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authorAlexandru Ardelean <alexandru.ardelean@analog.com>2020-09-30 15:50:47 +0200
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2020-10-10 18:04:58 +0200
commitf091d7c5fe6cc39e916b50f90e3cac67a032d0be (patch)
tree2ab83019f724eaab818731a19e17a7c836db8463 /drivers/iio/adc
parentiio: adc: at91_adc: const-ify some driver data (diff)
downloadlinux-f091d7c5fe6cc39e916b50f90e3cac67a032d0be.tar.xz
linux-f091d7c5fe6cc39e916b50f90e3cac67a032d0be.zip
iio: adc: at91_adc: add Kconfig dep on the OF symbol and remove of_match_ptr()
This tries to solve a warning reported by the lkp bot: >> drivers/iio/adc/at91_adc.c:1439:34: warning: unused variable >> 'at91_adc_dt_ids' [-Wunused-const-variable] static const struct of_device_id at91_adc_dt_ids[] = { ^ 1 warning generated. This warning has appeared after the AT91_ADC driver compilation has been enabled via the COMPILE_TEST symbol dependency. The warning is caused by the 'of_match_ptr()' helper which returns NULL if OF is undefined. This driver should build only for device-tree context, so a dependency on the OF Kconfig symbol has been added. Also, the usage of of_match_ptr() helper has been removed since it shouldn't ever return NULL (because the driver should not be built for the non-OF context). Fixes: 4027860dcc4c ("iio: Kconfig: at91_adc: add COMPILE_TEST dependency to driver") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/20200930135048.11530-4-alexandru.ardelean@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/adc')
-rw-r--r--drivers/iio/adc/Kconfig2
-rw-r--r--drivers/iio/adc/at91_adc.c2
2 files changed, 2 insertions, 2 deletions
diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig
index 91ae90514aff..17e9ceb9c6c4 100644
--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -295,7 +295,7 @@ config ASPEED_ADC
config AT91_ADC
tristate "Atmel AT91 ADC"
depends on ARCH_AT91 || COMPILE_TEST
- depends on INPUT && SYSFS
+ depends on INPUT && SYSFS && OF
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
diff --git a/drivers/iio/adc/at91_adc.c b/drivers/iio/adc/at91_adc.c
index 7d846a2852a5..473bffe84fbd 100644
--- a/drivers/iio/adc/at91_adc.c
+++ b/drivers/iio/adc/at91_adc.c
@@ -1466,7 +1466,7 @@ static struct platform_driver at91_adc_driver = {
.id_table = at91_adc_ids,
.driver = {
.name = DRIVER_NAME,
- .of_match_table = of_match_ptr(at91_adc_dt_ids),
+ .of_match_table = at91_adc_dt_ids,
.pm = &at91_adc_pm_ops,
},
};