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| author | Dave Airlie <airlied@redhat.com> | 2019-04-15 07:51:49 +0200 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2019-04-15 07:51:49 +0200 |
| commit | f06ddb53096b4cddad2c530125a78a3c2a1d28a4 (patch) | |
| tree | 36a05922af22272dc82357ce82be21a3a9214bd0 /drivers/usb/host/xhci.h | |
| parent | Merge branch 'drm-next-5.2' of git://people.freedesktop.org/~agd5f/linux into... (diff) | |
| parent | Linux 5.1-rc5 (diff) | |
| download | linux-f06ddb53096b4cddad2c530125a78a3c2a1d28a4.tar.xz linux-f06ddb53096b4cddad2c530125a78a3c2a1d28a4.zip | |
BackMerge v5.1-rc5 into drm-next
Need rc5 for udl fix to add udl cleanups on top.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/usb/host/xhci.h')
| -rw-r--r-- | drivers/usb/host/xhci.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 652dc36e3012..9334cdee382a 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -452,6 +452,14 @@ struct xhci_op_regs { */ #define XHCI_DEFAULT_BESL 4 +/* + * USB3 specification define a 360ms tPollingLFPSTiemout for USB3 ports + * to complete link training. usually link trainig completes much faster + * so check status 10 times with 36ms sleep in places we need to wait for + * polling to complete. + */ +#define XHCI_PORT_POLLING_LFPS_TIME 36 + /** * struct xhci_intr_reg - Interrupt Register Set * @irq_pending: IMAN - Interrupt Management Register. Used to enable |