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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>
This commit is contained in:
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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8
drivers/usb/chipidea/host.c
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@@ -90,8 +90,12 @@ static int ehci_ci_reset(struct usb_hcd *hcd)
ehci->need_io_watchdog = 0;
if (ci->platdata->notify_event)
ci->platdata->notify_event(ci, CI_HDRC_CONTROLLER_RESET_EVENT);
if (ci->platdata->notify_event) {
ret = ci->platdata->notify_event(ci,
CI_HDRC_CONTROLLER_RESET_EVENT);
if (ret)
return ret;
}
ci_platform_configure(ci);