usb: chipidea: msm: Handle phy power states

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The ULPI phy on qcom platforms needs to be initialized and
powered on after a USB reset and before we toggle the run/stop
bit. Otherwise, the phy locks up and doesn't work properly. Hook
the phy initialization into the RESET event and the phy power off
into the STOPPED event.

Acked-by: Peter Chen <peter.chen@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>

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Stephen Boyd 2016-12-28 14:57:06 -08:00 • committed by Peter Chen

parent 1b8fc5a525

commit 11893dae63

4 changed files with 33 additions and 25 deletions

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include/linux/usb/chipidea.h

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