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

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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>
This commit is contained in:
Jarkko Nikula 2010-11-30 17:58:25 +02:00 committed by Greg Kroah-Hartman
parent 02303f7337
commit c3d6450e74
1 changed files with 2 additions and 1 deletions
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3
drivers/usb/otg/twl4030-usb.c
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@ -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);