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authorRandy Dunlap <randy.dunlap@oracle.com>2009-11-10 09:04:28 -0800
committerGreg Kroah-Hartman <gregkh@suse.de>2009-12-11 12:23:18 -0800
commitd5f5d89f0a48930436dba9735fda4663e7b55ed2 (patch)
tree6a1a8f39914c352819533369eddc54f59013584f /drivers/staging/iio
parent76e407980728123223fac5c2e8273bc6e7e43cfd (diff)
Staging: iio: fix ring buffer build
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@oracle.com> Signed-off-by: Jonathan Cameron <jic23@cam.ac.uk>
Diffstat (limited to 'drivers/staging/iio')
-rw-r--r--drivers/staging/iio/adc/Kconfig9
-rw-r--r--drivers/staging/iio/adc/Makefile2
-rw-r--r--drivers/staging/iio/adc/max1363.h6
3 files changed, 13 insertions, 4 deletions
diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig
index a2f1626eab4..3989c0ca0e0 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 0c2b6f39e8c..08cee5c22b9 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 8aca81f14d0..c112fbef270 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_ */