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irqchip: IMX_MU_MSI should depend on ARCH_MXC

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The Freescale/NXP i.MX Messaging Unit is only present on Freescale/NXP
i.MX SoCs.  Hence add a dependency on ARCH_MXC, to prevent asking the
user about this driver when configuring a kernel without Freescale/NXP
i.MX SoC family support.

While at it, expand "MU" to "Messaging Unit" in the help text.

Fixes: 70afdab904 ("irqchip: Add IMX MU MSI controller driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/7f3bd932614ddbff46a1b750ef45b231130364ad.1664900434.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven 2022-10-04 18:22:30 +02:00 committed by Marc Zyngier
parent e4a7e67a08
commit 6c9f743415
1 changed files with 4 additions and 3 deletions
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7
drivers/irqchip/Kconfig
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@ -484,14 +484,15 @@ config IMX_INTMUX
config IMX_MU_MSI
tristate "i.MX MU used as MSI controller"
depends on OF && HAS_IOMEM
depends on ARCH_MXC || COMPILE_TEST
default m if ARCH_MXC
select IRQ_DOMAIN
select IRQ_DOMAIN_HIERARCHY
select GENERIC_MSI_IRQ_DOMAIN
help
Provide a driver for the MU block used as a CPU-to-CPU MSI
controller. This requires a specially crafted DT to make use
of this driver.
Provide a driver for the i.MX Messaging Unit block used as a
CPU-to-CPU MSI controller. This requires a specially crafted DT
to make use of this driver.
If unsure, say N