diff options
| author | Gregory Herrero <gregory.herrero@intel.com> | 2015-09-22 16:16:45 +0300 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-10-01 20:40:16 +0300 |
| commit | 08c4ffc24087d1949948002abdbac0d1e71ade5d (patch) | |
| tree | 3298f2b031f9d40c51b3c0fb68748af49c73edd5 /drivers/usb/dwc2/core.c | |
| parent | bea78555f71e01196d0a4613ffefd4c8920ba439 (diff) | |
| download | linux-08c4ffc24087d1949948002abdbac0d1e71ade5d.tar.xz | |
usb: dwc2: host: reset frame number after suspend
Frame number is reset in hardware after exiting hibernation.
Thus, reset frame_number and ensure qh are queued with correct
sched_frame.
Otherwise, qh->sched_frame may be too high compared to
current frame number (which is 0). This can delay addition of qh in
the list of transfers until frame number reaches qh->sched_frame.
Signed-off-by: Gregory Herrero <gregory.herrero@intel.com>
Signed-off-by: Mian Yousaf Kaukab <yousaf.kaukab@intel.com>
Tested-by: Robert Baldyga <r.baldyga@samsung.com>
Tested-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Tested-by: John Youn <johnyoun@synopsys.com>
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc2/core.c')
| -rw-r--r-- | drivers/usb/dwc2/core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/usb/dwc2/core.c b/drivers/usb/dwc2/core.c index 0bfc987dd373..f5c3120f4879 100644 --- a/drivers/usb/dwc2/core.c +++ b/drivers/usb/dwc2/core.c @@ -116,6 +116,7 @@ static int dwc2_restore_host_registers(struct dwc2_hsotg *hsotg) dwc2_writel(hr->hprt0, hsotg->regs + HPRT0); dwc2_writel(hr->hfir, hsotg->regs + HFIR); + hsotg->frame_number = 0; return 0; } |