Commit Graph

765 Commits

Author SHA1 Message Date
Masahiro Yamada 29a8d97925 [media] squash lines for simple wrapper functions
Remove unneeded variables and assignments.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-16 13:28:40 -02:00
Javier Martinez Canillas 5bb50fe731 [media] rc: meson-ir: Fix module autoload
If the driver is built as a module, autoload won't work because the module
alias information is not filled. So user-space can't match the registered
device with the corresponding module.

Export the module alias information using the MODULE_DEVICE_TABLE() macro.

Before this patch:

$ modinfo drivers/media/rc/meson-ir.ko | grep alias
$

After this patch:

$ modinfo drivers/media/rc/meson-ir.ko | grep alias
alias:          of:N*T*Camlogic,meson-gxbb-irC*
alias:          of:N*T*Camlogic,meson-gxbb-ir
alias:          of:N*T*Camlogic,meson8b-irC*
alias:          of:N*T*Camlogic,meson8b-ir
alias:          of:N*T*Camlogic,meson6-irC*
alias:          of:N*T*Camlogic,meson6-ir

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-11-16 13:20:11 -02:00
Heiner Kallweit b6f3ece387 [media] rc: nuvoton: use managed versions of rc_allocate_device and rc_register_device
Simplify the remove function and the error path in the probe function by
using the managed versions of rc_allocate_device and rc_register_device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 18:29:49 -02:00
Heiner Kallweit ddbf7d5a69 [media] rc: core: add managed versions of rc_allocate_device and rc_register_device
Introduce managed versions of both functions.
They allows to simplify the error path in the probe function of
rc drivers, and usually also to simplify the remove function.

New element managed_alloc in struct rc_dev is needed to correctly
handle mixed use, e.g. managed version of rc_register_device and
normal version of rc_allocate_device.

In addition devm_rc_allocate_device sets rc->dev.parent as having a
reference to the parent device might be useful for future extensions.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 18:28:56 -02:00
Heiner Kallweit 37e90a220a [media] rc: ir-raw: change type of available_protocols to atomic64_t
Changing available_protocols to atomic64_t allows to get rid of the
mutex protecting access to the variable. This helps to simplify
the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 18:16:06 -02:00
Daniel Wagner 7c073fffb7 [media] imon: use complete() instead of complete_all()
There is only one waiter for the completion, therefore there is no need
to use complete_all(). Let's make that clear by using complete() instead
of complete_all().

While we are at it, we do a small optimization with the reinitialization
of the completion before we use it.

The usage pattern of the completion is:

waiter context                          waker context

send_packet()
  init_completion()
  usb_submit_urb()
  wait_for_completion_interruptible()

                                        usb_tx_callback()
                                          complete()

                                        imon_disonnect()
                                          complete()

Signed-off-by: Daniel Wagner <daniel.wagner@bmw-carit.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 17:39:43 -02:00
Nicolas Iooss 7ec03e60ef [media] ite-cir: initialize use_demodulator before using it
Function ite_set_carrier_params() uses variable use_demodulator after
having initialized it to false in some if branches, but this variable is
never set to true otherwise.

This bug has been found using clang -Wsometimes-uninitialized warning
flag.

Fixes: 620a32bba4 ("[media] rc: New rc-based ite-cir driver for
several ITE CIRs")

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-24 17:19:28 -02:00
Mauro Carvalho Chehab 25ec587c02 [media] rc: don't break long lines
Due to the 80-cols restrictions, and latter due to checkpatch
warnings, several strings were broken into multiple lines. This
is not considered a good practice anymore, as it makes harder
to grep for strings at the source code.

As we're right now fixing other drivers due to KERN_CONT, we need
to be able to identify what printk strings don't end with a "\n".
It is a way easier to detect those if we don't break long lines.

So, join those continuation lines.

The patch was generated via the script below, and manually
adjusted if needed.

</script>
use Text::Tabs;
while (<>) {
	if ($next ne "") {
		$c=$_;
		if ($c =~ /^\s+\"(.*)/) {
			$c2=$1;
			$next =~ s/\"\n$//;
			$n = expand($next);
			$funpos = index($n, '(');
			$pos = index($c2, '",');
			if ($funpos && $pos > 0) {
				$s1 = substr $c2, 0, $pos + 2;
				$s2 = ' ' x ($funpos + 1) . substr $c2, $pos + 2;
				$s2 =~ s/^\s+//;

				$s2 = ' ' x ($funpos + 1) . $s2 if ($s2 ne "");

				print unexpand("$next$s1\n");
				print unexpand("$s2\n") if ($s2 ne "");
			} else {
				print "$next$c2\n";
			}
			$next="";
			next;
		} else {
			print $next;
		}
		$next="";
	} else {
		if (m/\"$/) {
			if (!m/\\n\"$/) {
				$next=$_;
				next;
			}
		}
	}
	print $_;
}
</script>

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 10:07:34 -02:00
Mauro Carvalho Chehab 832d40c028 [media] imon: use %*ph to do small hexa dumps
Since commit 563873318d ("Merge branch 'printk-cleanups"),
continuation lines require KERN_CONT. Instead, let's just
use %*ph to print the buffer.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-10-21 08:51:27 -02:00
Linus Torvalds de34f4da7f media updates for v4.9-rc1
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Merge tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - Documentation improvements: conversion of all non-DocBook documents
   to Sphinx and lots of fixes to the uAPI media book

 - New PCI driver for Techwell TW5864 media grabber boards

 - New SoC driver for ATMEL Image Sensor Controller

 - Removal of some obsolete SoC drivers (s5p-tv driver and soc_camera
   drivers)

 - Addition of ST CEC driver

 - Lots of drivers fixes, improvements and additions

* tag 'media/v4.9-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (464 commits)
  [media] ttusb_dec: avoid the risk of go past buffer
  [media] cx23885: Fix some smatch warnings
  [media] si2165: switch to regmap
  [media] si2165: use i2c_client->dev instead of i2c_adapter->dev for logging
  [media] si2165: Remove legacy attach
  [media] cx231xx: attach si2165 driver via i2c_client
  [media] cx231xx: Prepare for attaching new style i2c_client DVB demod drivers
  [media] cx23885: attach si2165 driver via i2c_client
  [media] si2165: support i2c_client attach
  [media] si2165: avoid division by zero
  [media] rcar-vin: add R-Car gen2 fallback compatibility string
  [media] lgdt3306a: remove 20*50 msec unnecessary timeout
  [media] cx25821: Remove deprecated create_singlethread_workqueue
  [media] cx25821: Drop Freeing of Workqueue
  [media] cxd2841er: force 8MHz bandwidth for DVB-C if specified bw not supported
  [media] redrat3: hardware-specific parameters
  [media] redrat3: remove hw_timeout member
  [media] cxd2841er: BER and SNR reading for ISDB-T
  [media] dvb-usb: avoid link error with dib3000m{b,c|
  [media] dvb-usb: split out common parts of dibusb
  ...
2016-10-11 13:22:22 -07:00
Linus Torvalds 6afd563d4b ARM: SoC driver updates for v4.9
Driver updates for ARM SoCs, including a couple of newly added drivers:
 
 - The Qualcomm external bus interface 2 (EBI2), used in some of their
   mobile phone chips for connecting flash memory, LCD displays or
   other peripherals
 
 - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for the
   EFUSE based on that firmware interface.
 
 - Perf support for the AppliedMicro X-Gene performance monitor unit
 
 - Reset driver for STMicroelectronics STM32
 
 - Reset driver for SocioNext UniPhier SoCs
 
 Aside from these, there are minor updates to SoC-specific bus,
 clocksource, firmware, pinctrl, reset, rtc and pmic drivers.
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "Driver updates for ARM SoCs, including a couple of newly added
  drivers:

   - The Qualcomm external bus interface 2 (EBI2), used in some of their
     mobile phone chips for connecting flash memory, LCD displays or
     other peripherals

   - Secure monitor firmware for Amlogic SoCs, and an NVMEM driver for
     the EFUSE based on that firmware interface.

   - Perf support for the AppliedMicro X-Gene performance monitor unit

   - Reset driver for STMicroelectronics STM32

   - Reset driver for SocioNext UniPhier SoCs

  Aside from these, there are minor updates to SoC-specific bus,
  clocksource, firmware, pinctrl, reset, rtc and pmic drivers"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
  bus: qcom-ebi2: depend on HAS_IOMEM
  pinctrl: mvebu: orion5x: Generalise mv88f5181l support for 88f5181
  clk: mvebu: Add clk support for the orion5x SoC mv88f5181
  dt-bindings: EXYNOS: Add Exynos5433 PMU compatible
  clocksource: exynos_mct: Add the support for ARM64
  perf: xgene: Add APM X-Gene SoC Performance Monitoring Unit driver
  Documentation: Add documentation for APM X-Gene SoC PMU DTS binding
  MAINTAINERS: Add entry for APM X-Gene SoC PMU driver
  bus: qcom: add EBI2 driver
  bus: qcom: add EBI2 device tree bindings
  rtc: rtc-pm8xxx: Add support for pm8018 rtc
  nvmem: amlogic: Add Amlogic Meson EFUSE driver
  firmware: Amlogic: Add secure monitor driver
  soc: qcom: smd: Reset rx tail rather than tx
  memory: atmel-sdramc: fix a possible NULL dereference
  reset: hi6220: allow to compile test driver on other architectures
  reset: zynq: add driver Kconfig option
  reset: sunxi: add driver Kconfig option
  reset: stm32: add driver Kconfig option
  reset: socfpga: add driver Kconfig option
  ...
2016-10-07 21:23:40 -07:00
Sean Young d6ae162bd1 [media] redrat3: hardware-specific parameters
Add these options as module parameters for now; should other drivers
need similar options we could add it to the LIRC api.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:46:12 -03:00
Sean Young c7470ff210 [media] redrat3: remove hw_timeout member
This is a duplicate of the timeout in rc_dev.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 12:45:30 -03:00
Sean Young 2ceeca0499 [media] rc: split nec protocol into its three variants
Currently we do not know what variant (bit length) of the nec protocol
is used, other than from guessing from the length of the scancode. Now
nec will be handled the same way as the sony protocol or the rc6 protocol;
one variant per bit length.

