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: power management problems in ehci-omap From: Roger Quadros Message-Id: <753727a9-e155-d24a-9732-1fee10b21dc7@ti.com> Date: Wed, 7 Feb 2018 11:21:45 +0200 To: Andreas Kemnade , Tony Lindgren Cc: Michael Nazzareno Trimarchi , USB list , Linux OMAP Mailing List , Discussions about the Letux Kernel List-ID: SGksCgpPbiAwNi8wMi8xOCAyMDo0MCwgQW5kcmVhcyBLZW1uYWRlIHdyb3RlOgo+IE9uIFR1ZSwg NiBGZWIgMjAxOCAxMDoxNjoyMyAtMDgwMAo+IFRvbnkgTGluZGdyZW4gPHRvbnlAYXRvbWlkZS5j b20+IHdyb3RlOgo+IAo+PiAqIEFuZHJlYXMgS2VtbmFkZSA8YW5kcmVhc0BrZW1uYWRlLmluZm8+ IFsxODAyMDYgMTg6MDRdOgo+Pj4gT24gVHVlLCA2IEZlYiAyMDE4IDA5OjE3OjM3IC0wODAwCj4+ PiBUb255IExpbmRncmVuIDx0b255QGF0b21pZGUuY29tPiB3cm90ZTogIAo+Pj4+IHVhcnRzPSQo ZmluZCAvc3lzL2NsYXNzL3R0eS90dHlbU09dKi9wb3dlci8gLXR5cGUgZCAyPi9kZXYvbnVsbCkK Pj4+PiBmb3IgdWFydCBpbiAkdWFydHM7IGRvCj4+Pj4gCWVjaG8gZW5hYmxlZCA+ICR1YXJ0L3dh a2V1cCAyPiYxCj4+Pj4gCWVjaG8gYXV0byA+ICR1YXJ0L2NvbnRyb2wgMj4mMQo+Pj4+IGRvbmUK Pj4+PiAgIAo+Pj4KPj4+IGhtbSwgdGhpcyBsb29rcyBhIGJpdCBsaWtlIHJ1bnRpbWUgc3VzcGVu ZC4gIAo+Pgo+PiBOb3Qgb25seSB0aGF0LCBpdCBlbmFibGVzIHdha2V1cCBmb3IgVUFSVCBhbHNv IGZvciBzdXNwZW5kIDopCj4+Cj4gV2UgYXJlIHVzaW5nIHRoZSBydGMgZm9yIHdha2V1cCBhbmQg bWVhc3VyZSBkaXNjaGFyZ2Ugb2YgYmF0dGVyeQo+IGZvciBhIHRpbWUgZnJhbWUgb2YgYWJvdXQg MzAwIHNlY29uZHMuCj4gCj4+IFRoYXQgaXMgaWYgeW91ciBkdHMgaGFzIGl0IGNvbmZpZ3VyZWQg d2l0aCBpbnRlcnJ1cHRzLWV4dGVuZGVkCj4+IGZvciB0aGUgY29uc29sZSBVQVJUIGxpa2Ugb21h cDMtYmVhZ2xlLXhtLmR0cyBoYXMgZm9yIGV4YW1wbGUuCj4+IFNlZW1zIGxpa2UgdGhlIGd0YTA0 IGR0cyBkb24ndCBoYXZlIHRoZXNlLi4gQW5kIHlvdSBhbHNvIHdhbnQKPj4gdG8gaGF2ZSBjaG9z ZW4gd2l0aCBzdGRvdXQtcGF0aCA9ICZ1YXJ0MyBvciB3aGF0ZXZlciB0aGUgZGVidWcKPj4gVUFS VCBpcyBmb3IgZWFybHljb24gdG8gd29yay4KPj4KPj4+IEkgbWVhbiBzdXNwZW5kIGFrYSBlY2hv IG1lbSA+L3N5cy9wb3dlci9zdGF0ZQo+Pj4gICAKPj4+PiBlY2hvIC1uIDEgPiAvc3lzL2tlcm5l bC9kZWJ1Zy9wbV9kZWJ1Zy9lbmFibGVfb2ZmX21vZGUgIAo+Pgo+PiBBbmQgdGhlIGFib3ZlIHdp bGwgZW5hYmxlIFNvQyBhbmQgUE1JQyBvZmYgbW9kZXMsIHdoaWNoIHdpbGwgYWxzbwo+PiB0YWtl IHRoZSBzdXNwZW5kIHBvd2VyIHRvIHNvbWUgbXVjaCBtdWNoIGxvd2VyIHZhbHVlIDopIFlvdSBu ZWVkCj4+IHRvIGNvbmZpZ3VyZSB0aGUgUE1JQyB0b28gZGVwZW5kaW5nIGlmIHRoZSBvc2NpbGxh dG9yIGNhbiBiZSB0dXJuZWQKPj4gb2ZmLCBpbiB0aGF0IGNhc2Ugc2V0ICJ0aSx0d2w0MDMwLXBv d2VyLWlkbGUtb3NjLW9mZiIuIFRoYXQgdG9vCj4+IHNlZW1zIHRvIGJlIG1pc3NpbmcgaW4gZ3Rh MDQgZHRzIGZpbGVzLi4KPj4KPiBJdCB3YXMgaW4gb3VyIHRyZWUuIEl0IGNhbiBiZSBlbmFibGVk IGZvciB0aGUgZ3RhMDRhNS4gV2UgaGF2ZSBldmVuIGRvbmUKPiB0aGF0LiBCdXQgdGhlbiBzdXNw