diff options
| author |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-09-14 10:23:20 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2010-05-18 00:40:06 -0300 |
| commit | 2d5024a9e97337874d8d7aa1d6a54ed1c917c5a0 (patch) | |
| tree | 33d022a4a27f4d09732381a537b66a98744f4812 /drivers/media/common | |
| parent | V4L/DVB (12824): tuner-xc2028: adds an option to send i2c data on slower speed (diff) | |
| download | linux-dev-2d5024a9e97337874d8d7aa1d6a54ed1c917c5a0.tar.xz linux-dev-2d5024a9e97337874d8d7aa1d6a54ed1c917c5a0.zip | |
V4L/DVB (12825): tm6000: I2C reading operations is not reliable on tm6000
tm6000 sometimes can't read from i2c, but this is currently required for
tuner-xc2028 to work.
This patch adds an option to tuner-xc2028 to not rely on i2c reading.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/common')
| -rw-r--r-- | drivers/media/common/tuners/tuner-xc2028.c | 10 | ||||
| -rw-r--r-- | drivers/media/common/tuners/tuner-xc2028.h | 1 |
2 files changed, 9 insertions, 2 deletions
diff --git a/drivers/media/common/tuners/tuner-xc2028.c b/drivers/media/common/tuners/tuner-xc2028.c index 8d2907f38a94..53f0fbb33cc6 100644 --- a/drivers/media/common/tuners/tuner-xc2028.c +++ b/drivers/media/common/tuners/tuner-xc2028.c @@ -813,8 +813,14 @@ check_device: /* Check firmware version against what we downloaded. */ if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) { - tuner_err("Incorrect readback of firmware version.\n"); - goto fail; + if (!priv->ctrl.read_not_reliable) { + tuner_err("Incorrect readback of firmware version.\n"); + goto fail; + } else { + tuner_err("Returned an incorrect version. However, " + "read is not reliable enough. Ignoring it.\n"); + hwmodel = 3028; + } } /* Check that the tuner hardware model remains consistent over time. */ diff --git a/drivers/media/common/tuners/tuner-xc2028.h b/drivers/media/common/tuners/tuner-xc2028.h index e116071810e0..9778c96a5006 100644 --- a/drivers/media/common/tuners/tuner-xc2028.h +++ b/drivers/media/common/tuners/tuner-xc2028.h @@ -40,6 +40,7 @@ struct xc2028_ctrl { unsigned int vhfbw7:1; unsigned int uhfbw8:1; unsigned int disable_power_mgmt:1; + unsigned int read_not_reliable:1; unsigned int demod; enum firmware_type type:2; }; |