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Message-ID: <2305627.1xdlsreqCQ@diego>
Date: Tue, 09 Jan 2024 16:22:01 +0100
From: Heiko Stübner <heiko@...ech.de>
To: Quentin Schulz <foss+kernel@...il.net>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org,
 Quentin Schulz <quentin.schulz@...obroma-systems.com>
Subject:
 Re: [PATCH 1/2] arm64: dts: rockchip: add spi controller aliases on rk3399

Hi Krzysztof,

Am Dienstag, 9. Januar 2024, 16:15:30 CET schrieb Krzysztof Kozlowski:
> On 09/01/2024 14:35, Quentin Schulz wrote:
> > From: Quentin Schulz <quentin.schulz@...obroma-systems.com>
> > 
> > There are 6 SPI controllers on RK3399 and they are all numbered in the
> > TRM, so let's add the appropriate aliases to the main DTSI so that any
> > RK3399-based board doesn't need to define the aliases themselves to
> > benefit from stable SPI indices in userspace.
> 
> But that contradicts the point that board should define aliases for
> exposable interfaces. Sorry, that's a NAK.

didn't we have this same discussion some weeks ago? ;-) .

I.e. spi2 on Rockchip socs is called spi2 in _all_ SoC documentation,
lines in _all_ schematics are also always called spi2_foo , so as before
I really don't see any value in repeating the very same aliases in
_every_ board.

Same for i2c, uart .


It is of course different for non-numerable interfaces - like the mmcX
aliases - where the controller is named sdhci, sdmmc, sdio ... and
similar cases. These get to stay in the board dts files of course.


Heiko

> > Cc: Quentin Schulz <foss+kernel@...il.net>
> 
> No need to Cc yourself...
> 
> > Signed-off-by: Quentin Schulz <quentin.schulz@...obroma-systems.com>
> > ---
> 
> Best regards,
> Krzysztof
> 
> 





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