On Wed, Jan 04, 2012 at 03:22:27PM +0530, AnilKumar Ch wrote:
This looks pretty good. A couple of small issues.
> +static int tps65217_vsel_to_uv_range1(unsigned int vsel)
> +{
> + int uV = 0;
> +
> + if (vsel > 15)
> + return -EINVAL;
> +
> + if (vsel <= 2)
> + uV = vsel * 100000 + 1000000;
> + else if (vsel <= 6)
> + uV = (vsel - 2) * 50000 + 1200000;
> + else if (vsel <= 9)
> + uV = (vsel - 6) * 100000 + 1400000;
> + else if (vsel == 10)
> + uV = 2500000;
> + else if (vsel == 11)
> + uV = 2750000;
> + else if (vsel == 12)
> + uV = 2800000;
> + else if (vsel == 13)
> + uV = 3000000;
> + else if (vsel == 14)
> + uV = 3100000;
> + else
> + uV = 3300000;
This looks like it should actually be a table - there's far too many
irregular steps here. The other regulators looked to be benefiting from
the use of calculations.
> +static int tps65217_pmic_dcdc_get_voltage(struct regulator_dev *dev)
> +{
> + int ret;
> + struct tps65217 *tps = rdev_get_drvdata(dev);
> + unsigned int data, dcdc = rdev_get_id(dev);
> +
> + if (dcdc < TPS65217_DCDC_1 || dcdc > TPS65217_DCDC_3)
> + return -EINVAL;
> +
> + ret = tps65217_reg_read(tps, tps->info[dcdc]->set_vout_reg, &data);
> + if (ret)
> + return ret;
> +
> + data &= tps->info[dcdc]->set_vout_mask;
> +
> + ret = tps->info[dcdc]->tps_range(data);
> + if (ret < 0)
> + dev_err(&dev->dev, "Failed to get voltage\n");
> +
> + return ret;
It seems odd to implement this as a vanilla get_voltage()
> +static int tps65217_pmic_dcdc_set_voltage(struct regulator_dev *dev,
> + unsigned selector)
> +{
but this as set_voltage_sel(). For non table based regulators plain
set_voltage() usually makes a bit more sense as we don't have to iterate
through the selectors looking for a match.
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