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Subject[PATCH v3 07/14] iio: ltc2688: Simplify using devm_regulator_*get_enable()
Use devm_regulator_bulk_get_enable() instead of open coded bulk-get,
bulk-enable, add-action-to-disable-at-detach - pattern.

Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com>

---
v2 => v3
Split to own patch.
---
drivers/iio/dac/ltc2688.c | 23 +++--------------------
1 file changed, 3 insertions(+), 20 deletions(-)

diff --git a/drivers/iio/dac/ltc2688.c b/drivers/iio/dac/ltc2688.c
index 28bdde2d3088..fcad3efe62ea 100644
--- a/drivers/iio/dac/ltc2688.c
+++ b/drivers/iio/dac/ltc2688.c
@@ -84,7 +84,6 @@ struct ltc2688_chan {
struct ltc2688_state {
struct spi_device *spi;
struct regmap *regmap;
- struct regulator_bulk_data regulators[2];
struct ltc2688_chan channels[LTC2688_DAC_CHANNELS];
struct iio_chan_spec *iio_chan;
/* lock to protect against multiple access to the device and shared data */
@@ -902,13 +901,6 @@ static int ltc2688_setup(struct ltc2688_state *st, struct regulator *vref)
LTC2688_CONFIG_EXT_REF);
}

-static void ltc2688_disable_regulators(void *data)
-{
- struct ltc2688_state *st = data;
-
- regulator_bulk_disable(ARRAY_SIZE(st->regulators), st->regulators);
-}
-
static void ltc2688_disable_regulator(void *regulator)
{
regulator_disable(regulator);
@@ -970,6 +962,7 @@ static int ltc2688_probe(struct spi_device *spi)
struct regulator *vref_reg;
struct device *dev = &spi->dev;
int ret;
+ static const char * const regulators[] = {"vcc", "iovcc"};

indio_dev = devm_iio_device_alloc(dev, sizeof(*st));
if (!indio_dev)
@@ -988,21 +981,11 @@ static int ltc2688_probe(struct spi_device *spi)
return dev_err_probe(dev, PTR_ERR(st->regmap),
"Failed to init regmap");

- st->regulators[0].supply = "vcc";
- st->regulators[1].supply = "iovcc";
- ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(st->regulators),
- st->regulators);
- if (ret)
- return dev_err_probe(dev, ret, "Failed to get regulators\n");
-
- ret = regulator_bulk_enable(ARRAY_SIZE(st->regulators), st->regulators);
+ ret = devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(regulators),
+ regulators);
if (ret)
return dev_err_probe(dev, ret, "Failed to enable regulators\n");

- ret = devm_add_action_or_reset(dev, ltc2688_disable_regulators, st);
- if (ret)
- return ret;
-
vref_reg = devm_regulator_get_optional(dev, "vref");
if (IS_ERR(vref_reg)) {
if (PTR_ERR(vref_reg) != -ENODEV)
--
2.37.1

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]
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