- 22 Nov, 2016 26 commits
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Nikhil Devshatwar authored
Current driver configures the line mode of the DEI clients from the open function directly. Even if the newly created context is not yet scheduled, it updates some of the VPDMA registers. This causes a problem in multi instance use case where just opening the m2m device second time causes the running job to stall. This happens especially if the source buffers used are NV12. While all other configuration is being written to context specific shadow registers, only line mode configuration is happening directly. As there is no shadow register for line mode configuration, it's better to separate the config_mode setting and line_mode setting. Call the new "set_line_modes" functions only when actually loading the mmrs. This makes sure that no non-running job will write to the registers directly. Signed-off-by:
Nikhil Devshatwar <nikhil.nd@ti.com> Signed-off-by:
Benoit Parrot <bparrot@ti.com> Signed-off-by:
Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by:
Mauro Carvalho Chehab <mchehab@s-opensource.com>
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Nikhil Devshatwar authored
VPDMA IRQs are registered for multiple lists When clearing an IRQ for a list interrupt, all the IRQs for the individual lists are to be cleared separately. Signed-off-by:
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Nikhil Devshatwar authored
Writing to the "VPDMA list attribute" register is considered as a list post. This informs the VPDMA firmware to load the list from the address which should be taken from the "VPDMA list address" register. As these two register writes are dependent, it is important that the two writes happen in atomic manner. This ensures multiple slices (which share same VPDMA) can post lists asynchronously and all of them point to the correct addresses. Slightly modified to implementation for the original patch to use spin_lock instead of mutex as the list post is also called from interrupt context. Signed-off-by:
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Nikhil Devshatwar authored
Whenever VPDMA processes a data descriptor of a list, it processes it and sets up the channel for the DMA transaction. List manager holds the descriptor in the list until the DMA is complete. If sync_on_channel descriptor, or another descriptor for the same channel is present in the FIFO, list manager keeps them until the current channel is free. When the capture stream is closed suddenly while there are pending descriptors in the FIFO (streamON failed, application killed), it would keep the VPDMA in a busy state. Any further list post would fail with EBUSY. To avoid this, drivers need to stop the current processing list and cleanup all the resources VPDMA has taken and also clear the internal FSM of list manager. The state machine is cleared by issuing channel specific abort descriptor. Therefore, the vpdma_list_cleanup accepts an array of channels for which abort_channel descriptors should be posted. It is driver's responsibility to post for all the channels or the channels which were used in the last context. Signed-off-by:
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Nikhil Devshatwar authored
Add a helper function to be able to set the maximum VPDMA transfer size to limit potential buffer overrun. Added enums for max_width and max_height fields of the outbound data descriptor. Changed vpdma_add_out_dtd to accept two more arguments for max width and height. Make use of different max width & height sets for different of capture module (i.e. slices). Signed-off-by:
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Harinarayan Bhatta authored
Free vpdma buffers in vpe_release. Otherwise it was generating random backtrace. Signed-off-by:
Harinarayan Bhatta <harinarayan@ti.com> Signed-off-by:
Somnath Mukherjee <somnath@ti.com> Signed-off-by:
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Nikhil Devshatwar authored
get_q_data can be called with different values for type e.g. vpe_try_crop calls it with the buffer type which gets passed from user space Framework doesn't check wheather its correct type or not If user space passes wrong type, kernel should not crash. Return NULL when the passed type is invalid. Signed-off-by:
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Harinarayan Bhatta authored
Increasing max buffer height and width to allow for padded buffers. Signed-off-by:
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Nikhil Devshatwar authored
The video source can generate the data in the SEQ_TB buffer format. In the case of TI SoC, the IVA_HD can generate the interlaced content in the SEQ_TB buffer format. This is the format where the top and bottom field data can be contained in a single buffer. For example, for NV12, interlaced format, the data in Y buffer will be arranged as Y-top followed by Y-bottom. And likewise for UV plane. Also, queuing one buffer of SEQ_TB is equivalent to queuing two different buffers for top and bottom fields. Driver needs to take care of this when handling source buffer lists. Signed-off-by:
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Nikhil Devshatwar authored
Current VPE driver does not start the job until all the buffers for a transaction are queued. When running in multiple context, this might increase the processing latency. Alternate solution would be to try to continue the same context as long as buffers for the transaction are ready; else switch the context. This may increase number of context switches but it reduces latency significantly. In this approach, the job_ready always succeeds as long as there are buffers on the CAPTURE and OUTPUT stream. Processing may start immediately as the first 2 iterations don't need extra source buffers. Shift all the source buffers after each iteration and remove the oldest buffer. Also, with this removes the constraint of pre buffering 3 buffers before call to STREAMON in case of de-interlacing. Signed-off-by:
