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

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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>
This commit is contained in:
Richard Zhao 2012-09-12 14:58:07 +03:00 committed by Greg Kroah-Hartman
parent b4dbb258b6
commit 86ad01a907
1 changed files with 2 additions and 0 deletions
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2
drivers/usb/chipidea/core.c
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@ -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]