linux-kernel - Re: [PATCH 2/2] dt-bindings: mmc: correct pwrseq node names

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Date:   Fri, 20 Jan 2023 10:38:43 +0100
From:   Heiko Stübner <heiko@...ech.de>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Neil Armstrong <neil.armstrong@...aro.org>,
        Kevin Hilman <khilman@...libre.com>,
        Jerome Brunet <jbrunet@...libre.com>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        NXP Linux Team <linux-imx@....com>,
        Lars Povlsen <lars.povlsen@...rochip.com>,
        Steen Hegelund <Steen.Hegelund@...rochip.com>,
        Daniel Machon <daniel.machon@...rochip.com>,
        UNGLinuxDriver@...rochip.com,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Alim Akhtar <alim.akhtar@...sung.com>,
        Tony Huang <tonyhuang.sunplus@...il.com>,
        Li-hao Kuo <lhjeff911@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Markus Pargmann <mpa@...gutronix.de>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        linux-tegra@...r.kernel.org, linux-actions@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH 2/2] dt-bindings: mmc: correct pwrseq node names

Am Freitag, 20. Januar 2023, 09:57:22 CET schrieb Krzysztof Kozlowski:
> Node names should be generic and should not contain underscores.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---
>  Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.yaml   | 2 +-
>  Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml | 2 +-
>  Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml | 2 +-
>  3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.yaml b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.yaml
> index 911a5996e099..588be73168fa 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-emmc.yaml
> @@ -41,7 +41,7 @@ additionalProperties: false
>  examples:
>    - |
>      #include <dt-bindings/gpio/gpio.h>
> -    sdhci0_pwrseq {
> +    pwrseq {

[applicable for all 3 examples]

hmm, power-sequences are not necessarily tied to an address and I guess
it will be very much a common case to have multiple ones on a system.

So might it be better to follow other patterns (like leds) to number them
or suggest a "foo-pwrseq" / "pwrseq-foo"?


Heiko


>        compatible = "mmc-pwrseq-emmc";
>        reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
>      };
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml
> index 3397dbff88c2..b35e00e8c65e 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-sd8787.yaml
> @@ -35,7 +35,7 @@ additionalProperties: false
>  examples:
>    - |
>      #include <dt-bindings/gpio/gpio.h>
> -    wifi_pwrseq: wifi_pwrseq {
> +    pwrseq {
>        compatible = "mmc-pwrseq-sd8787";
>        powerdown-gpios = <&twl_gpio 0 GPIO_ACTIVE_LOW>;
>        reset-gpios = <&twl_gpio 1 GPIO_ACTIVE_LOW>;
> diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml
> index 64e3644eefeb..00feaafc1063 100644
> --- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml
> +++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.yaml
> @@ -55,7 +55,7 @@ additionalProperties: false
>  examples:
>    - |
>      #include <dt-bindings/gpio/gpio.h>
> -    sdhci0_pwrseq {
> +    pwrseq {
>        compatible = "mmc-pwrseq-simple";
>        reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
>        clocks = <&clk_32768_ck>;
>