With linux/acpi.h no longer implicitly including of.h, add an explicit include of of.h to fix the following error: drivers/iio/adc/ad7292.c:307:9: error: implicit declaration of function 'for_each_available_child_of_node'; did you mean 'fwnode_for_each_available_child_node'? [-Werror=implicit-function-declaration] Acked-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx> Acked-by: Marcelo Schmitt <marcelo.schmitt1@xxxxxxxxx> Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx> Reviewed-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Rob Herring <robh@xxxxxxxxxx> --- drivers/iio/adc/ad7292.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/adc/ad7292.c b/drivers/iio/adc/ad7292.c index a2f9fda25ff3..cccacec5db6d 100644 --- a/drivers/iio/adc/ad7292.c +++ b/drivers/iio/adc/ad7292.c @@ -8,6 +8,7 @@ #include <linux/bitfield.h> #include <linux/device.h> #include <linux/module.h> +#include <linux/of.h> #include <linux/regulator/consumer.h> #include <linux/spi/spi.h> -- 2.39.2