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usb: chipidea: udc: otg_set_peripheral is useless for some chipidea users
It is useless at below cases: - If we implement both usb host and device at chipidea driver. - If we don't need phy->otg. Tested-by: Marek Vasut <marex@denx.de> Signed-off-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1805,7 +1805,12 @@ static int udc_start(struct ci_hdrc *ci)
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if (ci->transceiver) {
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retval = otg_set_peripheral(ci->transceiver->otg,
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&ci->gadget);
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if (retval)
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/*
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* If we implement all USB functions using chipidea drivers,
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* it doesn't need to call above API, meanwhile, if we only
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* use gadget function, calling above API is useless.
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*/
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if (retval && retval != -ENOTSUPP)
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goto put_transceiver;
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}
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