| Message ID | 20230421203853.387210-2-WeitaoWang-oc@zhaoxin.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Fix some issues of xHCI for zhaoxin | expand |
On 21.4.2023 23.38, Weitao Wang wrote: > Add a quirk XHCI_ZHAOXIN_HOST for zhaoxin xhci to fix issues, > there are two cases will be used. > - add u1/u2 support. > - fix xHCI root hub speed show issue in zhaoxin platform. > > Add a quirk XHCI_ZHAOXIN_TRB_FETCH to fix TRB prefetch issue. > > On Zhaoxin ZX-100 project, xHCI can't work normally after resume > from system Sx state. To fix this issue, when resume from system > sx state, reinitialize xHCI instead of restore. > So, Add XHCI_RESET_ON_RESUME quirk for zx-100 to fix issue of > resuming from system sx state. > > Cc: stable@vger.kernel.org > Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com> > --- I'd split this series into different logical parts: patch 1/4 Set XHCI_RESET_ON_RESUME quirk to ZHAOXIN host to fix resume issue. cc: stable patch 2/4 Add XHCI_ZHAOXIN_TRB_FETCH quirk flag together with code that allocates double pages cc: stable patch 3/4 Add XHCI_ZHAOXIN_HOST quirk flag together with code that corrects USB3 roothub minor version cc: stable patch 4/4 Set XHCI_LPM_SUPPORT quirk together with code that sets tier policy and u1/u2 timeouts, Don't add stable as this is about adding feature support. Thanks -Mathias
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 6db07ca419c3..53b7d8a1ed0a 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -334,6 +334,17 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci) pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4)) xhci->quirks |= XHCI_NO_SOFT_RETRY; + if (pdev->vendor == PCI_VENDOR_ID_ZHAOXIN) { + xhci->quirks |= XHCI_LPM_SUPPORT; + xhci->quirks |= XHCI_ZHAOXIN_HOST; + if (pdev->device == 0x9202) { + xhci->quirks |= XHCI_RESET_ON_RESUME; + xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + } + if (pdev->device == 0x9203) + xhci->quirks |= XHCI_ZHAOXIN_TRB_FETCH; + } + /* xHC spec requires PCI devices to support D3hot and D3cold */ if (xhci->hci_version >= 0x120) xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 786002bb35db..8f8f0e91b0dc 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1905,6 +1905,8 @@ struct xhci_hcd { #define XHCI_EP_CTX_BROKEN_DCS BIT_ULL(42) #define XHCI_SUSPEND_RESUME_CLKS BIT_ULL(43) #define XHCI_RESET_TO_DEFAULT BIT_ULL(44) +#define XHCI_ZHAOXIN_HOST BIT_ULL(45) +#define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(46) unsigned int num_active_eps; unsigned int limit_active_eps;
Add a quirk XHCI_ZHAOXIN_HOST for zhaoxin xhci to fix issues, there are two cases will be used. - add u1/u2 support. - fix xHCI root hub speed show issue in zhaoxin platform. Add a quirk XHCI_ZHAOXIN_TRB_FETCH to fix TRB prefetch issue. On Zhaoxin ZX-100 project, xHCI can't work normally after resume from system Sx state. To fix this issue, when resume from system sx state, reinitialize xHCI instead of restore. So, Add XHCI_RESET_ON_RESUME quirk for zx-100 to fix issue of resuming from system sx state. Cc: stable@vger.kernel.org Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com> --- v1->v2 - Add more quirks of xhci for zhaoxin. drivers/usb/host/xhci-pci.c | 11 +++++++++++ drivers/usb/host/xhci.h | 2 ++ 2 files changed, 13 insertions(+)