diff options
| author | Jakob Hauser <jahau@rocketmail.com> | 2022-08-13 00:05:00 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2022-08-15 22:30:03 +0100 |
| commit | 913fd409668b7fd54db5efd979417a9f94dcc79b (patch) | |
| tree | 29b29fa01de200306438871b3a14167967609e75 /drivers/iio | |
| parent | dd9bd44f877d8935b7359f083626786cead98adb (diff) | |
| download | linux-stable-913fd409668b7fd54db5efd979417a9f94dcc79b.tar.gz linux-stable-913fd409668b7fd54db5efd979417a9f94dcc79b.tar.bz2 linux-stable-913fd409668b7fd54db5efd979417a9f94dcc79b.zip | |
iio: magnetometer: yas530: Add IIO scaling to "chip_info"
Add IIO scaling to the "chip_info" structure to ease the handling to
different YAS variants.
Signed-off-by: Jakob Hauser <jahau@rocketmail.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/a12f892633bbee13a8856c231dc793ebbc5d3a03.1660337264.git.jahau@rocketmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio')
| -rw-r--r-- | drivers/iio/magnetometer/yamaha-yas530.c | 28 |
1 files changed, 7 insertions, 21 deletions
diff --git a/drivers/iio/magnetometer/yamaha-yas530.c b/drivers/iio/magnetometer/yamaha-yas530.c index fa317b975f8f..af5c090098fb 100644 --- a/drivers/iio/magnetometer/yamaha-yas530.c +++ b/drivers/iio/magnetometer/yamaha-yas530.c @@ -130,6 +130,7 @@ struct yas5xx; * @version_names: version letters or namings * @volatile_reg: device-specific volatile registers * @volatile_reg_qty: quantity of device-specific volatile registers + * @scaling_val2: scaling value for IIO_CHAN_INFO_SCALE */ struct yas5xx_chip_info { unsigned int devid; @@ -137,6 +138,7 @@ struct yas5xx_chip_info { char *version_names[2]; const int *volatile_reg; int volatile_reg_qty; + u32 scaling_val2; }; /** @@ -504,27 +506,8 @@ static int yas5xx_read_raw(struct iio_dev *indio_dev, } return IIO_VAL_INT; case IIO_CHAN_INFO_SCALE: - switch (ci->devid) { - case YAS530_DEVICE_ID: - /* - * Raw values of YAS530 are in picotesla. Divide by - * 100000000 (10^8) to get Gauss. - */ - *val = 1; - *val2 = 100000000; - break; - case YAS532_DEVICE_ID: - /* - * Raw values of YAS532 are in nanotesla. Divide by - * 100000 (10^5) to get Gauss. - */ - *val = 1; - *val2 = 100000; - break; - default: - dev_err(yas5xx->dev, "unknown device type\n"); - return -EINVAL; - } + *val = 1; + *val2 = ci->scaling_val2; return IIO_VAL_FRACTIONAL; default: /* Unknown request */ @@ -951,6 +934,7 @@ static const struct yas5xx_chip_info yas5xx_chip_info_tbl[] = { .version_names = { "A", "B" }, .volatile_reg = yas530_volatile_reg, .volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg), + .scaling_val2 = 100000000, /* picotesla to Gauss */ }, [yas532] = { .devid = YAS532_DEVICE_ID, @@ -958,6 +942,7 @@ static const struct yas5xx_chip_info yas5xx_chip_info_tbl[] = { .version_names = { "AB", "AC" }, .volatile_reg = yas530_volatile_reg, .volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg), + .scaling_val2 = 100000, /* nanotesla to Gauss */ }, [yas533] = { .devid = YAS532_DEVICE_ID, @@ -965,6 +950,7 @@ static const struct yas5xx_chip_info yas5xx_chip_info_tbl[] = { .version_names = { "AB", "AC" }, .volatile_reg = yas530_volatile_reg, .volatile_reg_qty = ARRAY_SIZE(yas530_volatile_reg), + .scaling_val2 = 100000, /* nanotesla to Gauss */ }, }; |