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path: root/drivers/iio/adc/ad7091r5.c
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Diffstat (limited to 'drivers/iio/adc/ad7091r5.c')
-rw-r--r--drivers/iio/adc/ad7091r5.c92
1 files changed, 68 insertions, 24 deletions
diff --git a/drivers/iio/adc/ad7091r5.c b/drivers/iio/adc/ad7091r5.c
index dae98c95eb..a758373341 100644
--- a/drivers/iio/adc/ad7091r5.c
+++ b/drivers/iio/adc/ad7091r5.c
@@ -12,17 +12,6 @@
#include "ad7091r-base.h"
-#define AD7091R_CHANNEL(idx, bits, ev, num_ev) { \
- .type = IIO_VOLTAGE, \
- .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
- .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_SCALE), \
- .indexed = 1, \
- .channel = idx, \
- .event_spec = ev, \
- .num_event_specs = num_ev, \
- .scan_type.storagebits = 16, \
- .scan_type.realbits = bits, \
-}
static const struct iio_chan_spec ad7091r5_channels_irq[] = {
AD7091R_CHANNEL(0, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
AD7091R_CHANNEL(1, 12, ad7091r_events, ARRAY_SIZE(ad7091r_events)),
@@ -37,43 +26,98 @@ static const struct iio_chan_spec ad7091r5_channels_noirq[] = {
AD7091R_CHANNEL(3, 12, NULL, 0),
};
+static int ad7091r5_set_mode(struct ad7091r_state *st, enum ad7091r_mode mode)
+{
+ int ret, conf;
+
+ switch (mode) {
+ case AD7091R_MODE_SAMPLE:
+ conf = 0;
+ break;
+ case AD7091R_MODE_COMMAND:
+ conf = AD7091R_REG_CONF_CMD;
+ break;
+ case AD7091R_MODE_AUTOCYCLE:
+ conf = AD7091R_REG_CONF_AUTO;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ret = regmap_update_bits(st->map, AD7091R_REG_CONF,
+ AD7091R_REG_CONF_MODE_MASK, conf);
+ if (ret)
+ return ret;
+
+ st->mode = mode;
+
+ return 0;
+}
+
+static unsigned int ad7091r5_reg_result_chan_id(unsigned int val)
+{
+ return AD7091R5_REG_RESULT_CH_ID(val);
+}
+
static const struct ad7091r_chip_info ad7091r5_chip_info_irq = {
+ .name = "ad7091r-5",
.channels = ad7091r5_channels_irq,
.num_channels = ARRAY_SIZE(ad7091r5_channels_irq),
.vref_mV = 2500,
+ .reg_result_chan_id = &ad7091r5_reg_result_chan_id,
+ .set_mode = &ad7091r5_set_mode,
};
static const struct ad7091r_chip_info ad7091r5_chip_info_noirq = {
+ .name = "ad7091r-5",
.channels = ad7091r5_channels_noirq,
.num_channels = ARRAY_SIZE(ad7091r5_channels_noirq),
.vref_mV = 2500,
+ .reg_result_chan_id = &ad7091r5_reg_result_chan_id,
+ .set_mode = &ad7091r5_set_mode,
};
-static int ad7091r5_i2c_probe(struct i2c_client *i2c)
+static const struct regmap_config ad7091r_regmap_config = {
+ .reg_bits = 8,
+ .val_bits = 16,
+ .writeable_reg = ad7091r_writeable_reg,
+ .volatile_reg = ad7091r_volatile_reg,
+};
+
+static void ad7091r5_regmap_init(struct ad7091r_state *st,
+ const struct regmap_config *regmap_conf)
{
- const struct i2c_device_id *id = i2c_client_get_device_id(i2c);
- const struct ad7091r_chip_info *chip_info;
- struct regmap *map = devm_regmap_init_i2c(i2c, &ad7091r_regmap_config);
+ struct i2c_client *i2c = container_of(st->dev, struct i2c_client, dev);
+
+ st->map = devm_regmap_init_i2c(i2c, regmap_conf);
+}
+
+static struct ad7091r_init_info ad7091r5_init_info = {
+ .info_irq = &ad7091r5_chip_info_irq,
+ .info_no_irq = &ad7091r5_chip_info_noirq,
+ .regmap_config = &ad7091r_regmap_config,
+ .init_adc_regmap = &ad7091r5_regmap_init
+};
- if (IS_ERR(map))
- return PTR_ERR(map);
+static int ad7091r5_i2c_probe(struct i2c_client *i2c)
+{
+ const struct ad7091r_init_info *init_info;
- if (i2c->irq)
- chip_info = &ad7091r5_chip_info_irq;
- else
- chip_info = &ad7091r5_chip_info_noirq;
+ init_info = i2c_get_match_data(i2c);
+ if (!init_info)
+ return -EINVAL;
- return ad7091r_probe(&i2c->dev, id->name, chip_info, map, i2c->irq);
+ return ad7091r_probe(&i2c->dev, init_info, i2c->irq);
}
static const struct of_device_id ad7091r5_dt_ids[] = {
- { .compatible = "adi,ad7091r5" },
+ { .compatible = "adi,ad7091r5", .data = &ad7091r5_init_info },
{},
};
MODULE_DEVICE_TABLE(of, ad7091r5_dt_ids);
static const struct i2c_device_id ad7091r5_i2c_ids[] = {
- {"ad7091r5", 0},
+ {"ad7091r5", (kernel_ulong_t)&ad7091r5_init_info },
{}
};
MODULE_DEVICE_TABLE(i2c, ad7091r5_i2c_ids);