06 Dec, 2018
1 commit
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This patch adds support of hardware semaphores for stm32mp1 SoC.
The hardware block provides 32 semaphores.Signed-off-by: Benjamin Gaignard
Signed-off-by: Benjamin Gaignard
Signed-off-by: Bjorn Andersson
02 Nov, 2017
1 commit
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Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
18 May, 2017
1 commit
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The Spreadtrum hardware spinlock device can provide hardware assistance
for synchronization between the multiple subsystems.Signed-off-by: Baolin Wang
Signed-off-by: Bjorn Andersson
12 Jun, 2015
1 commit
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Add hwspinlock support for the CSR atlas7 SoC.
The Hardware Spinlock device on atlas7 provides hardware assistance
for synchronization between the multiple processors in the system
(dual Cortex-A7, CAN bus Cortex-M3 and audio DSP).Reviewed-by: Suman Anna
Reviewed-by: Bjorn Andersson
Signed-off-by: Wei Chen
Signed-off-by: Barry Song
Signed-off-by: Ohad Ben-Cohen
02 May, 2015
1 commit
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Add driver for Qualcomm Hardware Mutex block found in many Qualcomm
SoCs.Based on initial effort by Kumar Gala
Signed-off-by: Bjorn Andersson
Reviewed-by: Andy Gross
Reviewed-by: Jeffrey Hugo
Signed-off-by: Ohad Ben-Cohen
22 Sep, 2011
1 commit
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Add hwspinlock driver for U8500's Hsem hardware.
At this point only HSem's protocol 1 is used (i.e. no interrupts).
Signed-off-by: Mathieu Poirier
Acked-by: Linus Walleij
[ohad@wizery.com: adopt recent hwspin_lock_{un}register API changes]
[ohad@wizery.com: set the owner member of the driver]
[ohad@wizery.com: mark ->remove() function as __devexit]
[ohad@wizery.com: write commit log]
[ohad@wizery.com: small cleanups]
Signed-off-by: Ohad Ben-Cohen
18 Feb, 2011
2 commits
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Add hwspinlock support for the OMAP4 Hardware Spinlock device.
The Hardware Spinlock device on OMAP4 provides hardware assistance
for synchronization between the multiple processors in the system
(dual Cortex-A9, dual Cortex-M3 and a C64x+ DSP).[ohad@wizery.com: adapt to hwspinlock framework, tidy up]
Signed-off-by: Simon Que
Signed-off-by: Hari Kanigeri
Signed-off-by: Krishnamoorthy, Balaji T
Signed-off-by: Ohad Ben-Cohen
Cc: Benoit Cousson
Cc: Kevin Hilman
Cc: Grant Likely
Cc: Arnd Bergmann
Cc: Paul Walmsley
Cc: Russell King
Signed-off-by: Tony Lindgren -
Add a platform-independent hwspinlock framework.
Hardware spinlock devices are needed, e.g., in order to access data
that is shared between remote processors, that otherwise have no
alternative mechanism to accomplish synchronization and mutual exclusion
operations.Signed-off-by: Ohad Ben-Cohen
Cc: Hari Kanigeri
Cc: Benoit Cousson
Cc: Kevin Hilman
Cc: Grant Likely
Cc: Paul Walmsley
Cc: Russell King
Acked-by: Arnd Bergmann
Signed-off-by: Tony Lindgren
