Commit Graph

28 Commits

Author SHA1 Message Date
Matthias Schwarzott
1b54da77f3 media: si2165: Convert debug printk to dev_dbg
Removed module parameter debug and the conditions based on it.
Now it can be configured via dynamic debug.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:31:57 -05:00
Matthias Schwarzott
77f887cdcd media: si2165: Remove redundant KBUILD_MODNAME from dev_* logging
Remove redundant repeated module name from messages.

Before:
  si2165 8-0064: si2165: fw load finished

After:
  si2165 8-0064: fw load finished

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-12-12 05:31:24 -05:00
Max Kellermann
bd336e6344 [media] dvb: make DVB frontend *_ops instances "const"
These are immutable.  Making them "const" allows the compiler to move
them to the "rodata" section.

Note that cxd2841er_t_c_ops cannot be made "const", because
cxd2841er_attach() modifies it.  Ouch!

[mchehab@s-opensource.com: fix merge conflicts]
Signed-off-by: Max Kellermann <max.kellermann@gmail.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-18 15:00:22 -02:00
Matthias Schwarzott
e3ea5e9448 [media] si2165: switch to regmap
This avoids some low-level operations.
It has the benefit that now register values van be read from /sys/kernel/debug/regmap
The maximum register value is just a guess - all higher addresses read as zero.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:56:35 -03:00
Matthias Schwarzott
aa15544909 [media] si2165: use i2c_client->dev instead of i2c_adapter->dev for logging
Now that there is a i2c_client, use the more specific dev for logging.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:56:15 -03:00
Matthias Schwarzott
81fd533a97 [media] si2165: Remove legacy attach
Now that all users of legacy attach are converted it can be removed.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:55:49 -03:00
Matthias Schwarzott
7cd785adc4 [media] si2165: support i2c_client attach
Afterwards it is possible to convert attaching in card drivers.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:54:00 -03:00
Matthias Schwarzott
2df9dda07f [media] si2165: avoid division by zero
When si2165_init fails, the clk values in state are still at zero.
But the dvb-core ignores the return value of init will call tune
afterwards.
This will trigger a division by zero when tuning.
At least check for the variables to be non-zero before dividing.

This happened for a system with WinTV HVR-4400 PCIe-card after suspend-to-disk.
Do suspend-to-disk without accessing the DVB device before.
After wakeup try to tune.
si2165_init fails at checking the chip_mode and aborts.
Then si2165_set_if_freq_shift will fail with div-by-zero.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:53:22 -03:00
Markus Elfring
c2e5c951c2 [media] si2165: Refactoring for si2165_writereg_mask8()
This issue was detected by using the Coccinelle software.