In the future we might want to expose the rc protocol type to userspace
and we don't want to be introducing this world of pain into userspace
too.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:46:49 -03:00
Sean Young e998c92d6c [media] rc: rc6 decoder should report protocol correctly
When reporting decoded protocol use the enum rather than the bitmap.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:42:29 -03:00
Heiner Kallweit 6db0168821 [media] media: rc: nuvoton: simplify nvt_get_rx_ir_data a little
Simplify the code a little.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:37:28 -03:00
Heiner Kallweit a2006ca432 [media] media: rc: nuvoton: remove unneeded call to ir_raw_event_handle
ir_raw_event_handle is called anyway after the hw fifo content stored
in nvt->buf[] has been written to the kfifo. There is not really a
benefit in the potential additional call to ir_raw_event_handle
whilst nvt->buf[] is being processed.
Getting rid of this additional call allows to simplify the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:37:01 -03:00
Heiner Kallweit bacf8351f2 [media] media: rc: nuvoton: remove usage of b_idx in nvt_get_rx_ir_data
The call to nvt_get_rx_ir_data and nvt_process_rx_ir_data from
the ISR is protected with spinlock nvt->lock. Therefore it's
guaranteed that nvt->pkts is 0 when entering nvt_get_rx_ir_data
(as nvt->pkts is set to 0 at the end of nvt_process_rx_ir_data).
Having said that we can remove b_idx.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:24:28 -03:00
Heiner Kallweit d14f291b62 [media] media: rc: nuvoton: ignore spurious interrupt when logical device is being disabled
When removing module nuvoton-cir I get a fifo overrun warning.
It turned out to be caused by a spurious interrupt when the logical CIR
device is being disabled (although no interrupt source bit being set).
Reading the interrupt status register returns 0xff, therefore the fifo
overrun bit is mistakenly interpreted as being set.

Fix this by ignoring interrupts when interrupt source and status register
reads return 0xff.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:23:50 -03:00
Heiner Kallweit 033919e0f8 [media] media: rc: fix deadlock when module ir_lirc_codec is removed
When removing module ir_lirc_codec I got this deadlock warning.
Fix this by introducing a separate mutex to protect access
to available_protocols instead of using ir_raw_handler_lock
for this purpose.

======================================================
[ INFO: possible circular locking dependency detected ]
4.7.0-next-20160729 #1 Not tainted
-------------------------------------------------------
rmmod/2542 is trying to acquire lock:
 (&dev->lock){+.+.+.}, at: [<ffffffffa03b1267>]
			ir_raw_handler_unregister+0x77/0xd0 [rc_core]

but task is already holding lock:
 (ir_raw_handler_lock){+.+.+.}, at: [<ffffffffa03b1212>]
			ir_raw_handler_unregister+0x22/0xd0 [rc_core]

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 (ir_raw_handler_lock){+.+.+.}:
       [<ffffffff810ab1f2>] lock_acquire+0xb2/0x1e0
       [<ffffffff815c087f>] mutex_lock_nested+0x5f/0x360
       [<ffffffffa03b1403>] ir_raw_get_allowed_protocols+0x13/0x30 [rc_core]
       [<ffffffffa03af8ea>] store_protocols+0x2fa/0x480 [rc_core]
       [<ffffffff8143e143>] dev_attr_store+0x13/0x20
       [<ffffffff81213c50>] sysfs_kf_write+0x40/0x50
       [<ffffffff81212f60>] kernfs_fop_write+0x150/0x1e0
       [<ffffffff81197613>] __vfs_write+0x23/0x120
       [<ffffffff81198740>] vfs_write+0xb0/0x190
       [<ffffffff81199a34>] SyS_write+0x44/0xa0
       [<ffffffff815c55a5>] entry_SYSCALL_64_fastpath+0x18/0xa8

-> #0 (&dev->lock){+.+.+.}:
       [<ffffffff810aac8c>] __lock_acquire+0x10fc/0x1270
       [<ffffffff810ab1f2>] lock_acquire+0xb2/0x1e0
       [<ffffffff815c087f>] mutex_lock_nested+0x5f/0x360
       [<ffffffffa03b1267>] ir_raw_handler_unregister+0x77/0xd0 [rc_core]
       [<ffffffffa03c8c05>] ir_lirc_codec_exit+0x10/0x12 [ir_lirc_codec]
       [<ffffffff810e1b88>] SyS_delete_module+0x168/0x220
       [<ffffffff815c55a5>] entry_SYSCALL_64_fastpath+0x18/0xa8

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock(ir_raw_handler_lock);
                               lock(&dev->lock);
                               lock(ir_raw_handler_lock);
  lock(&dev->lock);

 *** DEADLOCK ***

1 lock held by rmmod/2542:
 #0:  (ir_raw_handler_lock){+.+.+.}, at: [<ffffffffa03b1212>]
			ir_raw_handler_unregister+0x22/0xd0 [rc_core]

stack backtrace:
CPU: 0 PID: 2542 Comm: rmmod Not tainted 4.7.0-next-20160729 #1
Hardware name: ZOTAC ZBOX-CI321NANO/ZBOX-CI321NANO, BIOS B246P105 06/01/2015
 0000000000000000 ffff88006e607cc0 ffffffff812715f5 ffffffff8232b230
 ffffffff8232b230 ffff88006e607d00 ffffffff810a846e 00000000790107f0
 ffff880079010818 ffff8800790107f0 1efeb9f4f0dd2e6f ffff880079010000
Call Trace:
 [<ffffffff812715f5>] dump_stack+0x68/0x93
 [<ffffffff810a846e>] print_circular_bug+0x1be/0x210
 [<ffffffff810aac8c>] __lock_acquire+0x10fc/0x1270
 [<ffffffff810bcead>] ? debug_lockdep_rcu_enabled+0x1d/0x20
 [<ffffffff810ab1f2>] lock_acquire+0xb2/0x1e0
 [<ffffffffa03b1267>] ? ir_raw_handler_unregister+0x77/0xd0 [rc_core]
 [<ffffffff815c087f>] mutex_lock_nested+0x5f/0x360
 [<ffffffffa03b1267>] ? ir_raw_handler_unregister+0x77/0xd0 [rc_core]
 [<ffffffff810a980e>] ? trace_hardirqs_on_caller+0xee/0x1b0
 [<ffffffffa03b1267>] ir_raw_handler_unregister+0x77/0xd0 [rc_core]
 [<ffffffffa03c8c05>] ir_lirc_codec_exit+0x10/0x12 [ir_lirc_codec]
 [<ffffffff810e1b88>] SyS_delete_module+0x168/0x220
 [<ffffffff815c55a5>] entry_SYSCALL_64_fastpath+0x18/0xa8

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:23:13 -03:00
Ole Ernst 552001e676 [media] Partly revert "[media] rc-core: allow calling rc_open with device not initialized"
This partly reverts commit 078600f514.

Due to the relocation of input_register_device() call, holding down a
button on an IR remote no longer resulted in repeated key down events.

Signed-off-by: Ole Ernst <olebowle@gmx.com>
Tested-by: Matthias Reichl <hias@horus.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-22 11:21:15 -03:00
Colin Ian King 1c195cb1de [media] rc/streamzap: fix spelling mistake "sumbiting" -> "submitting"
Trivial fix to spelling mistake in dev_err message.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-09-19 16:27:23 -03:00
Wolfram Sang 5414c2d6af media: rc: redrat3: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:13:53 +02:00
Wolfram Sang 75ee1cb92b media: rc: imon: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-08-30 19:13:53 +02:00
Neil Armstrong 6edf27ee25 media: rc: meson-ir: Add support for newer versions of the IR decoder
Newer SoCs (Meson 8b and GXBB) are using REG2 (offset 0x20) instead of
REG1 to configure the decoder mode. This makes it necessary to
introduce new bindings so the driver knows which register has to be
used.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Tested-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
2016-08-29 12:24:40 -07:00
Hans Verkuil b1cb50beaf [media] redrat3: fix sparse warning
Fix this sparse warning:

drivers/media/rc/redrat3.c:490:18: warning: incorrect type in assignment (different base types)
drivers/media/rc/redrat3.c:495:9: warning: cast to restricted __be32

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-25 09:46:39 -03:00
Wolfram Sang cd859c19d5 [media] media: rc: redrat3: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-24 08:47:41 -03:00
Wolfram Sang 1524191910 [media] media: rc: imon: don't print error when allocating urb fails
kmalloc will print enough information in case of failure.

