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Commit 26250d54 authored by Michael Trimarchi's avatar Michael Trimarchi Committed by Greg Kroah-Hartman
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usb: chipidea: usbmisc: evdo can be set e/o reset 



evdo bit can be set or reset. We can not trust evdo bit
status after bootloader stage

Signed-off-by: default avatarMichael Trimarchi <michael@amarulasolutions.com>
Signed-off-by: default avatarPeter Chen <peter.chen@nxp.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 9618d093

drivers/usb/chipidea/usbmisc_imx.c

+12 −8
Original line number Diff line number Diff line
@@ -151,14 +151,18 @@ static int usbmisc_imx25_post(struct imx_usbmisc_data *data) 
	if (data->index)

		return 0;



	if (data->evdo) {

	spin_lock_irqsave(&usbmisc->lock, flags);

	reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET;

	val = readl(reg);

		writel(val | MX25_BM_EXTERNAL_VBUS_DIVIDER, reg);



	if (data->evdo)

		val |= MX25_BM_EXTERNAL_VBUS_DIVIDER;

	else

		val &= ~MX25_BM_EXTERNAL_VBUS_DIVIDER;



	writel(val, reg);

	spin_unlock_irqrestore(&usbmisc->lock, flags);

	usleep_range(5000, 10000); /* needed to stabilize voltage */

	}



	return 0;

}