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[media] mt2063: Print a message about the detected mt2063 type

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This also helps to identify when a device is not initialized,
if the bridge doesn't return an error for a I2C failed transfer.

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Mauro Carvalho Chehab 2011-07-22 21:24:33 -03:00
parent 1b0bfee39d
commit 19ad6a01bb
1 changed files with 22 additions and 4 deletions
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26
drivers/media/common/tuners/mt2063.c
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@ -1790,6 +1790,7 @@ static int mt2063_init(struct dvb_frontend *fe)
struct mt2063_state *state = fe->tuner_priv;
u8 all_resets = 0xF0; /* reset/load bits */
const u8 *def = NULL;
char *step;
u32 FCRUN;
s32 maxReads;
u32 fcu_osc;
@ -1807,10 +1808,24 @@ static int mt2063_init(struct dvb_frontend *fe)
}
/* Check the part/rev code */
if (((state->reg[MT2063_REG_PART_REV] != MT2063_B0) /* MT2063 B0 */
&& (state->reg[MT2063_REG_PART_REV] != MT2063_B1) /* MT2063 B1 */
&& (state->reg[MT2063_REG_PART_REV] != MT2063_B3))) /* MT2063 B3 */
switch (state->reg[MT2063_REG_PART_REV]) {
case MT2063_B0:
step = "B0";
break;
case MT2063_B1:
step = "B1";
break;
case MT2063_B2:
step = "B2";
break;
case MT2063_B3:
step = "B3";
break;
default:
printk(KERN_ERR "mt2063: Unknown mt2063 device ID (0x%02x)\n",
state->reg[MT2063_REG_PART_REV]);
return -ENODEV; /* Wrong tuner Part/Rev code */
}
/* Check the 2nd byte of the Part/Rev code from the tuner */
status = mt2063_read(state, MT2063_REG_RSVD_3B,
@ -1818,10 +1833,13 @@ static int mt2063_init(struct dvb_frontend *fe)
/* b7 != 0 ==> NOT MT2063 */
if (status < 0 || ((state->reg[MT2063_REG_RSVD_3B] & 0x80) != 0x00)) {
printk(KERN_ERR "Can't read mt2063 2nd part ID\n");
printk(KERN_ERR "mt2063: Unknown 2nd part ID\n");
return -ENODEV; /* Wrong tuner Part/Rev code */
}
dprintk(1, "Discovered a mt2063 %s (2nd part number 0x%02x)\n",
step, state->reg[MT2063_REG_RSVD_3B]);
/* Reset the tuner */
status = mt2063_write(state, MT2063_REG_LO2CQ_3, &all_resets, 1);
if (status < 0)