Signed-off-by: Wolfram Sang <wsa-dev@sang-engineering.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-08-24 08:47:21 -03:00
Linus Torvalds 43a0a98aa8 ARM: SoC driver updates for v4.8
Driver updates for ARM SoCs.
 
 A slew of changes this release cycle. The reset driver tree, that we merge
 through arm-soc for historical reasons, is also sizable this time around.
 
 Among the changes:
 
  - clps711x: Treewide changes to compatible strings, merged here for simplicity.
  - Qualcomm: SCM firmware driver cleanups, move to platform driver
  - ux500: Major cleanups, removal of old mach-specific infrastructure.
  - Atmel external bus memory driver
  - Move of brcmstb platform to the rest of bcm
  - PMC driver updates for tegra, various fixes and improvements
  - Samsung platform driver updates to support 64-bit Exynos platforms
  - Reset controller cleanups moving to devm_reset_controller_register() APIs
  - Reset controller driver for Amlogic Meson
  - Reset controller driver for Hisilicon hi6220
  - ARM SCPI power domain support
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Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver updates from Olof Johansson:
 "Driver updates for ARM SoCs.

  A slew of changes this release cycle.  The reset driver tree, that we
  merge through arm-soc for historical reasons, is also sizable this
  time around.

  Among the changes:

   - clps711x: Treewide changes to compatible strings, merged here for simplicity.
   - Qualcomm: SCM firmware driver cleanups, move to platform driver
   - ux500: Major cleanups, removal of old mach-specific infrastructure.
   - Atmel external bus memory driver
   - Move of brcmstb platform to the rest of bcm
   - PMC driver updates for tegra, various fixes and improvements
   - Samsung platform driver updates to support 64-bit Exynos platforms
   - Reset controller cleanups moving to devm_reset_controller_register() APIs
   - Reset controller driver for Amlogic Meson
   - Reset controller driver for Hisilicon hi6220
   - ARM SCPI power domain support"

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (100 commits)
  ARM: ux500: consolidate base platform files
  ARM: ux500: move soc_id driver to drivers/soc
  ARM: ux500: call ux500_setup_id later
  ARM: ux500: consolidate soc_device code in id.c
  ARM: ux500: remove cpu_is_u* helpers
  ARM: ux500: use CLK_OF_DECLARE()
  ARM: ux500: move l2x0 init to .init_irq
  mfd: db8500 stop passing around platform data
  ASoC: ab8500-codec: remove platform data based probe
  ARM: ux500: move ab8500_regulator_plat_data into driver
  ARM: ux500: remove unused regulator data
  soc: raspberrypi-power: add CONFIG_OF dependency
  firmware: scpi: add CONFIG_OF dependency
  video: clps711x-fb: Changing the compatibility string to match with the smallest supported chip
  input: clps711x-keypad: Changing the compatibility string to match with the smallest supported chip
  pwm: clps711x: Changing the compatibility string to match with the smallest supported chip
  serial: clps711x: Changing the compatibility string to match with the smallest supported chip
  irqchip: clps711x: Changing the compatibility string to match with the smallest supported chip
  clocksource: clps711x: Changing the compatibility string to match with the smallest supported chip
  clk: clps711x: Changing the compatibility string to match with the smallest supported chip
  ...
2016-08-01 18:36:01 -04:00
Sean Young 4f253cecf8 [media] redrat3: make hardware timeout configurable
Instead of hardcoding a timeout, let userspace change it dynamically
by adding a s_timeout ops.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 12:01:46 -03:00
Sean Young 25da661a14 [media] redrat3: fix timeout handling
The redrat3 sends an usb packet to the host either when the minimum pause
or the timeout occurs, so we can always add a trailing space in our
processing.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 12:00:16 -03:00
Sean Young 14d8188aab [media] rc: make s_tx_carrier consistent
LIRC_SET_SEND_CARRIER should return 0 on success or -errno.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 11:54:23 -03:00
Sean Young 20f5a827cf [media] rc: make s_tx_mask consistent
When s_tx_mask is given an invalid bitmask, the number of transmitters
should be returned. See the LIRC_SET_TRANSMITTER_MASK lirc ioctl
documentation.

Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-15 11:46:55 -03:00
Heiner Kallweit 5cac1f67ea [media] rc: nuvoton: fix hang if chip is configured for alternative EFM IO address
If a system configures the Nuvoton chip to use the alternative
EFM IO address (CR_EFIR2) then after probing the primary EFM IO
address (CR_EFIR) this region is not released.

If a driver for another function of the Nuvoton Super I/O
chip uses the same probing mechanism then it will hang if
loaded after the nuvoton-cir driver.
This was reported for the nct6775 hwmon driver.

Fix this by properly releasing the region after probing CR_EFIR.
This regression was introduced with kernel 4.6 so cc it to stable.

Reported-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Antti Seppälä <a.seppala@gmail.com>
Cc: <stable@vger.kernel.org> # 4.6.x-
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:49:01 -03:00
Andi Shyti 273b902a5b [media] lirc_dev: use LIRC_CAN_REC() define to check if the device can receive
The LIRC_CAN_REC() returns a boolean "flag & LIRC_CAN_REC_MASK"
to check whether the device can receive data.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:29:03 -03:00
Andi Shyti 8e5fa4c67d [media] lirc_dev: fix potential segfault
When opening or closing a lirc character device, the framework
provides to the user the possibility to keep track of opening or
closing of the device by calling two functions:

 - set_use_inc() when opening the device
 - set_use_dec() when closing the device

if those are not set by the lirc user, the system segfaults.
Check the pointer value before calling the above functions.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:28:25 -03:00
Andi Shyti 62e92682c0 [media] lirc_dev: extremely trivial comment style fix
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:27:16 -03:00
Andi Shyti b408809487 [media] lirc_dev: fix error return value
If ioctl is called, it cannot be a case of invalid system call
number (ENOSYS), that is a ENOTTY case which means that the
device doesn't support that specific ioctl command.

So, replace ENOSYS with ENOTTY.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:26:52 -03:00
Andi Shyti 9675ee5a8e [media] lirc_dev: fix variable constant comparisons
When comparing a variable with a constant, the comparison should
start from the variable and not from the constant. It's also
written in the human DNA.

Swap the terms of comparisons whenever the constant comes first
and fix the following checkpatch warning:

  WARNING: Comparisons should place the constant on the right side of the test

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:25:41 -03:00
Andi Shyti 14db9fc2d4 [media] lirc_dev: merge three if statements in only one
The three if statements check the same thing, merge them in only
one statement.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:24:28 -03:00
Andi Shyti 6ab86d2aa0 [media] lirc_dev: remove double if ... else statement
There are two if ... else which check the same thing in different
part of the code, they can be merged in a single check.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:09:05 -03:00
Andi Shyti 19e565397c [media] lirc_dev: simplify if statement in lirc_add_to_buf
The whole function is inside an 'if' statement
("if (ir->d.add_to_buf)").

Check the opposite of that statement at the beginning and exit,
this way we can have one level less of indentation.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:06:29 -03:00
Andi Shyti 7fe579d29f [media] lirc_dev: do not use goto to create loops
... use "do .. while" instead.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 15:01:13 -03:00
Andi Shyti 54fcecafe5 [media] lirc_dev: simplify goto paths
The code can be rearranged so that some goto paths can be removed

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 14:59:19 -03:00
Andi Shyti 3fac031460 [media] lirc_dev: replace printk with pr_* or dev_*
This patch mutes also all the checkpatch warnings related to
printk.

Reword all the printouts so that the string doesn't need to be
split, which fixes the following checkpatch warning:

  WARNING: quoted string split across lines

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 14:58:41 -03:00
Andi Shyti fe084c7eff [media] lirc_dev: remove unnecessary debug prints
Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 14:56:26 -03:00
Andi Shyti 70143984dd [media] lirc_dev: allow bufferless driver registration
Transmitters don't necessarily need to have a FIFO managed buffer
for their transfers.

When registering the driver, before allocating the buffer, check
whether the device is a transmitter or receiver. Allocate the
buffer only for receivers.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 14:54:58 -03:00
Andi Shyti 6fa99e1af1 [media] lirc_dev: place buffer allocation on separate function
During the driver registration, move the buffer allocation on a
separate function.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-13 14:52:36 -03:00
Jonathan McDowell a4d020e97d [media] Convert Wideview WT220 DVB USB driver to rc-core
Converts the dtt200u DVB USB driver over to the rc-core
infrastructure for its handling of IR remotes. This device can receive
generic NEC / NEC Extended signals and the switch to the newer core
enables the easy use of tools such as ir-keytable to modify the active
key map.

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-09 12:10:33 -03:00
Jonathan McDowell bbdb34c90a [media] Fix RC5 decoding with Fintek CIR chipset
Fix RC5 decoding with Fintek CIR chipset

Commit e87b540be2 tightened up the RC5
decoding by adding a check for trailing silence to ensure a valid RC5
command had been received. Unfortunately the trailer length checked was
10 units and the Fintek CIR device does not want to provide details of a
space longer than 6350us. This meant that RC5 remotes working on a
Fintek setup on 3.16 failed on 3.17 and later. Fix this by shortening
the trailer check to 6 units (allowing for a previous space in the
received remote command).

