linux-toradex.git/Documentation/ABI/testing/sysfs-class-regulator, branch Rel3 Linux kernel for Apalis and Colibri modules regulator: add get_status() 2009-03-31T08:56:20+00:00 David Brownell dbrownell@users.sourceforge.net 2009-01-15T07:03:17+00:00 853116a10544206b6b2cf42ebc9d78fba2668888 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> 
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>
regulator: sysfs attribute reduction (v2) 2009-01-08T20:10:30+00:00 David Brownell dbrownell@users.sourceforge.net 2008-11-12T01:39:02+00:00 7ad68e2f970fd84d15ad67ce3216aed05f944a9c Clean up the sysfs interface to regulators by only exposing the attributes that can be properly displayed. For example: when a particular regulator method is needed to display the value, only create that attribute when that method exists. This cleaned-up interface is much more comprehensible. Most regulators only support a subset of the possible methods, so often more than half the attributes would be meaningless. Many "not defined" values are no longer necessary. (But handling of out-of-range values still looks a bit iffy.) Documentation is updated to reflect that few of the attributes are *always* present, and to briefly explain why a regulator may not have a given attribute. This adds object code, about a dozen bytes more than was removed by the preceding patch, but saves a bunch of per-regulator data associated with the now-removed attributes. So there's a net reduction in memory footprint. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> 
Clean up the sysfs interface to regulators by only exposing the
attributes that can be properly displayed.  For example: when a
particular regulator method is needed to display the value, only
create that attribute when that method exists.

This cleaned-up interface is much more comprehensible.  Most
regulators only support a subset of the possible methods, so
often more than half the attributes would be meaningless.  Many
"not defined" values are no longer necessary.  (But handling
of out-of-range values still looks a bit iffy.)

Documentation is updated to reflect that few of the attributes
are *always* present, and to briefly explain why a regulator may
not have a given attribute.

This adds object code, about a dozen bytes more than was removed
by the preceding patch, but saves a bunch of per-regulator data
associated with the now-removed attributes.  So there's a net
reduction in memory footprint.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: Export regulator name via sysfs 2008-10-13T20:51:53+00:00 Mark Brown broonie@opensource.wolfsonmicro.com 2008-10-10T14:33:20+00:00 bc558a60b58f638ee0188affb627d4894a97b1c7 Provide a new file 'name' in the regulator sysfs class with a human readable name for the regulator for use in applications. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> 
Provide a new file 'name' in the regulator sysfs class with a human
readable name for the regulator for use in applications.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: update email address for Liam Girdwood 2008-10-13T20:51:52+00:00 Liam Girdwood lrg@slimlogic.co.uk 2008-09-14T16:40:21+00:00 8a62ab4c4eaf5bce4d9cc84b77d6402c4742d9ab Additionally added another web resource for voltage regulators. Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk> 
Additionally added another web resource for voltage regulators.

Signed-off-by: Liam Girdwood <lrg@slimlogic.co.uk>
regulator: documentation - ABI 2008-07-30T09:10:22+00:00 Liam Girdwood lg@opensource.wolfsonmicro.com 2008-04-30T16:23:59+00:00 e941d0ce532daf8d8610b2495c06f787fd587b85 This adds documentation describing the sysfs ABI used by the regulator framework. Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com> 
This adds documentation describing the sysfs ABI used by the regulator
framework.

Signed-off-by: Liam Girdwood <lg@opensource.wolfsonmicro.com>