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iio: humidity: hts221: Use EXPORT_SIMPLE_DEV_PM_OPS() to allow compiler to remove dead code.

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If CONFIG_PM_SLEEP is not defined using EXPORT_SIMPLE_DEV_PM_OPS()
in conjunction with pm_sleep_ptr() allows the compiler to remove
the unused code and data. This removes the need for __maybe_unused
markings etc.

Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220220181522.541718-6-jic23@kernel.org
Acked-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/20220604161223.461847-3-jic23@kernel.org
This commit is contained in:
Jonathan Cameron 2022-06-04 17:12:20 +01:00
parent cb490b10c3
commit 2129f25de5
3 changed files with 5 additions and 8 deletions
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9
drivers/iio/humidity/hts221_core.c
View File

@ -670,7 +670,7 @@ int hts221_probe(struct device *dev, int irq, const char *name,
}
EXPORT_SYMBOL(hts221_probe);
static int __maybe_unused hts221_suspend(struct device *dev)
static int hts221_suspend(struct device *dev)
{
struct iio_dev *iio_dev = dev_get_drvdata(dev);
struct hts221_hw *hw = iio_priv(iio_dev);
@ -680,7 +680,7 @@ static int __maybe_unused hts221_suspend(struct device *dev)
FIELD_PREP(HTS221_ENABLE_MASK, false));
}
static int __maybe_unused hts221_resume(struct device *dev)
static int hts221_resume(struct device *dev)
{
struct iio_dev *iio_dev = dev_get_drvdata(dev);
struct hts221_hw *hw = iio_priv(iio_dev);
@ -694,10 +694,7 @@ static int __maybe_unused hts221_resume(struct device *dev)
return err;
}
const struct dev_pm_ops hts221_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(hts221_suspend, hts221_resume)
};
EXPORT_SYMBOL(hts221_pm_ops);
EXPORT_SIMPLE_DEV_PM_OPS(hts221_pm_ops, hts221_suspend, hts221_resume);
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
MODULE_DESCRIPTION("STMicroelectronics hts221 sensor driver");

2
drivers/iio/humidity/hts221_i2c.c
View File

@ -62,7 +62,7 @@ MODULE_DEVICE_TABLE(i2c, hts221_i2c_id_table);
static struct i2c_driver hts221_driver = {
.driver = {
.name = "hts221_i2c",
.pm = &hts221_pm_ops,
.pm = pm_sleep_ptr(&hts221_pm_ops),
.of_match_table = hts221_i2c_of_match,
.acpi_match_table = ACPI_PTR(hts221_acpi_match),
},

2
drivers/iio/humidity/hts221_spi.c
View File

@ -55,7 +55,7 @@ MODULE_DEVICE_TABLE(spi, hts221_spi_id_table);
static struct spi_driver hts221_driver = {
.driver = {
.name = "hts221_spi",
.pm = &hts221_pm_ops,
.pm = pm_sleep_ptr(&hts221_pm_ops),
.of_match_table = hts221_spi_of_match,
},
.probe = hts221_spi_probe,