From: David Lechner <dlechner@baylibre.com>
To: Jonathan Corbet <corbet@lwn.net>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Support Opensource <support.opensource@diasemi.com>,
Cosmin Tanislav <cosmin.tanislav@analog.com>,
Lars-Peter Clausen <lars@metafoo.de>,
Michael Hennerich <Michael.Hennerich@analog.com>,
Jonathan Cameron <jic23@kernel.org>,
Antoniu Miclaus <antoniu.miclaus@analog.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: David Lechner <dlechner@baylibre.com>,
linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-hwmon@vger.kernel.org, linux-iio@vger.kernel.org,
linux-staging@lists.linux.dev, linux-input@vger.kernel.org
Subject: [PATCH RFC 5/7] iio: frequency: admv1013: Use devm_regulator_get_enable_get_voltage()
Date: Wed, 27 Mar 2024 18:18:54 -0500 [thread overview]
Message-ID: <20240327-regulator-get-enable-get-votlage-v1-5-5f4517faa059@baylibre.com> (raw)
In-Reply-To: <20240327-regulator-get-enable-get-votlage-v1-0-5f4517faa059@baylibre.com>
We can reduce boilerplate code by using
devm_regulator_get_enable_get_voltage().
The common mode voltage is now passed as a parameter in the init
functions so we can avoid adding a state member that is only used
during init.
Signed-off-by: David Lechner <dlechner@baylibre.com>
---
drivers/iio/frequency/admv1013.c | 37 ++++++++-----------------------------
1 file changed, 8 insertions(+), 29 deletions(-)
diff --git a/drivers/iio/frequency/admv1013.c b/drivers/iio/frequency/admv1013.c
index 92923074f930..b0aa3cc27ea9 100644
--- a/drivers/iio/frequency/admv1013.c
+++ b/drivers/iio/frequency/admv1013.c
@@ -95,7 +95,6 @@ struct admv1013_state {
struct clk *clkin;
/* Protect against concurrent accesses to the device and to data */
struct mutex lock;
- struct regulator *reg;
struct notifier_block nb;
unsigned int input_mode;
unsigned int quad_se_mode;
@@ -342,14 +341,9 @@ static int admv1013_update_quad_filters(struct admv1013_state *st)
FIELD_PREP(ADMV1013_QUAD_FILTERS_MSK, filt_raw));
}
-static int admv1013_update_mixer_vgate(struct admv1013_state *st)
+static int admv1013_update_mixer_vgate(struct admv1013_state *st, int vcm)
{
unsigned int mixer_vgate;
- int vcm;
-
- vcm = regulator_get_voltage(st->reg);
- if (vcm < 0)
- return vcm;
if (vcm <= 1800000)
mixer_vgate = (2389 * vcm / 1000000 + 8100) / 100;
@@ -443,7 +437,7 @@ static const struct iio_chan_spec admv1013_channels[] = {
ADMV1013_CHAN_CALIB(1, Q),
};
-static int admv1013_init(struct admv1013_state *st)
+static int admv1013_init(struct admv1013_state *st, int vcm_uv)
{
int ret;
unsigned int data;
@@ -483,7 +477,7 @@ static int admv1013_init(struct admv1013_state *st)
if (ret)
return ret;
- ret = admv1013_update_mixer_vgate(st);
+ ret = admv1013_update_mixer_vgate(st, vcm_uv);
if (ret)
return ret;
@@ -498,11 +492,6 @@ static int admv1013_init(struct admv1013_state *st)
st->input_mode);
}
-static void admv1013_reg_disable(void *data)
-{
- regulator_disable(data);
-}
-
static void admv1013_powerdown(void *data)
{
unsigned int enable_reg, enable_reg_msk;
@@ -557,11 +546,6 @@ static int admv1013_properties_parse(struct admv1013_state *st)
else
return -EINVAL;
- st->reg = devm_regulator_get(&spi->dev, "vcm");
- if (IS_ERR(st->reg))
- return dev_err_probe(&spi->dev, PTR_ERR(st->reg),
- "failed to get the common-mode voltage\n");
-
ret = devm_regulator_bulk_get_enable(&st->spi->dev,
ARRAY_SIZE(admv1013_vcc_regs),
admv1013_vcc_regs);
@@ -578,7 +562,7 @@ static int admv1013_probe(struct spi_device *spi)
{
struct iio_dev *indio_dev;
struct admv1013_state *st;
- int ret;
+ int ret, vcm_uv;
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*st));
if (!indio_dev)
@@ -597,16 +581,11 @@ static int admv1013_probe(struct spi_device *spi)
if (ret)
return ret;
- ret = regulator_enable(st->reg);
- if (ret) {
- dev_err(&spi->dev, "Failed to enable specified Common-Mode Voltage!\n");
+ ret = devm_regulator_get_enable_get_voltage(&spi->dev, "vcm");
+ if (ret < 0)
return ret;
- }
- ret = devm_add_action_or_reset(&spi->dev, admv1013_reg_disable,
- st->reg);
- if (ret)
- return ret;
+ vcm_uv = ret;
st->clkin = devm_clk_get_enabled(&spi->dev, "lo_in");
if (IS_ERR(st->clkin))
@@ -620,7 +599,7 @@ static int admv1013_probe(struct spi_device *spi)
mutex_init(&st->lock);
- ret = admv1013_init(st);
+ ret = admv1013_init(st, vcm_uv);
if (ret) {
dev_err(&spi->dev, "admv1013 init failed\n");
return ret;
--
2.43.2
next prev parent reply other threads:[~2024-03-27 23:19 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-03-27 23:18 [PATCH RFC 0/7] regulator: new APIs for voltage reference supplies David Lechner
2024-03-27 23:18 ` [PATCH RFC 1/7] regulator: devres: add APIs for " David Lechner
2024-03-28 13:47 ` Jonathan Cameron
2024-03-28 15:54 ` David Lechner
2024-03-28 18:03 ` Dmitry Torokhov
2024-03-28 18:18 ` Mark Brown
2024-03-28 20:17 ` Dmitry Torokhov
2024-03-28 20:25 ` Mark Brown
2024-03-30 16:02 ` Jonathan Cameron
2024-03-27 23:18 ` [PATCH RFC 2/7] hwmon: (adc128d818) Use devm_regulator_get_optional_enable_get_voltage() David Lechner
2024-03-28 14:05 ` Jonathan Cameron
2024-03-27 23:18 ` [PATCH RFC 3/7] hwmon: (da9052) Use devm_regulator_get_enable_get_voltage() David Lechner
2024-03-28 14:20 ` Jonathan Cameron
2024-03-28 15:20 ` Guenter Roeck
2024-03-28 15:53 ` Jonathan Cameron
2024-03-27 23:18 ` [PATCH RFC 4/7] iio: addac: ad74115: " David Lechner
2024-03-28 13:58 ` Jonathan Cameron
2024-03-27 23:18 ` David Lechner [this message]
2024-03-28 13:51 ` [PATCH RFC 5/7] iio: frequency: admv1013: " Jonathan Cameron
2024-03-27 23:18 ` [PATCH RFC 6/7] staging: iio: impedance-analyzer: " David Lechner
2024-03-28 13:50 ` Jonathan Cameron
2024-03-27 23:18 ` [PATCH RFC 7/7] Input: mpr121: " David Lechner
2024-03-28 14:21 ` Jonathan Cameron
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