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05 April 2024, 19:05:47 UTC
Revision ca122fe376fc43f7565e3e56e6777d06a433a4cc authored by Linus Torvalds on 25 November 2017, 18:21:54 UTC, committed by Linus Torvalds on 25 November 2017, 18:21:54 UTC 
Merge tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
 
Pull ARC updates from Vineet Gupta:

 - more changes for HS48 cores: supporting MMUv5, detecting new
   micro-arch gizmos

 - axs10x platform wiring up reset driver merged in this cycle

 - ARC perf driver optimizations

* tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
  ARC: perf: avoid vmalloc backed mmap
  ARCv2: perf: optimize given that num counters <= 32
  ARCv2: perf: tweak overflow interrupt
  ARC: [plat-axs10x] DTS: Add reset controller node to manage ethernet reset
  ARCv2: boot log: updates for HS48: dual-issue, ECC, Loop Buffer
  ARCv2: Accomodate HS48 MMUv5 by relaxing MMU ver checking
  ARC: [plat-axs10x] auto-select AXS101 or AXS103 given the  ISA config
2 parent s 5e2fda4 + 8238573
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Tip revision: ca122fe376fc43f7565e3e56e6777d06a433a4cc authored by Linus Torvalds on 25 November 2017, 18:21:54 UTC
Merge tag 'arc-4.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Tip revision: ca122fe
video-output.txt 

		Video Output Switcher Control
		~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
		2006 luming.yu@intel.com

The output sysfs class driver provides an abstract video output layer that
can be used to hook platform specific methods to enable/disable video output
device through common sysfs interface. For example, on my IBM ThinkPad T42
laptop, The ACPI video driver registered its output devices and read/write
method for 'state' with output sysfs class. The user interface under sysfs is:

linux:/sys/class/video_output # tree .
.
|-- CRT0
|   |-- device -> ../../../devices/pci0000:00/0000:00:01.0
|   |-- state
|   |-- subsystem -> ../../../class/video_output
|   `-- uevent
|-- DVI0
|   |-- device -> ../../../devices/pci0000:00/0000:00:01.0
|   |-- state
|   |-- subsystem -> ../../../class/video_output
|   `-- uevent
|-- LCD0
|   |-- device -> ../../../devices/pci0000:00/0000:00:01.0
|   |-- state
|   |-- subsystem -> ../../../class/video_output
|   `-- uevent
`-- TV0
   |-- device -> ../../../devices/pci0000:00/0000:00:01.0
   |-- state
   |-- subsystem -> ../../../class/video_output
   `-- uevent
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