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Message-Id: <20241023-iio-regulator-refactor-round-5-v1-11-d0bd396b3f50@baylibre.com>
Date: Wed, 23 Oct 2024 18:54:15 -0500
From: David Lechner <dlechner@...libre.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Michael Hennerich <Michael.Hennerich@...log.com>,
Liam Girdwood <lgirdwood@...il.com>, Mark Brown <broonie@...nel.org>,
linux-iio@...r.kernel.org, linux-kernel@...r.kernel.org,
David Lechner <dlechner@...libre.com>
Subject: [PATCH 11/11] iio: dac: ad5770r: use
devm_regulator_get_enable_read_voltage()
Simplify the code by using devm_regulator_get_enable_read_voltage().
Signed-off-by: David Lechner <dlechner@...libre.com>
---
drivers/iio/dac/ad5770r.c | 41 +++++------------------------------------
1 file changed, 5 insertions(+), 36 deletions(-)
diff --git a/drivers/iio/dac/ad5770r.c b/drivers/iio/dac/ad5770r.c
index 7d7f5110d66a..25cf11d0471b 100644
--- a/drivers/iio/dac/ad5770r.c
+++ b/drivers/iio/dac/ad5770r.c
@@ -122,7 +122,6 @@ struct ad5770r_out_range {
* struct ad5770r_state - driver instance specific data
* @spi: spi_device
* @regmap: regmap
- * @vref_reg: fixed regulator for reference configuration
* @gpio_reset: gpio descriptor
* @output_mode: array contains channels output ranges
* @vref: reference value
@@ -134,7 +133,6 @@ struct ad5770r_out_range {
struct ad5770r_state {
struct spi_device *spi;
struct regmap *regmap;
- struct regulator *vref_reg;
struct gpio_desc *gpio_reset;
struct ad5770r_out_range output_mode[AD5770R_MAX_CHANNELS];
int vref;
@@ -591,13 +589,6 @@ static int ad5770r_init(struct ad5770r_state *st)
return ret;
}
-static void ad5770r_disable_regulator(void *data)
-{
- struct ad5770r_state *st = data;
-
- regulator_disable(st->vref_reg);
-}
-
static int ad5770r_probe(struct spi_device *spi)
{
struct ad5770r_state *st;
@@ -622,34 +613,12 @@ static int ad5770r_probe(struct spi_device *spi)
}
st->regmap = regmap;
- st->vref_reg = devm_regulator_get_optional(&spi->dev, "vref");
- if (!IS_ERR(st->vref_reg)) {
- ret = regulator_enable(st->vref_reg);
- if (ret) {
- dev_err(&spi->dev,
- "Failed to enable vref regulators: %d\n", ret);
- return ret;
- }
+ ret = devm_regulator_get_enable_read_voltage(&spi->dev, "vref");
+ if (ret < 0 && ret != -ENODEV)
+ return dev_err_probe(&spi->dev, ret, "Failed to get vref voltage\n");
- ret = devm_add_action_or_reset(&spi->dev,
- ad5770r_disable_regulator,
- st);
- if (ret < 0)
- return ret;
-
- ret = regulator_get_voltage(st->vref_reg);
- if (ret < 0)
- return ret;
-
- st->vref = ret / 1000;
- } else {
- if (PTR_ERR(st->vref_reg) == -ENODEV) {
- st->vref = AD5770R_LOW_VREF_mV;
- st->internal_ref = true;
- } else {
- return PTR_ERR(st->vref_reg);
- }
- }
+ st->internal_ref = ret == -ENODEV;
+ st->vref = st->internal_ref ? AD5770R_LOW_VREF_mV : ret / 1000;
indio_dev->name = spi_get_device_id(spi)->name;
indio_dev->info = &ad5770r_info;
--
2.43.0
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