Commit 86ad01a9 authored Sep 12, 2012 by Richard Zhao Committed by Greg Kroah-Hartman Sep 12, 2012

USB: chipidea: delay 2ms before read ID status at probe time



The ID pin needs 1ms debounce time, even at probe time. We delay 2ms
to be on the safe side.

Tested-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Richard Zhao <richard.zhao@freescale.com>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent b4dbb258

drivers/usb/chipidea/core.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -462,6 +462,8 @@ static int __devinit ci_hdrc_probe(struct platform_device *pdev)

		if (ci->roles[CI_ROLE_HOST] && ci->roles[CI_ROLE_GADGET]) {
		ci->is_otg = true;
		/* ID pin needs 1ms debouce time, we delay 2ms for safe */
		mdelay(2);
		ci->role = ci_otg_role(ci);
		} else {
		ci->role = ci->roles[CI_ROLE_HOST]