Subject: "usb: gadget: pch_udc: Detecting VBUS through GPIO with interrupt" breaks sparc

From: Paul Gortmaker <[email-masked]>
Date: Fri, 2 Mar 2012 17:01:16 -0500

This commit:

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commit 637b78eb31e0b167ed913f1750bb645dfeda38f0
Author: Tomoya MORINAGA <[email-masked]>
Date:   Fri Feb 3 16:14:18 2012 +0900

    usb: gadget: pch_udc: Detecting VBUS through GPIO with interrupt
    
    Problem:
     pch_udc continues operation even if VBUS becomes Low.
     pch_udc performs D+ pulling up before VBUS becomes High.
     USB device should be controlled according to VBUS state.
    
    Root cause:
     The current pch_udc is not always monitoring VBUS.
    
    Solution:
     The change of VBUS is detected using an interrupt of GPIO.
     If VBUS became Low, pch_udc handles 'disconnect'.
     After VBUS became High, a pull improves D+, and pch_udc
     handles 'connect'.
    
    [ [email-masked] : make it actually compile ]
    
    Signed-off-by: Tomoya MORINAGA <[email-masked]>
    Signed-off-by: Felipe Balbi <[email-masked]>
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breaks the sparc builds in next:

http://kisskb.ellerman.id.au/kisskb/buildresult/5771890/
http://kisskb.ellerman.id.au/kisskb/buildresult/5771905/

Thanks,
Paul.