lowRISC / lowRISC/opentitan

[sensor_ctrl,dif] Add setters/getters for input disable on manual pads and related REGWENs

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IP:sensor_ctrl SW:DIF
Dominant language
SystemVerilog
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Description

Input disable for manual pads has been added to sensor_ctrl in #23107. Now DIF functions need to be added to use that feature. ROM_EXT or later boot stages might want to disable the input of specific pads and/or lock the related REGWENs.

Contributor guide

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First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start at the sensor_ctrl DIF entry points and review the input-disable and related REGWEN support added in #23107. Add DIF setters and getters for disabling inputs on manual pads and for locking the related REGWENs, covering the ROM_EXT or later boot-stage use case.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot
Issue type
Feature
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
42/100

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