diff options
| author | Rakesh Bodla <rbodla@nvidia.com> | 2011-09-12 14:16:09 +0530 |
|---|---|---|
| committer | Annamaria Pyreddy <apyreddy@nvidia.com> | 2011-09-13 15:09:28 -0700 |
| commit | 5c1b33b215a56d4eaaeeb39702dd8f6e30c2f070 (patch) | |
| tree | 90ff4d857e0cec39bbb6dd6e0cfe765d433502de | |
| parent | bdda76108a91905c49f6b207c08f4e78e8e4903f (diff) | |
usb: tegra: otg: add delay for register update
Added delay to make sure register is updated.
Bug 874445, 864005
Reviewed-on: http://git-master/r/51086
(cherry picked from commit 284f428041a15300ea65eb9ff76942a65e6628dd)
Change-Id: I4a455ea7468e7944ba60c8aa3d2163d747e1f9b6
Reviewed-on: http://git-master/r/51758
Reviewed-by: Rakesh Bodla <rbodla@nvidia.com>
Tested-by: Rakesh Bodla <rbodla@nvidia.com>
Reviewed-by: Venkat Moganty <vmoganty@nvidia.com>
| -rw-r--r-- | drivers/usb/otg/tegra-otg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/usb/otg/tegra-otg.c b/drivers/usb/otg/tegra-otg.c index 9c894743d5d6..f6a6592379ea 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)) { |