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=117221

Signed-off-by: Jonathan McDowell <noodles@earth.li>
Cc: stable@vger.kernel.org
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-09 11:47:28 -03:00
Kamil Debski 7b2cd0d8da [media] rc-cec: Add HDMI CEC keymap module
Add the keymap module for HDMI CEC remote control commands.

Signed-off-by: Kamil Debski <kamil@wypas.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 18:26:45 -03:00
Mauro Carvalho Chehab cbb5c8355a Merge branch 'topic/cec' into patchwork
* topic/cec:
  [media] DocBook/media: add CEC documentation
  [media] s5p_cec: get rid of an unused var
  [media] move s5p-cec to staging
  [media] vivid: add CEC emulation
  [media] cec: s5p-cec: Add s5p-cec driver
  [media] cec: adv7511: add cec support
  [media] cec: adv7842: add cec support
  [media] cec: adv7604: add cec support
  [media] cec: add compat32 ioctl support
  [media] cec/TODO: add TODO file so we know why this is still in staging
  [media] cec: add HDMI CEC framework (api)
  [media] cec: add HDMI CEC framework (adapter)
  [media] cec: add HDMI CEC framework (core)
  [media] cec-funcs.h: static inlines to pack/unpack CEC messages
  [media] cec.h: add cec header
  [media] cec-edid: add module for EDID CEC helper functions
  [media] cec.txt: add CEC framework documentation
  [media] rc: Add HDMI CEC protocol handling
2016-07-08 18:16:10 -03:00
Heiner Kallweit 241d9bb342 [media] media: rc: nuvoton: remove two unused elements in struct nvt_dev
These two fields are not used and can be removed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:19:35 -03:00
Heiner Kallweit d1e3e574d5 [media] media: rc: nuvoton: remove unneeded check in nvt_get_rx_ir_data
If the logical device is disabled then it can not generate interrupts.
Therefore this check is not needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:19:07 -03:00
Heiner Kallweit 228942efdb [media] media: rc: nuvoton: simplify interrupt handling code
Simplify interupt handling code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:18:12 -03:00
Heiner Kallweit e5283f5f1f [media] media: rc: nuvoton: remove study states
Study states have never been used and are not needed. Remove them.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:17:47 -03:00
Heiner Kallweit bdd36bd975 [media] media: rc: nuvoton: remove unneeded code in nvt_process_rx_ir_data
The definition of rawir includes the initialization already.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:17:12 -03:00
Heiner Kallweit 7ac7b02345 [media] media: rc: nuvoton: simplify a few functions
Simplify a few functions.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:16:31 -03:00
Heiner Kallweit cb359a863a [media] media: rc: nuvoton: remove wake states
Wake states have never been in use and now that we can set the
wakeup sequence via sysfs there's in general no need for them.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:14:32 -03:00
Heiner Kallweit 594ccee6f0 [media] media: rc: nuvoton: clean up initialization of wakeup registers
The registers defining wakeup sequence handling are set when the
wakeup sequence is set via sysfs. There's no need to initialize them
otherwise.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:13:37 -03:00
Heiner Kallweit cb48b3698f [media] media: rc: nuvoton: remove interrupt handling for wakeup
There is a rudimentary ISR for handling interrupts generated by the
wakeup part of the chip. Interrupts however have never been enabled
in the wakeup part.
Also, now that we can set the wakeup sequence via sysfs, there's in
general no need to enable interrupts in the wakeup part.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:05:38 -03:00
Heiner Kallweit 398d9da83f [media] media: rc: nuvoton: fix rx fifo overrun handling
To detect a rx fifo overrun it's checked whether the number of elements
in the chip fifo exceeds the fifo size. This check can never return true
and is wrong.
Instead we should generate an interrupt if the fifo overruns.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 17:03:41 -03:00
Hans Verkuil d54fc3bbc2 [media] rc-main: fix kernel oops after unloading keymap module
When the rc_map table is created the char pointer of the name of the keymap
is copied to the rc_map->name field. However, this pointer points to memory
from the keymap module itself.

Since these keymap modules are not refcounted, that means anyone can call
rmmod to unload that module. Which is not a big deal because the contents of
the map is all copied to rc_map, except for the keymap name.

So after a keymap module is unloaded the name pointer has become stale. Unloading
the rc-core module will now cause a kernel oops in rc_dev_uevent().

The solution is to kstrdup the name so there are no more references to the
keymap module remaining.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-07-08 16:16:53 -03:00
Ivaylo Dimitrov 79cdad3635 ir-rx51: use hrtimer instead of dmtimer
Drop dmtimer usage for pulse timer in favor of hrtimer. That allows
removing PWM dmitimer platform data usage.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:35 -07:00
Ivaylo Dimitrov b540617698 ir-rx51: add DT support to driver
With the upcoming removal of legacy boot, lets add support to one of the
last N900 drivers remaining without it. As the driver still uses omap
dmtimer, add auxdata as well.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:23 -07:00
Ivaylo Dimitrov 3fdd1526e6 ir-rx51: use PWM framework instead of OMAP dmtimer
Convert driver to use PWM framework instead of calling dmtimer functions
directly for PWM timer. Remove paragraph about writing to the Free Software
Foundation's mailing address while at it.

Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2016-06-29 21:54:13 -07:00
Ivaylo Dimitrov 4406d52a0b ir-rx51: Fix build after multiarch changes broke it
The ir-rx51 driver for n900 has been disabled since the multiarch
changes as plat include directory no longer is SoC specific.

Let's fix it with minimal changes to pass the dmtimer calls in
pdata. Then the following changes can be done while things can
be tested to be working for each change:

1. Change the non-pwm dmtimer to use just hrtimer if possible

2. Change the pwm dmtimer to use Linux PWM API with the new
   drivers/pwm/pwm-omap-dmtimer.c and remove the direct calls
   to dmtimer functions

3. Parse configuration from device tree and drop the pdata

Cc: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: linux-media@vger.kernel.org
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
2016-06-29 21:46:31 -07:00
Kamil Debski ff42c8aa6c [media] rc: Add HDMI CEC protocol handling
Add handling of remote control events coming from the HDMI CEC bus
and the new protocol required for that.

Signed-off-by: Kamil Debski <kamil@wypas.org>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2016-06-22 08:35:55 -03:00
Max Kellermann 47cae1e1cf [media] drivers/media/rc: postpone kfree(rc_dev)
CONFIG_DEBUG_KOBJECT_RELEASE found this bug.

Signed-off-by: Max Kellermann <max@duempel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-07 11:21:04 -03:00
Olli Salonen 1869384387 [media] mceusb: add support for SMK eHome receiver
Add USB ID of SMK RXX6000 series IR receiver. Often branded as
Lenovo receiver.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-07 10:30:46 -03:00
Olli Salonen e186613aed [media] mceusb: add support for Adaptec eHome receiver
New USB ID for Adaptec eHome receiver in some HP laptops.

Signed-off-by: Olli Salonen <olli.salonen@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-07 10:30:17 -03:00
Heiner Kallweit 36ac2f3259 [media] media: rc: remove unneeded mutex in rc_register_device
Access to dev->initialized is atomic and dev->initialized isn't
accessed in any other code protected by this mutex.
Therefore we don't need to get the mutex here.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-07 10:29:49 -03:00
Rasmus Villemoes 869f076bd6 [media] ati_remote: avoid fragile snprintf use
Passing overlapping source and destination to snprintf is
fragile. Replace with a single (mostly) equivalent call. If one wants
to preserve the space preceding udev->product whether or not there was
a manufacturer, just remove udev->manufacturer from the && expression.

Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-05-07 10:27:16 -03:00
Mauro Carvalho Chehab eef8fc374c [media] mceusb: use %*ph for small buffer dumps
It makes the printk cleaner. As a side efect, it also fixes those smatch
warnings:
	drivers/media/rc/mceusb.c:590 mceusb_dev_printdata() warn: argument 6 to %02x specifier has type 'char'
	drivers/media/rc/mceusb.c:590 mceusb_dev_printdata() warn: argument 7 to %02x specifier has type 'char'

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-10 13:37:44 -03:00
Heiner Kallweit 02212001c9 [media] media: rc: nuvoton: switch attribute wakeup_data to text
Switch attribute wakeup_data from binary to a text attribute.
This makes it easier to handle in userspace and allows to
use the output of tools like mode2 almost as is to set a
wakeup sequence.
Changing to a text format and values in microseconds also
makes the userspace interface independent of the setting of
SAMPLE_PERIOD in the driver.

In addition document the new sysfs attribute in
Documentation/ABI/testing/sysfs-class-rc-nuvoton.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-05 08:22:03 -03:00
Emilio López ea05e8b4ec [media] rc: sunxi-cir: support module autoloading
MODULE_DEVICE_TABLE() is missing, so the module isn't auto-loading on
systems supporting infrared. This commit adds the missing line so it
works out of the box when built as a module and running on a sunxi
system with an infrared receiver.

Signed-off-by: Emilio López <emilio.lopez@collabora.co.uk>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 12:42:34 -03:00
Sean Young a40973ff10 [media] igorplugusb: fix leaks in error path
Since rc_allocate_device() uses kmalloc, it can returns NULL,
so need to check,  otherwise, NULL derefenrece can happen.

