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authorTony Lindgren <tony@atomide.com>2017-04-15 10:05:08 -0700
committerLee Jones <lee.jones@linaro.org>2017-04-27 11:54:45 +0100
commit8b8a84c54aff4256d592dc18346c65ecf6811b45 (patch)
treebc5b2501d3cb14c4f08d1f5917b26943f746df8f /drivers/mfd
parentb5b086abe08cb88533cf2c14f7d8b22636657e28 (diff)
downloadlinux-8b8a84c54aff4256d592dc18346c65ecf6811b45.tar.bz2
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>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/omap-usb-tll.c2
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) {
/*