fix(gdeq031t10): reset the panel at the start of a full init

[Crazypedia]

Fixes #602.

The kernel-driver port in #582 dropped the reset pulse that the pre-migration driver issued at the top of its full init:

bool Gdeq031t10Display::initFull() {
    reset();
    bool ok = writeCommand(CMD_PANEL_SETTING);
    ...

hardware_reset() survived the port but is only reachable from the reset() display op, which nothing calls on the start path. Without the pulse a cold-booted controller never drives BUSY ready after CMD_POWER_ON, so display fails to start, and since a failed device start aborts kernel_init, the LilyGO T-Deck Max does not boot at all on current main.

Two comments in the driver already assume the pulse is still there, so this also restores deep-sleep wake and the register-default reset that a waveform-mode change relies on:

• gdeq031t10_disp_on_off(): "Toggling RST (in init_full) also wakes the panel from deep sleep."
• A mode change needs partial mode's lingering VCOM/data-interval setting cleared, which was the original reason reset() lived in initFull() rather than at construction.

Verification

Hardware, LilyGO T-Deck Max. Before:

I (1566) device: start display
E (6571) GDEQ031T10: Timed out waiting for panel BUSY
E (6571) GDEQ031T10: Full init failed
E (6573) kernel: kernel_init failed to construct+add+start device: display (gooddisplay,gdeq031t10)
E (6582) Tactility: Failed to initialize kernel

After:

I (1566) device: start display
I (1631) GDEQ031T10: waited 42 ms until not busy
I (1631) driver: bound gdeq031t10 to display
I (1631) kernel: init done

Boot completes, the SD card mounts, and refreshes run normally (draw_bitmap: refresh_full, waited 1014 ms until not busy).

Summary by CodeRabbit

• Bug Fixes
  • Improved device initialization by resetting hardware before the full startup sequence.
  • Ensured reliable recovery from deep sleep and cleared lingering settings from partial operation.

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: a087ed9c-bf69-4c33-a5b7-0ff240c18d8e

📥 Commits

Reviewing files that changed from the base of the PR and between f13c18f and 0444212.

📒 Files selected for processing (1)

• Drivers/gdeq031t10-module/source/gdeq031t10.cpp

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📝 Walkthrough

Walkthrough

init_full() now begins by calling hardware_reset(internal) before executing the GDEQ031T10 panel initialization sequence. Comments document that the reset restores controller register defaults, clears lingering partial-mode settings, and supports waking the panel from deep sleep.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly summarizes the main change: restoring the panel reset at the start of full initialization.
Linked Issues check	✅ Passed	The change matches issue #602 by adding hardware_reset() at the start of init_full(), restoring boot, wake, and waveform-mode behavior.
Out of Scope Changes check	✅ Passed	The PR appears scoped to the reset fix and only adds brief comments, with no unrelated code changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[KenVanHoeylandt]

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