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iio:adc:berlin2-adc: use short operator format
Use augmented assignment to subtract the offset for negative temperature values. Specify the amount of private data to be allocated through devm_iio_device_alloc() with sizeof(*priv), as it is shorter and common practice in IIO. Signed-off-by: Hartmut Knaack <knaack.h@gmx.de> Acked-by: Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
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@ -221,7 +221,7 @@ static int berlin2_adc_read_raw(struct iio_dev *indio_dev,
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return temp;
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if (temp > 2047)
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temp = -(4096 - temp);
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temp -= 4096;
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/* Convert to milli Celsius */
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*val = ((temp * 100000) / 264 - 270000);
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@ -286,8 +286,7 @@ static int berlin2_adc_probe(struct platform_device *pdev)
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int irq, tsen_irq;
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int ret;
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indio_dev = devm_iio_device_alloc(&pdev->dev,
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sizeof(struct berlin2_adc_priv));
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indio_dev = devm_iio_device_alloc(&pdev->dev, sizeof(*priv));
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if (!indio_dev)
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return -ENOMEM;
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