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: Hartmut Hackmann<hartmut.hackmann@t-online.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>

diff --git a/drivers/media/video/tda8290.c b/drivers/media/video/tda8290.c
index 7b4fb282ac82332fd2df6f78c1a7954fbb1a9e16..2b954b3d2ba65a81981a642b8bffdd554d889345 100644 (file)
--- a/drivers/media/video/tda8290.c
+++ b/drivers/media/video/tda8290.c
@@ -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;