On Fri, 17 Jun 2022 16:13:04 +0100,
Matt Ranostay <mranostay@xxxxxx> wrote:
>
> GICD region was overlapping with GICR causing the latter to not map
> successfully, and in turn the gic-v3 driver would fail to initialize.
>
> This issue was hidden till commit 2b2cd74a06c3 ("irqchip/gic-v3: Claim
> iomem resources") replaced of_iomap() calls with of_io_request_and_map()
> that internally called request_mem_region().
>
> Respective console output before this patchset:
>
> [ 0.000000] GICv3: /bus@100000/interrupt-controller@1800000: couldn't map region 0
>
> Fixes: b8545f9d3a54 ("arm64: dts: ti: Add initial support for J721S2 SoC")
> Cc: linux-stable@xxxxxxxxxxxxxxx
> Cc: Marc Zyngier <maz@xxxxxxxxxx>
> Cc: Robin Murphy <robin.murphy@xxxxxxx>
> Cc: Nishanth Menon <nm@xxxxxx>
> Signed-off-by: Matt Ranostay <mranostay@xxxxxx>
Acked-by: Marc Zyngier <maz@xxxxxxxxxx>
M.
--
Without deviation from the norm, progress is not possible.
