On Wed, 2013-12-11 at 06:11 +0100, Arnd Bergmann wrote: > It depends: if the driver is for the entire FPGA and does > the irqchip stuff in addition, it should probably live > in drivers/mfd. If it's a pure irqchip driver, drivers/irqchip > is better. You have to be careful in the second case though > because devices pointing to this irqchip in DT won't get > an IRQ resource assigned automatically but have to use > irq_of_parse_and_map instead. This may have been fixed since > I last looked though, I would consider that behavior a > bug in the of_platform handling.
Thanks again for explaining. Although FPGA is a MFD, its irq are used mostly by 8250 serial ports. It will be enough to embed irqchip into serial driver for now. If there is a need to use the chip in another driver, it will be possible to introduce an artificial dependency there for the serial driver to ensure the serial driver is loaded before the other one. Is this plan acceptable? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/