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iio: adc: twl6030-gpadc: Use devm_* API family

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Using devm_iio_device_alloc and devm_request_threaded_irq makes
code simpler.

Signed-off-by: Oleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Oleksandr Kozaruk 2013-08-19 12:09:00 +01:00 committed by Jonathan Cameron
parent 4c73029265
commit fa659a40b8
1 changed files with 10 additions and 26 deletions
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36
drivers/iio/adc/twl6030-gpadc.c
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@ -893,11 +893,9 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
pdata = match->data;
indio_dev = iio_device_alloc(sizeof(*gpadc));
if (!indio_dev) {
dev_err(dev, "failed allocating iio device\n");
ret = -ENOMEM;
}
indio_dev = devm_iio_device_alloc(dev, sizeof(*gpadc));
if (!indio_dev)
return -ENOMEM;
gpadc = iio_priv(indio_dev);
@ -905,7 +903,7 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
sizeof(*gpadc->twl6030_cal_tbl) *
pdata->nchannels, GFP_KERNEL);
if (!gpadc->twl6030_cal_tbl)
goto err_free_device;
return -ENOMEM;
gpadc->dev = dev;
gpadc->pdata = pdata;
@ -917,33 +915,30 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
ret = pdata->calibrate(gpadc);
if (ret < 0) {
dev_err(&pdev->dev, "failed to read calibration registers\n");
goto err_free_device;
return ret;
}
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
dev_err(&pdev->dev, "failed to get irq\n");
goto err_free_device;
return irq;
}
ret = request_threaded_irq(irq, NULL, twl6030_gpadc_irq_handler,
ret = devm_request_threaded_irq(dev, irq, NULL,
twl6030_gpadc_irq_handler,
IRQF_ONESHOT, "twl6030_gpadc", indio_dev);
if (ret) {
dev_dbg(&pdev->dev, "could not request irq\n");
goto err_free_device;
}
ret = twl6030_gpadc_enable_irq(TWL6030_GPADC_RT_SW1_EOC_MASK);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable GPADC interrupt\n");
goto err_free_irq;
return ret;
}
ret = twl_i2c_write_u8(TWL6030_MODULE_ID1, TWL6030_GPADCS,
TWL6030_REG_TOGGLE1);
if (ret < 0) {
dev_err(&pdev->dev, "failed to enable GPADC module\n");
goto err_free_irq;
return ret;
}
indio_dev->name = DRIVER_NAME;
@ -954,15 +949,6 @@ static int twl6030_gpadc_probe(struct platform_device *pdev)
indio_dev->num_channels = pdata->nchannels;
ret = iio_device_register(indio_dev);
if (ret)
goto err_free_irq;
return ret;
err_free_irq:
free_irq(irq, indio_dev);
err_free_device:
iio_device_free(indio_dev);
return ret;
}
@ -972,9 +958,7 @@ static int twl6030_gpadc_remove(struct platform_device *pdev)
struct iio_dev *indio_dev = platform_get_drvdata(pdev);
twl6030_gpadc_disable_irq(TWL6030_GPADC_RT_SW1_EOC_MASK);
free_irq(platform_get_irq(pdev, 0), indio_dev);
iio_device_unregister(indio_dev);
iio_device_free(indio_dev);
return 0;
}