Claude review: drm/bridge: convert users of of_drm_find_bridge(), part 4

[Claude Code Review Bot <claude-review@example.com>]

Overall Series Review

Subject: drm/bridge: convert users of of_drm_find_bridge(), part 4
Author: Luca Ceresoli <luca.ceresoli@bootlin.com>
Patches: 3
Reviewed: 2026-04-12T11:12:49.754762

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This is a clean, well-structured 2-patch series converting the two Renesas DU encoder drivers (`rz-du` and `rcar-du`) from the deprecated `of_drm_find_bridge()` to `of_drm_find_and_get_bridge()`, as part of the ongoing DRM bridge refcounting work. The series is at v5 and has already collected Reviewed-by tags from four reviewers (Biju Das, Linus Walleij, Laurent Pinchart, Louis Chauvet).

The approach is sound: use `__free(drm_bridge_put)` on the local `bridge` variable for automatic cleanup, take an extra reference via `drm_bridge_get()` in the panel-bridge path to unify the two branches, and use `no_free_ptr()` to suppress cleanup for error pointers. The v5 simplification with `no_free_ptr` is a nice improvement over explicit goto-based cleanup.

Both patches are correct. The refcounting logic is balanced across all paths. No issues found that would block merging.

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