[PATCH 1/2] ARM64/irqchip: Update ACPI_IORT symbol selection logic

[Marc Zyngier]

On 14/06/17 17:37, Lorenzo Pieralisi wrote:
> ACPI IORT is an ACPI addendum to describe the connection topology of
> devices with IOMMUs and interrupt controllers on ARM64 ACPI systems.
> 
> Currently the ACPI IORT Kbuild symbol is selected whenever the Kbuild
> symbol ARM_GIC_V3_ITS is enabled, which in turn is selected by ARM64
> Kbuild defaults. This makes the logic behind ACPI_IORT selection a bit
> twisted and not easy to follow. On ARM64 systems enabling ACPI the
> kbuild symbol ACPI_IORT should always be selected in that it is a kernel
> layer provided to the ARM64 arch code to parse and enable ACPI firmware
> bindings.
> 
> Make the ACPI_IORT selection explicit in ARM64 Kbuild and remove the
> selection from ARM_GIC_V3_ITS entry, making the ACPI_IORT selection
> logic clearer to follow.
> 
> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi at arm.com>
> Cc: Will Deacon <will.deacon at arm.com>
> Cc: Hanjun Guo <hanjun.guo at linaro.org>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> Cc: Marc Zyngier <marc.zyngier at arm.com>

Acked-by: Marc Zyngier <marc.zyngier at arm.com>

	M.
-- 
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