irqchip: Add IMX MU MSI controller driver

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The MU block found in a number of Freescale/NXP SoCs supports generating
IRQs by writing data to a register.

This enables the MU block to be used as a MSI controller, by leveraging
the platform-MSI API.

Signed-off-by: Frank Li <Frank.Li@nxp.com>
[maz: dropped pointless dma-iommu.h and of_pci.h includes]
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20220922161246.20586-4-Frank.Li@nxp.com

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Frank Li 2022-09-22 11:12:43 -05:00 • committed by Marc Zyngier

parent 334f7d42db

commit 70afdab904

3 changed files with 468 additions and 0 deletions

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14

drivers/irqchip/Kconfig

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1

drivers/irqchip/Makefile

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453

drivers/irqchip/irq-imx-mu-msi.c

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