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V4L/DVB (4533): Tda9887: add configuration setting for L standard PLL gating 

Add a tuner config parameter for TDA9887, default_pll_gating_18, that
changes the L standard PLL gating value from 36% to 0% (datasheet says
0%, tda9887 code says 18%).
Turn this on for Microtune 4049FM5, as recomended by tuner datasheet.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Trent Piepho 2006-08-24 22:43:45 -03:00 committed by Mauro Carvalho Chehab
parent 62a7b3e2ad
commit d7304dee3b
5 changed files with 9 additions and 0 deletions
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2
drivers/media/video/tda9887.c
View File

@ -480,6 +480,8 @@ static int tda9887_set_config(struct tuner *t, char *buf)
}
if ((t->tda9887_config & TDA9887_INTERCARRIER_NTSC) && (t->std & V4L2_STD_NTSC))
buf[1] &= ~cQSS;
if (t->tda9887_config & TDA9887_GATING_18)
buf[3] &= ~cGating_36;
return 0;
}

2
drivers/media/video/tuner-simple.c
View File

@ -331,6 +331,8 @@ static void default_set_tv_freq(struct i2c_client *c, unsigned int freq)
else if (params->default_top_high)
config |= TDA9887_TOP(params->default_top_high);
}
if (params->default_pll_gating_18)
config |= TDA9887_GATING_18;
i2c_clients_command(c->adapter, TDA9887_SET_CONFIG, &config);
}
tuner_dbg("tv 0x%02x 0x%02x 0x%02x 0x%02x\n",

1
drivers/media/video/tuner-types.c
View File

@ -650,6 +650,7 @@ static struct tuner_params tuner_microtune_4049_fm5_params[] = {
.count = ARRAY_SIZE(tuner_temic_4009f_5_pal_ranges),
.has_tda9887 = 1,
.port1_invert_for_secam_lc = 1,
.default_pll_gating_18 = 1,
},
};

3
include/media/tuner-types.h
View File

@ -72,6 +72,9 @@ struct tuner_params {
unsigned int port2_invert_for_secam_lc:1;
/* Some cards require PORT1 to be 1 for mono Radio FM and 0 for stereo. */
unsigned int port1_set_for_fm_mono:1;
/* Select 18% (or according to datasheet 0%) L standard PLL gating,
vs the driver default of 36%. */
unsigned int default_pll_gating_18:1;
/* Default tda9887 TOP value in dB for the low band. Default is 0.
Range: -16:+15 */
signed int default_top_low:5;

1
include/media/tuner.h
View File

@ -144,6 +144,7 @@ extern int tuner_debug;
#define TDA9887_DEEMPHASIS_50 (2<<16)
#define TDA9887_DEEMPHASIS_75 (3<<16)
#define TDA9887_AUTOMUTE (1<<18)
#define TDA9887_GATING_18 (1<<19)
#ifdef __KERNEL__