Reported-by: Insu Yun <wuninsu@gmail.com>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 11:44:29 -03:00
Philippe Valembois b21d29e08c [media] Fix AverMedia RM-KS remote keymap
Fix AverMedia RM-KS keymap using user guide to meet LinuxTV wiki rules.
The remote command didn't seem to change in itself since its creation: it's
just to make keys more standard and remove the FIXME.

Signed-off-by: Philippe Valembois <lephilousophe@users.sourceforge.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 08:33:41 -03:00
Heiner Kallweit 449c1fcd86 [media] media: rc: nuvoton: support reading / writing wakeup sequence via sysfs
This patch adds a binary attribute /sys/class/rc/rc?/wakeup_data which
allows to read / write the wakeup sequence.

In combination with the core extension for exposing the most recent raw
packet this allows to easily define and set a wakeup sequence.

At least on my Zotac CI321 the BIOS resets the wakeup sequence at each boot
to a factory default. Therefore I use a udev rule
SUBSYSTEM=="rc", DRIVERS=="nuvoton-cir", ACTION=="add", RUN+="<script>"
with the script basically doing
cat <stored wakeup sequence> >/sys${DEVPATH}/wakeup_data

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 08:28:41 -03:00
Mauro Carvalho Chehab 078600f514 [media] rc-core: allow calling rc_open with device not initialized
The device initialization completes only after calling
input_register_device(). However, rc_open() can be called while
the device is being registered by the input/evdev core. So, we
can't expect that rc_dev->initialized to be true.

Change the logic to don't require initialized == true at rc_open
and change the type of initialized to be atomic.

this way, we can check for it earlier where it is really needed,
without needing to lock the mutex just for testing it.

Tested with nuvoton_cir driver on a NUC5i7RYB with CIR integrated on it.

Reported-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-03 06:16:14 -03:00
Mauro Carvalho Chehab b64e10f3df [media] lirc_dev: avoid double mutex unlock
We can only unlock if mutex_lock() succeeds.

Fixes the following warning:
	drivers/media/rc/lirc_dev.c:535 lirc_dev_fop_close() error: double unlock 'mutex:&lirc_dev_lock'

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-01 12:04:48 -03:00
Mauro Carvalho Chehab fe28f5de11 [media] ati_remote: Put timeouts at the accel array
Instead of having the timeouts hardcoded, and getting only the
accel value from the array, put everything in the same place.

That simplifies the logic.

As a side effect, it also cleans several smatch errors:
	include/linux/jiffies.h:359:41: error: strange non-value function or array
	include/linux/jiffies.h:361:42: error: strange non-value function or array
(one per time_after/time_before line)

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-03-01 12:02:32 -03:00
Mauro Carvalho Chehab c73bbaa4ec [media] rc-core: don't lock device at rc_register_device()
The mutex lock at rc_register_device() was added by commit 08aeb7c9a4
("[media] rc: add locking to fix register/show race").

It is meant to avoid race issues when trying to open a sysfs file while
the RC register didn't complete.

Adding a lock there causes troubles, as detected by the Kernel lock
debug instrumentation at the Kernel:

    ======================================================
    [ INFO: possible circular locking dependency detected ]
    4.5.0-rc3+ #46 Not tainted
    -------------------------------------------------------
    systemd-udevd/2681 is trying to acquire lock:
     (s_active#171){++++.+}, at: [<ffffffff8171a115>] kernfs_remove_by_name_ns+0x45/0xa0

    but task is already holding lock:
     (&dev->lock){+.+.+.}, at: [<ffffffffa0724def>] rc_register_device+0xb2f/0x1450 [rc_core]

    which lock already depends on the new lock.

    the existing dependency chain (in reverse order) is:

    -> #1 (&dev->lock){+.+.+.}:
           [<ffffffff8124817d>] lock_acquire+0x13d/0x320
           [<ffffffff822de966>] mutex_lock_nested+0xb6/0x860
           [<ffffffffa0721f2b>] show_protocols+0x3b/0x3f0 [rc_core]
           [<ffffffff81cdaba5>] dev_attr_show+0x45/0xc0
           [<ffffffff8171f1b3>] sysfs_kf_seq_show+0x203/0x3c0
           [<ffffffff8171a6a1>] kernfs_seq_show+0x121/0x1b0
           [<ffffffff81617c71>] seq_read+0x2f1/0x1160
           [<ffffffff8171c911>] kernfs_fop_read+0x321/0x460
           [<ffffffff815abc20>] __vfs_read+0xe0/0x3d0
           [<ffffffff815ae90e>] vfs_read+0xde/0x2d0
           [<ffffffff815b1d01>] SyS_read+0x111/0x230
           [<ffffffff822e8636>] entry_SYSCALL_64_fastpath+0x16/0x76

    -> #0 (s_active#171){++++.+}:
           [<ffffffff81244f24>] __lock_acquire+0x4304/0x5990
           [<ffffffff8124817d>] lock_acquire+0x13d/0x320
           [<ffffffff81717d3a>] __kernfs_remove+0x58a/0x810
           [<ffffffff8171a115>] kernfs_remove_by_name_ns+0x45/0xa0
           [<ffffffff81721592>] remove_files.isra.0+0x72/0x190
           [<ffffffff8172174b>] sysfs_remove_group+0x9b/0x150
           [<ffffffff81721854>] sysfs_remove_groups+0x54/0xa0
           [<ffffffff81cd97d0>] device_remove_attrs+0xb0/0x140
           [<ffffffff81cdb27c>] device_del+0x38c/0x6b0
           [<ffffffffa0724b8b>] rc_register_device+0x8cb/0x1450 [rc_core]
           [<ffffffffa1326a7b>] dvb_usb_remote_init+0x66b/0x14d0 [dvb_usb]
           [<ffffffffa1321c81>] dvb_usb_device_init+0xf21/0x1860 [dvb_usb]
           [<ffffffffa13517dc>] dib0700_probe+0x14c/0x410 [dvb_usb_dib0700]
           [<ffffffff81dbb1dd>] usb_probe_interface+0x45d/0x940
           [<ffffffff81ce7e7a>] driver_probe_device+0x21a/0xc30
           [<ffffffff81ce89b1>] __driver_attach+0x121/0x160
           [<ffffffff81ce21bf>] bus_for_each_dev+0x11f/0x1a0
           [<ffffffff81ce6cdd>] driver_attach+0x3d/0x50
           [<ffffffff81ce5df9>] bus_add_driver+0x4c9/0x770
           [<ffffffff81cea39c>] driver_register+0x18c/0x3b0
           [<ffffffff81db6e98>] usb_register_driver+0x1f8/0x440
           [<ffffffffa074001e>] dib0700_driver_init+0x1e/0x1000 [dvb_usb_dib0700]
           [<ffffffff810021b1>] do_one_initcall+0x141/0x300
           [<ffffffff8144d8eb>] do_init_module+0x1d0/0x5ad
           [<ffffffff812f27b6>] load_module+0x6666/0x9ba0
           [<ffffffff812f5fe8>] SyS_finit_module+0x108/0x130
           [<ffffffff822e8636>] entry_SYSCALL_64_fastpath+0x16/0x76

    other info that might help us debug this:

     Possible unsafe locking scenario:

           CPU0                    CPU1
           ----                    ----
      lock(&dev->lock);
                                   lock(s_active#171);
                                   lock(&dev->lock);
      lock(s_active#171);

     *** DEADLOCK ***

    3 locks held by systemd-udevd/2681:
     #0:  (&dev->mutex){......}, at: [<ffffffff81ce8933>] __driver_attach+0xa3/0x160
     #1:  (&dev->mutex){......}, at: [<ffffffff81ce8941>] __driver_attach+0xb1/0x160
     #2:  (&dev->lock){+.+.+.}, at: [<ffffffffa0724def>] rc_register_device+0xb2f/0x1450 [rc_core]

In this specific case, some error happened during device init,
causing IR to be disabled.

Let's fix it by adding a var that will tell when the device is
initialized. Any calls before that will return a -EINVAL.

That should prevent the race issues.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-16 08:40:41 -02:00
Heiner Kallweit 137aa3617b [media] rc/nuvoton_cir: fix locking issue when calling nvt_disable_cir
nvt_disable_cir calls nvt_disable_logical_dev (that may sleep) and is
called from contexts holding a spinlock.
Fix this and remove the unneeded clearing of CIR_IREN as this is done
in nvt_cir_disable already.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-02 14:28:55 -02:00
Heiner Kallweit b883af30bc [media] rc/nuvoton_cir: fix locking issue when calling nvt_enable_wake
nvt_enable_wake calls nvt_select_logical_dev (that may sleep) and is called
from contexts holding a spinlock. Fix this.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-02 14:28:54 -02:00
Heiner Kallweit 842096fc40 [media] rc/nuvoton_cir: fix locking issue with nvt_enable_cir
nvt_enable_cir calls nvt_enable_logical_dev (that may sleep)
while holding a spinlock.
This patch fixes this and moves the content of nvt_enable_cir
to nvt_open as this is the only caller.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-02 14:28:37 -02:00
Heiner Kallweit e60c1e87c7 [media] media: rc: nuvoton-cir: improve locking in both interrupt handlers
Extend the locking to protect more critical actions like register accesses
in the interrupt handlers.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:53:51 -02:00
Heiner Kallweit d42fd29769 [media] media: rc: nuvoton-cir: fix interrupt handling
Only handle an interrupt if at least one combination of event bit
and related interrupt bit is set.
Previously it was just checked that at least one event bit and
at least one interrupt bit are set.

