From: Michael Ira Krufky <mkrufky@xxxxxxxxxxx>
Add support for controlling TP clock mode for VSB and QAM annex-B/C mode.
Gated clock mode is the default value, and does not support QAM annex-C.
The patch enables setting this control to fixed clock mode.
Signed-off-by: Michael Ira Krufky <mkrufky@xxxxxxxxxxx>
---
drivers/media/dvb-frontends/lgdt3305.c | 3 +++
drivers/media/dvb-frontends/lgdt3305.h | 6 ++++++
2 files changed, 9 insertions(+)
diff --git a/drivers/media/dvb-frontends/lgdt3305.c b/drivers/media/dvb-frontends/lgdt3305.c
index b42d649..873c63a 100644
--- a/drivers/media/dvb-frontends/lgdt3305.c
+++ b/drivers/media/dvb-frontends/lgdt3305.c
@@ -241,6 +241,7 @@ static int lgdt3305_mpeg_mode_polarity(struct lgdt3305_state *state)
u8 val;
int ret;
enum lgdt3305_tp_clock_edge edge = state->cfg->tpclk_edge;
+ enum lgdt3305_tp_clock_mode mode = state->cfg->tpclk_mode;
enum lgdt3305_tp_valid_polarity valid = state->cfg->tpvalid_polarity;
lg_dbg("edge = %d, valid = %d\n", edge, valid);
@@ -253,6 +254,8 @@ static int lgdt3305_mpeg_mode_polarity(struct lgdt3305_state *state)
if (edge)
val |= 0x08;
+ if (mode)
+ val |= 0x40;
if (valid)
val |= 0x01;
diff --git a/drivers/media/dvb-frontends/lgdt3305.h b/drivers/media/dvb-frontends/lgdt3305.h
index d9ab556..9c03e53 100644
--- a/drivers/media/dvb-frontends/lgdt3305.h
+++ b/drivers/media/dvb-frontends/lgdt3305.h
@@ -37,6 +37,11 @@ enum lgdt3305_tp_clock_edge {
LGDT3305_TPCLK_FALLING_EDGE = 1,
};
+enum lgdt3305_tp_clock_mode {
+ LGDT3305_TPCLK_GATED = 0,
+ LGDT3305_TPCLK_FIXED = 1,
+};
+
enum lgdt3305_tp_valid_polarity {
LGDT3305_TP_VALID_LOW = 0,
LGDT3305_TP_VALID_HIGH = 1,
@@ -70,6 +75,7 @@ struct lgdt3305_config {
enum lgdt3305_mpeg_mode mpeg_mode;
enum lgdt3305_tp_clock_edge tpclk_edge;
+ enum lgdt3305_tp_clock_mode tpclk_mode;
enum lgdt3305_tp_valid_polarity tpvalid_polarity;
enum lgdt_demod_chip_type demod_chip;
};
--
2.1.0
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