diff options
| author | Mark Brown <broonie@kernel.org> | 2019-04-02 16:20:47 +0700 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2019-04-02 16:20:47 +0700 |
| commit | 6d5e2bf9d203e4d9e08ca2e9420c6ff22ad190af (patch) | |
| tree | c2c20648773d3326f942e34ef73b06566f7a19ec /drivers/usb/host/xhci.h | |
| parent | b820d52e7eed7b30b2dfef5f4213a2bc3cbea6f3 (diff) | |
| parent | 257f9053c0204ea47491aa236004fd1226f75fa8 (diff) | |
Merge branch 'acpi-utils' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm into asoc-5.2
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 |