This fixes issues like the following which was caused by
interrupt sharing:
An interrupt intended for nvt_cir_isr was handled by nvt_cir_wake_isr
first and because status bit CIR_WAKE_IRSTS_IR_PENDING was set
the wake fifo was accidently cleared.

This patch also fixes the bug that nvt_cir_wake_isr returned IRQ_HANDLED
even if it detected that the (shared) interrupt was meant for another
handler.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:51:33 -02:00
Heiner Kallweit 88205f01fe [media] media: rc: nuvoton-cir: fix wakeup interrupt bits
Most likely a copy & paste error.
The wakeup interrupt supports less triggering events.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:50:47 -02:00
Heiner Kallweit fb2b006575 [media] media: rc: nuvoton-cir: add locking to calls of nvt_enable_wake
Add locking to nvt_enable_wake calls.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:49:55 -02:00
Heiner Kallweit 3f1321cbaa [media] media: rc: nuvoton-cir: improve nvt_hw_detect
Check for the case that no Nuvoton chip is found on either EFM port.
Also move the position of nvt_efm_disable to reduce the time the
EFM ports are locked.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-02-01 08:49:09 -02:00
Heiner Kallweit fb16aaf58c [media] nuvoton-cir: fix setting ioport base address
At least on Zotac CI321 ACPI provides an ioport range for the wake up part
but accessing these ioports has no effect.
Instead the ioport base address is set to another value already
(0xa20 in my case) and accessing this ioport range works.

Therefore set a new ioport base address only if the current ioport base
address is 0 (register reset default).

The need to use the existing base address instead of trying to set
an own one doesn't seem to be limited to this specific device as other
drivers like hwmon/nct6775 do it the same way.

This change was successfully tested on the mentioned device.
And the change should be generic enough to not break the driver for
other chips (however due to lack of appropriate hardware I wasn't
able to test this).

[mchehab@osg.samsung.com: Tested on Intel NUC NUC5i7RYB with BIOS
 version RYBDWi35.86A.0350.2015.0812.1722]

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Tested-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:42 -02:00
Heiner Kallweit d790c9b93b [media] nuvoton-cir: remove unneeded call to nvt_set_cir_iren
Calling nvt_set_cir_iren separately is not needed as this is done
by nvt_cir_regs_init.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:41 -02:00
Heiner Kallweit 0c6fbfdf86 [media] nuvoton-cir: remove unneeded EFM operation in nvt_cir_isr
Selecting the logical device in the interrupt handler is not needed
as no configuration register is accessed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:41 -02:00
Heiner Kallweit ccca00d6d7 [media] nuvoton-cir: improve logical device handling
Only enable the logical devices after the registers have been initialized.

The call to nvt_enable_logical_dev in nvt_resume is not needed as this is
done implicitely by nvt_cir_regs_init now.

[mchehab@osg.samsung.com: fixed multiline comment to kernel CodingStyle]
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:40 -02:00
Heiner Kallweit 0890655c29 [media] nuvoton-cir: factor out logical device enabling
Factor out enabling of a logical device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:40 -02:00
Heiner Kallweit f2c2ba0e25 [media] nuvoton-cir: use IR_DEFAULT_TIMEOUT and consider SAMPLE_PERIOD
Switch to using the recently introduced IR default timeout value
(IR_DEFAULT_TIMEOUT) and consider the value of SAMPLE_PERIOD
when calculating the limit count register value.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:39 -02:00
Heiner Kallweit e1a7d981cf [media] nuvoton-cir: fix clearing wake fifo
At least on NVT6779D clearing the wake fifo works in learning mode only
(although this condition is not mentioned in the chip spec).
Setting the clear fifo bit has no effect in wake up mode.
Even if clearing the wake fifo should work in wake up mode on other
chips this workaround doesn't hurt.
If needed the caller of nvt_clear_cir_wake_fifo has to take care
of locking.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:45:35 -02:00
Heiner Kallweit a17ede9ac1 [media] nuvoton-cir: factor out logical device disabling
Factor out disabling of a logical device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:44:24 -02:00
Heiner Kallweit 1feac493b0 [media] nuvoton-cir: simplify nvt_cir_tx_inactive
Simplify nvt_cir_tx_inactive.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:44:19 -02:00
Heiner Kallweit 7a89836e99 [media] nuvoton-cir: simplify nvt_select_logical_ dev
Use nvt_cr_write to simplify nvt_select_logical_ dev.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:44:14 -02:00
Heiner Kallweit 3def9ad6d3 [media] nuvoton-cir: use request_muxed_region for accessing EFM registers
The two EFM ioports are accessed by drivers for other parts of the Nuvoton
Super-IO chips too. Therefore access to these ioports needs to be
protected by using request_muxed_region (like it's implemented e.g. in
hwmon/nct6775 already).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 15:44:06 -02:00
Heiner Kallweit 464254e5db [media] media: rc: raw: improve FIFO handling
The FIFO is used for ir_raw_event records, however for some historic
reason the FIFO is used on a per byte basis. IMHO this adds unneeded
complexity. Therefore set up the FIFO for ir_raw_event records.

This also allows to define the FIFO statically as part of
ir_raw_event_ctrl instead of having to allocate the FIFO dynamically.
In addition:

- When writing into the FIFO and it's full return ENOSPC instead of
  ENOMEM thus making it easier to tell between "FIFO full" and
  "Dynamic memory allocation failed" when the error is propagated to
  a higher level.
  Also add an error message.

- When reading from the FIFO check whether it's empty.
  This is not strictly needed here but kfifo_out is annotated
  "must check" anyway.

Successfully tested it with the nuvoton-cir driver.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 12:38:09 -02:00
Heiner Kallweit 33cb54015f [media] media: rc: nuvoton: mark wakeup-related resources
When requesting resources use different names for the normal and
the wakeup part. This makes it easier to interpret the output
of e.g. /proc/interrupts and /proc/ioports.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2016-01-25 12:32:42 -02:00
Chen-Yu Tsai 768acf46e1 [media] rc: sunxi-cir: Initialize the spinlock properly
The driver allocates the spinlock but fails to initialize it correctly.
The kernel reports a BUG indicating bad spinlock magic when spinlock
debugging is enabled.

Call spin_lock_init() on it to initialize it correctly.

Fixes: b4e3e59fb5 ("[media] rc: add sunxi-ir driver")

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-23 15:51:40 -02:00
Mauro Carvalho Chehab c77adf214b [media] ir-lirc-codec.c: don't leak lirc->drv-rbuf
As reported by kmemleak:

	unreferenced object 0xffff8802adae0ba0 (size 192):
	  comm "modprobe", pid 3024, jiffies 4296503588 (age 324.368s)
	  hex dump (first 32 bytes):
	    00 00 00 00 ad 4e ad de ff ff ff ff 00 00 00 00  .....N..........
	    ff ff ff ff ff ff ff ff c0 48 25 a0 ff ff ff ff  .........H%.....
	  backtrace:
	    [<ffffffff82278c8e>] kmemleak_alloc+0x4e/0xb0
	    [<ffffffff8153c08c>] kmem_cache_alloc_trace+0x1ec/0x280
	    [<ffffffffa0250f0d>] ir_lirc_register+0x8d/0x7a0 [ir_lirc_codec]
	    [<ffffffffa07372b8>] ir_raw_event_register+0x318/0x4b0 [rc_core]
	    [<ffffffffa07351ed>] rc_register_device+0xf2d/0x1450 [rc_core]
	    [<ffffffffa13c5451>] au0828_rc_register+0x7d1/0xa10 [au0828]
	    [<ffffffffa13b0dc2>] au0828_usb_probe+0x6c2/0xcf0 [au0828]
	    [<ffffffff81d7619d>] usb_probe_interface+0x45d/0x940
	    [<ffffffff81ca7004>] driver_probe_device+0x454/0xd90
	    [<ffffffff81ca7a61>] __driver_attach+0x121/0x160
	    [<ffffffff81ca141f>] bus_for_each_dev+0x11f/0x1a0
	    [<ffffffff81ca5d4d>] driver_attach+0x3d/0x50
	    [<ffffffff81ca5039>] bus_add_driver+0x4c9/0x770
	    [<ffffffff81ca944c>] driver_register+0x18c/0x3b0
	    [<ffffffff81d71e58>] usb_register_driver+0x1f8/0x440
	    [<ffffffffa13680b7>] 0xffffffffa13680b7

	0xf3d is in ir_lirc_register (drivers/media/rc/ir-lirc-codec.c:348).
	343		drv = kzalloc(sizeof(struct lirc_driver), GFP_KERNEL);
	344		if (!drv)
	345			return rc;
	346
	347		rbuf = kzalloc(sizeof(struct lirc_buffer), GFP_KERNEL);
	348		if (!rbuf)
	349			goto rbuf_alloc_failed;
	350
	351		rc = lirc_buffer_init(rbuf, sizeof(int), LIRCBUF_SIZE);
	352		if (rc)

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-12-21 14:59:36 -02:00
Heiner Kallweit c1500ba0b6 [media] media: rc: remove unneeded code
Now that that the decoder modules are loaded on-demand we can move
loading the lirc module to rc_register_device directly and remove
unneeded functions and comments.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
2015-12-03 15:01:11 -02:00
Heiner Kallweit d80ca8bd71 [media] media: rc: move check whether a protocol is enabled to the core
Checking whether a protocol is enabled and calling the related decoder
functions should be done by the rc core, not the protocol handlers.

