Commit Graph

692989 Commits

Author SHA1 Message Date
Sakari Ailus
f758eb2363 media: dw9714: Remove ACPI match tables, convert to use probe_new
The ACPI match table is empty. Remove it.

Also convert the drive to use probe_new callback in struct i2c_driver.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 13:41:16 -04:00
Sakari Ailus
c2bc8b06ca media: dw9714: Add Devicetree support
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:47:19 -04:00
Sakari Ailus
aece98a912 media: dt-bindings: Add bindings for Dongwoon DW9714 voice coil
Dongwoon DW9714 is a voice coil lens driver.

Also add a vendor prefix for Dongwoon for one did not exist previously.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:46:59 -04:00
Stanimir Varbanov
b1540ceaed media: venus: venc: drop VP9 codec support
No one of the supported Venus version has implemented VP9 codec
for enconding, so drop it from the list of codecs.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:45:59 -04:00
Stanimir Varbanov
29f0133ec6 media: venus: use helper function to check supported codecs
Use the helper function in decoder and encoder find_format
to runtime check supported codecs.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:45:34 -04:00
Stanimir Varbanov
d8db57c26f media: venus: add helper to check supported codecs
Adds a helper function to runtime check supported encoder and
decoder codecs depending on venus version and platform.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:45:03 -04:00
Stanimir Varbanov
5c2c165905 media: venus: fill missing video_device name
This fills missing (forgotten) video device name with
appropriate string so that udev can distinguishes between
decoder and encoder devices.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:44:25 -04:00
Stanimir Varbanov
62d625c93c media: venus: mark venc and vdec PM functions as __maybe_unused
Without PM support gcc could warns about unused functions, thus
mark runtime_suspend/resume as __maybe_unused.

Signed-off-by: Stanimir Varbanov <stanimir.varbanov@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:44:07 -04:00
Arvind Yadav
e0ee62c49f media: ths8200: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:43:40 -04:00
Arvind Yadav
2f8dfed83c media: tc358743: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:43:27 -04:00
Arvind Yadav
e749d1f1ce media: saa7127: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:42:57 -04:00
Arvind Yadav
77c6cba385 media: adv7842: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:42:43 -04:00
Arvind Yadav
4bd7466bf7 media: adv7511: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:42:28 -04:00
Arvind Yadav
99b1ddf94d media: ad9389b: constify i2c_device_id
i2c_device_id are not supposed to change at runtime. All functions
working with i2c_device_id provided by <linux/i2c.h> work with
const i2c_device_id. So mark the non-const structs as const.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:42:12 -04:00
Bhumika Goyal
6843868fd0 media: usb: make i2c_adapter const
Make these const as they are only used in a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:41:58 -04:00
Bhumika Goyal
9a5c43b3d2 media: radio-usb-si4713: make i2c_adapter const
Make this const as it is only used in a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:41:29 -04:00
Bhumika Goyal
e5fffebe6d media: pci: make i2c_adapter const
Make these const as they are only used in a copy operation.
Done using Coccinelle

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:41:15 -04:00
Bhumika Goyal
ea9b0f31c1 media: i2c: make device_type const
Make this const as it is only stored in the type field of a device
structure, which is const.
Done using Coccinelle.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:40:42 -04:00
Bhumika Goyal
d746cf89b4 media: usb: make i2c_algorithm const
Make these const as they are only used in a copy operation or
are stored in the algo field of i2c_adapter structure, which is const.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Acked-by: Mike Isely <isely@pobox.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:40:01 -04:00
Hans Verkuil
43298e768c media: stm32-cec: use CEC_CAP_DEFAULTS
Use the new CEC_CAP_DEFAULTS define in this driver.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:36:58 -04:00
Hans Verkuil
c06f6be6a7 media: stih-cec: use CEC_CAP_DEFAULTS
Use the new CEC_CAP_DEFAULTS define in this driver.
This also adds the CEC_CAP_RC capability which was missing here
(and this is also the reason for this new define, to avoid missing
such capabilities).

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:36:45 -04:00
Hans Verkuil
b0704f8541 media: vivid: fix incorrect HDMI input/output CEC logging
Only the first HDMI input has a CEC adapter, so just report 'HDMI 0' as
the HDMI input name.

For the HDMI outputs use bus_cnt instead of i as the output number.
The HDMI name now corresponds to what 'v4l2-ctl --list-outputs' reports.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:36:29 -04:00
Hans Verkuil
4f88b0de78 media: vivid: add CEC pin monitoring emulation
Add support to emulate CEC pin monitoring. There are few hardware devices
that support this, so being able to emulate it here helps developing
software for this.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:35:49 -04:00
Hans Verkuil
28e11b15b6 media: cec: replace pin->cur_value by adap->cec_pin_is_high
The current CEC pin value (0 or 1) was part of the cec_pin struct,
but that assumes that CEC pin monitoring can only be used with
a driver that uses the low-level CEC pin framework.

But hardware that has both a high-level API and can monitor the
CEC pin at low-level at the same time does not need to depend on
the cec pin framework.

