type-c-service/tps6699x: Fix EPR capable flag not being set

[RobertZ2011]

This flag was not being set properly. Also add two more useful fields to PortStatus.

[Copilot]

Pull request overview

This PR fixes PortStatus.epr not being populated when using the TPS6699x Type‑C/PD controller driver, by extracting the EPR-capable bit from the partner’s first received Source PDO (the 5V fixed SPR PDO). It also updates the PortStatus field documentation to describe epr as “port partner is EPR capable”. The intent is to make the EPR capability visible to higher layers that consume PortStatus.

Changes:

• Parse the first received Source PDO as a fixed PDO and use its flags to populate dual_power, unconstrained_power, and the newly-set epr field.
• Update PortStatus.epr doc comment to reflect “port partner is EPR capable”.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
type-c-service/src/driver/tps6699x.rs	Sets PortStatus.epr (and refactors related flag extraction) based on the first received fixed Source PDO.
embedded-service/src/type_c/controller.rs	Updates the documentation describing what PortStatus.epr represents.

[asasine]

The whole PDO would avoid ambiguity with what each field refers to, and would save us from needing to revisit this again for yet-another-field.

[Copilot]

Pull request overview

Copilot reviewed 8 out of 8 changed files in this pull request and generated no new comments.

Suppressed comments (2)

type-c-service/src/driver/tps6699x.rs:358

• Error message is incorrect for the sink-capabilities read path: this branch calls get_rx_snk_caps and validates sink_pdos, but logs "no source PDOs found". This makes debugging confusing when a partner reports no sink PDOs.

                        error!("Port{} no source PDOs found", port.0);

embedded-service/src/type_c/controller.rs:99

• Doc comment for PdSinkInfo.rdo says "PDO" but the field is an RDO (pdo::Rdo). This is misleading for users trying to understand what the struct contains.

    /// PDO associated with this contract

[RobertZ2011]

Updated the available contract data structures to contain full PD information when available. This includes:

• PDO and RDO for the negotiated contract
• Flags from fixed 5V PDO, these apply to all PDOs but they're only set in this PDO.