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| author | Patrick Boettcher <pb@linuxtv.org> | 2009-02-28 10:19:30 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-03-30 12:43:47 -0300 |
| commit | 1662070a593b5a862b5bf8c843ebfab0deb058a6 (patch) | |
| tree | e6636c48e4503ef8b6069c09a77285f2666055b7 | |
| parent | aef822074b88397968560b650a9f4bdbf973e2b3 (diff) | |
| download | kernel-crypto-1662070a593b5a862b5bf8c843ebfab0deb058a6.tar.gz kernel-crypto-1662070a593b5a862b5bf8c843ebfab0deb058a6.tar.xz kernel-crypto-1662070a593b5a862b5bf8c843ebfab0deb058a6.zip | |
V4L/DVB (11284): Fix i2c code of flexcop-driver for rare revisions
This patch adds a workaround in the i2c-code of the flexcop-driver to
fix support for SkyStar2 rev 2.7. There are not many devices out
there, that's why this bug was not revealed earlier.
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
| -rw-r--r-- | drivers/media/dvb/b2c2/flexcop-i2c.c | 12 | ||||
| -rw-r--r-- | drivers/media/dvb/frontends/itd1000_priv.h | 2 |
2 files changed, 13 insertions, 1 deletions
diff --git a/drivers/media/dvb/b2c2/flexcop-i2c.c b/drivers/media/dvb/b2c2/flexcop-i2c.c index f13783f08f0..a0cfde18e64 100644 --- a/drivers/media/dvb/b2c2/flexcop-i2c.c +++ b/drivers/media/dvb/b2c2/flexcop-i2c.c @@ -47,6 +47,18 @@ static int flexcop_i2c_read4(struct flexcop_i2c_adapter *i2c, int len = r100.tw_sm_c_100.total_bytes, /* remember total_bytes is buflen-1 */ ret; + /* work-around to have CableStar2 and SkyStar2 rev 2.7 work + * correctly: + * + * the ITD1000 is behind an i2c-gate which closes automatically + * after an i2c-transaction the STV0297 needs 2 consecutive reads + * one with no_base_addr = 0 and one with 1 + * + * those two work-arounds are conflictin: we check for the card + * type, it is set when probing the ITD1000 */ + if (i2c->fc->dev_type == FC_SKY_REV27) + 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"); diff --git a/drivers/media/dvb/frontends/itd1000_priv.h b/drivers/media/dvb/frontends/itd1000_priv.h index 8cdc54e5790..08ca851223c 100644 --- a/drivers/media/dvb/frontends/itd1000_priv.h +++ b/drivers/media/dvb/frontends/itd1000_priv.h @@ -31,7 +31,7 @@ struct itd1000_state { /* ugly workaround for flexcop's incapable i2c-controller * FIXME, if possible */ - u8 shadow[255]; + u8 shadow[256]; }; enum itd1000_register { |