Re: [PATCH v2] PCI: dwc: Skip MEM outbound iATU setup for identity mappings

[Niklas Cassel]

On Tue, Oct 20, 2026 at 10:37:35AM +0800, Xincheng Ji wrote:
> No outbound iATU translation is required when the parent-bus address
> matches the PCI address. This is a DesignWare controller property, not
> an UltraRISC-specific behavior.
> 
> Compare the addresses directly and skip MEM outbound iATU setup when
> they match. Remove bypass_ob_mem_iatu and the UltraRISC-specific setting.
> CFG and I/O accesses, as well as non-identity-mapped MEM ranges, still
> use outbound iATU windows.
> 
> Fixes: 17b478b29cf1 ("PCI: dwc: Allow drivers to skip MEM outbound iATU setup")
> Fixes: 8da2b970ed4c ("PCI: ultrarisc: Skip MEM outbound iATU setup on DP1000")
> Signed-off-by: Xincheng Ji <jixincheng@xxxxxxxxxxxxx>

Looks good to me:

Reviewed-by: Niklas Cassel <cassel@xxxxxxxxxx>