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Message-ID: <20230418223800.GA2447581-robh@kernel.org>
Date: Tue, 18 Apr 2023 17:38:00 -0500
From: Rob Herring <robh@...nel.org>
To: Linus Walleij <linus.walleij@...aro.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] misc: sram: Generate unique names for subpools
On Mon, Apr 17, 2023 at 09:34:57AM +0200, Linus Walleij wrote:
> The current code will, if we do not specify unique labels
> for the SRAM subnodes, fail to register several nodes named
> the same.
>
> Example:
>
> sram@...20000 {
> (...)
> sram@0 {
> (...)
> };
> sram@...0 {
> (...)
> };
> };
>
> Since the child->name in both cases will be "sram" the
> gen_pool_create() will fail because the name is not unique.
> So let's use of_full_node_name() instead of child->name
> so the name is "sram@0" and "sram@...0" respectively.
>
> However if there are two or more SRAMs on the system
> with subnodes named the same (that exists on the U8500)
> then this again will not work. So catenate the top node
> name and the subnode full name to form a string that will
> always be unique.
Use the naming platform devices use which has the translated address.
How the addresses are defined should not affect the device name.
Rob
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