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iio: adc: ad7380: enable regmap cache

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Enable regmap cache, to avoid useless access on spi bus.

Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Julien Stephan <jstephan@baylibre.com>
Link: https://patch.msgid.link/20250108-ad7380-add-alert-support-v4-2-1751802471ba@baylibre.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Julien Stephan 2025-01-08 13:49:34 +01:00 committed by Jonathan Cameron
parent 39bc50e00f
commit 85e5605279
1 changed files with 18 additions and 0 deletions
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18
drivers/iio/adc/ad7380.c
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@ -663,6 +663,20 @@ static int ad7380_regmap_reg_read(void *context, unsigned int reg,
return 0;
}
static const struct reg_default ad7380_reg_defaults[] = {
{ AD7380_REG_ADDR_ALERT_LOW_TH, 0x800 },
{ AD7380_REG_ADDR_ALERT_HIGH_TH, 0x7FF },
};
static const struct regmap_range ad7380_volatile_reg_ranges[] = {
regmap_reg_range(AD7380_REG_ADDR_CONFIG2, AD7380_REG_ADDR_ALERT),
};
static const struct regmap_access_table ad7380_volatile_regs = {
.yes_ranges = ad7380_volatile_reg_ranges,
.n_yes_ranges = ARRAY_SIZE(ad7380_volatile_reg_ranges),
};
static const struct regmap_config ad7380_regmap_config = {
.reg_bits = 3,
.val_bits = 12,
@ -670,6 +684,10 @@ static const struct regmap_config ad7380_regmap_config = {
.reg_write = ad7380_regmap_reg_write,
.max_register = AD7380_REG_ADDR_ALERT_HIGH_TH,
.can_sleep = true,
.reg_defaults = ad7380_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(ad7380_reg_defaults),
.volatile_table = &ad7380_volatile_regs,
.cache_type = REGCACHE_MAPLE,
};
static int ad7380_debugfs_reg_access(struct iio_dev *indio_dev, u32 reg,