From 26250d540d2baf32e265e9e6df120b9be5962587 Mon Sep 17 00:00:00 2001 From: Michael Trimarchi Date: Thu, 29 Mar 2018 17:52:46 +0800 Subject: 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: Michael Trimarchi Signed-off-by: Peter Chen Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/usbmisc_imx.c | 20 ++++++++++++-------- 1 file changed, 12 insertions(+), 8 deletions(-) (limited to 'drivers/usb/chipidea') diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index a52f5a86f177..1f47ef625069 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -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); - spin_unlock_irqrestore(&usbmisc->lock, flags); - usleep_range(5000, 10000); /* needed to stabilize voltage */ - } + spin_lock_irqsave(&usbmisc->lock, flags); + reg = usbmisc->base + MX25_USB_PHY_CTRL_OFFSET; + val = readl(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; } -- cgit v1.2.3