2024-06-12 21:05:37

by David Lechner

Subject: [PATCH v2 4/5] iio: adc: ad7793: use devm_regulator_get_enable_read_voltage

This makes use of the new devm_regulator_get_enable_read_voltage()
function to reduce boilerplate code.

Signed-off-by: David Lechner <[email protected]>
---
v2 changes: none
---
drivers/iio/adc/ad7793.c | 24 +++---------------------
1 file changed, 3 insertions(+), 21 deletions(-)

diff --git a/drivers/iio/adc/ad7793.c b/drivers/iio/adc/ad7793.c
index 5f8cb9aaac70..d4ad7e0b515a 100644
--- a/drivers/iio/adc/ad7793.c
+++ b/drivers/iio/adc/ad7793.c
@@ -152,7 +152,6 @@ struct ad7793_chip_info {

struct ad7793_state {
const struct ad7793_chip_info *chip_info;
- struct regulator *reg;
u16 int_vref_mv;
u16 mode;
u16 conf;
@@ -769,11 +768,6 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
},
};

-static void ad7793_reg_disable(void *reg)
-{
- regulator_disable(reg);
-}
-
static int ad7793_probe(struct spi_device *spi)
{
const struct ad7793_platform_data *pdata = spi->dev.platform_data;
@@ -800,23 +794,11 @@ static int ad7793_probe(struct spi_device *spi)
ad_sd_init(&st->sd, indio_dev, spi, &ad7793_sigma_delta_info);

if (pdata->refsel != AD7793_REFSEL_INTERNAL) {
- st->reg = devm_regulator_get(&spi->dev, "refin");
- if (IS_ERR(st->reg))
- return PTR_ERR(st->reg);
-
- ret = regulator_enable(st->reg);
- if (ret)
- return ret;
-
- ret = devm_add_action_or_reset(&spi->dev, ad7793_reg_disable, st->reg);
- if (ret)
+ ret = devm_regulator_get_enable_read_voltage(&spi->dev, "refin");
+ if (ret < 0)
return ret;

- vref_mv = regulator_get_voltage(st->reg);
- if (vref_mv < 0)
- return vref_mv;
-
- vref_mv /= 1000;
+ vref_mv = ret / 1000;
} else {
vref_mv = 1170; /* Build-in ref */
}

--
2.45.2

2024-06-15 12:15:58

by Jonathan Cameron

Subject: Re: [PATCH v2 4/5] iio: adc: ad7793: use devm_regulator_get_enable_read_voltage

On Wed, 12 Jun 2024 16:03:08 -0500
David Lechner <[email protected]> wrote:

> This makes use of the new devm_regulator_get_enable_read_voltage()
> function to reduce boilerplate code.
>
> Signed-off-by: David Lechner <[email protected]>
Applied