powerpc/usb: fix bug of CPU hang when missing USB PHY clock

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when missing USB PHY clock, kernel booting up will hang during USB
initialization. We should check USBGP[PHY_CLK_VALID] bit to avoid
CPU hanging in this case.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Shengzhou Liu 2012-08-22 18:17:00 +08:00 • committed by Greg Kroah-Hartman

parent 67990472c7

commit 3735ba8db8

3 changed files with 42 additions and 18 deletions

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58

drivers/usb/host/ehci-fsl.c

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1

drivers/usb/host/ehci-fsl.h

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1

include/linux/fsl_devices.h

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