On Wed, May 14, 2014 at 04:02:34AM +0100, James Ban wrote: > This is the driver for the Dialog DA9211 Multi-phase 12A DC-DC Buck > Converter regulator. It communicates via an I2C bus to the device.
This looks a lot like the DA9210 driver, is there really no opportunity
for code sharing here?
> + /*
> + * There are two voltage register set A & B for voltage ramping but
> + * either one of then can be active therefore we first determine
> + * the active register set.
> + */
I see this but...
> + /* Select register set B for suspend voltage ramping. */
> + if (regulator->reg_rselect == DA9211_RSEL_NO_GPIO) {
> + ret = regmap_update_bits(chip->regmap, info->conf.reg,
> + info->conf.sel_mask,
> + DA9211_VBUCKA_SEL_B);
> + if (ret < 0)
> + return ret;
> + }
..this fairly clearly says that suspend mode is set B and normal mode is
set A.
> +static int da9211_suspend_enable(struct regulator_dev *rdev)
> +{
> + struct da9211_regulator *regulator = rdev_get_drvdata(rdev);
> + struct da9211_regulator_info *info = regulator->info;
> + struct da9211 *chip = regulator->da9211;
> +
> + /* Select register set B for voltage ramping. */
> + if (regulator->reg_rselect == DA9211_RSEL_NO_GPIO)
> + return regmap_update_bits(chip->regmap, info->conf.reg,
> + info->conf.sel_mask,
> + DA9211_VBUCKA_SEL_B);
> + else
> + return 0;
> +}
This looks like it will immediately shift to the suspend voltage but
what this should do is set the voltage which will be set in suspend
mode - something else (usually a hardware signal during suspend) should
actually enter it.
> +int da9211_enable_irq(struct da9211 *chip, int irq)
> +{
> + enable_irq(irq);
> +
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(da9211_enable_irq);
> +int da9211_disable_irq(struct da9211 *chip, int irq)
> +int da9211_mask_irq(struct da9211 *chip, int irq)
> +int da9211_unmask_irq(struct da9211 *chip, int irq)
This looks bad... similarly most of the rest of the interrupt code.
What is it supposed to be doing?
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