Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1639711

[PATCH 4.9 052/103] usb: dwc2: host: use msleep() for long delay

Show all headers | View raw

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Nicholas Mc Guire <hofrat@osadl.org>

commit d3fe81d2ccc41b355e494413115c0c7c18426fa1 upstream.

ulseep_range() uses hrtimers and provides no advantage over msleep()
for larger delays. Fix up the 100ms delays here passing the adjusted "min"
value to msleep(). This helps reduce the load on the hrtimer subsystem.

Link: http://lkml.org/lkml/2017/1/11/377
Fixes: commit 2938fc63e0c2 ("usb: dwc2: Properly account for the force mode delays")
Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Signed-off-by: John Youn <johnyoun@synopsys.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/usb/dwc2/core.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/usb/dwc2/core.c
+++ b/drivers/usb/dwc2/core.c
@@ -455,7 +455,7 @@ static void dwc2_clear_force_mode(struct
 	dwc2_writel(gusbcfg, hsotg->regs + GUSBCFG);
 
 	if (dwc2_iddig_filter_enabled(hsotg))
-		usleep_range(100000, 110000);
+		msleep(100);
 }
 
 /*

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 4.9 000/103] 4.9.28-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 016/103] power: supply: bq24190_charger: Install irq_handler_thread() at end of probe() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 027/103] mwifiex: debugfs: Fix (sometimes) off-by-1 SSID print Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 048/103] x86/platform/intel-mid: Correct MSI IRQ line for watchdog device Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 002/103] drm/sti: fix GDP size to support up to UHD resolution Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 008/103] cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 052/103] usb: dwc2: host: use msleep() for long delay Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 020/103] arm64: dts: r8a7795: Mark EthernetAVB device node disabled Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 017/103] power: supply: bq24190_charger: Call power_supply_changed() for relevant component Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 019/103] power: supply: bq24190_charger: Handle fault before status on interrupt Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 001/103] 9p: fix a potential acl leak Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 011/103] powerpc/ftrace: Fix confusing help text for DISABLE_MPROFILE_KERNEL Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  [PATCH 4.9 009/103] powerpc/mm: Fixup wrong LPCR_VRMASD value Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-11 17:20 +0200
  Re: [PATCH 4.9 000/103] 4.9.28-stable review Guenter Roeck <linux@roeck-us.net> - 2017-05-11 23:10 +0200
    Re: [PATCH 4.9 000/103] 4.9.28-stable review Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-05-12 08:30 +0200
  Re: [PATCH 4.9 000/103] 4.9.28-stable review Shuah Khan <shuahkh@osg.samsung.com> - 2017-05-12 17:30 +0200
  Re: [PATCH 4.9 000/103] 4.9.28-stable review Guenter Roeck <linux@roeck-us.net> - 2017-05-13 04:50 +0200

csiph-web