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authorTony Lindgren <tony@atomide.com>2017-04-15 10:05:08 -0700
committerSasha Levin <alexander.levin@verizon.com>2017-06-25 22:02:21 -0400
commit94bfe4f31f46435ecb6f834cd090241860dd0d0c (patch)
tree81f4f45d63bb6df37a147204e9b0c54ac18b71c7
parent49919278f4ce90fe58a0c135ea8f3280b3e1e66e (diff)
mfd: omap-usb-tll: Fix inverted bit use for USB TLL mode
[ Upstream commit 8b8a84c54aff4256d592dc18346c65ecf6811b45 ] 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> Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
-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 c30290f33430..fe51e9709210 100644
--- a/drivers/mfd/omap-usb-tll.c
+++ b/drivers/mfd/omap-usb-tll.c
@@ -375,8 +375,8 @@ 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) {
/*