Hi Quentin, On Wed, Feb 28, 2018 at 11:35:58AM +0100, Quentin Schulz wrote: > We used to use IDs to select a function or a feature depending on the > variant. It's easier to maintain the code by adding data structure > storing the few differences between variants so that we don't add a pile > of if conditions. > > Let's use this data structure and update the code to use it. > > Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxx> > Reviewed-by: Chen-Yu Tsai <wens@xxxxxxxx> > --- I applied this, but modified the patch slightly, so that it actually calls your new set_max_voltage() callback in axp20x_battery_set_prop(). Please check that the resulting patch looks correct to you: https://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply.git/commit/?h=for-next&id=648badd797c762a713b48afc3b67d56abdd0073b -- Sebastian > drivers/power/supply/axp20x_battery.c | 100 +++++++++++++++++---------- > 1 file changed, 66 insertions(+), 34 deletions(-) > > diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c > index 7494f0f..04a0d91 100644 > --- a/drivers/power/supply/axp20x_battery.c > +++ b/drivers/power/supply/axp20x_battery.c > @@ -53,6 +53,16 @@ > > #define AXP20X_V_OFF_MASK GENMASK(2, 0) > > +struct axp20x_batt_ps; > + > +struct axp_data { > + int ccc_scale; > + int ccc_offset; > + bool has_fg_valid; > + int (*get_max_voltage)(struct axp20x_batt_ps *batt, int *val); > + int (*set_max_voltage)(struct axp20x_batt_ps *batt, int val); > +}; > + > struct axp20x_batt_ps { > struct regmap *regmap; > struct power_supply *batt; > @@ -62,7 +72,7 @@ struct axp20x_batt_ps { > struct iio_channel *batt_v; > /* Maximum constant charge current */ > unsigned int max_ccc; > - u8 axp_id; > + const struct axp_data *data; > }; > > static int axp20x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, > @@ -123,22 +133,6 @@ static int axp22x_battery_get_max_voltage(struct axp20x_batt_ps *axp20x_batt, > return 0; > } > > -static void raw_to_constant_charge_current(struct axp20x_batt_ps *axp, int *val) > -{ > - if (axp->axp_id == AXP209_ID) > - *val = *val * 100000 + 300000; > - else > - *val = *val * 150000 + 300000; > -} > - > -static void constant_charge_current_to_raw(struct axp20x_batt_ps *axp, int *val) > -{ > - if (axp->axp_id == AXP209_ID) > - *val = (*val - 300000) / 100000; > - else > - *val = (*val - 300000) / 150000; > -} > - > static int axp20x_get_constant_charge_current(struct axp20x_batt_ps *axp, > int *val) > { > @@ -150,7 +144,7 @@ static int axp20x_get_constant_charge_current(struct axp20x_batt_ps *axp, > > *val &= AXP20X_CHRG_CTRL1_TGT_CURR; > > - raw_to_constant_charge_current(axp, val); > + *val = *val * axp->data->ccc_scale + axp->data->ccc_offset; > > return 0; > } > @@ -269,8 +263,7 @@ static int axp20x_battery_get_prop(struct power_supply *psy, > if (ret) > return ret; > > - if (axp20x_batt->axp_id == AXP221_ID && > - !(reg & AXP22X_FG_VALID)) > + if (axp20x_batt->data->has_fg_valid && !(reg & AXP22X_FG_VALID)) > return -EINVAL; > > /* > @@ -281,11 +274,8 @@ static int axp20x_battery_get_prop(struct power_supply *psy, > break; > > case POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN: > - if (axp20x_batt->axp_id == AXP209_ID) > - return axp20x_battery_get_max_voltage(axp20x_batt, > - &val->intval); > - return axp22x_battery_get_max_voltage(axp20x_batt, > - &val->intval); > + return axp20x_batt->data->get_max_voltage(axp20x_batt, > + &val->intval); > > case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: > ret = regmap_read(axp20x_batt->regmap, AXP20X_V_OFF, ®); > @@ -312,6 +302,32 @@ static int axp20x_battery_get_prop(struct power_supply *psy, > return 0; > } > > +static int axp22x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, > + int