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yaml
---
r: 193087
b: refs/heads/master
c: 30d81bb
h: refs/heads/master
i:
  193085: 8d59e8e
  193083: 8ba988e
  193079: 290cb17
  193071: 9d53dfa
  193055: aecb8e7
  193023: d0e3a0d
v: v3
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Randy Dunlap authored and Mauro Carvalho Chehab committed May 19, 2010
1 parent 98dbd67 commit a86856e
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Showing 3 changed files with 26 additions and 17 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 84e2f037ce9672d0fb118e3e82cecfe6122ace3f
refs/heads/master: 30d81bb086c84d54cde4dd4d0c75d9455224632b
5 changes: 3 additions & 2 deletions trunk/drivers/media/dvb/dvb-usb/cxusb.c
Original file line number Diff line number Diff line change
Expand Up @@ -1025,8 +1025,9 @@ static int cxusb_dualdig4_rev2_frontend_attach(struct dvb_usb_adapter *adap)

cxusb_bluebird_gpio_pulse(adap->dev, 0x02, 1);

dib7000p_i2c_enumeration(&adap->dev->i2c_adap, 1, 18,
&cxusb_dualdig4_rev2_config);
if (dib7000p_i2c_enumeration(&adap->dev->i2c_adap, 1, 18,
&cxusb_dualdig4_rev2_config) < 0)
return -ENODEV;

adap->fe = dvb_attach(dib7000p_attach, &adap->dev->i2c_adap, 0x80,
&cxusb_dualdig4_rev2_config);
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36 changes: 22 additions & 14 deletions trunk/drivers/media/dvb/frontends/dib7000p.c
Original file line number Diff line number Diff line change
Expand Up @@ -1324,46 +1324,54 @@ EXPORT_SYMBOL(dib7000p_pid_filter);

int dib7000p_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods, u8 default_addr, struct dib7000p_config cfg[])
{
struct dib7000p_state st = { .i2c_adap = i2c };
struct dib7000p_state *dpst;
int k = 0;
u8 new_addr = 0;

dpst = kzalloc(sizeof(struct dib7000p_state), GFP_KERNEL);
if (!dpst)
return -ENODEV;

dpst->i2c_adap = i2c;

for (k = no_of_demods-1; k >= 0; k--) {
st.cfg = cfg[k];
dpst->cfg = cfg[k];

/* designated i2c address */
new_addr = (0x40 + k) << 1;
st.i2c_addr = new_addr;
dib7000p_write_word(&st, 1287, 0x0003); /* sram lead in, rdy */
if (dib7000p_identify(&st) != 0) {
st.i2c_addr = default_addr;
dib7000p_write_word(&st, 1287, 0x0003); /* sram lead in, rdy */
if (dib7000p_identify(&st) != 0) {
dpst->i2c_addr = new_addr;
dib7000p_write_word(dpst, 1287, 0x0003); /* sram lead in, rdy */
if (dib7000p_identify(dpst) != 0) {
dpst->i2c_addr = default_addr;
dib7000p_write_word(dpst, 1287, 0x0003); /* sram lead in, rdy */
if (dib7000p_identify(dpst) != 0) {
dprintk("DiB7000P #%d: not identified\n", k);
kfree(dpst);
return -EIO;
}
}

/* start diversity to pull_down div_str - just for i2c-enumeration */
dib7000p_set_output_mode(&st, OUTMODE_DIVERSITY);
dib7000p_set_output_mode(dpst, OUTMODE_DIVERSITY);

/* set new i2c address and force divstart */
dib7000p_write_word(&st, 1285, (new_addr << 2) | 0x2);
dib7000p_write_word(dpst, 1285, (new_addr << 2) | 0x2);

dprintk("IC %d initialized (to i2c_address 0x%x)", k, new_addr);
}

for (k = 0; k < no_of_demods; k++) {
st.cfg = cfg[k];
st.i2c_addr = (0x40 + k) << 1;
dpst->cfg = cfg[k];
dpst->i2c_addr = (0x40 + k) << 1;

// unforce divstr
dib7000p_write_word(&st, 1285, st.i2c_addr << 2);
dib7000p_write_word(dpst, 1285, dpst->i2c_addr << 2);

/* deactivate div - it was just for i2c-enumeration */
dib7000p_set_output_mode(&st, OUTMODE_HIGH_Z);
dib7000p_set_output_mode(dpst, OUTMODE_HIGH_Z);
}

kfree(dpst);
return 0;
}
EXPORT_SYMBOL(dib7000p_i2c_enumeration);
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