linux/Documentation/power/regulator/design.rst
Mauro Carvalho Chehab 151f4e2bdc docs: power: convert docs to ReST and rename to *.rst
Convert the PM documents to ReST, in order to allow them to
build with Sphinx.

The conversion is actually:
  - add blank lines and indentation in order to identify paragraphs;
  - fix tables markups;
  - add some lists markups;
  - mark literal blocks;
  - adjust title markups.

At its new index.rst, let's add a :orphan: while this is not linked to
the main index.rst file, in order to avoid build warnings.

Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Mark Brown <broonie@kernel.org>
Acked-by: Srivatsa S. Bhat (VMware) <srivatsa@csail.mit.edu>
2019-06-14 16:08:36 -05:00

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ReStructuredText

==========================
Regulator API design notes
==========================
This document provides a brief, partially structured, overview of some
of the design considerations which impact the regulator API design.
Safety
------
- Errors in regulator configuration can have very serious consequences
for the system, potentially including lasting hardware damage.
- It is not possible to automatically determine the power configuration
of the system - software-equivalent variants of the same chip may
have different power requirements, and not all components with power
requirements are visible to software.
.. note::
The API should make no changes to the hardware state unless it has
specific knowledge that these changes are safe to perform on this
particular system.
Consumer use cases
------------------
- The overwhelming majority of devices in a system will have no
requirement to do any runtime configuration of their power beyond
being able to turn it on or off.
- Many of the power supplies in the system will be shared between many
different consumers.
.. note::
The consumer API should be structured so that these use cases are
very easy to handle and so that consumers will work with shared
supplies without any additional effort.