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Since crossbar is s/w configurable, the initial settings of the crossbar cannot be assumed to be sane. This implies that: a) On initialization all un-reserved crossbars must be initialized to a known 'safe' value. b) When unmapping the interrupt, the safe value must be written to ensure that the crossbar mapping matches with interrupt controller usage. So provide a safe value in the dt data to map if '0' is not safe for the platform and use it during init and unmap While at this, fix the below checkpatch warning. Fixes checkpatch warning: WARNING: Unnecessary space before function pointer arguments #37: FILE: drivers/irqchip/irq-crossbar.c:37: + void (*write) (int, int); Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Sricharan R <r.sricharan@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Link: https://lkml.kernel.org/r/1403766634-18543-5-git-send-email-r.sricharan@ti.com Signed-off-by: Jason Cooper <jason@lakedaemon.net> |
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| booting-without-of.txt | ||
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