mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode

Commit 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver")
added support for USB TLL, but uses OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
bit the wrong way. The comments in the code are correct, but the inverted
use of OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF causes the register to be
enabled instead of disabled unlike what the comments say.

Without this change the Wrigley 3G LTE modem on droid 4 EHCI bus can
be only pinged few times before it stops responding.

Fixes: 16fa3dc75c22 ("mfd: omap-usb-tll: HOST TLL platform driver")
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/mfd/omap-usb-tll.c b/drivers/mfd/omap-usb-tll.c
index 1aa74c4c3ced..9d167c9af2c6 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -377,8 +377,8 @@ int omap_tll_init(struct usbhs_omap_platform_data *pdata)
                                  * and use SDR Mode
                                  */
                                 reg &= ~(OMAP_TLL_CHANNEL_CONF_UTMIAUTOIDLE
-                                        | OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF
                                         | OMAP_TLL_CHANNEL_CONF_ULPIDDRMODE);
+                                reg |= OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF;
                         } else if (pdata->port_mode[i] ==
                                         OMAP_EHCI_PORT_MODE_HSIC) {
                                 /*