From: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
max1363 uses both the iio hardware ring buffer and software
ring buffer interfaces, but its Makefile and Kconfig do not
reflect that usage, so its build breaks. Add a new Kconfig
symbol to reflect that usage and change max1363.h & Makefile
to use the new Kconfig symbol.
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Signed-off-by: Jonathan Cameron <jic23@xxxxxxxxx>
---
drivers/staging/iio/adc/Kconfig | 9 +++++++++
drivers/staging/iio/adc/Makefile | 2 +-
drivers/staging/iio/adc/max1363.h | 6 +++---
3 files changed, 13 insertions(+), 4 deletions(-)
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index a2f1626..3989c0c 100644
--- a/drivers/staging/iio/adc/Kconfig
+++ b/drivers/staging/iio/adc/Kconfig
@@ -12,3 +12,12 @@ config MAX1363
convertors (ADC). (max1361, max1362, max1363, max1364, max1136,
max1136, max1137, max1138, max1139, max1236, max1237, max11238,
max1239) Provides direct access via sysfs.
+
+config MAX1363_RING_BUFFER
+ bool "MAXIM max1363: use ring buffer"
+ depends on MAX1363
+ select IIO_RING_BUFFER
+ select IIO_SW_RING
+ help
+ Say yes here to include ring buffer support in the MAX1363
+ ADC driver.
diff --git a/drivers/staging/iio/adc/Makefile b/drivers/staging/iio/adc/Makefile
index 0c2b6f3..08cee5c 100644
--- a/drivers/staging/iio/adc/Makefile
+++ b/drivers/staging/iio/adc/Makefile
@@ -3,6 +3,6 @@
#
max1363-y := max1363_core.o
-max1363-$(CONFIG_IIO_RING_BUFFER) += max1363_ring.o
+max1363-$(CONFIG_MAX1363_RING_BUFFER) += max1363_ring.o
obj-$(CONFIG_MAX1363) += max1363.o
diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h
index 8aca81f..c112fbe 100644
--- a/drivers/staging/iio/adc/max1363.h
+++ b/drivers/staging/iio/adc/max1363.h
@@ -228,7 +228,7 @@ struct max1363_state {
struct iio_trigger *trig;
struct regulator *reg;
};
-#ifdef CONFIG_IIO_RING_BUFFER
+#ifdef CONFIG_MAX1363_RING_BUFFER
ssize_t max1363_scan_from_ring(struct device *dev,
struct device_attribute *attr,
@@ -239,7 +239,7 @@ void max1363_ring_cleanup(struct iio_dev *indio_dev);
int max1363_initialize_ring(struct iio_ring_buffer *ring);
void max1363_uninitialize_ring(struct iio_ring_buffer *ring);
-#else /* CONFIG_IIO_RING_BUFFER */
+#else /* CONFIG_MAX1363_RING_BUFFER */
static inline void max1363_uninitialize_ring(struct iio_ring_buffer *ring)
{
@@ -265,5 +265,5 @@ max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev)
};
static inline void max1363_ring_cleanup(struct iio_dev *indio_dev) {};
-#endif /* CONFIG_IIO_RING_BUFFER */
+#endif /* CONFIG_MAX1363_RING_BUFFER */
#endif /* _MAX1363_H_ */
--
1.6.5.5
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