From: Alexandru Ardelean <alexandru.ardelean@analog.com>
To: <linux-iio@vger.kernel.org>, <linux-arm-kernel@lists.infradead.org>
Cc: <linux-kernel@vger.kernel.org>, <jic23@kernel.org>,
<nicolas.ferre@microchip.com>, <alexandre.belloni@bootlin.com>,
<ludovic.desroches@microchip.com>,
Alexandru Ardelean <alexandru.ardelean@analog.com>
Subject: [PATCH v4 3/4] iio: adc: at91_adc: add Kconfig dep on the OF symbol and remove of_match_ptr()
Date: Wed, 30 Sep 2020 16:50:47 +0300 [thread overview]
Message-ID: <20200930135048.11530-4-alexandru.ardelean@analog.com> (raw)
In-Reply-To: <20200930135048.11530-1-alexandru.ardelean@analog.com>
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>
Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>
---
drivers/iio/adc/Kconfig | 2 +-
drivers/iio/adc/at91_adc.c | 2 +-
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,
},
};
--
2.17.1
next prev parent reply other threads:[~2020-09-30 13:47 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-30 13:50 [PATCH v4 0/4] iio: adc: at91: misc driver cleanups Alexandru Ardelean
2020-09-30 13:50 ` [PATCH v4 1/4] iio: adc: at91_adc: use of_device_get_match_data() helper Alexandru Ardelean
2020-09-30 13:50 ` [PATCH v4 2/4] iio: adc: at91_adc: const-ify some driver data Alexandru Ardelean
2020-09-30 13:50 ` Alexandru Ardelean [this message]
2020-09-30 13:50 ` [PATCH v4 4/4] iio: adc: at91_adc: remove platform data and move defs in driver file Alexandru Ardelean
2020-09-30 14:05 ` Alexandre Belloni
2020-10-10 16:07 ` Jonathan Cameron
2020-10-10 16:05 ` [PATCH v4 0/4] iio: adc: at91: misc driver cleanups Jonathan Cameron
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