media: lirc: remove unused feature LIRC_CAN_SET_REC_DUTY_CYCLE

There is no hardware which can filter input on the duty cycle, so no
driver implements this. On top of that, LIRC_CAN_SET_REC_DUTY_CYCLE
has the same value as LIRC_CAN_MEASURE_CARRIER (0x02000000).

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

diff --git a/Documentation/userspace-api/media/lirc.h.rst.exceptions b/Documentation/userspace-api/media/lirc.h.rst.exceptions
index 5f31e96..913d17b 100644 (file)
--- a/Documentation/userspace-api/media/lirc.h.rst.exceptions
+++ b/Documentation/userspace-api/media/lirc.h.rst.exceptions
@@ -30,7 +30,6 @@ ignore define LIRC_CAN_REC
 
 ignore define LIRC_CAN_SEND_MASK
 ignore define LIRC_CAN_REC_MASK
-ignore define LIRC_CAN_SET_REC_DUTY_CYCLE
 
 # Obsolete ioctls
 

diff --git a/include/uapi/linux/lirc.h b/include/uapi/linux/lirc.h
index 21c69a6..23b0f2c 100644 (file)
--- a/include/uapi/linux/lirc.h
+++ b/include/uapi/linux/lirc.h
@@ -73,7 +73,6 @@
 #define LIRC_CAN_REC_MASK              LIRC_MODE2REC(LIRC_CAN_SEND_MASK)
 
 #define LIRC_CAN_SET_REC_CARRIER       (LIRC_CAN_SET_SEND_CARRIER << 16)
-#define LIRC_CAN_SET_REC_DUTY_CYCLE    (LIRC_CAN_SET_SEND_DUTY_CYCLE << 16)
 
 #define LIRC_CAN_SET_REC_CARRIER_RANGE    0x80000000
 #define LIRC_CAN_GET_REC_RESOLUTION       0x20000000