linux-kernel - Re: [PATCH v2 3/5] ARM: tegra: transformer: use labels for mmc in aliases

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Date:   Tue, 28 Mar 2023 13:39:05 +0200
From:   Thierry Reding <thierry.reding@...il.com>
To:     Svyatoslav Ryhel <clamor95@...il.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Maxim Schwalm <maxim.schwalm@...il.com>,
        Dmitry Osipenko <digetx@...il.com>, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/5] ARM: tegra: transformer: use labels for mmc in
 aliases

On Sat, Mar 04, 2023 at 10:43:17AM +0200, Svyatoslav Ryhel wrote:
> Since mmc devices in common dtsi are labeled let's use labels
> for simpler comprehension of tree.
> 
> Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
> ---
>  arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi
> index 08ea9cb32d0e..70f7f279fd35 100644
> --- a/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi
> +++ b/arch/arm/boot/dts/tegra30-asus-transformer-common.dtsi
> @@ -12,9 +12,9 @@ / {
>  	chassis-type = "convertible";
>  
>  	aliases {
> -		mmc0 = "/mmc@...00600"; /* eMMC */
> -		mmc1 = "/mmc@...00000"; /* uSD slot */
> -		mmc2 = "/mmc@...00400"; /* WiFi */
> +		mmc0 = &sdmmc4; /* eMMC */
> +		mmc1 = &sdmmc1; /* uSD slot */
> +		mmc2 = &sdmmc3; /* WiFi */

I find it hard to see the improvement here. If you really need this,
please merge this with the patch that adds the labels and add them on an
as-needed basis. That is, if you want to replace the paths by phandle
references here, then introduce the sdmmc{1,3,4} labels, but not the
other ones which aren't used.

Thierry

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