Commit Graph

20180 Commits

Author SHA1 Message Date
Andrea Arcangeli
7e33912849 mm: gup: use get_user_pages_unlocked
This allows those get_user_pages calls to pass FAULT_FLAG_ALLOW_RETRY to
the page fault in order to release the mmap_sem during the I/O.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Reviewed-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Andres Lagar-Cavilla <andreslc@google.com>
Cc: Peter Feiner <pfeiner@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-02-11 17:06:05 -08:00
Joe Perches
4bad5d2d25 [media] dvb_net: Convert local hex dump to print_hex_dump_debug
Use the generic facility instead of a home-grown one.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:24:44 -02:00
Joe Perches
5c7c0ca02f [media] dvb_net: Use standard debugging facilities
Convert dprintk to netdev_dbg where appropriate.
Remove dvb_net_debug module_param.
Remove __func__ from output as that can be added by dynamic_debug.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:24:29 -02:00
Joe Perches
be87b90f8c [media] dvb_net: Use vsprintf %pM extension to print Ethernet addresses
No need for more macros, so remove them and use the kernel extension.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:23:58 -02:00
Martin Kepplinger
2948c01c2b [media] stb0899: use sign_extend32() for sign extension
Instead of implement its own logic, use the already-defined one.

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:16:18 -02:00
Olli Salonen
17d4d6ae09 [media] si2168: add support for 1.7MHz bandwidth
This patch is based on Antti's silabs branch.

Add support for 1.7 MHz bandwidth. Supported in all versions of Si2168 according to short data sheets.

[mchehab@osg.samsung.com: Fix CodingStyle]
Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:13:12 -02:00
Olli Salonen
683e98b602 [media] si2168: return error if set_frontend is called with invalid parameters
This patch should is based on Antti's silabs branch.

According to dvb-frontend.h set_frontend may be called with bandwidth_hz set to 0 if automatic bandwidth is required. Si2168 does not support automatic bandwidth and does not declare FE_CAN_BANDWIDTH_AUTO in caps.

This patch will change the behaviour in a way that EINVAL is returned if bandwidth_hz is 0.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Reviewed-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 18:12:46 -02:00
Andy Shevchenko
3656cddd50 [media] lirc_dev: avoid potential null-dereference
We have to check pointer for NULL and then dereference it.

Signed-off-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:33:42 -02:00
Akihiro Tsukada
e601044212 [media] dvb: tc90522: re-add symbol-rate report
symbol-rate report was wrongly removed off by the commit:906aaf5a .

Signed-off-by: Akihiro Tsukada <tskd08@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:16:52 -02:00
Malcolm Priestley
8716901384 [media] lmedm04: add read snr, signal strength and ber call backs
This allows calling the original functions providing the streaming is off.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:16:33 -02:00
Malcolm Priestley
743ab6a1cc [media] lmedm04: Create frontend call back for read status
Create dm04_read_status to check lock through either interrupt values
or directly by the call back.

When the device is not streaming the frontends original call back is
used. When streaming has started it turns off I2C messaging by
setting st->i2c_talk_onoff to zero. I2C can only be turn on again
by one of the other allowed frontend calls.

All old code is removed from lme2510_msg and this function only needs
to set st->i2c_talk_onoff to 1.

The lock status is saved and when the frondend is locked is maintained
by lme2510_int_response who will now just kill the lock.

The call back for rs2000 tuner is nologer required.

All frontend types have been tested.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:16:13 -02:00
Malcolm Priestley
d8bad1e2ab [media] lmedm04: create frontend callbacks for signal/snr/ber/ucblocks
Create call backs dm04_read_signal_strength, dm04_read_snr and
move dm04_read_ber and dm04_read_ucblocks for all frontends

Removing the I2C filtering from lme2510_msg and the old rs2000 callbacks.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:15:29 -02:00
Malcolm Priestley
15e1ce3318 [media] lmedm04: Fix usb_submit_urb BOGUS urb xfer, pipe 1 != type 3 in interrupt urb
A quirk of some older firmwares that report endpoint pipe type as PIPE_BULK
but the endpoint otheriwse functions as interrupt.

