diff options
| author | Javier Carrasco <javier.carrasco.cruz@gmail.com> | 2025-01-19 18:31:59 +0100 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-02-08 15:10:15 +0000 |
| commit | 46e28867540434f94ddb745c74466f40669bcc48 (patch) | |
| tree | c3cf878603ecdcf6e6b907bbadfbc6615c7af4f8 /drivers | |
| parent | 9c7eb1ab2eec47ad9eaf6e11ce14d3d6fd54e677 (diff) | |
iio: light: veml6030: extend regmap to support caching
The configuration registers are not volatile and are not affected
by read operations (i.e. not precious), making them suitable to be
cached in order to reduce the number of accesses to the device.
Add support for caching (RBTREE type).
Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com>
Link: https://patch.msgid.link/20250119-veml6030-scale-v2-2-6bfc4062a371@gmail.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/light/veml6030.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/iio/light/veml6030.c b/drivers/iio/light/veml6030.c index 8e4eb8b0c192..3afd4bb1ad53 100644 --- a/drivers/iio/light/veml6030.c +++ b/drivers/iio/light/veml6030.c @@ -333,12 +333,43 @@ static const struct iio_chan_spec veml7700_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(VEML6030_SCAN_TIMESTAMP), }; +static const struct regmap_range veml6030_readable_ranges[] = { + regmap_reg_range(VEML6030_REG_ALS_CONF, VEML6030_REG_ALS_INT), +}; + +static const struct regmap_access_table veml6030_readable_table = { + .yes_ranges = veml6030_readable_ranges, + .n_yes_ranges = ARRAY_SIZE(veml6030_readable_ranges), +}; + +static const struct regmap_range veml6030_writable_ranges[] = { + regmap_reg_range(VEML6030_REG_ALS_CONF, VEML6030_REG_ALS_PSM), +}; + +static const struct regmap_access_table veml6030_writable_table = { + .yes_ranges = veml6030_writable_ranges, + .n_yes_ranges = ARRAY_SIZE(veml6030_writable_ranges), +}; + +static const struct regmap_range veml6030_volatile_ranges[] = { + regmap_reg_range(VEML6030_REG_ALS_DATA, VEML6030_REG_WH_DATA), +}; + +static const struct regmap_access_table veml6030_volatile_table = { + .yes_ranges = veml6030_volatile_ranges, + .n_yes_ranges = ARRAY_SIZE(veml6030_volatile_ranges), +}; + static const struct regmap_config veml6030_regmap_config = { .name = "veml6030_regmap", .reg_bits = 8, .val_bits = 16, .max_register = VEML6030_REG_ALS_INT, .val_format_endian = REGMAP_ENDIAN_LITTLE, + .rd_table = &veml6030_readable_table, + .wr_table = &veml6030_writable_table, + .volatile_table = &veml6030_volatile_table, + .cache_type = REGCACHE_RBTREE, }; static int veml6030_get_intgrn_tm(struct iio_dev *indio_dev, |