Hi, Roger Quadros <rogerq@xxxxxx> writes: > Mathias & Felipe, > > On 17/11/16 17:01, Roger Quadros wrote: >> Hi, >> >> Some XHCI controllers e.g. dwc3 based have a broken Port disable [1]. >> >> If the attached high-speed device is misbehaving, the USB stack typically >> disables the port using the PED bit in PORTSC. For the controllers that >> have broken port disable, the port fails to detect further attach/detach >> events and so high-speed devices can no longer be enumerated on the >> port. The workaround is to prevent port disable using PED on such >> controllers. >> >> We add a new BROKEN_PED quirk flag and 'quirk-broken-port-ped' device >> property and prevent port disable using PED if we encounter the quirk flag. >> >> [1] - AM572x Silicon Errata http://www.ti.com/lit/er/sprz429j/sprz429j.pdf >> Section i896— USB xHCI Port Disable Feature Does Not Work > > Any comments on this series? > patch 1 is at v3. Rest 2 are original. none from me. Mathias? -- balbi
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