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power: supply: axp20x_battery: Make iio and battery config per device 

Move the configuration of battery specific information and available
iio channels from the probe function to a device specific routine,
allowing us to use this driver for devices with slightly different
configurations (such as the AXP717).

Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240821215456.962564-4-macroalpha82@gmail.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
pull/958/head
Chris Morgan 2024-08-21 16:54:44 -05:00 committed by Sebastian Reichel
parent 61978807b0
commit db97fecb55
1 changed files with 88 additions and 49 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

137
drivers/power/supply/axp20x_battery.c
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@ -58,11 +58,19 @@
struct axp20x_batt_ps;
struct axp_data {
int ccc_scale;
int ccc_offset;
bool has_fg_valid;
int ccc_scale;
int ccc_offset;
unsigned int ccc_reg;
unsigned int ccc_mask;
bool has_fg_valid;
const struct power_supply_desc *bat_ps_desc;
int (*get_max_voltage)(struct axp20x_batt_ps *batt, int *val);
int (*set_max_voltage)(struct axp20x_batt_ps *batt, int val);
int (*cfg_iio_chan)(struct platform_device *pdev,
struct axp20x_batt_ps *axp_batt);
void (*set_bat_info)(struct platform_device *pdev,
struct axp20x_batt_ps *axp_batt,
struct power_supply_battery_info *info);
};
struct axp20x_batt_ps {
@ -508,7 +516,7 @@ static int axp20x_battery_prop_writeable(struct power_supply *psy,
psp == POWER_SUPPLY_PROP_CONSTANT_CHARGE_CURRENT_MAX;
}
static const struct power_supply_desc axp20x_batt_ps_desc = {
static const struct power_supply_desc axp209_batt_ps_desc = {
.name = "axp20x-battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = axp20x_battery_props,
@ -518,27 +526,94 @@ static const struct power_supply_desc axp20x_batt_ps_desc = {
.set_property = axp20x_battery_set_prop,
};
static int axp209_bat_cfg_iio_channels(struct platform_device *pdev,
struct axp20x_batt_ps *axp_batt)
{
axp_batt->batt_v = devm_iio_channel_get(&pdev->dev, "batt_v");
if (IS_ERR(axp_batt->batt_v)) {
if (PTR_ERR(axp_batt->batt_v) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp_batt->batt_v);
}
axp_batt->batt_chrg_i = devm_iio_channel_get(&pdev->dev,
"batt_chrg_i");
if (IS_ERR(axp_batt->batt_chrg_i)) {
if (PTR_ERR(axp_batt->batt_chrg_i) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp_batt->batt_chrg_i);
}
axp_batt->batt_dischrg_i = devm_iio_channel_get(&pdev->dev,
"batt_dischrg_i");
if (IS_ERR(axp_batt->batt_dischrg_i)) {
if (PTR_ERR(axp_batt->batt_dischrg_i) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp_batt->batt_dischrg_i);
}
return 0;
}
static void axp209_set_battery_info(struct platform_device *pdev,
struct axp20x_batt_ps *axp_batt,
struct power_supply_battery_info *info)
{
int vmin = info->voltage_min_design_uv;
int ccc = info->constant_charge_current_max_ua;
if (vmin > 0 && axp20x_set_voltage_min_design(axp_batt, vmin))
dev_err(&pdev->dev,
"couldn't set voltage_min_design\n");
/* Set max to unverified value to be able to set CCC */
axp_batt->max_ccc = ccc;
if (ccc <= 0 || axp20x_set_constant_charge_current(axp_batt, ccc)) {
dev_err(&pdev->dev,
"couldn't set ccc from DT: fallback to min value\n");
ccc = 300000;
axp_batt->max_ccc = ccc;
axp20x_set_constant_charge_current(axp_batt, ccc);
}
}
static const struct axp_data axp209_data = {
.ccc_scale = 100000,
.ccc_offset = 300000,
.ccc_reg = AXP20X_CHRG_CTRL1,
.ccc_mask = AXP20X_CHRG_CTRL1_TGT_CURR,
.bat_ps_desc = &axp209_batt_ps_desc,
.get_max_voltage = axp20x_battery_get_max_voltage,
.set_max_voltage = axp20x_battery_set_max_voltage,