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Archit Taneja authored
The motion detection block requires 3 fields to create the motion vector data. This means that using the default method the first progressive frame is only generated after 3rd field is consumed. Hence by default for N input field we would generate N - 2 progressive frames. In order to generate N progressive frames from N fields we use the line averaging mode of the de-interlacer for the first 2 fields and then revert back to the preferred Edge Directed Interpolation method (using the motion vector). Thus creating 2 line averaged frames + N - 2 motion based frames for a total of N frames. Signed-off-by:
Archit Taneja <archit@ti.com> Signed-off-by:
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Benoit Parrot authored
On DRA7 since l3_noc event are being reported it was found that when the write descriptor was being written it was consistently causing bus error events. The write address was improperly programmed. Signed-off-by:
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Benoit Parrot authored
Add a helper to set the background color during vpdma transfer. This is needed when VPDMA is generating 32 bits RGB format to have the Alpha channel set to an appropriate value. Signed-off-by:
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Benoit Parrot authored
The VPDMA (Video Port DMA) as found in devices such as DRA7xx is used for both the Video Processing Engine (VPE) and the Video Input Port (VIP). Some devices may have multiple VIP instances each with its own VPDMA engine. Within VIP two slices can use a single VPDMA engine simultaneously. So support for multi instances and multiple clients has been added to VPDMA. Needed modification to the existing helper functions were then reflected to VPE. Multi-clients registers offset have also been added in preparation. Signed-off-by:
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Benoit Parrot authored
The VPDMA (Video Port DMA) as found in devices such as DRA7xx is used for both the Video Processing Engine (VPE) and the Video Input Port (VIP). In preparation for this we need to turn vpdma into its own kernel module. Signed-off-by:
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Mauro Carvalho Chehab authored
While checking why we need i386 checking, I noticed that the serial code referred at the driver was moved to another place. Update it to make clear from where such code came from. Signed-off-by: -
Sean Young authored
Signed-off-by:Sean Young <sean@mess.org>
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Mauro Carvalho Chehab authored
There are a few checkpatch complains here. As we're about to promote this driver out of staging, address them. Signed-off-by: -
Sean Young authored
This makes transmission more reliable and the code much cleaner. Signed-off-by:
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Sean Young authored
Tested with a homebrew serial ir. Remove last remmants of the nslu2 which could not be enabled, and fix checkpatch warnings. Signed-off-by:
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Hans Verkuil authored
Some CEC adapters will receive messages that they initiated. Add a check that will ignore such messages. Most hardware behaves correctly in this respect, but I have seen adapters that don't, so just filter this out in the framework. Signed-off-by:
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Minghsiu Tsai authored
It can fix known problems with embedded video_device structs. Signed-off-by:
Minghsiu Tsai <minghsiu.tsai@mediatek.com> Signed-off-by:
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Colin Ian King authored
Trivial fix to spelling mistake "unnsupported" to "unsupported" in debug message. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Hans Verkuil authored
The maximum 'Max TMDS Rate' in the HDMI VSDB block is 340 MHz, not 600. Higher rates are advertised in the HDMI Forum VSDB block. So lower the Max TMDS rate in the HDMI VSDB block that the vivid driver uses to 300 MHz, which is typical of most HDMI 1.4b devices. Signed-off-by:
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Wei Yongjun authored
Fix to return error code -ENODEV from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Wei Yongjun <weiyongjun1@huawei.com> Signed-off-by:
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Mauro Carvalho Chehab authored
Linux 4.9-rc6 * tag 'v4.9-rc6': (305 commits) Linux 4.9-rc6 ext4: sanity check the block and cluster size at mount time fscrypto: don't use on-stack buffer for key derivation fscrypto: don't use on-stack buffer for filename encryption i2c: i2c-mux-pca954x: fix deselect enabling for device-tree kvm: x86: merge kvm_arch_set_irq and kvm_arch_set_irq_inatomic KVM: x86: fix missed SRCU usage in kvm_lapic_set_vapic_addr KVM: async_pf: avoid recursive flushing of work items kvm: kvmclock: let KVM_GET_CLOCK return whether the master clock is in use KVM: Disable irq while unregistering user notifier KVM: x86: do not go through vcpu in __get_kvmclock_ns MAINTAINERS: Add LED subsystem co-maintainer crypto: algif_hash - Fix NULL hash crash with shash powerpc/mm: Fix missing update of HID register on secondary CPUs KVM: arm64: Fix the issues when guest PMCCFILTR is configured arm64: KVM: pmu: Fix AArch32 cycle counter access powerpc/mm/radix: Invalidate ERAT on tlbiel for POWER9 DD1 i2c: digicolor: use clk_disable_unprepare instead of clk_unprepare ipmi/bt-bmc: change compatible node to 'aspeed, ast2400-ibt-bmc' Revert "drm/mediatek: set vblank_disable_allowed to true" ...
