linux-toradex.git/drivers/media/dvb-frontends, branch v3.10.71

media: ds3000: fix LNB supply voltage on Tevii S480 on initialization

2014-11-14T16:47:56+00:00

commit 8c5bcded11cb607b1bb5920de3b9c882136d27db upstream.

The Tevii S480 outputs 18V on startup for the LNB supply voltage and does not
automatically power down. This blocks other receivers connected
to a satellite channel router (EN50494), since the receivers can not send the
required DiSEqC sequences when the Tevii card is connected to a the same SCR.

This patch switches off the LNB supply voltage on initialization of the frontend.

[mchehab@osg.samsung.com: add a comment about why we're explicitly
 turning off voltage at device init]
Signed-off-by: Ulrich Eckhardt 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

media: tda10071: force modulation to QPSK on DVB-S

2014-07-31T19:53:48+00:00

commit db4175ae2095634dbecd4c847da439f9c83e1b3b upstream.

Only supported modulation for DVB-S is QPSK. Modulation parameter
contains invalid value for DVB-S on some cases, which leads driver
refusing tuning attempt. Due to that, hard code modulation to QPSK
in case of DVB-S.

Signed-off-by: Antti Palosaari 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

media: m88rs2000: add caps FE_CAN_INVERSION_AUTO

2014-05-06T14:55:31+00:00

commit 3c8023a782964c72574ad8268ba0ea4e2d9772fc upstream.

The m88rs2000 frontend is always auto inversion.

Signed-off-by: Malcolm Priestley 
Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

media: m88rs2000: prevent frontend crash on continuous transponder scans

2014-05-06T14:55:31+00:00

commit 8272d0a0c0d374a01721e579df6e8add5577132b upstream.

Add m88rs2000_get_tune_settings, min delay of 2000 ms on symbol
rate more than 3000000 and delay of 3000ms less than this.

Adding min delay prevents crashing the frontend on continuous
transponder scans. Other dvb_frontend_tune_settings remain as default.

This makes very little time difference to good channel scans, but slows down
the set frontend where lock can never be achieved i.e. DVB-S2.

Signed-off-by: Malcolm Priestley 
Signed-off-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

m88rs2000: set symbol rate accurately

2014-02-13T21:48:02+00:00

commit dd4491dfb9eb4fa3bfa7dc73ba989e69fbce2e10 upstream.

Current setting of symbol rate is not very actuate causing
loss of lock.

Covert temp to u64 and use mclk to calculate from big number.

Calculate symbol rate by dividing symbol rate by 1000 times
1 << 24 and dividing sum by mclk.

Add other symbol rate settings to function registers 0xa0-0xa3.

In set_frontend add changes to register 0xf1 this must be done
prior call to fe_reset. Register 0x00 doesn't need a second
write of 0x1

Applied after patch
m88rs2000: add m88rs2000_set_carrieroffset

Signed-off-by: Malcolm Priestley 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

m88rs2000: add m88rs2000_set_carrieroffset

2014-02-13T21:48:02+00:00

commit 06af15d1b6f45c60358feab88004472e5428f01c upstream.

Set the carrier offset correctly using the default mclk values.

Add function m88rs2000_get_mclk to calculate the mclk value
against crystal frequency which will later be used for
other functions.

Add function m88rs2000_set_carrieroffset to calculate
and set the offset value.

variable offset becomes a signed value.

Register 0x86 is set the appropriate value according to
remainder value of frequency % 192857 calculation as
shown.

Signed-off-by: Malcolm Priestley 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

dib8000: fix regression with dib807x

2014-02-13T21:48:02+00:00

commit d67350f8c4e67f5eba627e1fd111f16257ca9c95 upstream.

Commit 173a64cb3fcf broke support for some dib807x versions.

Fix it by providing backward compatibility with the older versions.

[mkrufky@linuxtv.org: conflict handling and CodingStyle fixes]

Signed-off-by: Olivier Grenie 
Acked-by: Patrick Boettcher 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

nxt200x: increase write buffer size

2014-02-13T21:48:02+00:00

commit fa1e1de6bb679f2c86da3311bbafee7eaf78f125 upstream.

The buffer size on nxt200x is not enough:

	...
	> Dec 20 10:52:04 rich kernel: [   31.747949] nxt200x: nxt200x_writebytes: i2c wr reg=002c: len=255 is too big!
	...

Increase it to 256 bytes.

Reported-by: Rich Freeman 
Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Greg Kroah-Hartman

dib8000: make 32 bits read atomic

2014-02-13T21:48:02+00:00

commit 5ac64ba12aca3bef18e61c866583155a3bbf81c4 upstream.

As the dvb-frontend kthread can be called anytime, it can race
with some get status ioctl. So, it seems better to avoid one to
race with the other while reading a 32 bits register.
I can't see any other reason for having a mutex there at I2C, except
to provide such kind of protection, as the I2C core already has a
mutex to protect I2C transfers.

Note: instead of this approach, it could eventually remove the dib8000
specific mutex for it, and either group the 4 ops into one xfer or
to manually control the I2C mutex. The main advantage of the current
approach is that the changes are smaller and more puntual.

Signed-off-by: Mauro Carvalho Chehab 
Signed-off-by: Mauro Carvalho Chehab 
Acked-by: Patrick Boettcher 
Signed-off-by: Greg Kroah-Hartman

cxd2820r_core: fix sparse warnings

2013-12-20T15:45:11+00:00

commit 0db3fa2741ad8371c21b3a6785416a4afc0cc1d4 upstream.

drivers/media/dvb-frontends/cxd2820r_core.c:34:32: error: cannot size expression
drivers/media/dvb-frontends/cxd2820r_core.c:68:32: error: cannot size expression

Signed-off-by: Hans Verkuil 
Acked-by: Antti Palosaari 
Reviewed-by: Antti Palosaari 
Reviewed-by: Michael Krufky 
Signed-off-by: Mauro Carvalho Chehab 
Cc: Frederik Himpe 
Signed-off-by: Greg Kroah-Hartman