Check if usb_endpoint_type is USB_ENDPOINT_XFER_BULK and set as usb_rcvbulkpipe.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:14:42 -02:00
Malcolm Priestley
cfcd7b8258 [media] lmedm04: Increase Interupt due time to 200 msec
Ocassionally the device fails to report back an interrupt urb status which
results in false no lock trigger on the RS2000 demodulator.

Increase time from 60 msecs to 200 msecs.

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Cc: <stable@vger.kernel.org> # v3.17+
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:14:00 -02:00
Mauro Carvalho Chehab
86c330fa59 [media] cx88-dvb: whitespace cleanup
X-Patchwork-Delegate: m.chehab@samsung.com
Fix the following smatch warning:
	drivers/media/pci/cx88//cx88-dvb.c:1508 dvb_register() warn: if statement not indented

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 17:12:12 -02:00
Mauro Carvalho Chehab
e181b1f190 [media] rtl28xxu: properly initialize pdata
As complained by smatch:
	drivers/media/usb/dvb-usb-v2/rtl28xxu.c:1159 rtl2832u_tuner_attach() info: 'pdata' is not actually initialized (unreached code).

Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:38:48 -02:00
Mauro Carvalho Chehab
bda977b731 [media] rtl2832: declare functions as static
drivers/media/dvb-frontends/rtl2832.c:157:5: warning: no previous prototype for ‘rtl2832_bulk_write’ [-Wmissing-prototypes]
 int rtl2832_bulk_write(struct i2c_client *client, unsigned int reg,
     ^
drivers/media/dvb-frontends/rtl2832.c:169:5: warning: no previous prototype for ‘rtl2832_update_bits’ [-Wmissing-prototypes]
 int rtl2832_update_bits(struct i2c_client *client, unsigned int reg,
     ^
drivers/media/dvb-frontends/rtl2832.c:181:5: warning: no previous prototype for ‘rtl2832_bulk_read’ [-Wmissing-prototypes]
 int rtl2832_bulk_read(struct i2c_client *client, unsigned int reg, void *val,

Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:38:43 -02:00
Mauro Carvalho Chehab
d858b0e787 [media] rtl2830: declare functions as static
drivers/media/dvb-frontends/rtl2830.c:21:5: warning: no previous prototype for ‘rtl2830_bulk_write’ [-Wmissing-prototypes]
 int rtl2830_bulk_write(struct i2c_client *client, unsigned int reg,
     ^
drivers/media/dvb-frontends/rtl2830.c:33:5: warning: no previous prototype for ‘rtl2830_update_bits’ [-Wmissing-prototypes]
 int rtl2830_update_bits(struct i2c_client *client, unsigned int reg,
     ^
drivers/media/dvb-frontends/rtl2830.c:45:5: warning: no previous prototype for ‘rtl2830_bulk_read’ [-Wmissing-prototypes]
 int rtl2830_bulk_read(struct i2c_client *client, unsigned int reg, void *val,
     ^

Cc: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:38:29 -02:00
Antti Palosaari
cecc589620 [media] rtl2832_sdr: add kernel-doc comments for platform_data
Add kernel-doc comments for platform_data configuration structure.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:31:01 -02:00
Antti Palosaari
2f74b7c2f8 [media] rtl2832: add kernel-doc comments for platform_data
Add kernel-doc comments for platform_data configuration structure.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:30:47 -02:00
Antti Palosaari
61c309ffcd [media] rtl2830: add kernel-doc comments for platform_data
Add kernel-doc comments for platform_data configuration structure.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:30:26 -02:00
Antti Palosaari
b410dae43c [media] rtl2832: implement own lock for regmap
Introduce own lock to silence lockdep warning. lockdep validator
makes wrong decision when two similar (&map->mutex) locks were taken
recursively, even those are different mutexes in a two different
drivers. After that patch, functionality remains same, but mutex names
are different. That is a temporary hack, proper solution is make
regmap aware of locked nested locking rules.

