Re: [PATCH v3] xhci: workaround CSS timeout on AMD SNPS 3.0 xHC

2018-11-27 Thread Mathias Nyman
On 27.11.2018 09:44, Kai Heng Feng wrote: On Nov 24, 2018, at 00:24, Singh, Sandeep wrote: From: Sandeep Singh Occasionally AMD SNPS 3.0 xHC does not respond to CSS when set, also it does not flag anything on SRE and HCE to point the internal xHC errors on USBSTS register. This stalls the

Re: [PATCH v3] xhci: workaround CSS timeout on AMD SNPS 3.0 xHC

2018-11-26 Thread Kai Heng Feng
> On Nov 24, 2018, at 00:24, Singh, Sandeep wrote: > > From: Sandeep Singh > > Occasionally AMD SNPS 3.0 xHC does not respond to > CSS when set, also it does not flag anything on SRE and HCE > to point the internal xHC errors on USBSTS register. This stalls > the entire system wide suspend a

[PATCH v3] xhci: workaround CSS timeout on AMD SNPS 3.0 xHC

2018-11-23 Thread Singh, Sandeep
From: Sandeep Singh Occasionally AMD SNPS 3.0 xHC does not respond to CSS when set, also it does not flag anything on SRE and HCE to point the internal xHC errors on USBSTS register. This stalls the entire system wide suspend and there is no point in stalling just because of xHC CSS is not respon