1> When m88ds3103 works in serial ts mode, its serial ts clock is equal to ts
master clock and the clock divider is bypassed.
2> The serial ts clock is configed by the bridge driver just like parallel ts
clock.
Signed-off-by: Nibble Max <nibble....@gmail.com>
---
drivers/media/dvb-frontends/m88ds3103.c | 55 +++++++++++++++------------------
1 file changed, 25 insertions(+), 30 deletions(-)
diff --git a/drivers/media/dvb-frontends/m88ds3103.c
b/drivers/media/dvb-frontends/m88ds3103.c
index 621d20f..0cd445c 100644
--- a/drivers/media/dvb-frontends/m88ds3103.c
+++ b/drivers/media/dvb-frontends/m88ds3103.c
@@ -245,9 +245,9 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
int ret, len;
const struct m88ds3103_reg_val *init;
- u8 u8tmp, u8tmp1, u8tmp2;
+ u8 u8tmp, u8tmp1 = 0, u8tmp2 = 0; /* silence compiler warning */
u8 buf[3];
- u16 u16tmp, divide_ratio;
+ u16 u16tmp, divide_ratio = 0;
u32 tuner_frequency, target_mclk;
s32 s32tmp;
@@ -319,32 +319,29 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
/* set M88DS3103 mclk and ts mclk. */
priv->mclk_khz = 96000;
- if (c->delivery_system == SYS_DVBS)
- target_mclk = 96000;
- else {
- switch (priv->cfg->ts_mode) {
- case M88DS3103_TS_SERIAL:
- case M88DS3103_TS_SERIAL_D7:
- if (c->symbol_rate < 18000000)
- target_mclk = 96000;
- else
- target_mclk = 144000;
- break;
- case M88DS3103_TS_PARALLEL:
- case M88DS3103_TS_CI:
+ switch (priv->cfg->ts_mode) {
+ case M88DS3103_TS_SERIAL:
+ case M88DS3103_TS_SERIAL_D7:
+ target_mclk = priv->cfg->ts_clk;
+ break;
+ case M88DS3103_TS_PARALLEL:
+ case M88DS3103_TS_CI:
+ if (c->delivery_system == SYS_DVBS)
+ target_mclk = 96000;
+ else {
if (c->symbol_rate < 18000000)
target_mclk = 96000;
else if (c->symbol_rate < 28000000)
target_mclk = 144000;
else
target_mclk = 192000;
- break;
- default:
- dev_dbg(&priv->i2c->dev, "%s: invalid
ts_mode\n",
- __func__);
- ret = -EINVAL;
- goto err;
}
+ break;
+ default:
+ dev_dbg(&priv->i2c->dev, "%s: invalid ts_mode\n",
+ __func__);
+ ret = -EINVAL;
+ goto err;
}
switch (target_mclk) {
@@ -434,7 +431,6 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
goto err;
}
- u8tmp1 = 0; /* silence compiler warning */
switch (priv->cfg->ts_mode) {
case M88DS3103_TS_SERIAL:
u8tmp1 = 0x00;
@@ -470,16 +466,15 @@ static int m88ds3103_set_frontend(struct dvb_frontend *fe)
ret = m88ds3103_wr_reg_mask(priv, 0x29, u8tmp1, 0x20);
if (ret)
goto err;
- }
-
- if (priv->cfg->ts_clk) {
- divide_ratio = DIV_ROUND_UP(target_mclk, priv->cfg->ts_clk);
- u8tmp1 = divide_ratio / 2;
- u8tmp2 = DIV_ROUND_UP(divide_ratio, 2);
- } else {
- divide_ratio = 0;
u8tmp1 = 0;
u8tmp2 = 0;
+ break;
+ default:
+ if (priv->cfg->ts_clk) {
+ divide_ratio = DIV_ROUND_UP(target_mclk,
priv->cfg->ts_clk);
+ u8tmp1 = divide_ratio / 2;
+ u8tmp2 = DIV_ROUND_UP(divide_ratio, 2);
+ }
}
dev_dbg(&priv->i2c->dev,
--
1.9.1
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