From 284f428041a15300ea65eb9ff76942a65e6628dd Mon Sep 17 00:00:00 2001 From: Rakesh Bodla Date: Wed, 7 Sep 2011 16:00:31 +0530 Subject: usb: tegra: otg: add delay for register update Added delay to make sure register is updated. Bug 864005 Change-Id: I975e1243501ea8512bdb26fa14a46bf5919e994e Reviewed-on: http://git-master/r/51086 Reviewed-by: Rakesh Bodla Tested-by: Rakesh Bodla Reviewed-by: Suresh Mangipudi Reviewed-by: Venkat Moganty --- drivers/usb/otg/tegra-otg.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/usb/otg/tegra-otg.c b/drivers/usb/otg/tegra-otg.c index 5404b96da83d..2545aa772df5 100644 --- a/drivers/usb/otg/tegra-otg.c +++ b/drivers/usb/otg/tegra-otg.c @@ -223,6 +223,8 @@ static int tegra_otg_set_peripheral(struct otg_transceiver *otg, val |= (USB_VBUS_INT_EN | USB_VBUS_WAKEUP_EN); val |= (USB_ID_INT_EN | USB_ID_PIN_WAKEUP_EN); otg_writel(tegra, val, USB_PHY_WAKEUP); + /* Add delay to make sure register is updated */ + udelay(1); clk_disable(tegra->clk); if ((val & USB_ID_STATUS) && (val & USB_VBUS_STATUS)) { -- cgit v1.2.3