linux-kernel - Re: [PATCH v2 17/17] power: axp20x

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Message-ID: <20220609211226.5y7scqlfsxvfd3ag@mercury.elektranox.org>
Date:   Thu, 9 Jun 2022 23:12:26 +0200
From:   Sebastian Reichel <sebastian.reichel@...labora.com>
To:     Aidan MacDonald <aidanmacdonald.0x0@...il.com>
Cc:     linus.walleij@...aro.org, brgl@...ev.pl, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, wens@...e.org, jic23@...nel.org,
        lee.jones@...aro.org, broonie@...nel.org,
        gregkh@...uxfoundation.org, lgirdwood@...il.com, lars@...afoo.de,
        rafael@...nel.org, quic_gurus@...cinc.com,
        linux-gpio@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        linux-pm@...r.kernel.org
Subject: Re: [PATCH v2 17/17] power: axp20x_battery: Add support for AXP192

Hi,

On Tue, Jun 07, 2022 at 04:53:24PM +0100, Aidan MacDonald 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.
> 
> Signed-off-by: Aidan MacDonald <aidanmacdonald.0x0@...il.com>
> ---

Acked-by: Sebastian Reichel <sebastian.reichel@...labora.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 e9547e2d7c48..3fa2faa6f0f8 100644
> --- a/drivers/power/supply/axp20x_battery.c
> +++ b/drivers/power/supply/axp20x_battery.c
> @@ -538,6 +538,19 @@ 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,
> @@ -562,6 +575,16 @@ 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,
> @@ -572,6 +595,19 @@ 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,
> @@ -600,6 +636,9 @@ 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,
>  	}, {
> @@ -617,6 +656,7 @@ 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))
> @@ -660,9 +700,12 @@ 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
> 

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