Re: [PATCH v1 1/2] dt-bindings: soc: samsung: usi: allow 64-bit address space
From: Krzysztof Kozlowski <krzk@kernel.org>
Date: 2025-07-23 08:15:15
Also in:
linux-devicetree, linux-samsung-soc, lkml
On Tue, Jul 22, 2025 at 03:10:36PM +0300, Ivaylo Ivanov wrote:
Some device trees, like the exynos2200 one, configure the root node with #address-cells and #size-cells set to 2. However, the usi binding expects 32 bit address space only. Allow these determining properties to
So if USI expects 32 bit, then why do we allow 64? Switching this to 2 means you use 64-bit addressing for children and allowing DMA for >32 bit. This should be the true reason - what is the address space and DMA range for children? Best regards, Krzysztof