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author | Weitao Wang <WeitaoWang-oc@zhaoxin.com> | 2023-06-02 17:40:08 +0300 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-06-13 12:34:50 +0300 |
commit | d9b0328d0b8b8298dfdc97cd8e0e2371d4bcc97b (patch) | |
tree | 0adac840c5b979e7332e4ab5f75ee10eff11d20f /drivers/usb/host/xhci.h | |
parent | 2a865a652299f5666f3b785cbe758c5f57453036 (diff) | |
download | linux-d9b0328d0b8b8298dfdc97cd8e0e2371d4bcc97b.tar.xz |
xhci: Show ZHAOXIN xHCI root hub speed correctly
Some ZHAOXIN xHCI controllers follow usb3.1 spec, but only support
gen1 speed 5Gbps. While in Linux kernel, if xHCI suspport usb3.1,
root hub speed will show on 10Gbps.
To fix this issue of ZHAOXIN xHCI platforms, read usb speed ID
supported by xHCI to determine root hub speed. And add a quirk
XHCI_ZHAOXIN_HOST for this issue.
[fix warning about uninitialized symbol -Mathias]
Suggested-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Weitao Wang <WeitaoWang-oc@zhaoxin.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Message-ID: <20230602144009.1225632-11-mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/host/xhci.h')
-rw-r--r-- | drivers/usb/host/xhci.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 5a495126c8ba..7e282b4522c0 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1905,6 +1905,7 @@ struct xhci_hcd { #define XHCI_SUSPEND_RESUME_CLKS BIT_ULL(43) #define XHCI_RESET_TO_DEFAULT BIT_ULL(44) #define XHCI_ZHAOXIN_TRB_FETCH BIT_ULL(45) +#define XHCI_ZHAOXIN_HOST BIT_ULL(46) unsigned int num_active_eps; unsigned int limit_active_eps; |