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From: Matthias Schwarzott <zzam@gentoo.org>
Reducing the print-levle of I2C error prints cleans some unwanted but
unavoidable errors from default syslog-level.
Priority: normal
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
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From: Uwe Bugla <uwe.bugla@gmx.de>
This patch cleans up the source code of the b2c2 flexcop-driver. It is the first of a total of two.
The code is now passing the checkpatch-script.
Priority: normal
Signed-off-by: Uwe Bugla <uwe.bugla@gmx.de>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
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From: Patrick Boettcher <pb@linuxtv.org>
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.
Priority: high
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
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From: Antti Seppälä <a.seppala+linux-dvb@gmail.com>
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.
Priority: high
Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@redhat.com>
changeset 4ecae6da8244 removed algo_control from i2c drivers. However,
on older kernels, a dummy function to implement algo_control is required,
otherwise, an OOPS is generated.
This patch adds a backport for all i2c drivers that defines an
i2c_algorithm, except for cafe_ccic, since OLPC hardware only works
for kernels newer than 2.6.19.
Some of the backported drivers would need also extra changes to work with
older kernels, as specified on v4l/versions.txt. Yet, I decided to add
the backport for those drivers also, since the lack of algo_control doesn't
generate any compilation error, but it is enough to break the driver. So,
better to all for all boards than to allow compiling a kernel backported that
just generates OOPS.
Priority: normal
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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From: Jean Delvare <khali@linux-fr.org>
Some DVB drivers are incorrectly assuming that the size of
i2c_adapter.name is I2C_NAME_SIZE. Here's a fix.
Also change strncpy to strlcpy, as the former is error-prone (and was
indeed incorrectly used.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Uwe Bugla <uwe.bugla@gmx.de>
Reviewed-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Patrick Boettcher <pb@linuxtv.org>
To prepare the support for new device to the flexcop-family some preparation and cleanups was done + some saneness:
- created an i2c-adapter for each i2c-port available. Easier usage for devices with several device on different i2c-busses
- initialize i2c before doing the eeprom read
- changed the way to attach the different frontends, easier to read now
- enabled support for i2c-devices having no register address (1-byte access)
Signed-off-by: Patrick Boettcher <pb@linuxtv.org>
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From: Trent Piepho <xyzzy@speakeasy.org>
Git changeset 6bdcc6e6dbab8daffd05e5026486f34ba41a6c72 dropped the
stand-alone lgh06xf module, whose functionality was absorbed into the
dvb-pll module. However, there was a minor difference between the code
in lgh06xf and dvb-pll, which caused a regression in b2c2-flexcop
devices using the LG-H06xF NIM.
dvb-pll will probe for the presence of an i2c pll chip by performing a
single byte read, the lgh06xf driver did not do this. Unfortunately, the
code in flexcop-i2c.c does not currently support 1 byte or 0 byte reads
as a probe. Such probes with the current code will always fail.
In order to work around this problem, and restore proper functionality
of the Airstar HD5000 device, this hack was created to make the probe
appear to succeed. The single byte read in dvb_pll_attach is the only
place where such a probe would ever occur, so this change is safe, and
will not affect any other devices.
Of course, if one knew how to actually perform the read operation, it
would be better to go that route. In the meantime, however, we must
apply this workaround, in order to prevent the regression that causes
tuning to fail on the Airstar HD5000 ATSC device.
Thanks to Jarod Wilson, who had originally reported this regression, and
to Geoffrey Hausheer, whose original workaround patch led us to find the
actual cause of the problem.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Acked-by: Jarod Wilson <jwilson@redhat.com>
Cc: Geoffrey Hausheer <inli3epy93n@phracturedblue.com>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
backport commit 2096b956d24c4b5950b808fc23b218425d79ebb1 from David
Brownell <david-b@pacbell.net>
Maybe I've merged also other i2c cleanups here that happened on Kernel.
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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From: Mauro Carvalho Chehab <mchehab@infradead.org>
Backport changeset from Jean Delvare <khali@linux-fr.org> that declare
i2c_adapter parent devices.
kernel-sync:
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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Semaphore to mutex conversion.
The conversion was generated via scripts, and the result was validated
automatically via a script as well.
Kernel-sync from patch 3318b
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
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The name member of the i2c_algorithm is never used, although all
drivers conscientiously fill it. We can drop it completely, this
structure doesn't need to have a name.
[PATCH] I2C: Kill i2c_algorithm.id (4/7)
There are no more users of i2c_algorithm.id, so we can finally drop
this structure member.
[PATCH] I2C: Kill i2c_algorithm.id (6/7)
In theory, there should be no more users of I2C_ALGO_* at this point.
However, it happens that several drivers were using I2C_ALGO_* for
adapter ids, so we need to correct these before we can get rid of all
the I2C_ALGO_* definitions.
Note that this also fixes a bug in media/video/tvaudio.c:
/* don't attach on saa7146 based cards,
because dedicated drivers are used */
if ((adap->id & I2C_ALGO_SAA7146))
return 0;
This test was plain broken, as it would succeed for many more adapters
than just the saa7146: any those id would share at least one bit with
the saa7146 id. We are really lucky that the few other adapters we want
this driver to work with did not fulfill that condition.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
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inherited from the skystar2-driver)
- some minor cleanups
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- adapted build-2.6 (removed skystar2 from insmod.sh)
- corrected some bugs in Kconfig
- tried compilation with linux 2.6.11 (as module and as compiled-in-driver)
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