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authorMauro Carvalho Chehab <mchehab@redhat.com>2012-10-27 13:54:09 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-10-27 18:10:07 -0200
commit230dc94a2a6e5786b8529e3218979719758f1fa0 (patch)
treec7ecc101b417489bce65a338830edf315088eb9a
parent8e1803f4cd4bab0a66a24945a00e2c3a89457a32 (diff)
[media] nuvoton-cir: carrier detect support is broken - remove it
The carrier detect return value is never used on nuvoton driver: drivers/media/rc/nuvoton-cir.c: In function 'nvt_process_rx_ir_data': drivers/media/rc/nuvoton-cir.c:623:6: warning: variable 'carrier' set but not used [-Wunused-but-set-variable] Also, this would be called only if a boolean variable is enabled, but there's no condition that enables it inside the driver. So, comment the carrier detection code, as it might be useful later, and remove the unused glue code. Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
-rw-r--r--drivers/media/rc/nuvoton-cir.c7
-rw-r--r--drivers/media/rc/nuvoton-cir.h1
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index 44ba834c363..e4ea89a11ee 100644
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -472,6 +472,7 @@ static void nvt_enable_wake(struct nvt_dev *nvt)
nvt_cir_wake_reg_write(nvt, 0, CIR_WAKE_IREN);
}
+#if 0 /* Currently unused */
/* rx carrier detect only works in learning mode, must be called w/nvt_lock */
static u32 nvt_rx_carrier_detect(struct nvt_dev *nvt)
{
@@ -504,7 +505,7 @@ static u32 nvt_rx_carrier_detect(struct nvt_dev *nvt)
return carrier;
}
-
+#endif
/*
* set carrier frequency
*
@@ -620,7 +621,6 @@ static void nvt_dump_rx_buf(struct nvt_dev *nvt)
static void nvt_process_rx_ir_data(struct nvt_dev *nvt)
{
DEFINE_IR_RAW_EVENT(rawir);
- u32 carrier;
u8 sample;
int i;
@@ -629,9 +629,6 @@ static void nvt_process_rx_ir_data(struct nvt_dev *nvt)
if (debug)
nvt_dump_rx_buf(nvt);
- if (nvt->carrier_detect_enabled)
- carrier = nvt_rx_carrier_detect(nvt);
-
nvt_dbg_verbose("Processing buffer of len %d", nvt->pkts);
init_ir_raw_event(&rawir);
diff --git a/drivers/media/rc/nuvoton-cir.h b/drivers/media/rc/nuvoton-cir.h
index 0d5e0872a2e..7c3674ff5ea 100644
--- a/drivers/media/rc/nuvoton-cir.h
+++ b/drivers/media/rc/nuvoton-cir.h
@@ -103,7 +103,6 @@ struct nvt_dev {
/* rx settings */
bool learning_enabled;
- bool carrier_detect_enabled;
/* track cir wake state */
u8 wake_state;