Claude review: drm/panel: visionox-rm69299: Split DSI commands out into enable/disable

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

Patch Review

This is the substantive fix. The init sequence, `exit_sleep_mode`, `set_display_on` move from `prepare` to a new `enable` callback, and `set_display_off`, `enter_sleep_mode` move from `unprepare` to a new `disable` callback. The remaining `prepare`/`unprepare` become thin wrappers around `power_on`/`power_off`.

The code motion is faithful — no logic changes, same delays, same LPM flag manipulation. The fix is correct: DSI commands must be sent after the video pipeline is up (`enable`) and before it goes down (`disable`), not during power sequencing.

One minor style observation on the funcs struct:

```c
static const struct drm_panel_funcs visionox_rm69299_drm_funcs = {
	.unprepare = visionox_rm69299_unprepare,
	.disable   = visionox_rm69299_disable,
	.prepare   = visionox_rm69299_prepare,
	.enable	   = visionox_rm69299_enable,
	.get_modes = visionox_rm69299_get_modes,
};
```

The alignment with extra spaces (`.disable   =`, `.prepare   =`) is inconsistent with the rest of the file and not standard kernel style. Tabs-only alignment or no padding would be more conventional. Very minor.

No functional issues.

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Generated by Claude Code Patch Reviewer