usb: otg: twl4030-usb: Fix unbalanced regulator disables at module removal

Function twl4030_usb_remove can cause unbalanced regulator disables in
twl4030_phy_power if the cable is not connected. Regulator enable/disable
calls are in balance only if the twl4030_phy_resume was called prior the
twl4030_usb_remove, that is, the cable was connected.

Fix this by checking the 'asleep' variable in twl4030_usb_remove since that
variable is used to check state in other functions.

Signed-off-by: Jarkko Nikula <jhnikula@gmail.com>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/usb/otg/twl4030-usb.c b/drivers/usb/otg/twl4030-usb.c
index d335f484fcd8..6ca505f333e4 100644
--- a/drivers/usb/otg/twl4030-usb.c
+++ b/drivers/usb/otg/twl4030-usb.c
@@ -678,7 +678,8 @@ static int __exit twl4030_usb_remove(struct platform_device *pdev)
         /* disable complete OTG block */
         twl4030_usb_clear_bits(twl, POWER_CTRL, POWER_CTRL_OTG_ENAB);
 
-        twl4030_phy_power(twl, 0);
+        if (!twl->asleep)
+                twl4030_phy_power(twl, 0);
         regulator_put(twl->usb1v5);
         regulator_put(twl->usb1v8);
         regulator_put(twl->usb3v1);