Re: [PATCH v3 3/3] media: i2c: ov02c10: Use runtime PM autosuspend to avoid brownouts

[Bryan O'Donoghue <bod@kernel.org>]

On 27/01/2026 11:06, Bryan O'Donoghue wrote:
> So, SPMI is not exported in /sys/kernel/debug/regmap - however
> 
> drivers/regulator/qcom-rpmh-regulator.c
> 
> Lets add this to probe
> 
> unsigned int val, i;
>       u16 bases[] = {0x4000, 0x4300, 0x4600}; // LDO1, LDO4, LDO7
>       const char *names[] = {"LDO1(1.2V)", "LDO4(1.8V)", "LDO7(2.8V)"};
>       struct regmap *p_regmap = dev_get_regmap(dev->parent, NULL);
> 
>       if (p_regmap) {
>           pr_info("--- OV02C10 PMIC RAIL DUMP START ---\n");
>           for (i = 0; i < 3; i++) {
>               // Check Config (Active Discharge)
>               regmap_read(p_regmap, bases[i] + 0x41, &val);
>               pr_info("!!! %s SEC_CTRL (0x%04x) = 0x%02x (Bit7: Active
> Discharge)\n",
>                       names[i], bases[i] + 0x41, val);
> 
>               // Check Status (Is it actually on?)
>               regmap_read(p_regmap, bases[i] + 0x08, &val);
>               pr_info("!!! %s STATUS   (0x%04x) = 0x%02x (Bit7: VREG_OK,
> Bit0: VREG_ON)\n",
>                       names[i], bases[i] + 0x08, val);
> 
>               // Check Pull-down config (Secondary check)
>               regmap_read(p_regmap, bases[i] + 0x42, &val);
>               pr_info("!!! %s PD_CTRL   (0x%04x) = 0x%02x\n",
>                       names[i], bases[i] + 0x42, val);
>           }
>           pr_info("--- OV02C10 PMIC RAIL DUMP END ---\n");
>       }

Obviously only do this for PM8010 for the other RPMh which may not have 
this offset.

---
bod