diff options
| author | Rakesh Bodla <rbodla@nvidia.com> | 2011-09-07 16:00:31 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-09-27 17:48:30 -0700 |
| commit | 00affb2c03ac7918ffc0961375855d5e4ff3fbb1 (patch) | |
| tree | 157206abdb25f2adb0f773fda30b325d98a2089d | |
| parent | a5d7919bc660f7ed1314b9ce44cb20ad2d05c187 (diff) | |
usb: tegra: otg: add delay for register update
Added delay to make sure register is updated.
Bug 864005
Reviewed-on: http://git-master/r/51086
(cherry picked from commit 284f428041a15300ea65eb9ff76942a65e6628dd)
Change-Id: I4b0fa8e60664b9bf523fa6675bc1847e98703a55
Reviewed-on: http://git-master/r/54645
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 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)) { |