diff options
Diffstat (limited to 'drivers/iio/adc/ltc2496.c')
| -rw-r--r-- | drivers/iio/adc/ltc2496.c | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/drivers/iio/adc/ltc2496.c b/drivers/iio/adc/ltc2496.c index dd956a7c216e..f06dd0b9a858 100644 --- a/drivers/iio/adc/ltc2496.c +++ b/drivers/iio/adc/ltc2496.c @@ -15,6 +15,7 @@ #include <linux/iio/driver.h> #include <linux/module.h> #include <linux/mod_devicetable.h> +#include <linux/property.h> #include "ltc2497.h" @@ -24,10 +25,10 @@ struct ltc2496_driverdata { struct spi_device *spi; /* - * DMA (thus cache coherency maintenance) requires the + * DMA (thus cache coherency maintenance) may require the * transfer buffers to live in their own cache lines. */ - unsigned char rxbuf[3] ____cacheline_aligned; + unsigned char rxbuf[3] __aligned(IIO_DMA_MINALIGN); unsigned char txbuf[3]; }; @@ -74,22 +75,26 @@ static int ltc2496_probe(struct spi_device *spi) spi_set_drvdata(spi, indio_dev); st->spi = spi; st->common_ddata.result_and_measure = ltc2496_result_and_measure; + st->common_ddata.chip_info = device_get_match_data(dev); return ltc2497core_probe(dev, indio_dev); } -static int ltc2496_remove(struct spi_device *spi) +static void ltc2496_remove(struct spi_device *spi) { struct iio_dev *indio_dev = spi_get_drvdata(spi); ltc2497core_remove(indio_dev); - - return 0; } +static const struct ltc2497_chip_info ltc2496_info = { + .resolution = 16, + .name = NULL, +}; + static const struct of_device_id ltc2496_of_match[] = { - { .compatible = "lltc,ltc2496", }, - {}, + { .compatible = "lltc,ltc2496", .data = <c2496_info, }, + { } }; MODULE_DEVICE_TABLE(of, ltc2496_of_match); |