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Commit 0157a9cc authored by Hartmut Hackmann's avatar Hartmut Hackmann Committed by Mauro Carvalho Chehab
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V4L/DVB (3303): TDA8290 update 



This patch
- works around a bug in the I2C bridge that makes the initialization
  of the TDA10046 fail on recent LifeView cards
- puts the AGC output to tristate in sleep mode. This is necessary for
  recent hybrid cards that switch the AGC via tristateing.

Signed-off-by: default avatarHartmut <Hackmann&lt;hartmut.hackmann@t-online.de>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@infradead.org>
parent 3d8466ec

drivers/media/video/tda8290.c

+6 −2
Original line number Diff line number Diff line
@@ -281,7 +281,7 @@ static void tda827xa_agcf(struct i2c_client *c) 
static void tda8290_i2c_bridge(struct i2c_client *c, int close)

{

	unsigned char  enable[2] = { 0x21, 0xC0 };

	unsigned char disable[2] = { 0x21, 0x80 };

	unsigned char disable[2] = { 0x21, 0x00 };

	unsigned char *msg;

	if(close) {

		msg = enable;
@@ -302,6 +302,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) 
	unsigned char soft_reset[]  = { 0x00, 0x00 };

	unsigned char easy_mode[]   = { 0x01, t->tda8290_easy_mode };

	unsigned char expert_mode[] = { 0x01, 0x80 };

	unsigned char agc_out_on[]  = { 0x02, 0x00 };

	unsigned char gainset_off[] = { 0x28, 0x14 };

	unsigned char if_agc_spd[]  = { 0x0f, 0x88 };

	unsigned char adc_head_6[]  = { 0x05, 0x04 };
@@ -320,6 +321,7 @@ static int tda8290_tune(struct i2c_client *c, u16 ifc, unsigned int freq) 
		      pll_stat;



	i2c_master_send(c, easy_mode, 2);

	i2c_master_send(c, agc_out_on, 2);

	i2c_master_send(c, soft_reset, 2);

	msleep(1);
@@ -470,6 +472,7 @@ static void standby(struct i2c_client *c) 
	struct tuner *t = i2c_get_clientdata(c);

	unsigned char cb1[] = { 0x30, 0xD0 };

	unsigned char tda8290_standby[] = { 0x00, 0x02 };

	unsigned char tda8290_agc_tri[] = { 0x02, 0x20 };

	struct i2c_msg msg = {.addr = t->tda827x_addr, .flags=0, .buf=cb1, .len = 2};



	tda8290_i2c_bridge(c, 1);
@@ -477,6 +480,7 @@ static void standby(struct i2c_client *c) 
		cb1[1] = 0x90;

	i2c_transfer(c->adapter, &msg, 1);

	tda8290_i2c_bridge(c, 0);

	i2c_master_send(c, tda8290_agc_tri, 2);

	i2c_master_send(c, tda8290_standby, 2);

}
@@ -565,7 +569,7 @@ int tda8290_init(struct i2c_client *c) 
		strlcpy(c->name, "tda8290+75a", sizeof(c->name));

		t->tda827x_ver = 2;

	}

	tuner_info("tuner: type set to %s\n", c->name);

	tuner_info("type set to %s\n", c->name);



	t->set_tv_freq    = set_tv_freq;

	t->set_radio_freq = set_radio_freq;