Danilo Krummrich cb88a05887 usb: quirks: add control message delay for 1b1c:1b20 ... Corsair Strafe RGB keyboard does not respond to usb control messages sometimes and hence generates timeouts. Commit de3af5bf25 ("usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard") tried to fix those timeouts by adding USB_QUIRK_DELAY_INIT. Unfortunately, even with this quirk timeouts of usb_control_msg() can still be seen, but with a lower frequency (approx. 1 out of 15): [ 29.103520] usb 1-8: string descriptor 0 read error: -110 [ 34.363097] usb 1-8: can't set config #1, error -110 Adding further delays to different locations where usb control messages are issued just moves the timeouts to other locations, e.g.: [ 35.400533] usbhid 1-8:1.0: can't add hid device: -110 [ 35.401014] usbhid: probe of 1-8:1.0 failed with error -110 The only way to reliably avoid those issues is having a pause after each usb control message. In approx. 200 boot cycles no more timeouts were seen. Addionaly, keep USB_QUIRK_DELAY_INIT as it turned out to be necessary to have the delay in hub_port_connect() after hub_port_init(). The overall boot time seems not to be influenced by these additional delays, even on fast machines and lightweight distributions. Fixes: de3af5bf25 ("usb: quirks: add delay init quirk for Corsair Strafe RGB keyboard") Cc: stable@vger.kernel.org Signed-off-by: Danilo Krummrich <danilokrummrich@dk-develop.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-03-06 09:17:34 -08:00
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acpi	ACPICA: Update version to 20180105	2018-02-06 10:32:13 +01:00
asm-generic	bug.h: work around GCC PR82365 in BUG()	2018-02-21 15:35:43 -08:00
clocksource
crypto	Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6	2018-01-31 14:22:45 -08:00
drm	Fixes for 4.16. I contains fixes for deadlock on runtime suspend on few	2018-02-22 08:39:26 +10:00
dt-bindings	MIPS changes for 4.16	2018-02-07 11:22:44 -08:00
keys
kvm	KVM changes for 4.16	2018-02-10 13:16:35 -08:00
linux	usb: quirks: add control message delay for 1b1c:1b20	2018-03-06 09:17:34 -08:00
math-emu
media	vfs: do bulk POLL* -> EPOLL* replacement	2018-02-11 14:34:03 -08:00
memory
misc	powerpc updates for 4.16	2018-02-02 10:01:04 -08:00
net	Various fixes across the tree, the shortlog basically says it all:	2018-02-22 15:17:01 -05:00
pcmcia
ras
rdma	IB/uverbs: Use u64_to_user_ptr() not a union	2018-02-15 14:59:45 -07:00
scsi	SCSI postmerge on 20180202	2018-02-03 13:07:56 -08:00
soc	ARM: SoC driver updates for 4.16	2018-02-01 16:35:31 -08:00
sound	Merge branch 'topic/fixes' into for-linus	2018-02-12 09:36:26 +01:00
target
trace	Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2018-02-14 17:02:15 -08:00
uapi	Merge branch 'fixes-v4.16-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security	2018-02-23 15:04:24 -08:00
video	fbdev changes for v4.16:	2018-02-07 13:10:43 -08:00
xen