZ2h0PyBJZiB5b3UgY2xlYXIgdGhlIGZsYWcKPj4+Pj4+IGJl Zm9yZSBjYWxsaW5nIC0+dWRjX3N0b3AoKSwgdGhpcyBtZWFucyB0aGUgbG9vcCBpbiBkd2MzX2dh ZGdldF9zdG9wKCkKPj4+Pj4+IHdpbGwgZG8gbm90aGluZy4gTWlnaHQgYXMgd2VsbCByZW1vdmUg aXQuCj4+Pj4+Pgo+Pj4+Pgo+Pj4+PiBUaGlzIG1lYW5zIHRoYXQgd2Ugd2lsbCBuZXZlciB3YWl0 IGZvciBEV0MzX0VQX0VORF9UUkFOU0ZFUl9QRU5ESU5HIHRvIGNsZWFyCj4+Pj4+IGluIGR3YzNf Z2FkZ2V0X3N0b3AoKSBsaWtlIHdlIHVzZWQgdG8uIFRoaXMgaXMgcGVyZmVjdGx5IGZpbmUsIHJp Z2h0Pwo+Pj4+Pgo+Pj4+PiBJdCBtYWtlcyBzZW5zZSB0byBtZSBhcyBkd2MzX2dhZGdldF9zdG9w KCkgY2FsbHMgX19kd2MzX2dhZGdldF9zdG9wKCkgd2hpY2gKPj4+Pj4gbWFza3MgYWxsIGludGVy cnVwdHMgYW5kIG5vYm9keSB3aWxsIGV2ZXIgY2xlYXIgdGhhdCBmbGFnIGlmIGl0IHdhcyBzZXQu Cj4+Pj4KPj4+PiBJIGRvbid0IHRoaW5rIHNvLiBJdCBjYW4gbm90IG1hc2sgdGhlIGVuZHBvaW50 IGV2ZW50cywgcGxlYXNlIGNoZWNrCj4+Pj4gdGhlIGV2ZW50cyB3aGljaCB3aWxsIGJlIG1hc2tl ZCBpbiBERVZURU4gcmVnaXN0ZXIuIFRoZSByZWFzb24gd2h5IHdlCj4+Pj4gc2hvdWxkIHdhaXQg Zm9yIERXQzNfRVBfRU5EX1RSQU5TRkVSX1BFTkRJTkcgdG8gY2xlYXIgaXMgdGhhdCwKPj4+PiBz b21ldGltZXMgdGhlIERXQzNfREVQRVZUX0VQQ01EQ01QTFQgZXZlbnQgd2lsbCBiZSB0cmlnZ2Vy ZWQgbGF0ZXIKPj4+PiB0aGFuIDEwMHVzLCBidXQgbm93IHdlIG1heSBoYXZlIGZyZWVkIHRoZSBn YWRnZXQgaXJxIHdoaWNoIHdpbGwgY2F1c2UKPj4+PiBjcmFzaC4KPj4+Cj4+PiBXZSBjb3VsZCBt YXNrIGNvbW1hbmQgY29tcGxldGUgZXZlbnRzIGFzIHNvb24gYXMgLT51ZGNfc3RvcCgpIGlzIGNh bGxlZCwKPj4+IHJpZ2h0PyBIbW0sIGFjdHVhbGx5LCBfX2R3YzNfZ2FkZ2V0X3N0b3AoKSBhbHJl YWR5IGNsZWFycyBERVZURU4KPj4+IGNvbXBsZXRlbHkuCj4+Cj4+IEJ1dCB3aGljaCBiaXQgaW4g REVWVEVOIHNheXMgRW5kcG9pbnQgZXZlbnRzIGFyZSBkaXNhYmxlZD8KPgo+IFdoZW4gd2Ugc2V0 IHVwIHRoZSBEV0MzX0RFUENNRF9FTkRUUkFOU0ZFUiBjb21tYW5kIGluCj4gZHdjM19zdG9wX2Fj dGl2ZV90cmFuc2ZlcigpLCB3ZSBjYW4gZG8gbm90IHNldCBEV0MzX0RFUENNRF9DTURJT0MsCj4g dGhlbiB0aGVyZSB3aWxsIG5vIGVuZHBvaW50IGNvbW1hbmQgY29tcGxldGUgaW50ZXJydXB0cyBJ IHRoaW5rLgo+Cj4gY21kIHw9IERXQzNfREVQQ01EX0NNRElPQzsKCkkgcmVtZW1iZXIgc29tZSBw YXJ0IG9mIHRoZSBkYXRhYm9vayBtYW5kYXRpbmcgQ01ESU9DIHRvIGJlIHNldC4gV2UKY291bGQg dGVzdCBpdCBvdXQgd2l0aG91dCBhbmQgc2VlIGlmIGFueXRoaW5nIGJsb3dzIHVwLiBJIHdvdWxk LApob3dldmVyLCByZXF1aXJlIGEgbGVuZ3RoeSBjb21tZW50IGV4cGxhaW5pbmcgdGhhdCB3ZSdy ZSBkZXZpYXRpbmcgZnJvbQpkYXRhYm9vayByZXZpc2lvbiB4Lnl5YSwgc2VjdGlvbiBmb29iYXIg YmVjYXVzZSAkcmVhc29ucy4gOi0pCg==