V4L/DVB (9781): [PATCH] Cablestar 2 I2C retries (fix CableStar2 support)
At some point the Flexcop driver was changed to support newer Flexcop cards.
These modifications however broke the detection of Cablestar 2 DVB-C cards.
The reason is that the earlier version of the driver used to retry
unsuccessful i2c operations. The demodulator of Cablestar 2 cards (stv0297)
seems to be very dependent on these retries and adding them back fixes
Cablestar detection.
This patch restores this behaviour for the CableStar2.
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
diff --git a/drivers/media/dvb/b2c2/flexcop-i2c.c b/drivers/media/dvb/b2c2/flexcop-i2c.c
index 43a112e..f13783f 100644
--- a/drivers/media/dvb/b2c2/flexcop-i2c.c
+++ b/drivers/media/dvb/b2c2/flexcop-i2c.c
@@ -47,9 +47,13 @@
int len = r100.tw_sm_c_100.total_bytes, /* remember total_bytes is buflen-1 */
ret;
- r100.tw_sm_c_100.no_base_addr_ack_error = i2c->no_base_addr;
ret = flexcop_i2c_operation(i2c->fc, &r100);
if (ret != 0) {
+ deb_i2c("Retrying operation\n");
+ r100.tw_sm_c_100.no_base_addr_ack_error = i2c->no_base_addr;
+ ret = flexcop_i2c_operation(i2c->fc, &r100);
+ }
+ if (ret != 0) {
deb_i2c("read failed. %d\n", ret);
return ret;
}