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17 changes: 16 additions & 1 deletion drivers/media/dvb-frontends/m88rs6060.c
Original file line number Diff line number Diff line change
Expand Up @@ -3359,7 +3359,22 @@ static int m88rs6060_ready(struct m88rs6060_dev *dev)

dev_dbg(&dev->base->i2c->dev, "%s", __func__);

//reset the harware;
/*
* Only run the cold-boot sequence when the chip is actually cold; if it's
* already warm, leave it alone.
*/
ret = regmap_read(dev->regmap, 0xb9, &val);
if (!ret && val) {
dev_info(&i2c->dev, "found a '%s' already in warm state\n",
dev->fe.ops.info.name);
dev_info(&i2c->dev, "firmware version:%X\n", val);
m88res6060_set_ts_mode(dev);
regmap_read(dev->regmap, 0x4d, &val);
regmap_write(dev->regmap, 0x4d, val & 0xfd);
return 0;
}

//reset the hardware and wake up the demod and tuner;
m88rs6060_hard_rest(dev);

/* cold state - try to download firmware */
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