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regulator: add get_status()

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From: Linux Kernel Mailing List
Subject: regulator: add get_status()
Date: Friday, April 3, 2009 - 11:11 am

Gitweb:     http://git.kernel.org/linus/853116a10544206b6b2cf42ebc9d78fba2668888
Commit:     853116a10544206b6b2cf42ebc9d78fba2668888
Parent:     93e14baa4494607efe81608725f591e3ba31e3c1
Author:     David Brownell <dbrownell@users.sourceforge.net>
AuthorDate: Wed Jan 14 23:03:17 2009 -0800
Committer:  Liam Girdwood <lrg@slimlogic.co.uk>
CommitDate: Tue Mar 31 09:56:20 2009 +0100

    regulator: add get_status()
    
    Based on previous LKML discussions:
    
     * Update docs for regulator sysfs class attributes to highlight
       the fact that all current attributes are intended to be control
       inputs, including notably "state" and "opmode" which previously
       implied otherwise.
    
     * Define a new regulator driver get_status() method, which is the
       first method reporting regulator outputs instead of inputs.
       It can report on/off and error status; or instead of simply
       "on", report the actual operating mode.
    
    For the moment, this is a sysfs-only interface, not accessible to
    regulator clients.  Such clients can use the current notification
    interfaces to detect errors, if the regulator reports them.
    
    Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
    Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
---
 Documentation/ABI/testing/sysfs-class-regulator |   57 +++++++++++++++++++----
 drivers/regulator/core.c                        |   46 ++++++++++++++++++
 include/linux/regulator/driver.h                |   17 +++++++
 3 files changed, 111 insertions(+), 9 deletions(-)

diff --git a/Documentation/ABI/testing/sysfs-class-regulator b/Documentation/ABI/testing/sysfs-class-regulator
index 873ef1f..e091fa8 100644
--- a/Documentation/ABI/testing/sysfs-class-regulator
+++ b/Documentation/ABI/testing/sysfs-class-regulator
@@ -4,8 +4,8 @@ KernelVersion:	2.6.26
 Contact:	Liam Girdwood <lrg@slimlogic.co.uk>
 Description:
 		Some regulator directories will contain a field called
-		state. This reports ...
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