diff options
| author |   Nicholas Mc Guire <hofrat@osadl.org> | 2017-01-12 16:54:03 +0100 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2017-01-24 11:04:10 +0200 |
| commit | 04a9db799253e0993ebb46b4096f7514c62193f7 (patch) | |
| tree | ff12afcdf11373a3f5a5876c0eb76d823da66246 /drivers/usb/dwc2 | |
| parent | usb: dwc3: exynos: Remove MODULE_ALIAS() (diff) | |
| download | linux-dev-04a9db799253e0993ebb46b4096f7514c62193f7.tar.xz linux-dev-04a9db799253e0993ebb46b4096f7514c62193f7.zip | |
usb: dwc2: host: use msleep() for long delays
ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. Fix up the 20+ ms delays here passing the adjusted "min"
value to msleep(). This helps reduce the load on the hrtimer subsystem.
Acked-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb/dwc2')
| -rw-r--r-- | drivers/usb/dwc2/hcd.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index 911c3b36ac06..37ee72d2c734 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -2150,7 +2150,7 @@ static int dwc2_hcd_endpoint_disable(struct dwc2_hsotg *hsotg, } spin_unlock_irqrestore(&hsotg->lock, flags); - usleep_range(20000, 40000); + msleep(20); spin_lock_irqsave(&hsotg->lock, flags); qh = ep->hcpriv; if (!qh) { @@ -3240,7 +3240,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work) "Waiting for Peripheral Mode, Mode=%s\n", dwc2_is_host_mode(hsotg) ? "Host" : "Peripheral"); - usleep_range(20000, 40000); + msleep(20); if (++count > 250) break; } @@ -3261,7 +3261,7 @@ static void dwc2_conn_id_status_change(struct work_struct *work) dev_info(hsotg->dev, "Waiting for Host Mode, Mode=%s\n", dwc2_is_host_mode(hsotg) ? "Host" : "Peripheral"); - usleep_range(20000, 40000); + msleep(20); if (++count > 250) break; } @@ -3354,7 +3354,7 @@ static void dwc2_port_suspend(struct dwc2_hsotg *hsotg, u16 windex) spin_unlock_irqrestore(&hsotg->lock, flags); - usleep_range(200000, 250000); + msleep(200); } else { spin_unlock_irqrestore(&hsotg->lock, flags); } @@ -3378,7 +3378,7 @@ static void dwc2_port_resume(struct dwc2_hsotg *hsotg) pcgctl &= ~PCGCTL_STOPPCLK; dwc2_writel(pcgctl, hsotg->regs + PCGCTL); spin_unlock_irqrestore(&hsotg->lock, flags); - usleep_range(20000, 40000); + msleep(20); spin_lock_irqsave(&hsotg->lock, flags); } @@ -3691,7 +3691,7 @@ static int dwc2_hcd_hub_control(struct dwc2_hsotg *hsotg, u16 typereq, } /* Clear reset bit in 10ms (FS/LS) or 50ms (HS) */ - usleep_range(50000, 70000); + msleep(50); hprt0 &= ~HPRT0_RST; dwc2_writel(hprt0, hsotg->regs + HPRT0); hsotg->lx_state = DWC2_L0; /* Now back to On state */ |