usb: musb: Fix idling after host mode by increasing autosuspend delay

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Looks like at least 2430 glue won't idle reliably with the 200 ms
autosuspend delay. This causes deeper idle states being blocked for
the whole SoC when disconnecting OTG A cable.

Increasing the delay to 500 ms seems to idle both MUSB and the PHY
reliably. This is probably because of time needed by the hardware
based negotiation between MUSB and the PHY.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Tony Lindgren 2016-05-31 10:05:09 -05:00 • committed by Greg Kroah-Hartman

parent a60d541a2d

commit 7e1704dcf6

1 changed files with 8 additions and 2 deletions

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drivers/usb/musb/musb_core.c

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