1 Regulator API design notes
2 ==========================
4 This document provides a brief, partially structured, overview of some
5 of the design considerations which impact the regulator API design.
10 - Errors in regulator configuration can have very serious consequences
11 for the system, potentially including lasting hardware damage.
12 - It is not possible to automatically determine the power configuration
13 of the system - software-equivalent variants of the same chip may
14 have different power requirements, and not all components with power
15 requirements are visible to software.
17 => The API should make no changes to the hardware state unless it has
18 specific knowledge that these changes are safe to perform on this
24 - The overwhelming majority of devices in a system will have no
25 requirement to do any runtime configuration of their power beyond
26 being able to turn it on or off.
28 - Many of the power supplies in the system will be shared between many
31 => The consumer API should be structured so that these use cases are
32 very easy to handle and so that consumers will work with shared
33 supplies without any additional effort.