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From: Kyle Evans <kevans@FreeBSD.org>
Date: Fri, 17 Aug 2018 04:11:10 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r337955 - stable/11
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Author: kevans
Date: Fri Aug 17 04:11:10 2018
New Revision: 337955
URL: https://svnweb.freebsd.org/changeset/base/337955

Log:
  MFC r335173, r335195
  
  r335173:
  extres/regulator: Properly refcount gpio regulators
  
  regnode::enable_cnt is generally used to refcount regulator nodes. For
  GPIOs, the refcount was done on the gpio_entry since more than one regulator
  can share a GPIO.
  
  GPIO regulators were not taking part in the node refcount, since they had
  their own mechanism. This caused some fallout after manu started disabling
  everybody's unused regulators in r331989.
  
  Refcount it.
  
  r335195:
  Revert r335173 at request of mmel@
  
  This was the wrong solution to the problem; regulator_shutdown invokes
  regnode_stop. regulator_stop is not a refcounting method, but it invokes
  regnode_enable, which is.
  
  mmel@ has a proposed patch/solution to instead provide regnode_fixed_stop
  behavior that properly takes shared GPIO pins into account.

Modified:
Directory Properties:
  stable/11/   (props changed)