Properly handle lirc considering that no protocol bit is set for lirc.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:39:17 -02:00
Heiner Kallweit acc1c3c688 [media] media: rc: load decoder modules on-demand
Remove code for unconditional decoder module loading (except lirc).

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:38:41 -02:00
Heiner Kallweit 53df877717 [media] media: rc: constify struct proto_names
Declare struct proto_names and its member name as const.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:38:14 -02:00
Heiner Kallweit 9f0bf366d7 [media] media: rc: preparation for on-demand decoder module loading
Prepare on-demand decoder module loading by adding a module_name member
to struct proto_names and introducing the related load function.

After this patch of the series the decoder modules are still loaded
unconditionally.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:37:40 -02:00
Heiner Kallweit 93cffffc18 [media] media: rc: fix decoder module unloading
Currently, if a decoder module is unloadad, the respective protocol
is still shown as enabled (if it was enabled before).
Fix this by resetting the respective protocol bits if a decoder
module is unloaded.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 11:36:29 -02:00
Heiner Kallweit 4dc0e908a5 [media] media: rc-core: simplify logging in rc_register_device
Simplify the logging.

I had some doubts about using the elvis operator as it's GNU extension.
However GNU extensions are explicitely allowed and this operator is
used at several places in the kernel code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:38:19 -02:00
Heiner Kallweit 211477fe35 [media] media: rc: nuvoton-cir: replace nvt_pr with dev_ functions
Replace nvt_pr with the respective dev_ functions thus slightly
simplifying the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:37:34 -02:00
Heiner Kallweit af08233433 [media] media: rc: nuvoton-cir: switch chip detection message to info level
Switch the info about the detected chip type from debug to info level
as it might be useful not only for debugging purposes.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:37:11 -02:00
Heiner Kallweit 068fb7ddd5 [media] media: rc: nuvoton-cir: simplify debug code
Instead of explicitely checking debug use nvt_dbg like in other parts
of the driver thus simplifying the code.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:36:48 -02:00
Heiner Kallweit d0b528d5f7 [media] media: rc: nuvoton-cir: add support for the NCT6779D
Add support for the NCT6779D. It's found e.g. on the Zotac CI321 mini-pc
and I successfully tested it on this device.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:36:15 -02:00
Heiner Kallweit 6a5a336079 [media] media: rc: nuvoton-cir: make nvt_hw_detect void
nvt_hw_detect always returns 0, therefore make it return void.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:35:54 -02:00
Heiner Kallweit b5cf725c04 [media] media: rc: nuvoton-cir: improve chip detection
Make the chip detection code more similar to the one used for the
same chips in watchdog/w83627hf_wdt.c and hwmon/w83627ehf.c.

Apart from better maintainability we gain
- unified naming of chips (e.g. 677C -> NCT6776F)
- driver works with all revisions of the chips
  (least 4 bits of id are masked)

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:35:32 -02:00
Heiner Kallweit 099256e58e [media] media: rc: nuvoton-cir: switch resource handling to devm functions
Switch to managed resource handling using the devm_ functions.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:34:28 -02:00
Heiner Kallweit d5b04311cb [media] media: rc: nuvoton-cir: remove unneeded lock
chip_major / chip_minor are accessed sequentially in probe only.
Therefore no lock is needed.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:34:02 -02:00
Heiner Kallweit 2bbf9e061a [media] media: rc: nuvoton-cir: remove unneeded IRQ_RETVAL usage
Using IRQ_RETVAL is unneeded here. IRQ_NONE / IRQ_HANDLED can be
returned directly.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:33:27 -02:00
Heiner Kallweit 1b0621af50 [media] media: rc: ir-sharp-decoder: add support for Denon variant of the protocol
Denon also uses the Sharp protocol, however with different check bits.

It would have been also possible to add this as a separate protocol
but this may not be worth the effort.

Successfully tested with a Denon RC-1002 remote control.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:32:35 -02:00
Tina Ruchandani dd4c22a61e [media] rc-core: Remove 'struct timeval' usage
streamzap uses 'struct timeval' to store the start time of a signal for
gap tracking. struct timeval uses a 32-bit seconds representation which
will overflow in year 2038 and beyond. Replace struct timeval with ktime_t
which uses a 64-bit seconds representation and is 2038 safe. This patch
uses ktime_get_real() preserving the use of wall-clock time in the
original code.

Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 09:31:45 -02:00
Russell King 2ff56fadd9 [media] rc: allow rc modules to be loaded if rc-main is not a module
rc-main mistakenly uses #ifdef MODULE to determine whether it should
load the rc keymap modules.  This symbol is only defined if rc-main
is being built as a module itself, and bears no relation to whether
the rc keymaps are modules.

Fix this to use CONFIG_MODULES instead.

Fixes: 631493ecac ("[media] rc-core: merge rc-map.c into rc-main.c")

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 08:41:06 -02:00
Eric Nelson 3fb136f339 [media] rc: gpio-ir-recv: add timeout on idle
Many decoders require a trailing space (period without IR illumination)
to be delivered before completing a decode.

Since the gpio-ir-recv driver only delivers events on gpio transitions,
a single IR symbol (caused by a quick touch on an IR remote) will not
be properly decoded without the use of a timer to flush the tail end
state of the IR receiver.

This patch initializes and uses a timer and the timeout field of rcdev
to complete the stream and allow decode.

The timeout can be overridden through the use of the LIRC_SET_REC_TIMEOUT
ioctl.

Signed-off-by: Eric Nelson <eric@nelint.com>
Acked-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 07:46:33 -02:00
Sudeep Holla a2d1e1ed18 [media] media: st-rc: remove misuse of IRQF_NO_SUSPEND flag
The device is set as wakeup capable using proper wakeup API but the
driver misuses IRQF_NO_SUSPEND to set the interrupt as wakeup source
which is incorrect.

This patch removes the use of IRQF_NO_SUSPEND flags replacing it with
enable_irq_wake instead.

Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: kernel@stlinux.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-11-19 06:46:05 -02:00
Mauro Carvalho Chehab eb4b0ec75e [media] include/media: move platform_data to linux/platform_data/media
Let's not mix platform_data headers with the core headers. Instead, let's
create a subdir at linux/platform_data and move the headers to that
common place, adding it to MAINTAINERS.

The headers were moved with:
	mkdir include/linux/platform_data/media/; git mv include/media/gpio-ir-recv.h include/media/ir-rx51.h include/media/mmp-camera.h include/media/omap1_camera.h include/media/omap4iss.h include/media/s5p_hdmi.h include/media/si4713.h include/media/sii9234.h include/media/smiapp.h include/media/soc_camera.h include/media/soc_camera_platform.h include/media/timb_radio.h include/media/timb_video.h include/linux/platform_data/media/

And the references fixed with this script:
    MAIN_DIR="linux/platform_data/"
    PREV_DIR="media/"
    DIRS="media/"

    echo "Checking affected files" >&2
    for i in $DIRS; do
	for j in $(find include/$MAIN_DIR/$i -type f -name '*.h'); do
		 n=`basename $j`
		git grep -l $n
	done
    done|sort|uniq >files && (
	echo "Handling files..." >&2;
	echo "for i in \$(cat files|grep -v Documentation); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "perl -ne 's,(include [\\\"\\<])$PREV_DIR($i)([\\\"\\>]),\1$MAIN_DIR$j\2\3,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done";
	);
	echo "Handling documentation..." >&2;
	echo "for i in MAINTAINERS \$(cat files); do cat \$i | \\";
	(
		cd include/$MAIN_DIR;
		for j in $DIRS; do
			for i in $(ls $j); do
				echo "  perl -ne 's,include/$PREV_DIR($i)\b,include/$MAIN_DIR$j\1,; print \$_' |\\";
			done;
		done;
		echo "cat > a && mv a \$i; done"
	);
    ) >script && . ./script

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
2015-11-17 06:58:42 -02:00
Sudeep Holla 54bec3970c [media] ir-hix5hd2: drop the use of IRQF_NO_SUSPEND
This driver doesn't claim the IR transmitter to be wakeup source. It
even disables the clock and the IR during suspend-resume cycle.

This patch removes yet another misuse of IRQF_NO_SUSPEND.