To support such devices remove the cur_value field from struct cec_pin
and add a cec_pin_is_high field to cec_adapter. This also makes it
possible to drop the '#ifdef CONFIG_CEC_PIN' in cec-api.c.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:35:10 -04:00
Hans Verkuil
152b0a9a3d media: cec: ensure that adap_enable(false) is called from cec_delete_adapter()
When the adapter is removed the cec_delete_adapter() call attempts
to set the physical address to INVALID by calling __cec_s_phys_addr()
and so disabling the adapter.

However, __cec_s_phys_addr checks if the device node was unregistered
and just returns in that case.

This means that the adap_enable callback is never called with 'false'
to disable the CEC adapter. Most drivers don't care, but some need
to do cleanup here.

Change the test so the adapter is correctly disabled, even when the
device node is unregistered.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Reported-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-26 08:32:15 -04:00
Fengguang Wu
0779b8855c media: ddbridge: fix semicolon.cocci warnings
drivers/media/pci/ddbridge/ddbridge-maxs8.c:145:2-3: Unneeded semicolon
drivers/media/pci/ddbridge/ddbridge-maxs8.c:173:2-3: Unneeded semicolon

 Remove unneeded semicolon.

Generated by: scripts/coccinelle/misc/semicolon.cocci

Fixes: a43dbe430fb4 ("media: ddbridge: support MaxLinear MXL5xx based cards (MaxS4/8)")

CC: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:25:22 -04:00
Jemma Denson
214824156c media: isl6421: add checks for current overflow
This Kaffeine's BZ:
	https://bugs.kde.org/show_bug.cgi?id=374693

affects SkyStar S2 PCI DVB-S/S2 rev 3.3 device. It could be due to
a Kernel bug.

While checking the Isil 6421, comparing with its manual, available at:

	http://www.intersil.com/content/dam/Intersil/documents/isl6/isl6421a.pdf

It was noticed that, if the output load is highly capacitive, a different approach
is recomended when energizing the LNBf.

Also, it is possible to detect if a current overload is happening, by checking an
special flag.

Add support for it.

Tested on Skystar S2. Changes respect override_or option so should still work fine
on cx88 based cards which disable dynamic current limit.

Changes since v1:
v2 - fixed incorrect checking of i2c return values
v3 - fix if logic to check if dcl needs re-enabling
   - respect override_or values which aim to disable dcl
   - only do long sleep on overload if dcl enabled
   - add short sleep before re-enabling dcl
   - only check overload and potentially return EINVAL if device is on
v4 - revert v3 sleep logic changes to remove tuning delays

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jemma Denson <jdenson@gmail.com>
2017-08-20 10:20:30 -04:00
Daniel Scheller
7112b490af media: stv6111: return NULL instead of plain integer
Fixes:
  stv6111.c:665:24: warning: Using plain integer as NULL pointer

Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:15:39 -04:00
Daniel Scheller
c16ad5de39 media: stv0910: declare global list_head stvlist static
Cleans up smatch warning:
symbol 'stvlist' was not declared. Should it be static?

Patch originally submitted by Colin Ian King <colin.king@canonical.com>,
remainder after the merge of all other stv0910 fixes.

Cc: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Daniel Scheller <d.scheller@gmx.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:15:34 -04:00
Sean Young
6d741bfed5 media: rc: rename RC_TYPE_* to RC_PROTO_* and RC_BIT_* to RC_PROTO_BIT_*
RC_TYPE is confusing and it's just the protocol. So rename it.

Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 10:02:48 -04:00
Hans Verkuil
a9a249a2c9 media: cec: fix remote control passthrough
The 'Press and Hold' operation was not correctly implemented, in
particular the requirement that the repeat doesn't start until
the second identical keypress arrives. The REP_DELAY value also
had to be adjusted (see the comment in the code) to achieve the
desired behavior.

The 'enabled_protocols' field was also never set, fix that too. Since
CEC is a fixed protocol the driver has to set this field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:59:34 -04:00
Sean Young
d57ea877af media: rc: per-protocol repeat period
CEC needs a keypress timeout of 550ms, which is too high for the IR
protocols. Also fill in known repeat times, with 50ms error margin.

Also, combine all protocol data into one structure.

Signed-off-by: Sean Young <sean@mess.org>
Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:58:50 -04:00
Sean Young
12c3b9b921 media: rc: saa7134: raw decoder can support any protocol
Any protocol for which we have a software decoder, can be enabled. Without
this only the loaded protocol decoders can be selected.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:58:21 -04:00
Sean Young
2168b416c8 media: rc: ensure we do not read out of bounds
If rc_validate_filter() is called for CEC or XMP, then we would read
beyond the end of the array.

Suggested-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:57:54 -04:00
Sean Young
86fe1ac0d5 media: rc: simplify ir_raw_event_store_edge()
Since commit 12749b198fa4 ("[media] rc: saa7134: add trailing space for
timely decoding"), the workaround of inserting reset events is no
longer needed.