=============================================
[ INFO: possible recursive locking detected ]
3.18.0-rc4+ #4 Tainted: G           O
---------------------------------------------
kdvb-ad-0-fe-0/2814 is trying to acquire lock:
 (&map->mutex){+.+.+.}, at: [<ffffffff814ec90f>] regmap_lock_mutex+0x2f/0x40

but task is already holding lock:
 (&map->mutex){+.+.+.}, at: [<ffffffff814ec90f>] regmap_lock_mutex+0x2f/0x40

other info that might help us debug this:
 Possible unsafe locking scenario:
       CPU0
       ----
  lock(&map->mutex);
  lock(&map->mutex);

 *** DEADLOCK ***
 May be due to missing lock nesting notation
1 lock held by kdvb-ad-0-fe-0/2814:
 #0:  (&map->mutex){+.+.+.}, at: [<ffffffff814ec90f>] regmap_lock_mutex+0x2f/0x40

stack backtrace:
CPU: 3 PID: 2814 Comm: kdvb-ad-0-fe-0 Tainted: G           O 3.18.0-rc4+ #4
Hardware name: System manufacturer System Product Name/M5A78L-M/USB3, BIOS 2001    09/11/2014
 0000000000000000 00000000410c8772 ffff880293af3868 ffffffff817a6f82
 0000000000000000 ffff8800b3462be0 ffff880293af3968 ffffffff810e7f94
 ffff880293af3888 00000000410c8772 ffffffff82dfee60 ffffffff81ab8f89
Call Trace:
 [<ffffffff817a6f82>] dump_stack+0x4e/0x68
 [<ffffffff810e7f94>] __lock_acquire+0x1ea4/0x1f50
 [<ffffffff810e2a7d>] ? trace_hardirqs_off+0xd/0x10
 [<ffffffff817b01f3>] ? _raw_spin_lock_irqsave+0x83/0xa0
 [<ffffffff810e13e6>] ? up+0x16/0x50
 [<ffffffff810e2a7d>] ? trace_hardirqs_off+0xd/0x10
 [<ffffffff817af8bf>] ? _raw_spin_unlock_irqrestore+0x5f/0x70
 [<ffffffff810e9069>] lock_acquire+0xc9/0x170
 [<ffffffff814ec90f>] ? regmap_lock_mutex+0x2f/0x40
 [<ffffffff817ab50e>] mutex_lock_nested+0x7e/0x430
 [<ffffffff814ec90f>] ? regmap_lock_mutex+0x2f/0x40
 [<ffffffff814ec90f>] ? regmap_lock_mutex+0x2f/0x40
 [<ffffffff817a530b>] ? printk+0x70/0x86
 [<ffffffff8110d9e8>] ? mod_timer+0x168/0x240
 [<ffffffff814ec90f>] regmap_lock_mutex+0x2f/0x40
 [<ffffffff814f08d9>] regmap_update_bits+0x29/0x60
 [<ffffffffa03e9778>] rtl2832_select+0x38/0x70 [rtl2832]
 [<ffffffffa039b03d>] i2c_mux_master_xfer+0x3d/0x90 [i2c_mux]
 [<ffffffff815da493>] __i2c_transfer+0x73/0x2e0
 [<ffffffff815dbaba>] i2c_transfer+0x5a/0xc0
 [<ffffffff815dbb6e>] i2c_master_send+0x4e/0x70
 [<ffffffffa03ff25a>] regmap_i2c_write+0x1a/0x50 [regmap_i2c]
 [<ffffffff817ab713>] ? mutex_lock_nested+0x283/0x430
 [<ffffffff814f06b2>] _regmap_raw_write+0x862/0x880
 [<ffffffff814ec90f>] ? regmap_lock_mutex+0x2f/0x40
 [<ffffffff814f0744>] _regmap_bus_raw_write+0x74/0xa0
 [<ffffffff814ef3d2>] _regmap_write+0x92/0x140
 [<ffffffff814f0b7b>] regmap_write+0x4b/0x70
 [<ffffffffa032b090>] ? dvb_frontend_release+0x110/0x110 [dvb_core]
 [<ffffffffa05141d4>] e4000_init+0x34/0x210 [e4000]
 [<ffffffffa032a029>] dvb_frontend_init+0x59/0xc0 [dvb_core]
 [<ffffffff810bde30>] ? finish_task_switch+0x80/0x180
 [<ffffffff810bddf2>] ? finish_task_switch+0x42/0x180
 [<ffffffffa032b116>] dvb_frontend_thread+0x86/0x7b0 [dvb_core]
 [<ffffffff817a9203>] ? __schedule+0x343/0x930
 [<ffffffffa032b090>] ? dvb_frontend_release+0x110/0x110 [dvb_core]
 [<ffffffff810b826b>] kthread+0x10b/0x130
 [<ffffffff81020099>] ? sched_clock+0x9/0x10
 [<ffffffff810b8160>] ? kthread_create_on_node+0x250/0x250
 [<ffffffff817b063c>] ret_from_fork+0x7c/0xb0
 [<ffffffff810b8160>] ? kthread_create_on_node+0x250/0x250

