iio: stmpe-adc: Enable all stmpe-adc interrupts just once
This commit will enable the interrupts of all channels handled by this driver only once in the probe function. This will improve performance because one byte less has to be written over i2c on each read out of the adc. On the fastest ADC mode this will improve read out speed by 15%. Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>alistair/sunxi64-5.4-dsi
parent
263d21cd5e
commit
4bd44bb2b4
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@ -74,9 +74,6 @@ static int stmpe_read_voltage(struct stmpe_adc *info,
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return -EINVAL;
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}
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stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN,
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STMPE_ADC_CH(info->channel));
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stmpe_reg_write(info->stmpe, STMPE_REG_ADC_CAPT,
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STMPE_ADC_CH(info->channel));
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@ -333,6 +330,9 @@ static int stmpe_adc_probe(struct platform_device *pdev)
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if (ret)
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return ret;
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stmpe_reg_write(info->stmpe, STMPE_REG_ADC_INT_EN,
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~(norequest_mask & 0xFF));
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return devm_iio_device_register(&pdev->dev, indio_dev);
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}
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