.cfg_iio_chan = axp209_bat_cfg_iio_channels,
.set_bat_info = axp209_set_battery_info,
};
static const struct axp_data axp221_data = {
.ccc_scale = 150000,
.ccc_offset = 300000,
.ccc_reg = AXP20X_CHRG_CTRL1,
.ccc_mask = AXP20X_CHRG_CTRL1_TGT_CURR,
.has_fg_valid = true,
.bat_ps_desc = &axp209_batt_ps_desc,
.get_max_voltage = axp22x_battery_get_max_voltage,
.set_max_voltage = axp22x_battery_set_max_voltage,
.cfg_iio_chan = axp209_bat_cfg_iio_channels,
.set_bat_info = axp209_set_battery_info,
};
static const struct axp_data axp813_data = {
.ccc_scale = 200000,
.ccc_offset = 200000,
.ccc_reg = AXP20X_CHRG_CTRL1,
.ccc_mask = AXP20X_CHRG_CTRL1_TGT_CURR,
.has_fg_valid = true,
.bat_ps_desc = &axp209_batt_ps_desc,
.get_max_voltage = axp813_battery_get_max_voltage,
.set_max_voltage = axp20x_battery_set_max_voltage,
.cfg_iio_chan = axp209_bat_cfg_iio_channels,
.set_bat_info = axp209_set_battery_info,
};
static const struct of_device_id axp20x_battery_ps_id[] = {
@ -561,6 +636,7 @@ static int axp20x_power_probe(struct platform_device *pdev)
struct power_supply_config psy_cfg = {};
struct power_supply_battery_info *info;
struct device *dev = &pdev->dev;
int ret;
if (!of_device_is_available(pdev->dev.of_node))
return -ENODEV;
@ -572,29 +648,6 @@ static int axp20x_power_probe(struct platform_device *pdev)
axp20x_batt->dev = &pdev->dev;
axp20x_batt->batt_v = devm_iio_channel_get(&pdev->dev, "batt_v");
if (IS_ERR(axp20x_batt->batt_v)) {
if (PTR_ERR(axp20x_batt->batt_v) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp20x_batt->batt_v);
}
axp20x_batt->batt_chrg_i = devm_iio_channel_get(&pdev->dev,
"batt_chrg_i");
if (IS_ERR(axp20x_batt->batt_chrg_i)) {
if (PTR_ERR(axp20x_batt->batt_chrg_i) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp20x_batt->batt_chrg_i);
}
axp20x_batt->batt_dischrg_i = devm_iio_channel_get(&pdev->dev,
"batt_dischrg_i");
if (IS_ERR(axp20x_batt->batt_dischrg_i)) {
if (PTR_ERR(axp20x_batt->batt_dischrg_i) == -ENODEV)
return -EPROBE_DEFER;
return PTR_ERR(axp20x_batt->batt_dischrg_i);
}
axp20x_batt->regmap = dev_get_regmap(pdev->dev.parent, NULL);
platform_set_drvdata(pdev, axp20x_batt);
@ -603,8 +656,12 @@ static int axp20x_power_probe(struct platform_device *pdev)
axp20x_batt->data = (struct axp_data *)of_device_get_match_data(dev);
ret = axp20x_batt->data->cfg_iio_chan(pdev, axp20x_batt);
if (ret)
return ret;
axp20x_batt->batt = devm_power_supply_register(&pdev->dev,
&axp20x_batt_ps_desc,
axp20x_batt->data->bat_ps_desc,
&psy_cfg);
if (IS_ERR(axp20x_batt->batt)) {
dev_err(&pdev->dev, "failed to register power supply: %ld\n",
@ -613,33 +670,15 @@ static int axp20x_power_probe(struct platform_device *pdev)
}
if (!power_supply_get_battery_info(axp20x_batt->batt, &info)) {
int vmin = info->voltage_min_design_uv;
int ccc = info->constant_charge_current_max_ua;
if (vmin > 0 && axp20x_set_voltage_min_design(axp20x_batt,
vmin))
dev_err(&pdev->dev,
"couldn't set voltage_min_design\n");
/* Set max to unverified value to be able to set CCC */
axp20x_batt->max_ccc = ccc;
if (ccc <= 0 || axp20x_set_constant_charge_current(axp20x_batt,
ccc)) {
dev_err(&pdev->dev,
"couldn't set constant charge current from DT: fallback to minimum value\n");
ccc = 300000;
axp20x_batt->max_ccc = ccc;
axp20x_set_constant_charge_current(axp20x_batt, ccc);
}
axp20x_batt->data->set_bat_info(pdev, axp20x_batt, info);
power_supply_put_battery_info(axp20x_batt->batt, info);
}
/*
* Update max CCC to a valid value if battery info is present or set it
* to current register value by default.
*/
axp20x_get_constant_charge_current(axp20x_batt,
&axp20x_batt->max_ccc);
axp20x_get_constant_charge_current(axp20x_batt, &axp20x_batt->max_ccc);
return 0;
}