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iio: adc: meson: improve error logging at probe stage

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Add log messages for errors that may occur at the probe stage

Signed-off-by: George Stark <gnstark@sberdevices.ru>
Link: https://lore.kernel.org/r/20230721102413.255726-3-gnstark@sberdevices.ru
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
George Stark 2023-07-21 13:23:09 +03:00 committed by Jonathan Cameron
parent 1c8af63782
commit d27425d5d8
1 changed files with 10 additions and 6 deletions
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16
drivers/iio/adc/meson_saradc.c
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@ -1045,8 +1045,10 @@ static int meson_sar_adc_hw_enable(struct iio_dev *indio_dev)
u32 regval;
ret = meson_sar_adc_lock(indio_dev);
if (ret)
if (ret) {
dev_err(dev, "failed to lock adc\n");
goto err_lock;
}
ret = regulator_enable(priv->vref);
if (ret < 0) {
@ -1354,15 +1356,15 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
priv->regmap = devm_regmap_init_mmio(dev, base, priv->param->regmap_config);
if (IS_ERR(priv->regmap))
return PTR_ERR(priv->regmap);
return dev_err_probe(dev, PTR_ERR(priv->regmap), "failed to init regmap\n");
irq = irq_of_parse_and_map(dev->of_node, 0);
if (!irq)
return -EINVAL;
return dev_err_probe(dev, -EINVAL, "failed to get irq\n");
ret = devm_request_irq(dev, irq, meson_sar_adc_irq, IRQF_SHARED, dev_name(dev), indio_dev);
if (ret)
return ret;
return dev_err_probe(dev, ret, "failed to request irq\n");
priv->clkin = devm_clk_get(dev, "clkin");
if (IS_ERR(priv->clkin))
@ -1384,7 +1386,7 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
if (!priv->adc_clk) {
ret = meson_sar_adc_clk_init(indio_dev, base);
if (ret)
return ret;
return dev_err_probe(dev, ret, "failed to init internal clk\n");
}
priv->vref = devm_regulator_get(dev, "vref");
@ -1426,8 +1428,10 @@ static int meson_sar_adc_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, indio_dev);
ret = iio_device_register(indio_dev);
if (ret)
if (ret) {
dev_err_probe(dev, ret, "failed to register iio device\n");
goto err_hw;
}
return 0;