1. Let us return directly if a call of the si2165_readreg8()
   function failed.

2. Reduce the scope for the local variables "ret" and "tmp" to one branch
   of an if statement.

3. Delete the jump label "err" then.

4. Return the value from a call of the si2165_writereg8() function
   without using an extra assignment for the variable "ret" at the end.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:15:38 -02:00
Matthias Schwarzott
7655a3aea2 [media] si2165: Reject DVB-T bandwidth auto mode
The si2165 does not support bandwidth auto-detection.
Reject the request.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 12:51:32 -02:00
Linus Torvalds
7d1fc01afc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  floppy: make local variable non-static
  exynos: fixes an incorrect header guard
  dt-bindings: fixes some incorrect header guards
  cpufreq-dt: correct dead link in documentation
  cpufreq: ARM big LITTLE: correct dead link in documentation
  treewide: Fix typos in printk
  Documentation: filesystem: Fix typo in fs/eventfd.c
  fs/super.c: use && instead of & for warn_on condition
  Documentation: fix sysfs-ptp
  lib: scatterlist: fix Kconfig description
2016-01-14 17:04:19 -08:00
Masanari Iida
e3d132d123 treewide: Fix typos in printk
This patch fix multiple spelling typos found in
various part of kernel.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2015-12-08 14:59:19 +01:00
Matthias Schwarzott
94c1733468 [media] si2165: Add DVB-C support for HVR-4400/HVR-5500
It works only for HVR-4400/HVR-5500.
For WinTV-HVR-930C-HD it fails with bad/no reception
for unknown reasons.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:21:27 -02:00
Matthias Schwarzott
3b0c9807b7 [media] si2165: Prepare si2165_set_frontend() for future DVB-C support
The current si2165_set_frontend() function actually works only for DVB-T.
Split it into two functions, preparing the code to support DVB-C.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:19:57 -02:00
Matthias Schwarzott
25e7375309 [media] si2165: set list of DVB-T registers together
Use si2165_write_reg_list() to do the DVB-T mode initialization altogether.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:17:07 -02:00
Matthias Schwarzott
542fb3c56b [media] si2165: Simplify si2165_set_if_freq_shift usage
si2165_set_if_freq_shift() needs to call get_if_frequency() in order to do
the right shift. Add such logic inside the function, simplifying the logic
for the callers.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:10:12 -02:00
Matthias Schwarzott
75d62fc046 [media] si2165: move setting ts config to init
The TS config is fixed, so no need to write it for each tune.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:07:03 -02:00
Matthias Schwarzott
eae56684a0 [media] si2165: only write agc registers after reset before start_syncro
Datasheet says they must be rewritten after reset.
But it only makes sense to write them when trying to tune afterwards.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:06:16 -02:00
Matthias Schwarzott
a5293dbd70 [media] si2165: create function si2165_write_reg_list for writing register lists
It is common the need of writing a table of values. Add a function to provide a
helper to address such case. This will allow further code cleanups.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:03:23 -02:00
Matthias Schwarzott
c1c49674ea [media] si2165: rename si2165_set_parameters to si2165_set_frontend
No functional changes.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:01:31 -02:00
Matthias Schwarzott
d9a201df56 [media] si2165: rename frontend -> fe
No functional changes.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-03 12:00:54 -02:00
Matthias Schwarzott
18349f4009 [media] si2165: fix checkpatch issues
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:23:42 -02:00
Mauro Carvalho Chehab
0df289a209 [media] dvb: Get rid of typedev usage for enums
The DVB API was originally defined using typedefs. This is against
Kernel CodingStyle, and there's no good usage here. While we can't
remove its usage on userspace, we can avoid its usage in Kernelspace.

So, let's do it.

This patch was generated by this shell script:

	for j in $(grep typedef include/uapi/linux/dvb/frontend.h |cut -d' ' -f 3); do for i in $(find drivers/media -name '*.[ch]' -type f) $(find drivers/staging/media -name '*.[ch]' -type f); do sed "s,${j}_t,enum $j," <$i >a && mv a $i; done; done

While here, make CodingStyle fixes on the affected lines.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> # for drivers/media/firewire/*
2015-06-09 17:47:35 -03:00
Christian Engelmayer
ec73b9fdc7 [media] si2165: Fix possible leak in si2165_upload_firmware()
In case of an error function si2165_upload_firmware() releases the already
requested firmware in the exit path. However, there is one deviation where
the function directly returns. Use the correct cleanup so that the firmware
memory gets freed correctly. Detected by Coverity CID 1269120.

Signed-off-by: Christian Engelmayer <cengelma@gmx.at>
Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Reviewed-by: Luis de Bethencourt <luis.bg@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-08 08:12:00 -03:00
Matthias Schwarzott
119bd82e0e [media] si2165: enable Si2161 support
Additionally print chip name with revision symbolically.
This is a preparation for supporting new Hauppauge WinTV-HVR-900-H based
on cx231xx.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-23 16:13:33 -03:00
Matthias Schwarzott
55bea40070 [media] si2165: Load driver for all hardware revisions
Current firmware is only for revision D.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2014-09-23 16:13:33 -03:00
Hans Verkuil
e73c7bfea0 [media] si2165: fix sparse warning
drivers/media/dvb-frontends/si2165.c:329:16: warning: odd constant _Bool cast (ffffffffffffffea becomes 1)

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-09-03 10:00:36 -03:00
Matthias Schwarzott
3e54a1697a [media] si2165: Add demod driver for DVB-T only
DVB-T was tested  with 8MHz BW channels in germany
This driver is the simplest possible, it uses automatic mode for all
parameters (TPS).

Added spectrum inversion support.

Signed-off-by: Matthias Schwarzott <zzam@gentoo.org>
Tested-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
2014-07-27 17:01:41 -03:00