Merge remote-tracking branch 'stable/linux-4.9.y' into rpi-4.9.y

Merge remote-tracking branch 'stable/linux-4.9.y' into rpi-4.9.y

Merge remote-tracking branch 'stable/linux-4.9.y' into rpi-4.9.y

Merge remote-tracking branch 'stable/linux-4.9.y' into rpi-4.9.y

Merge remote-tracking branch 'stable/linux-4.9.y' into rpi-4.9.y

dwc_otg: remove unnecessary dma-mode channel halts on disconnect inte…

…rrupt

Host channels are already halted in kill_urbs_in_qh_list() with the
subsequent interrupt processing behaving as if the URB was dequeued
via HCD callback.

There's no need to clobber the host channel registers a second time
as this exposes races between the driver and host channel resulting
in hcd->free_hc_list becoming corrupted.

clk: bcm2835: Limit PCM clock to OSC and PLLD_PER

It is unwise to use sources other than the oscillator and PLLD_PER for
the PCM peripheral (and perhaps others - TBD) because their rate can
change and they may even be switched off, so explicitly restrict the
choice using dummy entries in the list of potential parents (item index
is significant).

See: raspberrypi#1949

Signed-off-by: Phil Elwell <[email protected]>

Merge remote-tracking branch 'stable/linux-4.4.y' into rpi-4.4.y

Merge remote-tracking branch 'stable/linux-4.4.y' into rpi-4.4.y

dwc_otg: fix summarize urb->actual_length for isochronous transfers

Kernel does not copy input data of ISO transfers to userspace
if actual_length is set only in ISO transfers and not summarized
in urb->actual_length. Fixes raspberrypi#903