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External IRQ0 (index 48) has the same capabilities as the other IRQ1-7 and is handled by the same register IPIC_SEPNR. When this register is not specified for "ack" in "ipic_info", you cannot configure this IRQ as IRQ_TYPE_EDGE_FALLING. This oversight was probably due to the non-contiguous hwirq numbering of IRQ0 in the IPIC. Signed-off-by: Jurgen Schindele <schindele@nentec.de> [scottwood: Cleaned up commit message and posted as a proper patch] Signed-off-by: Scott Wood <oss@buserror.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.