/* 3. Disable Retention Logic (Latch data back to active registers) */ val = readl(base + MT1887_SCP_PWR_CTRL); val &= ~SCP_RETENTION_BIT; writel(val, base + MT1887_SCP_PWR_CTRL);

If your device is not appearing or functioning correctly, follow these steps: MT1887 | External, Rewritable DVD Drives - MediaTek

Open your computer’s Device Manager. Look under "Other devices" or "Unknown devices." Right-click the problematic device, go to Properties > Details > Hardware Ids. If you see VEN_1887 or DEV_1887 , you have found the MT1887 chip.

The driver may offer functionalities to manage the device, such as configuring settings, updating firmware, diagnosing connection issues, and monitoring performance metrics.

drivers/soc/mediatek/mt1887-pm.c (Hypothetical)