[v4,15/15] power: axp20x_battery: Add support for AXP192

The AXP192 has a battery charger similar to other X-Powers PMICs,
but unlike the other supported devices, it does not have a fuel
gauge and can't report battery capacity directly.

Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
---
 drivers/power/supply/axp20x_battery.c | 49 +++++++++++++++++++++++++--
 1 file changed, 46 insertions(+), 3 deletions(-)

On Wed, Jun 29, 2022 at 4:30 PM Aidan MacDonald
<aidanmacdonald.0x0@gmail.com> wrote:
>
> The AXP192 has a battery charger similar to other X-Powers PMICs,
> but unlike the other supported devices, it does not have a fuel
> gauge and can't report battery capacity directly.

Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>

> Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com>
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@gmail.com>
> ---
>  drivers/power/supply/axp20x_battery.c | 49 +++++++++++++++++++++++++--
>  1 file changed, 46 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/power/supply/axp20x_battery.c b/drivers/power/supply/axp20x_battery.c
> index 574c1d001556..1e84d26ce8e3 100644
> --- a/drivers/power/supply/axp20x_battery.c
> +++ b/drivers/power/supply/axp20x_battery.c
> @@ -544,6 +544,19 @@ static int axp20x_battery_set_prop(struct power_supply *psy,
>         }
>  }
>
> +static enum power_supply_property axp192_battery_props[] = {
> +       POWER_SUPPLY_PROP_PRESENT,
> +       POWER_SUPPLY_PROP_ONLINE,
> +       POWER_SUPPLY_PROP_STATUS,
> +       POWER_SUPPLY_PROP_VOLTAGE_NOW,
> +       POWER_SUPPLY_PROP_CURRENT_NOW,
> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT,
> +       POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX,
> +       POWER_SUPPLY_PROP_HEALTH,
> +       POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
> +       POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
> +};
> +
>  static enum power_supply_property axp20x_battery_props[] = {
>         POWER_SUPPLY_PROP_PRESENT,
>         POWER_SUPPLY_PROP_ONLINE,
> @@ -568,6 +581,16 @@ static int axp20x_battery_prop_writeable(struct power_supply *psy,
>                psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX;
>  }
>
> +static const struct power_supply_desc axp192_batt_ps_desc = {
> +       .name = "axp192-battery",
> +       .type = POWER_SUPPLY_TYPE_BATTERY,
> +       .properties = axp192_battery_props,
> +       .num_properties = ARRAY_SIZE(axp192_battery_props),
> +       .property_is_writeable = axp20x_battery_prop_writeable,
> +       .get_property = axp20x_battery_get_prop,
> +       .set_property = axp20x_battery_set_prop,
> +};
> +
>  static const struct power_supply_desc axp20x_batt_ps_desc = {
>         .name = "axp20x-battery",
>         .type = POWER_SUPPLY_TYPE_BATTERY,
> @@ -578,6 +601,19 @@ static const struct power_supply_desc axp20x_batt_ps_desc = {
>         .set_property = axp20x_battery_set_prop,
>  };
>
> +static const int axp192_ccc_table[AXP20X_CHRG_CTRL1_TGT_CURR+1] = {
> +       100000,  190000,  280000,  360000,
> +       450000,  550000,  630000,  700000,
> +       780000,  880000,  960000,  1000000,
> +       1080000, 1160000, 1240000, 1320000,
> +};
> +
> +static const struct axp_data axp192_data = {
> +       .ccc_table = axp192_ccc_table,
> +       .get_max_voltage = axp20x_battery_get_max_voltage,
> +       .set_max_voltage = axp20x_battery_set_max_voltage,
> +};
> +
>  static const struct axp_data axp209_data = {
>         .ccc_scale = 100000,
>         .ccc_offset = 300000,
> @@ -606,6 +642,9 @@ static const struct axp_data axp813_data = {
>
>  static const struct of_device_id axp20x_battery_ps_id[] = {
>         {
> +               .compatible = "x-powers,axp192-battery-power-supply",
> +               .data = (void *)&axp192_data,
> +       }, {
>                 .compatible = "x-powers,axp209-battery-power-supply",
>                 .data = (void *)&axp209_data,
>         }, {
> @@ -623,6 +662,7 @@ 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;
> +       const struct power_supply_desc *ps_desc;
>         struct device *dev = &pdev->dev;
>
>         if (!of_device_is_available(pdev->dev.of_node))
> @@ -666,9 +706,12 @@ static int axp20x_power_probe(struct platform_device *pdev)
>
>         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,
> -                                                      &psy_cfg);
> +       if (!axp20x_batt->data->has_fg)
> +               ps_desc = &axp192_batt_ps_desc;
> +       else
> +               ps_desc = &axp20x_batt_ps_desc;
> +
> +       axp20x_batt->batt = devm_power_supply_register(&pdev->dev, ps_desc, &psy_cfg);
>         if (IS_ERR(axp20x_batt->batt)) {
>                 dev_err(&pdev->dev, "failed to register power supply: %ld\n",
>                         PTR_ERR(axp20x_batt->batt));
> --
> 2.35.1
>