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    SubjectRe: [PATCH 3/4] power_supply/MFD: twl4030_charger: Allow charger to control the regulator that feeds it.
    Hi Neil,

    On Wed, May 09, 2012 at 07:40:40AM +1000, NeilBrown wrote:
    > @@ -183,6 +186,12 @@ static int twl4030_charger_enable_usb(struct twl4030_bci *bci, bool enable)
    > return -EACCES;
    > }
    >
    > + /* Need to keep regulator on */
    > + if (!bci->usb_enabled) {
    > + regulator_enable(bci->usb_reg);

    Should you consider here a failure case?

    > + bci->usb_enabled = 1;
    > + }
    > +
    > /* forcing the field BCIAUTOUSB (BOOT_BCI[1]) to 1 */
    > ret = twl4030_clear_set_boot_bci(0, TWL4030_BCIAUTOUSB);
    > if (ret < 0)
    > @@ -511,6 +524,8 @@ static int __init twl4030_bci_probe(struct platform_device *pdev)
    > bci->usb.num_properties = ARRAY_SIZE(twl4030_charger_props);
    > bci->usb.get_property = twl4030_bci_get_property;
    >
    > + bci->usb_reg = regulator_get(bci->dev, "bci3v1");

    ... and here.

    Andi


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