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ec58ba16e1
In case of HSDK we have intermediate INTC in for of DW APB GPIO controller which is used as a de-bounce logic for interrupt wires that come from outside the board. We cannot use existing "irq-dw-apb-ictl" driver here because all input lines are routed to corresponding output lines but not muxed into one line (this is configured in RTL and we cannot change this in software). But even if we add such a feature to "irq-dw-apb-ictl" driver that won't benefit us as higher-level INTC (in case of HSDK it is IDU) anyways has per-input control so adding fully-controller intermediate INTC will only bring some overhead on interrupt processing but no other benefits. Thus we just do one-time configuration of DW APB GPIO controller and forget about it. Based on implementation available on arch/arc/plat-axs10x/axs10x.c file. Acked-by: Alexey Brodkin <abrodkin@synopsys.com> Signed-off-by: Gustavo Pimentel <gustavo.pimentel@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com> |
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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.