media: rc: decoders do not need to check for transitions

Drivers should never produce consecutive pulse or space raw events. Should
that occur, we would have bigger problems than this code is trying to
guard against.

Note that we already log an error should a driver misbehave.

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

diff --git a/drivers/media/rc/ir-mce_kbd-decoder.c b/drivers/media/rc/ir-mce_kbd-decoder.c
index 9574c3d..64ea429 100644 (file)
--- a/drivers/media/rc/ir-mce_kbd-decoder.c
+++ b/drivers/media/rc/ir-mce_kbd-decoder.c
@@ -274,9 +274,6 @@ again:
                return 0;
 
        case STATE_HEADER_BIT_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev))
-                       break;
-
                decrease_duration(&ev, MCIR2_BIT_END);
 
                if (data->count != MCIR2_HEADER_NBITS) {
@@ -313,9 +310,6 @@ again:
                return 0;
 
        case STATE_BODY_BIT_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev))
-                       break;
-
                if (data->count == data->wanted_bits)
                        data->state = STATE_FINISHED;
                else

diff --git a/drivers/media/rc/ir-rc5-decoder.c b/drivers/media/rc/ir-rc5-decoder.c
index cbfaadb..6362465 100644 (file)
--- a/drivers/media/rc/ir-rc5-decoder.c
+++ b/drivers/media/rc/ir-rc5-decoder.c
@@ -88,9 +88,6 @@ again:
                return 0;
 
        case STATE_BIT_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev))
-                       break;
-
                if (data->count == CHECK_RC5X_NBITS)
                        data->state = STATE_CHECK_RC5X;
                else

diff --git a/drivers/media/rc/ir-rc6-decoder.c b/drivers/media/rc/ir-rc6-decoder.c
index 66e0710..68487ce 100644 (file)
--- a/drivers/media/rc/ir-rc6-decoder.c
+++ b/drivers/media/rc/ir-rc6-decoder.c
@@ -145,9 +145,6 @@ again:
                return 0;
 
        case STATE_HEADER_BIT_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev))
-                       break;
-
                if (data->count == RC6_HEADER_NBITS)
                        data->state = STATE_TOGGLE_START;
                else
@@ -165,10 +162,6 @@ again:
                return 0;
 
        case STATE_TOGGLE_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev) ||
-                   !geq_margin(ev.duration, RC6_TOGGLE_END, RC6_UNIT / 2))
-                       break;
-
                if (!(data->header & RC6_STARTBIT_MASK)) {
                        dev_dbg(&dev->dev, "RC6 invalid start bit\n");
                        break;
@@ -210,9 +203,6 @@ again:
                break;
 
        case STATE_BODY_BIT_END:
-               if (!is_transition(&ev, &dev->raw->prev_ev))
-                       break;
-
                if (data->count == data->wanted_bits)
                        data->state = STATE_FINISHED;
                else