linux-stable.git/drivers/usb/host, branch v4.9.32

usb: host: xhci-mem: allocate zeroed Scratchpad Buffer

2017-05-25T13:44:39+00:00

commit 7480d912d549f414e0ce39331870899e89a5598c upstream.

According to xHCI ch4.20 Scratchpad Buffers, the Scratchpad
Buffer needs to be zeroed.

	...
	The following operations take place to allocate
       	Scratchpad Buffers to the xHC:
	...
		b. Software clears the Scratchpad Buffer to '0'

Signed-off-by: Peter Chen 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

xhci: apply PME_STUCK_QUIRK and MISSING_CAS quirk for Denverton

2017-05-25T13:44:39+00:00

commit a0c16630d35a874e82bdf2088f58ecaca1024315 upstream.

Intel Denverton microserver is Atom based and need the PME and CAS quirks
as well.

Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: host: xhci-plat: propagate return value of platform_get_irq()

2017-05-25T13:44:39+00:00

commit 4b148d5144d64ee135b8924350cb0b3a7fd21150 upstream.

platform_get_irq() returns an error code, but the xhci-plat driver
ignores it and always returns -ENODEV. This is not correct, and
prevents -EPROBE_DEFER from being propagated properly.

Signed-off-by: Thomas Petazzoni 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

xhci: remove GFP_DMA flag from allocation

2017-05-25T13:44:39+00:00

commit 5db851cf20857c5504b146046e97cb7781f2a743 upstream.

There is no reason to restrict allocations to the first 16MB ISA DMA
addresses.

It is causing problems in a virtualization setup with enabled IOMMU
(x86_64). The result is that USB is not working in the VM.

Signed-off-by: Matthias Lange 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

ohci-pci: add qemu quirk

2017-05-25T13:44:36+00:00

commit 21a60f6e65181cad64fd66ccc8080d413721ba27 upstream.

On a loaded virtualization host (dozen guests booting at the same time)
it may happen that the ohci controller emulation doesn't manage to do
timely frame processing, with the result that the io watchdog fires and
considers the controller being dead, even though it's only the emulation
being unusual slow due to the load peak.

So, add a quirk for qemu and don't use the watchdog in case we figure we
are running on emulated ohci.  The virtual ohci controller masquerades
as apple ohci controller, but we can identify it by subsystem id.

Signed-off-by: Gerd Hoffmann 
Signed-off-by: Alan Stern 
Signed-off-by: Greg Kroah-Hartman

usb: host: xhci: print correct command ring address

2017-05-20T12:28:34+00:00

commit 6fc091fb0459ade939a795bfdcaf645385b951d4 upstream.

Print correct command ring address using 'val_64'.

Signed-off-by: Peter Chen 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: xhci: bInterval quirk for TI TUSB73x0

2017-05-20T12:28:34+00:00

commit 69307ccb9ad7ccb653e332de68effdeaaab6907d upstream.

As per [1] issue #4,
"The periodic EP scheduler always tries to schedule the EPs
that have large intervals (interval equal to or greater than
128 microframes) into different microframes. So it maintains
an internal counter and increments for each large interval
EP added. When the counter is greater than 128, the scheduler
rejects the new EP. So when the hub re-enumerated 128 times,
it triggers this condition."

This results in Bandwidth error when devices with periodic
endpoints (ISO/INT) having bInterval > 7 are plugged and
unplugged several times on a TUSB73x0 XHCI host.

Workaround this issue by limiting the bInterval to 7
(i.e. interval to 6) for High-speed or faster periodic endpoints.

[1] - http://www.ti.com/lit/er/sllz076/sllz076.pdf

Signed-off-by: Roger Quadros 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman

usb: host: ohci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths

2017-05-14T12:00:18+00:00

commit 68bd6fc3cfa98ef253e17307ccafd8ef907b5556 upstream.

Returning from for_each_available_child_of_node() loop requires cleaning
up node refcount.  Error paths lacked it so for example in case of
deferred probe, the refcount of phy node was left increased.

Fixes: 6d40500ac9b6 ("usb: ehci/ohci-exynos: Fix of_node_put() for child when getting PHYs")
Signed-off-by: Krzysztof Kozlowski 
Acked-by: Alan Stern 
Reviewed-by: Javier Martinez Canillas 
Signed-off-by: Greg Kroah-Hartman

usb: host: ehci-exynos: Decrese node refcount on exynos_ehci_get_phy() error paths

2017-05-14T12:00:18+00:00

commit 3f6026b1dcb3c8ee71198c485a72ac674c6890dd upstream.

Returning from for_each_available_child_of_node() loop requires cleaning
up node refcount.  Error paths lacked it so for example in case of
deferred probe, the refcount of phy node was left increased.

Fixes: 6d40500ac9b6 ("usb: ehci/ohci-exynos: Fix of_node_put() for child when getting PHYs")
Signed-off-by: Krzysztof Kozlowski 
Acked-by: Alan Stern 
Reviewed-by: Javier Martinez Canillas 
Signed-off-by: Greg Kroah-Hartman

usb: host: xhci-plat: enable BROKEN_PED quirk if platform requested

2017-04-12T10:41:19+00:00

[ Upstream commit 21939f003ad09355d9c975735750bb22aa37d8de ]

In case 'quirk-broken-port-ped' property is passed in via device property,
we should enable the corresponding BROKEN_PED quirk flag for XHCI core.

[rogerq@ti.com] Updated code from platform data to device property
and added DT binding.

Signed-off-by: Felipe Balbi 
Signed-off-by: Roger Quadros 
Signed-off-by: Mathias Nyman 
Signed-off-by: Greg Kroah-Hartman 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman