Re: [PATCH v3 04/12] usb: xhci: dbc: add support for Intel xHCI dbc quirk

2015-11-18 Thread Lu Baolu
Hi, On 11/17/2015 06:28 PM, Dmitry Malkin wrote: On Mon, 16 Nov 2015 10:18:42 +0800, Lu Baolu wrote: This quirk works as well if debug host doesn't have DBC. I didn't try a DBC-capable debug host yet. Hi, I went through it again, with your v3 patch series on top of vanilla v4.3.0. Two

Re: [PATCH v3 04/12] usb: xhci: dbc: add support for Intel xHCI dbc quirk

2015-11-17 Thread Dmitry Malkin
On Mon, 16 Nov 2015 10:18:42 +0800, Lu Baolu wrote: > This quirk works as well if debug host doesn't have DBC. I didn't try a > DBC-capable debug host yet. Hi, I went through it again, with your v3 patch series on top of vanilla v4.3.0. Two targets, one host, all with Intel chipset (XHCI device

Re: [PATCH v3 04/12] usb: xhci: dbc: add support for Intel xHCI dbc quirk

2015-11-15 Thread Lu Baolu
Hi, On 11/13/2015 11:34 PM, Dmitry Malkin wrote: On Mon, 9 Nov 2015 15:38:33 +0800, Lu Baolu wrote: On Intel platform, if the debug target is connected with debug host, enabling DCE bit in command register leads to a hung bus state. In the hung state, the host system will not see a port

Re: [PATCH v3 04/12] usb: xhci: dbc: add support for Intel xHCI dbc quirk

2015-11-13 Thread Dmitry Malkin
On Mon, 9 Nov 2015 15:38:33 +0800, Lu Baolu wrote: > On Intel platform, if the debug target is connected with debug > host, enabling DCE bit in command register leads to a hung bus > state. In the hung state, the host system will not see a port > connected status bit set. Hence debug target fails

[PATCH v3 04/12] usb: xhci: dbc: add support for Intel xHCI dbc quirk

2015-11-08 Thread Lu Baolu
On Intel platform, if the debug target is connected with debug host, enabling DCE bit in command register leads to a hung bus state. In the hung state, the host system will not see a port connected status bit set. Hence debug target fails to be probed. The state could be resolved by performing a