It seems that currently the firmware download on the mn88472 is
somehow wrong for my Astrometa HD-901T2.
Reducing the download chunk size (mn88472_config.i2c_wr_max) to 2
makes the firmware download consistently succeed.
Any larger value causes the download to always fail:
[ 7.671482] mn88472 7-0018: downloading firmware from file 'dvb-demod-mn88472-02.fw'
[ 8.206960] mn88472 7-0018: firmware download failed=-32
[ 8.208610] rtl2832 7-0010: i2c reg write failed -32
[ 8.208620] r820t 8-003a: r820t_write: i2c wr failed=-32 reg=05 len=1: 83
[ 8.210459] rtl2832 7-0010: i2c reg write failed -32
[ 8.212038] rtl2832 7-0010: i2c reg write failed -32
I'm obviously not too happy about this patch as it slows down the
firmware download but I have not found a way to keep larger chunks in
place and have a working firmware download at the same time.
Signed-off-by: Antti Seppälä <a.seppala@xxxxxxxxx>
---
drivers/media/usb/dvb-usb-v2/rtl28xxu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
index d88f799..3c5c6f9 100644
--- a/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
+++ b/drivers/media/usb/dvb-usb-v2/rtl28xxu.c
@@ -865,7 +865,7 @@ static int rtl2832u_frontend_attach(struct dvb_usb_adapter *adap)
struct mn88472_config mn88472_config = {};
mn88472_config.fe = &adap->fe[1];
- mn88472_config.i2c_wr_max = 22,
+ mn88472_config.i2c_wr_max = 2,
strlcpy(info.type, "mn88472", I2C_NAME_SIZE);
mn88472_config.xtal = 20500000;
info.addr = 0x18;
--
2.0.5
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