val) > +{ > + switch (val) { > + case 4100000: > + val = AXP20X_CHRG_CTRL1_TGT_4_1V; > + break; > + > + case 4200000: > + val = AXP20X_CHRG_CTRL1_TGT_4_2V; > + break; > + > + default: > + /* > + * AXP20x max voltage can be set to 4.36V and AXP22X max voltage > + * can be set to 4.22V and 4.24V, but these voltages are too > + * high for Lithium based batteries (AXP PMICs are supposed to > + * be used with these kinds of battery). > + */ > + return -EINVAL; > + } > + > + return regmap_update_bits(axp20x_batt->regmap, AXP20X_CHRG_CTRL1, > + AXP20X_CHRG_CTRL1_TGT_VOLT, val); > +} > + > static int axp20x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, > int val) > { > @@ -321,9 +337,6 @@ static int axp20x_battery_set_max_voltage(struct axp20x_batt_ps *axp20x_batt, > break; > > case 4150000: > - if (axp20x_batt->axp_id == AXP221_ID) > - return -EINVAL; > - > val = AXP20X_CHRG_CTRL1_TGT_4_15V; > break; > > @@ -351,7 +364,8 @@ static int axp20x_set_constant_charge_current(struct axp20x_batt_ps *axp_batt, > if (charge_current > axp_batt->max_ccc) > return -EINVAL; > > - constant_charge_current_to_raw(axp_batt, &charge_current); > + charge_current = (charge_current - axp_batt->data->ccc_offset) / > + axp_batt->data->ccc_scale; > > if (charge_current > AXP20X_CHRG_CTRL1_TGT_CURR || charge_current < 0) > return -EINVAL; > @@ -365,12 +379,14 @@ static int axp20x_set_max_constant_charge_current(struct axp20x_batt_ps *axp, > { > bool lower_max = false; > > - constant_charge_current_to_raw(axp, &charge_current); > + charge_current = (charge_current - axp->data->ccc_offset) / > + axp->data->ccc_scale; > > if (charge_current > AXP20X_CHRG_CTRL1_TGT_CURR || charge_current < 0) > return -EINVAL; > > - raw_to_constant_charge_current(axp, &charge_current); > + charge_current = charge_current * axp->data->ccc_scale + > + axp->data->ccc_offset; > > if (charge_current > axp->max_ccc) > dev_warn(axp->dev, > @@ -460,13 +476,28 @@ static const struct power_supply_desc axp20x_batt_ps_desc = { > .set_property = axp20x_battery_set_prop, > }; > > +static const struct axp_data axp209_data = { > + .ccc_scale = 100000, > + .ccc_offset = 300000, > + .get_max_voltage = axp20x_battery_get_max_voltage, > + .set_max_voltage = axp20x_battery_set_max_voltage, > +}; > + > +static const struct axp_data axp221_data = { > + .ccc_scale = 150000, > + .ccc_offset = 300000, > + .has_fg_valid = true, > + .get_max_voltage = axp22x_battery_get_max_voltage, > + .set_max_voltage = axp22x_battery_set_max_voltage, > +}; > + > static const struct of_device_id axp20x_battery_ps_id[] = { > { > .compatible = "x-powers,axp209-battery-power-supply", > - .data = (void *)AXP209_ID, > + .data = (void *)&axp209_data, > }, { > .compatible = "x-powers,axp221-battery-power-supply", > - .data = (void *)AXP221_ID, > + .data = (void *)&axp221_data, > }, { /* sentinel */ }, > }; > MODULE_DEVICE_TABLE(of, axp20x_battery_ps_id); > @@ -476,6 +507,7 @@ static int axp20x_power_probe(struct platform_device *pdev) > struct axp20x_batt_ps *axp20x_batt; > struct power_supply_config psy_cfg = {}; > struct power_supply_battery_info info; > + struct device *dev = &pdev->dev; > > if (!of_device_is_available(pdev->dev.of_node)) > return -ENODEV; > @@ -516,7 +548,7 @@ static int axp20x_power_probe(struct platform_device *pdev) > psy_cfg.drv_data = axp20x_batt; > psy_cfg.of_node = pdev->dev.of_node; > > - axp20x_batt->axp_id = (uintptr_t)of_device_get_match_data(&pdev->dev); > + axp20x_batt->data = (struct axp_data *)of_device_get_match_data(dev); > > axp20x_batt->batt = devm_power_supply_register(&pdev->dev, > &axp20x_batt_ps_desc, > -- > git-series 0.9.1
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