ZW5kIHdoaWxlIGNoYXJnaW5nIGJyZWFrcy4gSSBoYXZlIG5vIGlkZWEgaG93IHRvIGRvIGEKPiBw cm9wZXIgaWYtbm90LWNoYXJnaW5nLXBvd2VyLWlkbGUtb3NjLW9mZiBwYXRjaC4uLiAKPiAKPiBZ ZXMgdGhlcmUgYXJlIG90aGVyIHBsYWNlcyB3aGVyZSB3ZSBjYW4gb3B0aW1pemUgc3VzcGVuZCBj dXJyZW50LiBCdXQKPiBsZXRzIGZpcnN0IGZpbmQgb3V0IHdoeSBlaGNpLW9tYXAgc2VlbXMgdG8g Y2F1c2UgdHJvdWJsZSBoZXJlLgo+IFNvIHdlIGFyZSBsb29raW5nIGZvciBhcm91bmQgMTVtQSBv ZiBhZGRpdGlvbmFsIHN1c3BlbmQgY3VycmVudCB3aGVuIHRoZQo+IG1vZHVsZSBpcyBsb2FkZWQu IAo+IFNob3VsZG4ndCB0aGUgcmVzZXQgbGluZSBvZiB0aGUgcGh5ICh1c2Itbm9wLXhjZWl2KSBi ZSBzZXQgdG8gbG93IHdoZW4KPiBnb2luZyB0byBzdXNwZW5kPyBJIGRvIG5vdCBzZWUgY29kZSBo b3cgdG8gZG8gaXQuIEkgZ3Vlc3MgdGhhdCBpcyB0aGUKPiByZWFzb24uCj4gCj4gQlRXOgo+IHJv b3RAbGV0dXg6fiMgY2F0IC9zeXMvYnVzL3BsYXRmb3JtL2RldmljZXMvNDgwNjQ4MDAuZWhjaS9w b3dlci9ydW50aW1lX3N0YXR1cyAKPiBhY3RpdmUKCgpQTSBoYW5kbGluZyBpcyBub3QgeWV0IHRo ZXJlIGluIHRoZSBlaGNpLW9tYXAgZHJpdmVyLgoKPiBzdGF0aWMgc3RydWN0IHBsYXRmb3JtX2Ry aXZlciBlaGNpX2hjZF9vbWFwX2RyaXZlciA9IHsKPiAgICAgICAgIC5wcm9iZSAgICAgICAgICAg ICAgICAgID0gZWhjaV9oY2Rfb21hcF9wcm9iZSwKPiAgICAgICAgIC5yZW1vdmUgICAgICAgICAg ICAgICAgID0gZWhjaV9oY2Rfb21hcF9yZW1vdmUsCj4gICAgICAgICAuc2h1dGRvd24gICAgICAg ICAgICAgICA9IHVzYl9oY2RfcGxhdGZvcm1fc2h1dGRvd24sCj4gICAgICAgICAvKi5zdXNwZW5k ICAgICAgICAgICAgICA9IGVoY2lfaGNkX29tYXBfc3VzcGVuZCwgKi8KPiAgICAgICAgIC8qLnJl c3VtZSAgICAgICAgICAgICAgID0gZWhjaV9oY2Rfb21hcF9yZXN1bWUsICovCj4gICAgICAgICAu ZHJpdmVyID0gewo+ICAgICAgICAgICAgICAgICAubmFtZSAgICAgICAgICAgPSBoY2RfbmFtZSwK PiAgICAgICAgICAgICAgICAgLm9mX21hdGNoX3RhYmxlID0gb21hcF9laGNpX2R0X2lkcywKPiAg ICAgICAgIH0KPiB9OwoKVGhlcmUgaXMgYWxzbyBzb21lIGNvLXJlbGF0aW9uIHdpdGggdGhlIHBh cmVudCBkcml2ZXIKZHJpdmVycy9tZmQvb21hcC11c2ItaG9zdC5jCgpHZXR0aW5nIGxvdyBwb3dl ciBvbiBzeXN0ZW0gc3VzcGVuZCBzaG91bGQgYmUgZWFzeSBhcyB3ZSBtb3N0IHByb2JhYmx5IGRv bid0Cm5lZWQgd2FrZXVwIHRvIHdvcmsgaW4gdGhpcyBjYXNlLiBUaGlzIHNob3VsZCBmaXggdGhl IGluY3JlYXNlZCBwb3dlciBkdXJpbmcKc3lzdGVtIHN1c3BlbmQuCgpUbyBmaXggYWN0aXZlIHBv d2VyIGNvbnN1bXB0aW9uIHdlIG5lZWQgdG8gaW1wbGVtZW50IHJ1bnRpbWUgUE0uCkhvd2V2ZXIs IGZvciBydW50aW1lIHN1c3BlbmQgY2FzZSB3ZSBkbyBuZWVkIHJlbW90ZS13YWtldXAgdG8gd29y ayBlbHNlIHdlCndvbid0IGJlIGFibGUgdG8gZGV0ZWN0IGFueSBuZXcgVVNCIGRldmljZXMgYWZ0 ZXIgdGhlIGhvc3QgcnVudGltZSBzdXNwZW5kcy4KRm9yIHRoaXMgd2UgbmVlZCB0byByZW11eCBv bmUgb2YgdGhlIFBIWSBsaW5lcyBpbnRvIGEgR1BJTyB0byBjYXB0dXJlIHRoZSB3YWtlIGV2ZW50 LgpUaGlzIGlzIHdoZXJlIHRoZSBnZW5lcmljIHdha2VpcnEgc3VwcG9ydCBjb21lcyBpbi4K