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:28:12 -02:00
Antti Palosaari
670ef05f82 [media] rtl28xxu: correct reg access routine name prefixes
Use rtl28xxu_ prefix for all register access routine names.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:27:33 -02:00
Antti Palosaari
723abfd787 [media] rtl28xxu: merge rtl2831u and rtl2832u properties
As all the callbacks are already same we could merge device
properties struct too and save space.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:27:04 -02:00
Antti Palosaari
de701f0ff1 [media] rtl28xxu: merge chip type specific all callbacks
Merge all chip type specific prefixed (rtl2831u_ and rtl2832u_)
callback to top level callback prefixed as rtl28xxu_.

rtl2831u_foo() => rtl28xxu_foo()
rtl2832u_foo() => rtl28xxu_foo()

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:26:37 -02:00
Antti Palosaari
d0f232e823 [media] rtl28xxu: add heuristic to detect chip type
Detect automatically whether chip is old RTL2831U or newer
RTL2832U/RTL2832P. Detection is based I2C command that is found only
from newer RTL2832U models.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:25:24 -02:00
Antti Palosaari
c56222a6b2 [media] rtl28xxu: move usb buffers to state
Buffer needed for USB control message is small so move it to state
and get rid of alloc/free used for each control message.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:24:49 -02:00
Antti Palosaari
5ba4ca1a14 [media] rtl28xxu: fix logging
Pass correct device pointer to dev_* logging in order to print
module name and bus id correctly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:24:15 -02:00
Antti Palosaari
9a02e8fdef [media] rtl28xxu: rename state variable 'priv' to 'dev'
I prefer dev over priv and I want keep all my drivers in line with
that.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:23:58 -02:00
Antti Palosaari
0d117901b6 [media] rtl2832: remove internal mux I2C adapter
There was 2 muxed I2C adapters, one for demod tuner bus and one for
internal use. Idea of internal I2C adapter was to force I2C repeater
close when demod access its registers. Driver has also delayed work
queue based method to close I2C repeater.

After regmap conversion internal I2C adapter based repeater close
left unused - only work queue method was in use. We could not use
internal mux adapter method with regmap as it makes recursive regmap
call, which causes deadlock as regmap has own locking. Due to that
remove whole method totally.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:23:09 -02:00
Antti Palosaari
d5eec231be [media] rtl2832_sdr: refcount to rtl28xxu
We are consumer of DVB frontend provided by rtl28xxu module. Due to
that we must use refcount to ensure none could remove rtl28xxu when
we are alive (or when we are streaming, if more fine-grained
refcounting is wanted).

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:22:24 -02:00
Antti Palosaari
6a53fa2350 [media] rtl28xxu: do not refcount rtl2832_sdr module
This driver, rtl28xxu, offers frontend service for rtl2832_sdr
module, thus we are producer and rtl2832_sdr module is consumer.
Due to that, reference counting should be done in way rtl2832_sdr
takes refrence to rtl28xxu. Remove wrong refcount.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:21:48 -02:00
Antti Palosaari
a6f62431a0 [media] rtl28xxu: simplify FE callback handling
Logic is so simple that there is no idea to separate tuner selection to
own function, instead do it in a callback and get rid of one function.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:21:19 -02:00
Antti Palosaari
1dbbdceeb6 [media] rtl28xxu: fix DVB FE callback
DVB FE callback functionality went broken after I moved tuners to
demod muxed I2C adapter. That happens because driver state was
carried by I2C adapter and when mux is used there is one adapter
more in a chain.
USB adapter <-> I2C adapter <-> muxed I2C adapter

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:20:46 -02:00
Antti Palosaari
a08c378119 [media] rtl2832: implement sleep
Put demod to soft reset in order to save power when sleep. That drops
power usage ~30mA @5V on USB dongle I tested. In real life it does
not matter much as USB IF powers off demod too, but now it is done
twice - demod and USB IF.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:20:02 -02:00
Antti Palosaari
75c24005ee [media] rtl2832: claim copyright and module author
I have implemented tons of things for that driver, more than anyone
else, so lets claim copyright and module authorship.

