Re: [PATCH v8 1/8] of/platform: Allow overlays to create platform devices from the root node

[Stephen Boyd <sboyd@kernel.org>]

Quoting Stephen Boyd (2024-07-18 14:05:00)
> We'd like to apply overlays to the root node in KUnit so we can test
> platform devices created as children of the root node.
> 
> On some architectures (powerpc), the root node isn't marked with
> OF_POPULATED_BUS. If an overlay tries to modify the root node on these
> platforms it will fail, while on other platforms, such as ARM, it will
> succeed. This is because the root node is marked with OF_POPULATED_BUS
> by of_platform_default_populate_init() calling
> of_platform_default_populate() with NULL as the first argument.
> 
> Loosen the requirement here so that platform devices can be created for
> nodes created as children of the root node via DT overlays even if the
> platform bus wasn't populated for the root node.
> 
> Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
> Cc: Saravana Kannan <saravanak@google.com>
> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
> [sboyd@kernel.org: Folded in condition fix]
> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
> ---

Applied to clk-next