Commit fa659a40 authored by Oleksandr Kozaruk's avatar Oleksandr Kozaruk Committed by Jonathan Cameron
Browse files

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



Using devm_iio_device_alloc and devm_request_threaded_irq makes
code simpler.

Signed-off-by: default avatarOleksandr Kozaruk <oleksandr.kozaruk@ti.com>
Signed-off-by: default avatarJonathan Cameron <jic23@kernel.org>
parent 4c730292

drivers/iio/adc/twl6030-gpadc.c

+10 −26
Original line number Diff line number Diff line
@@ -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;

}