Claude review: drm/dp: Store coasting vtotal in struct drm_dp_as_sdp

Claude Code Review Bot
2026-04-12T02:51:25Z

Patch Review

Adds `coasting_vtotal` to `struct drm_dp_as_sdp` and logs it. The field is `int`, which is fine since vtotal values fit easily.

The log string uses a space between "coasting" and "vtotal":
```c
drm_printf(p, " coasting vtotal: %d\n", as_sdp->coasting_vtotal);
```
This is slightly inconsistent with other fields that use underscores (e.g., `target_rr`, `duration_incr_ms`). Minor style nit.

Missing R-b from Ville (unlike neighboring patches).