linux-kernel - Re: [PATCH 4/7] dt-bindings: firmware: arm,scmi: support pinctrl protocol

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Message-ID: <CACRpkdbpcwADJnZz1Q0KQ-gJv8FvnvJS=4PpMF+Np4rNCN3x+w@mail.gmail.com>
Date: Wed, 20 Dec 2023 12:42:27 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: "Peng Fan (OSS)" <peng.fan@....nxp.com>
Cc: Sudeep Holla <sudeep.holla@....com>, Cristian Marussi <cristian.marussi@....com>, 
	Rob Herring <robh+dt@...nel.org>, 
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, Conor Dooley <conor+dt@...nel.org>, 
	Oleksii Moisieiev <oleksii_moisieiev@...m.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>, 
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-gpio@...r.kernel.org, 
	Peng Fan <peng.fan@....com>, Takahiro Akashi <takahiro.akashi@...aro.org>
Subject: Re: [PATCH 4/7] dt-bindings: firmware: arm,scmi: support pinctrl protocol

Hi Peng,

On Fri, Dec 15, 2023 at 12:52 PM Peng Fan (OSS) <peng.fan@....nxp.com> wrote:

In this example, as it is not intended to reflect any specific hardware,
use the latest canonical naming:

> +
> +            scmi_pinctrl: protocol@19 {
> +                reg = <0x19>;
> +                #pinctrl-cells = <0>;
> +
> +                i2c2-pins {
> +                    groups = "i2c2_a", "i2c2_b";

groups = "g_i2c2_a", "g_i2c2_b";

> +                    function = "i2c2";

function = "f_i2c2";

> +                };
> +
> +                mdio-pins {
> +                    groups = "avb_mdio";

groups = "g_avb_mdio";

> +                    drive-strength = <24>;
> +                };
> +
> +                keys_pins: keys-pins {
> +                    pins = "GP_5_17", "GP_5_20", "GP_5_22", "GP_2_1";

pins = "gpio_5_17", "gpio_5_20", "gpio_5_22", "gpio_2_1";

These names look odd to me, like these are actually groups
with pins 5..17 etc. Should it be groups = "g_gpio_5_17" etc?

Yours,
Linus Walleij