redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

[media] mn88472: implement firmware parity check

Browse source 
Signed-off-by: Benjamin Larsson <benjamin@southpole.se>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Benjamin Larsson 2015-03-15 19:57:51 -03:00 committed by Mauro Carvalho Chehab
parent ba6d6d8a06
commit 307e95c922
1 changed files with 15 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
drivers/staging/media/mn88472/mn88472.c
View file

@ -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;