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- 21 Nov, 2016 12 commits
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Paul Bolle authored
Kernel source files need not include <linux/kconfig.h> explicitly because the top Makefile forces to include it with: -include $(srctree)/include/linux/kconfig.h Remove another reduntdant include, that managed to sneak by commit 97139d4a ("treewide: remove redundant #include <linux/kconfig.h>"). Signed-off-by:
Paul Bolle <pebolle@tiscali.nl> Signed-off-by:
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Sean Young authored
Many lirc drivers have their own receive buffers which are freed on unplug (e.g. ir_lirc_unregister). This means that ir->buf->wait_poll will be freed directly after unplug so do not remove yourself from the wait queue. Signed-off-by:
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Sean Young authored
If you unplug an lirc device while reading from it, you will get an use after free as the cdev is freed while still in use. Signed-off-by:
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Sean Young authored
[ 101.457944] ------------[ cut here ]------------ [ 101.457954] WARNING: CPU: 3 PID: 1819 at kernel/sched/core.c:7708 __might_sleep+0x7e/0x80 [ 101.457960] do not call blocking ops when !TASK_RUNNING; state=1 set at [<ffffffffc0364bc2>] lirc_dev_fop_read+0x292/0x4e0 [lirc_dev] Signed-off-by:
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Sean Young authored
In learning mode, you can get much longer messages which can run out of lengths. The usb message will slightly larger. Signed-off-by:
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Sean Young authored
The wideband receiver is a little awkward on the redrat3. Data arrives on a different endpoint, and the learning command must be reissued every time data is learned. Signed-off-by:
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Sean Young authored
If redrat3_delete() is called, ensure ep_in and udev members are set up so we don't dereference null in the error path. Also ensure that rc dev device exists before we enable the receiver and that the led urb exists before we create the led device. Signed-off-by:
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Sean Young authored
Cleanup the error logic, removing checks for things that should be always initialized when the routines are called, and remove some bogus messages. [mchehab@s-opensource.com: fix some merge conflicts] Signed-off-by:
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Sean Young authored
No need to duplicate these in the rc name. Signed-off-by:
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Sean Young authored
Rename the pnp driver in sysfs from /sys/bus/pnp/drivers/Winbond CIR to /sys/bus/pnp/drivers/winbond-cir Signed-off-by:
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Wei Yongjun authored
Fix to return error code -ENODEV from the error handling case instead of 0, as done elsewhere in this function. Signed-off-by:
Patrice Chotard <patrice.chotard@st.com> Signed-off-by:
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Wei Yongjun authored
'buf' is malloced in dibusb_rc_query() and should be freed before leaving from the error handling cases, otherwise it will cause memory leak. Fixes: ff1c1235 ("[media] dibusb: handle error code on RC query") Signed-off-by:
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- 20 Nov, 2016 2 commits
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Linus Torvalds authored
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM fixes from Russell King: "A few more ARM fixes: - the assembly backtrace code suffers problems with the new printk() implementation which assumes that kernel messages without KERN_CONT should have newlines inserted between them. Fix this. - fix a section naming error - ".init.text" rather than ".text.init" - preallocate DMA debug memory at core_initcall() time rather than fs_initcall(), as we have some core drivers that need to use DMA mapping - and that triggers a kernel warning from the DMA debug code. - fix XIP kernels after the ro_after_init changes made this data permanently read-only" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: Fix XIP kernels ARM: 8628/1: dma-mapping: preallocate DMA-debug hash tables in core_initcall ARM: 8624/1: proc-v7m.S: fix init section name ARM: fix backtrace
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