diff options
Diffstat (limited to 'drivers/iio/adc/ad7766.c')
| -rw-r--r-- | drivers/iio/adc/ad7766.c | 34 |
1 files changed, 12 insertions, 22 deletions
diff --git a/drivers/iio/adc/ad7766.c b/drivers/iio/adc/ad7766.c index bc388ea41754..3079a0872947 100644 --- a/drivers/iio/adc/ad7766.c +++ b/drivers/iio/adc/ad7766.c @@ -45,13 +45,12 @@ struct ad7766 { struct spi_message msg; /* - * DMA (thus cache coherency maintenance) requires the + * DMA (thus cache coherency maintenance) may require the * transfer buffers to live in their own cache lines. * Make the buffer large enough for one 24 bit sample and one 64 bit * aligned 64 bit timestamp. */ - unsigned char data[ALIGN(3, sizeof(s64)) + sizeof(s64)] - ____cacheline_aligned; + unsigned char data[ALIGN(3, sizeof(s64)) + sizeof(s64)] __aligned(IIO_DMA_MINALIGN); }; /* @@ -178,8 +177,6 @@ static const struct ad7766_chip_info ad7766_chip_info[] = { static const struct iio_buffer_setup_ops ad7766_buffer_setup_ops = { .preenable = &ad7766_preenable, - .postenable = &iio_triggered_buffer_postenable, - .predisable = &iio_triggered_buffer_predisable, .postdisable = &ad7766_postdisable, }; @@ -242,7 +239,6 @@ static int ad7766_probe(struct spi_device *spi) if (IS_ERR(ad7766->pd_gpio)) return PTR_ERR(ad7766->pd_gpio); - indio_dev->dev.parent = &spi->dev; indio_dev->name = spi_get_device_id(spi)->name; indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->channels = ad7766_channels; @@ -251,34 +247,31 @@ static int ad7766_probe(struct spi_device *spi) if (spi->irq > 0) { ad7766->trig = devm_iio_trigger_alloc(&spi->dev, "%s-dev%d", - indio_dev->name, indio_dev->id); + indio_dev->name, + iio_device_id(indio_dev)); if (!ad7766->trig) return -ENOMEM; ad7766->trig->ops = &ad7766_trigger_ops; - ad7766->trig->dev.parent = &spi->dev; iio_trigger_set_drvdata(ad7766->trig, ad7766); - ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq, - IRQF_TRIGGER_FALLING, dev_name(&spi->dev), - ad7766->trig); - if (ret < 0) - return ret; - /* * The device generates interrupts as long as it is powered up. * Some platforms might not allow the option to power it down so - * disable the interrupt to avoid extra load on the system + * don't enable the interrupt to avoid extra load on the system */ - disable_irq(spi->irq); + ret = devm_request_irq(&spi->dev, spi->irq, ad7766_irq, + IRQF_TRIGGER_FALLING | IRQF_NO_AUTOEN, + dev_name(&spi->dev), + ad7766->trig); + if (ret < 0) + return ret; ret = devm_iio_trigger_register(&spi->dev, ad7766->trig); if (ret) return ret; } - spi_set_drvdata(spi, indio_dev); - ad7766->spi = spi; /* First byte always 0 */ @@ -294,10 +287,7 @@ static int ad7766_probe(struct spi_device *spi) if (ret) return ret; - ret = devm_iio_device_register(&spi->dev, indio_dev); - if (ret) - return ret; - return 0; + return devm_iio_device_register(&spi->dev, indio_dev); } static const struct spi_device_id ad7766_id[] = { |