[PATCH 3.12 046/142] mfd: omap-usb-host: Fix improper mask use.

From: Jiri Slaby
Date: Fri Sep 26 2014 - 06:22:08 EST


From: Michael Welling <mwelling@xxxxxxxxxxx>

3.12-stable review patch. If anyone has any objections, please let me know.

===============

commit 46de8ff8e80a6546aa3d2fdf58c6776666301a0c upstream.

single-ulpi-bypass is a flag used for older OMAP3 silicon.

The flag when set, can excite code that improperly uses the
OMAP_UHH_HOSTCONFIG_UPLI_BYPASS define to clear the corresponding bit.
Instead it clears all of the other bits disabling all of the ports in
the process.

Signed-off-by: Michael Welling <mwelling@xxxxxxxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
Signed-off-by: Jiri Slaby <jslaby@xxxxxxx>
---
drivers/mfd/omap-usb-host.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 29ee54d68512..5dd653f9b094 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -445,7 +445,7 @@ static unsigned omap_usbhs_rev1_hostconfig(struct usbhs_hcd_omap *omap,

for (i = 0; i < omap->nports; i++) {
if (is_ehci_phy_mode(pdata->port_mode[i])) {
- reg &= OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
+ reg &= ~OMAP_UHH_HOSTCONFIG_ULPI_BYPASS;
break;
}
}
--
2.1.0

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