Claude review: drm/panel: ilitek-ili9882t: Fine-tune HFP for tianma, tl121bvms07-00

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

Overall Series Review

Subject: drm/panel: ilitek-ili9882t: Fine-tune HFP for tianma,
 tl121bvms07-00
Author: Langyan Ye <yelangyan@huaqin.corp-partner.google.com>
Patches: 1
Reviewed: 2026-02-11T17:10:16.964206

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This is a single-patch series that addresses a display panel timing issue for the Tianma TL121BVMS07-00 panel in the ilitek-ili9882t panel driver. The patch modifies the horizontal front porch (HFP) timing to correct a refresh rate discrepancy that was causing stylus malfunction.

**Summary Assessment:**
- **Purpose**: Clear and well-defined - fixes refresh rate from 120.4Hz to 120Hz for stylus compatibility
- **Scope**: Minimal and focused - only touches the affected timing parameters
- **Correctness**: The math appears sound, but there are some review concerns
- **Testing**: Implied hardware testing (measured refresh rate), but not explicitly documented

**Key Concerns:**
1. Lack of detailed justification for the specific HFP value chosen
2. No explanation of why this timing change is safe/correct per panel datasheet
3. Missing information about testing methodology and devices tested
4. Potential impact on other display characteristics not addressed

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