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power: supply: ab8500_charger: Restrict ADC retrieveal

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The AB8505 only has two ADC channels: the voltage and current
provided from VBUS (USB). It does not support AC charging at all.
Make sure we don't try to retrieve the non-existing channels.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This commit is contained in:
Linus Walleij 2022-01-29 01:49:24 +01:00 committed by Sebastian Reichel
parent 75ee3f6f0c
commit 0f6dad11fd
1 changed files with 13 additions and 11 deletions
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24
drivers/power/supply/ab8500_charger.c
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@ -3443,17 +3443,19 @@ static int ab8500_charger_probe(struct platform_device *pdev)
di->parent = dev_get_drvdata(pdev->dev.parent);
/* Get ADC channels */
di->adc_main_charger_v = devm_iio_channel_get(dev, "main_charger_v");
if (IS_ERR(di->adc_main_charger_v)) {
ret = dev_err_probe(dev, PTR_ERR(di->adc_main_charger_v),
"failed to get ADC main charger voltage\n");
return ret;
}
di->adc_main_charger_c = devm_iio_channel_get(dev, "main_charger_c");
if (IS_ERR(di->adc_main_charger_c)) {
ret = dev_err_probe(dev, PTR_ERR(di->adc_main_charger_c),
"failed to get ADC main charger current\n");
return ret;
if (!is_ab8505(di->parent)) {
di->adc_main_charger_v = devm_iio_channel_get(dev, "main_charger_v");
if (IS_ERR(di->adc_main_charger_v)) {
ret = dev_err_probe(dev, PTR_ERR(di->adc_main_charger_v),
"failed to get ADC main charger voltage\n");
return ret;
}
di->adc_main_charger_c = devm_iio_channel_get(dev, "main_charger_c");
if (IS_ERR(di->adc_main_charger_c)) {
ret = dev_err_probe(dev, PTR_ERR(di->adc_main_charger_c),
"failed to get ADC main charger current\n");
return ret;
}
}
di->adc_vbus_v = devm_iio_channel_get(dev, "vbus_v");
if (IS_ERR(di->adc_vbus_v)) {