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| author | Maxim Kochetkov <fido_max@inbox.ru> | 2020-08-03 08:04:05 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2020-08-22 13:38:44 +0300 |
| commit | e71e6dbe96ac80ac2aebe71a6a942e7bd60e7596 (patch) | |
| tree | d28b52c009d63a6e532f9f127c5beb1702d7d210 /drivers/iio/adc/ti-ads1015.c | |
| parent | ab3300deff6a81cc10887437383fc8a63884c3f9 (diff) | |
| download | linux-e71e6dbe96ac80ac2aebe71a6a942e7bd60e7596.tar.xz | |
iio: adc: ti-ads1015: fix conversion when CONFIG_PM is not set
To stop conversion ads1015_set_power_state() function call unimplemented
function __pm_runtime_suspend() from pm_runtime_put_autosuspend()
if CONFIG_PM is not set.
In case of CONFIG_PM is not set: __pm_runtime_suspend() returns -ENOSYS,
so ads1015_read_raw() failed because ads1015_set_power_state() returns an
error.
If CONFIG_PM is disabled, there is no need to start/stop conversion.
Fix it by adding return 0 function variant if CONFIG_PM is not set.
Signed-off-by: Maxim Kochetkov <fido_max@inbox.ru>
Fixes: ecc24e72f437 ("iio: adc: Add TI ADS1015 ADC driver support")
Tested-by: Maxim Kiselev <bigunclemax@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc/ti-ads1015.c')
| -rw-r--r-- | drivers/iio/adc/ti-ads1015.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/iio/adc/ti-ads1015.c b/drivers/iio/adc/ti-ads1015.c index f42ab112986e..9fef39bcf997 100644 --- a/drivers/iio/adc/ti-ads1015.c +++ b/drivers/iio/adc/ti-ads1015.c @@ -316,6 +316,7 @@ static const struct iio_chan_spec ads1115_channels[] = { IIO_CHAN_SOFT_TIMESTAMP(ADS1015_TIMESTAMP), }; +#ifdef CONFIG_PM static int ads1015_set_power_state(struct ads1015_data *data, bool on) { int ret; @@ -333,6 +334,15 @@ static int ads1015_set_power_state(struct ads1015_data *data, bool on) return ret < 0 ? ret : 0; } +#else /* !CONFIG_PM */ + +static int ads1015_set_power_state(struct ads1015_data *data, bool on) +{ + return 0; +} + +#endif /* !CONFIG_PM */ + static int ads1015_get_adc_result(struct ads1015_data *data, int chan, int *val) { |