Cc: Patrice Chotard <patrice.chotard@st.com>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Guoxiong Yan <yanguoxiong@huawei.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-10-22 15:48:24 -02:00
Linus Torvalds 9cfcc658da media updates for v4.3-rc1
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Merge tag 'media/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:
 - new DVB frontend drivers: ascot2e, cxd2841er, horus3a, lnbh25
 - new HDMI capture driver: tc358743
 - new driver for NetUP DVB new boards (netup_unidvb)
 - IR support for DVBSky cards (smipcie-ir)
 - Coda driver has gain macroblock tiling support
 - Renesas R-Car gains JPEG codec driver
 - new DVB platform driver for STi boards: c8sectpfe
 - added documentation for the media core kABI to device-drivers DocBook
 - lots of driver fixups, cleanups and improvements

* tag 'media/v4.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (297 commits)
  [media] c8sectpfe: Remove select on undefined LIBELF_32
  [media] i2c: fix platform_no_drv_owner.cocci warnings
  [media] cx231xx: Use wake_up_interruptible() instead of wake_up_interruptible_nr()
  [media] tc358743: only queue subdev notifications if devnode is set
  [media] tc358743: add missing Kconfig dependency/select
  [media] c8sectpfe: Use %pad to print 'dma_addr_t'
  [media] DocBook media: Fix typo "the the" in xml files
  [media] tc358743: make reset gpio optional
  [media] tc358743: set direction of reset gpio using devm_gpiod_get
  [media] dvbdev: document most of the functions/data structs
  [media] dvb_frontend.h: document the struct dvb_frontend
  [media] dvb-frontend.h: document struct dtv_frontend_properties
  [media] dvb-frontend.h: document struct dvb_frontend_ops
  [media] dvb: Use DVBFE_ALGO_HW where applicable
  [media] dvb_frontend.h: document struct analog_demod_ops
  [media] dvb_frontend.h: Document struct dvb_tuner_ops
  [media] Docbook: Document struct analog_parameters
  [media] dvb_frontend.h: get rid of dvbfe_modcod
  [media] add documentation for struct dvb_tuner_info
  [media] dvb_frontend: document dvb_frontend_tune_settings
  ...
2015-09-05 18:21:14 -07:00
David Härdeman 72c5b7b24f Revert "[media] rc: rc-ir-raw: Add scancode encoder callback"
This reverts commit 9869da5bac.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:04:49 -03:00
David Härdeman 86f216640e Revert "[media] rc: rc-ir-raw: Add Manchester encoder (phase encoder) helper"
This reverts commit 1d971d927e.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:03:15 -03:00
David Härdeman e49b361d4f Revert "[media] rc: ir-rc5-decoder: Add encode capability"
This reverts commit a0466f15b4.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:03:09 -03:00
David Härdeman 70e7112e7d Revert "[media] rc: ir-rc6-decoder: Add encode capability"
This reverts commit cf257e288a.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:03:04 -03:00
David Härdeman 3a03b86fdc Revert "[media] rc: rc-core: Add support for encode_wakeup drivers"
This reverts commit 0d830b2d12.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:03:00 -03:00
David Härdeman 8abfebdb00 Revert "[media] rc: rc-loopback: Add loopback of filter scancodes"
This reverts commit 2e4ebde269.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:02:53 -03:00
David Härdeman 23f28f2adc Revert "[media] rc: nuvoton-cir: Add support for writing wakeup samples via sysfs filter callback"
This reverts commit da7ee60b03.

The current code is not mature enough, the API should allow a single
protocol to be specified. Also, the current code contains heuristics
that will depend on module load order.

Signed-off-by: David Härdeman <david@hardeman.nu>
Acked-by: Antti Seppälä <a.seppala@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-19 07:02:33 -03:00
David Härdeman dd6ff6a05b [media] rc-core: improve the lirc protocol reporting
Commit 275ddb40bc removed the lirc
"protocol" but kept backwards compatibility by always listing
the protocol as present and enabled. This patch further improves
the logic by only listing the protocol if the lirc module is loaded
(or if lirc is builtin).

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-08-11 13:18:13 -03:00
David Härdeman f459aec2bc [media] lmedm04: NEC scancode cleanup
This changes the keymap back to the state before commit 616a4b83
and changes the driver to use full NEC32 scancodes following the
instructions provided by Malcolm Priestley <tvboxspy@gmail.com>.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:26:15 -03:00
David Härdeman 275ddb40bc [media] rc-core: remove the LIRC "protocol"
The LIRC protocol was always a bad fit and if we're ever going to expose
protocol numbers in a user-space API, it'd be better to get rid of the
LIRC "protocol" first.

The sysfs API is kept backwards compatible by always listing the lirc
protocol as present and enabled.

Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:26:15 -03:00
David Härdeman fcb1309786 [media] rc-core: use an IDA rather than a bitmap
This patch changes rc-core to use the kernel facilities that are already
available for handling unique numbers instead of rolling its own bitmap
stuff.

Signed-off-by: David Härdeman <david@hardeman.nu>
Tested-by: Stefan Lippers-Hollmann <s.l-h@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:26:15 -03:00
David Härdeman a66b0c41ad [media] rc-core: fix remove uevent generation
The input_dev is already gone when the rc device is being unregistered
so checking for its presence only means that no remove uevent will be
generated.

Cc: stable@kernel.org
Signed-off-by: David Härdeman <david@hardeman.nu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:26:14 -03:00
Hans Verkuil cfcffe397f [media] rc/Kconfig: fix indentation problem
The RC_ST and IR_SUNXI entries have weird indentation, and the RC_ST
entry is actually malformed. Fix it.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-07-06 08:25:48 -03:00
Mauro Carvalho Chehab 846793b3f9 [media] use CONFIG_PM_SLEEP for suspend/resume
Using CONFIG_PM_SLEEP suppress the warnings when the driver is
compiled without PM sleep functions:

drivers/media/rc/st_rc.c:338:12: warning: ‘st_rc_suspend’ defined but not used [-Wunused-function]
drivers/media/rc/st_rc.c:359:12: warning: ‘st_rc_resume’ defined but not used [-Wunused-function]

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
2015-06-24 08:38:20 -03:00
Jan Klötzke 1c35cf9cca [media] rc/keymaps: add keytable for Twinhan DTV CAB CI
This RC map was taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/). It is used solely by the respective
mantis based card because the encoding is not known.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 11:52:25 -03:00
Jan Klötzke 578e95dd38 [media] rc/keymaps: add keytable for Terratec Cinergy S2 HD
This RC map was taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/). It is used solely by the respective
mantis based card because the encoding is not known.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 11:51:41 -03:00
Jan Klötzke 4862690d82 [media] rc/keymaps: add keytable for Terratec Cinergy C PCI
This RC map was taken from Christoph Pinkl's patch
(http://patchwork.linuxtv.org/patch/7217/). It is used solely by the respective
mantis based card because the encoding is not known.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 11:51:01 -03:00
Jan Klötzke 9b6a065e79 [media] rc/keymaps: add RC keytable for TechniSat TS35
The TS35 remote is distributed with TechniSat CableStar HD2 cards (mantis
chipset). The exact protocol type is unknown, making this rc map probably only
usable by mantis cards.

Signed-off-by: Jan Klötzke <jan@kloetzke.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 11:50:04 -03:00
Heiko Stübner 64657066f5 [media] rc: gpio-ir-recv: don't sleep in irq handler
Don't allow sleep when getting the gpio value in the irq-handler.
On my rk3288 board this results in might_sleep warnings when receiving
data like:

BUG: sleeping function called from invalid context at drivers/gpio/gpiolib.c:1531
in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/0
CPU: 0 PID: 0 Comm: swapper/0 Tainted: P                4.1.0-rc5+ #2011
Hardware name: Rockchip (Device Tree)
[<c00189a0>] (unwind_backtrace) from [<c0013b04>] (show_stack+0x20/0x24)
[<c0013b04>] (show_stack) from [<c0757970>] (dump_stack+0x8c/0xbc)
[<c0757970>] (dump_stack) from [<c0053188>] (___might_sleep+0x238/0x284)
[<c0053188>] (___might_sleep) from [<c0053264>] (__might_sleep+0x90/0xa4)
[<c0053264>] (__might_sleep) from [<c02ff4ac>] (gpiod_get_raw_value_cansleep+0x28/0x44)
[<c02ff4ac>] (gpiod_get_raw_value_cansleep) from [<bf0363c4>] (gpio_ir_recv_irq+0x24/0x6c [gpio_ir_recv])
[<bf0363c4>] (gpio_ir_recv_irq [gpio_ir_recv]) from [<c008a78c>] (handle_irq_event_percpu+0x164/0x550)
[<c008a78c>] (handle_irq_event_percpu) from [<c008abc4>] (handle_irq_event+0x4c/0x6c)
[<c008abc4>] (handle_irq_event) from [<c008df88>] (handle_edge_irq+0x128/0x150)
[<c008df88>] (handle_edge_irq) from [<c0089edc>] (generic_handle_irq+0x30/0x40)
[<c0089edc>] (generic_handle_irq) from [<c02fc4cc>] (rockchip_irq_demux+0x158/0x210)
[<c02fc4cc>] (rockchip_irq_demux) from [<c0089edc>] (generic_handle_irq+0x30/0x40)
[<c0089edc>] (generic_handle_irq) from [<c008a058>] (__handle_domain_irq+0x98/0xc0)
[<c008a058>] (__handle_domain_irq) from [<c00094a4>] (gic_handle_irq+0x4c/0x70)
[<c00094a4>] (gic_handle_irq) from [<c0014684>] (__irq_svc+0x44/0x5c)

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-10 07:48:39 -03:00
Mauro Carvalho Chehab 95cf60aa55 [media] ir: Fix IR_MAX_DURATION enforcement
Don't assume that IR_MAX_DURATION is a bitmask. It isn't.

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-06-05 11:26:42 -03:00