Cc: Thomas Mair <thomas.mair86@gmail.com>
Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:19:24 -02:00
Antti Palosaari
cd559e0b13 [media] rtl2832: cleanups and minor changes
Remove all the stuff that is not needed anymore. Rename variable.
Remove extra new lines.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:18:51 -02:00
Antti Palosaari
3bda2bf1f8 [media] rtl2832_sdr: cleanups
Small cleanups. Remove unneeded variables. Some checkpatch issues.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:18:03 -02:00
Antti Palosaari
e4e78693a1 [media] rtl2832_sdr: fix logging
Pass correct device, platform device, for logging system in order
to format printouts correctly.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:17:24 -02:00
Antti Palosaari
488be13a5e [media] rtl28xxu: use master I2C adapter for slave demods
Both mn88472 and mn88473 slave demods are connected to master I2C
bus, not the bus behind master demod I2C gate like tuners. Use
correct bus.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:16:47 -02:00
Antti Palosaari
a2f7f220df [media] rtl28xxu: switch SDR module to platform driver
RTL2832 SDR module implements kernel platform driver. Change old
binding to that one.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:16:17 -02:00
Antti Palosaari
63bdab5d31 [media] rtl2832_sdr: convert to platform driver
That SDR driver module was abusing DVB frontend SEC (satellite
equipment controller) device and due to that it was also using
legacy DVB binding. Platform bus is pseudo-bus provided by kernel
driver model and it fits cases like that, where any other busses
are not suitable.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:15:43 -02:00
Antti Palosaari
725b7f3046 [media] rtl2832_sdr: rename state variable from 's' to 'dev'
'dev' sounds better than 's' for such variable.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:13:17 -02:00
Antti Palosaari
0aa32ef9b3 [media] rtl2832: provide register IO callbacks
Provide register read and write callbacks for SDR module.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:12:34 -02:00
Antti Palosaari
eec21beb35 [media] rtl2832: merge reg page as a part of reg address
Chips uses 8-bit register addresses with 5 pages. Extend register
address by using register page as a first byte of address, defining
virtual register addresses. That is common method of handling
register pages and regmap also uses it. Remove page + address
conversion glue which was there for regmap.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:12:07 -02:00
Antti Palosaari
5e5d52a00f [media] rtl2832: remove unneeded software reset from init()
There is no need to do software reset on init() as it is done a bit
later on end of set_frontend(). Software reset usually means
restarting (resetting to starting point) chip internal state machine
(FSM). Naturally it is done after all parameters are programmed.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:11:17 -02:00
Antti Palosaari
dcadb82a7a [media] rtl2832: use regmap reg cache
Enable regmap register cache in order to reduce IO.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:10:54 -02:00
Antti Palosaari
e20b0cf2f3 [media] rtl28xxu: add support for RTL2832U/RTL2832 PID filter
RTL2832 demod integrated into RTL2832U has PID filter. PID filtering
is provided by rtl2832 demod driver. Add support for it.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:10:19 -02:00
Antti Palosaari
4b01e01a81 [media] rtl2832: implement PID filter
Implement PID filter. This demod has PID filter size of 32 PIDs.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:09:56 -02:00
Antti Palosaari
1c7da405c6 [media] rtl2832: define more demod lock statuses
Demod lock flags are derived from demod state machine states. States
are running from 1 to 11, where highest state 11 means demod is
fully locked and streaming. Naturally smaller state numbers means
there is some partial locks.

Define now state 10 as missing synch and lock.

Signed-off-by: Antti Palosaari <crope@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-02-03 16:09:19 -02:00