Note that the initial reset is not needed either; other rc-core drivers
that don't use ir_raw_event_store_edge() never call this at all.

Verified on a HVR-1150 and Raspberry Pi.

Fixes: 3f5c4c7332 ("[media] rc: fix ghost keypresses with certain hw")

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:57:24 -04:00
Sean Young
48b2de1971 media: rc: saa7134: add trailing space for timely decoding
The gpio-ir-recv driver adds timeouts which the saa7134 lacks; this
causes keypress not to arrive, and to only arrive once more IR is
received. This is what the commit below calls "ghost keypresses",
and that commit does not solve the issue completely.

This makes the IR on the HVR-1150 much more reliable and responsive.

Fixes: 3f5c4c7332 ("[media] rc: fix ghost keypresses with certain hw")

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:56:20 -04:00
Sean Young
e5e26439d1 media: rc-core: improve ir_raw_store_edge() handling
The gpio-ir-recv driver does many wakeups (once per edge); the saa7134
driver has special handling to only wakeup 15ms after the first edge.
Make this part of rc-core so gpio-ir-recv also benefits from
this (so a rc-5 keypress now causes 3 wakeups rather than 24).

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:55:48 -04:00
Sean Young
4fe055ecfc media: winbond-cir: buffer overrun during transmit
We're reading beyond the buffer before checking its length.

BUG: KASAN: slab-out-of-bounds in wbcir_irq_tx

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:52:04 -04:00
Sean Young
ff05cf0937 media: mceusb: do not read data parameters unless required
This causes out-of-bounds read on device probe.

BUG: KASAN: slab-out-of-bounds in mceusb_dev_printdata+0xdc/0x830 [mceusb]

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:51:43 -04:00
Sean Young
89d8a2cc51 media: lirc_zilog: driver only sends LIRCCODE
This driver cannot send pulse, it only accepts driver-dependent codes.

Cc: <stable@vger.kernel.org> # v3.2
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:51:01 -04:00
Shawn Guo
b429996ced media: rc: add zx-irdec remote control driver
It adds the remote control driver and corresponding keymap file for
IRDEC block found on ZTE ZX family SoCs.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:50:32 -04:00
Shawn Guo
30dcb4eaea media: dt-bindings: add bindings document for zx-irdec
It adds the dt-bindings document for ZTE ZX IRDEC remote control
block.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:49:41 -04:00
Shawn Guo
e8ffda7862 media: rc: ir-nec-decoder: move scancode composing code into a shared function
The NEC scancode composing and protocol type detection in
ir_nec_decode() is generic enough to be a shared function.  Let's create
an inline function in rc-core.h, so that other remote control drivers
can reuse this function to save some code.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:49:18 -04:00
Philipp Zabel
a2df9d0643 media: rc: sunxi-cir: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:48:41 -04:00
Philipp Zabel
a4b80242d0 media: st-rc: explicitly request exclusive reset control
Commit a53e35db70 ("reset: Ensure drivers are explicit when requesting
reset lines") started to transition the reset control request API calls
to explicitly state whether the driver needs exclusive or shared reset
control behavior. Convert all drivers requesting exclusive resets to the
explicit API call so the temporary transition helpers can be removed.

No functional changes.

Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:48:27 -04:00
Heiner Kallweit
87284271b7 media: rc: nuvoton: remove rudimentary transmit functionality
Transmit support in this driver was never tested and based on the code
it can't work. Just one example:
The buffer provided to nvt_tx_ir holds unsigned int values in
micro seconds: First value is for a pulse, second for a pause, etc.
Bytes in this buffer are copied as-is to the chip FIFO what can't work
as the chip-internal format is totally different. See also conversion
done in nvt_process_rx_ir_data.

Even if we would try to fix this we have the issue that we can't test
it. There seems to be no device on the market using IR transmit with
one of the chips supported by this driver.

To facilitate maintenance of the driver I'd propose to remove the
rudimentary transmit support.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:47:57 -04:00
Yves Lemée
a8c2d62b1b media: lirc_zilog: Clean up lirc zilog error codes
According the coding style guidelines, the ENOSYS error code must be
returned in case of a non existent system call. This code has been
replaced with the ENOTTY error code indicating a missing functionality.

Signed-off-by: Yves Lemée <yves.lemee.kernel@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:47:28 -04:00
Sean Young
afb24eabf9 media: dt-bindings: gpio-ir-tx: add support for GPIO IR Transmitter
Document the device tree bindings for the GPIO IR Bit Banging
Transmitter.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:47:04 -04:00
Sean Young
af1fd391a5 media: dt-bindings: pwm-ir-tx: Add support for PWM IR Transmitter
Document the device tree bindings for the PWM IR Transmitter.

Signed-off-by: Sean Young <sean@mess.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:46:46 -04:00
Sean Young
db3df8765e media: rc: pwm-ir-tx: add new driver
This is new driver which uses pwm, so it is more power-efficient
than the bit banging gpio-ir-tx driver.

Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Pavel Machek <pavel@ucw.cz>
Tested-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-08-20 09:46:18 -04:00