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power: supply: ab8500: Use dev_err_probe() for IIO channels 

The code obtaining the ADC channels is outdated: it is
trying to work around the IIO subsystem not returning
the right -EPROBE_DEFER error code. Fix this up
by using the dev_err_probe() helper so we defer silently
where appropriate and not bail out if the IIO core
returns -EPROBE_DEFER as happens now.

Cc: Marcus Cooper <codekipper@gmail.com>
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 2020-12-12 11:57:12 +01:00 committed by Sebastian Reichel
parent 807042539d
commit 36f1de0d5c
3 changed files with 24 additions and 34 deletions
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14
drivers/power/supply/ab8500_btemp.c
View File

@ -1023,17 +1023,15 @@ static int ab8500_btemp_probe(struct platform_device *pdev)
/* Get ADC channels */
di->btemp_ball = devm_iio_channel_get(dev, "btemp_ball");
if (IS_ERR(di->btemp_ball)) {
if (PTR_ERR(di->btemp_ball) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get BTEMP BALL ADC channel\n");
return PTR_ERR(di->btemp_ball);
ret = dev_err_probe(dev, PTR_ERR(di->btemp_ball),
"failed to get BTEMP BALL ADC channel\n");
return ret;
}
di->bat_ctrl = devm_iio_channel_get(dev, "bat_ctrl");
if (IS_ERR(di->bat_ctrl)) {
if (PTR_ERR(di->bat_ctrl) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get BAT CTRL ADC channel\n");
return PTR_ERR(di->bat_ctrl);
ret = dev_err_probe(dev, PTR_ERR(di->bat_ctrl),
"failed to get BAT CTRL ADC channel\n");
return ret;
}
di->initialized = false;

37
drivers/power/supply/ab8500_charger.c
View File

@ -3375,36 +3375,29 @@ 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");
di->adc_main_charger_v = devm_iio_channel_get(dev, "main_charger_v");
if (IS_ERR(di->adc_main_charger_v)) {
if (PTR_ERR(di->adc_main_charger_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get ADC main charger voltage\n");
return PTR_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");
di->adc_main_charger_c = devm_iio_channel_get(dev, "main_charger_c");
if (IS_ERR(di->adc_main_charger_c)) {
if (PTR_ERR(di->adc_main_charger_c) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get ADC main charger current\n");
return PTR_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)) {
if (PTR_ERR(di->adc_vbus_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get ADC USB charger voltage\n");
return PTR_ERR(di->adc_vbus_v);
ret = dev_err_probe(dev, PTR_ERR(di->adc_vbus_v),
"failed to get ADC USB charger voltage\n");
return ret;
}
di->adc_usb_charger_c = devm_iio_channel_get(dev,
"usb_charger_c");
di->adc_usb_charger_c = devm_iio_channel_get(dev, "usb_charger_c");
if (IS_ERR(di->adc_usb_charger_c)) {
if (PTR_ERR(di->adc_usb_charger_c) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get ADC USB charger current\n");
return PTR_ERR(di->adc_usb_charger_c);
ret = dev_err_probe(dev, PTR_ERR(di->adc_usb_charger_c),
"failed to get ADC USB charger current\n");
return ret;
}
/* initialize lock */

7
drivers/power/supply/ab8500_fg.c
View File

@ -3059,10 +3059,9 @@ static int ab8500_fg_probe(struct platform_device *pdev)
di->main_bat_v = devm_iio_channel_get(dev, "main_bat_v");
if (IS_ERR(di->main_bat_v)) {
if (PTR_ERR(di->main_bat_v) == -ENODEV)
return -EPROBE_DEFER;
dev_err(dev, "failed to get main battery ADC channel\n");
return PTR_ERR(di->main_bat_v);
ret = dev_err_probe(dev, PTR_ERR(di->main_bat_v),
"failed to get main battery ADC channel\n");
return ret;
}
psy_cfg.supplied_to = supply_interface;