[PATCH 2/4] iio: light: veml6070: use field to set integration time

From: Javier Carrasco
Date: Thu Oct 17 2024 - 17:40:03 EST


Define the integration time within the configuration register as a field
to easy its handling as an index, preparing the driver to support
configurable integration times.

Signed-off-by: Javier Carrasco <javier.carrasco.cruz@xxxxxxxxx>
---
drivers/iio/light/veml6070.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c
index 484b767df481..d11ae00f61f8 100644
--- a/drivers/iio/light/veml6070.c
+++ b/drivers/iio/light/veml6070.c
@@ -9,6 +9,7 @@
* TODO: integration time, ACK signal
*/

+#include <linux/bitfield.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/mutex.h>
@@ -28,7 +29,7 @@
#define VEML6070_COMMAND_RSRVD BIT(1) /* reserved, set to 1 */
#define VEML6070_COMMAND_SD BIT(0) /* shutdown mode when set */

-#define VEML6070_IT_10 0x04 /* integration time 1x */
+#define VEML6070_IT_10 0x01 /* integration time 1x */

struct veml6070_data {
struct i2c_client *client1;
@@ -172,8 +173,8 @@ static int veml6070_probe(struct i2c_client *client)
return dev_err_probe(&client->dev, PTR_ERR(data->client2),
"i2c device for second chip address failed\n");

- data->config = VEML6070_IT_10 | VEML6070_COMMAND_RSRVD |
- VEML6070_COMMAND_SD;
+ data->config = FIELD_PREP(VEML6070_COMMAND_IT, VEML6070_IT_10) |
+ VEML6070_COMMAND_RSRVD | VEML6070_COMMAND_SD;
ret = i2c_smbus_write_byte(data->client1, data->config);
if (ret < 0)
return ret;

--
2.43.0