diff options
| -rw-r--r-- | drivers/staging/media/mn88472/mn88472.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/staging/media/mn88472/mn88472.c b/drivers/staging/media/mn88472/mn88472.c index 6f0cac4..85ef4f6 100644 --- a/drivers/staging/media/mn88472/mn88472.c +++ b/drivers/staging/media/mn88472/mn88472.c @@ -258,6 +258,7 @@ static int mn88472_init(struct dvb_frontend *fe) int ret, len, remaining; const struct firmware *fw = NULL; u8 *fw_file = MN88472_FIRMWARE; + unsigned int csum; dev_dbg(&client->dev, "\n"); @@ -303,6 +304,20 @@ static int mn88472_init(struct dvb_frontend *fe) } } + /* parity check of firmware */ + ret = regmap_read(dev->regmap[0], 0xf8, &csum); + if (ret) { + dev_err(&client->dev, + "parity reg read failed=%d\n", ret); + goto err; + } + if (csum & 0x10) { + dev_err(&client->dev, + "firmware parity check failed=0x%x\n", csum); + goto err; + } + dev_err(&client->dev, "firmware parity check succeeded=0x%x\n", csum); + ret = regmap_write(dev->regmap[0], 0xf5, 0x00); if (ret) goto firmware_release; |
