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In most of cases, interrupt bits are set one by one but there are also a lot of other cases that Aspeed I2C IP sends multiple interrupt bits with combining master and slave events using a single interrupt call. It happens much more in multi-master environment than single-master. For an example, when master is waiting for a NORMAL_STOP interrupt in its MASTER_STOP state, SLAVE_MATCH and RX_DONE interrupts could come along with the NORMAL_STOP in case of an another master immediately sends data just after acquiring the bus. In this case, the NORMAL_STOP interrupt should be handled by master_irq and the SLAVE_MATCH and RX_DONE interrupts should be handled by slave_irq. This commit modifies irq hadling logic to handle the master/slave combined events properly. Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com> Reviewed-by: Brendan Higgins <brendanhiggins@google.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> |
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| Documentation | ||
| drivers | ||
| firmware | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
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| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
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| COPYING | ||
| CREDITS | ||
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| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.