linux-kernel - Re: [PATCH v3 4/4] ARM: dts: at91: sama5d27

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Message-ID: <YSTk1pUTAUJLBJQl@robh.at.kernel.org>
Date:   Tue, 24 Aug 2021 07:23:50 -0500
From:   Rob Herring <robh@...nel.org>
To:     Claudiu Beznea <claudiu.beznea@...rochip.com>
Cc:     ulf.hansson@...aro.org, nicolas.ferre@...rochip.com,
        alexandre.belloni@...tlin.com, ludovic.desroches@...rochip.com,
        linux-mmc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        Eugen Hristev <eugen.hristev@...rochip.com>
Subject: Re: [PATCH v3 4/4] ARM: dts: at91: sama5d27_wlsom1: add wifi device

On Fri, Aug 20, 2021 at 12:28:03PM +0300, Claudiu Beznea wrote:
> From: Eugen Hristev <eugen.hristev@...rochip.com>
> 
> SAMA5D27 WLSOM1 boards has a WILC3000 device soldered. Add proper
> device tree nodes for this.
> 
> [eugen.hristev: original author of this code]
> Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
> [nicolas.ferre: original author of this code]
> Signed-off-by: Nicolas Ferre <nicolas.ferre@...rochip.com>
> Signed-off-by: Claudiu Beznea <claudiu.beznea@...rochip.com>
> ---
>  arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi | 71 +++++++++++++++++++++
>  1 file changed, 71 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
> index 025a78310e3a..c7bcfd3ce91d 100644
> --- a/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
> +++ b/arch/arm/boot/dts/at91-sama5d27_wlsom1.dtsi
> @@ -30,6 +30,15 @@ main_xtal {
>  			clock-frequency = <24000000>;
>  		};
>  	};
> +
> +	wifi_pwrseq: wifi_pwrseq {
> +		compatible = "mmc-pwrseq-wilc1000";
> +		reset-gpios = <&pioA PIN_PA27 GPIO_ACTIVE_HIGH>;
> +		powerdown-gpios = <&pioA PIN_PA29 GPIO_ACTIVE_HIGH>;
> +		pinctrl-0 = <&pinctrl_wilc_pwrseq>;
> +		pinctrl-names = "default";
> +		status = "okay";

'okay' is the default, so you can drop this.

> +	};
>  };
>  
>  &flx1 {
> @@ -310,5 +319,67 @@ pinctrl_qspi1_default: qspi1_default {
>  			 <PIN_PB10__QSPI1_IO3>;
>  		bias-pull-up;
>  	};
> +
> +	pinctrl_sdmmc1_default: sdmmc1_default {
> +		cmd-data {
> +			pinmux = <PIN_PA28__SDMMC1_CMD>,
> +				 <PIN_PA18__SDMMC1_DAT0>,
> +				 <PIN_PA19__SDMMC1_DAT1>,
> +				 <PIN_PA20__SDMMC1_DAT2>,
> +				 <PIN_PA21__SDMMC1_DAT3>;
> +			bias-disable;
> +		};
> +
> +		conf-ck {
> +			pinmux = <PIN_PA22__SDMMC1_CK>;
> +			bias-disable;
> +		};
> +	};
> +
> +	pinctrl_wilc_default: wilc_default {
> +		conf-irq {
> +			pinmux = <PIN_PB25__GPIO>;
> +			bias-disable;
> +		};
> +	};
> +
> +	pinctrl_wilc_pwrseq: wilc_pwrseq {
> +		conf-ce-nrst {
> +			pinmux = <PIN_PA27__GPIO>,
> +				 <PIN_PA29__GPIO>;
> +			bias-disable;
> +		};
> +
> +		conf-rtcclk {
> +			pinmux = <PIN_PB13__PCK1>;
> +			bias-disable;
> +		};
> +	};
> +};
> +
> +&sdmmc1 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +	bus-width = <4>;
> +	pinctrl-names = "default";
> +	pinctrl-0 = <&pinctrl_sdmmc1_default>;
> +	mmc-pwrseq = <&wifi_pwrseq>;
> +	no-1-8-v;
> +	non-removable;
> +	status = "okay";
> +
> +	wilc: wilc@0 {

wifi@0

> +		reg = <0>;
> +		bus-width = <4>;
> +		compatible = "microchip,wilc3000", "microchip,wilc1000";
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_wilc_default>;
> +		irq-gpios = <&pioA PIN_PB25 GPIO_ACTIVE_LOW>;
> +		clocks = <&pmc PMC_TYPE_SYSTEM 9>;
> +		clock-names = "rtc";
> +		assigned-clocks = <&pmc PMC_TYPE_SYSTEM 9>;
> +		assigned-clock-rates = <32768>;
> +		status = "okay";

Again, that's the default so drop.

Did you run validation (make dtbs_check) on your changes because I see 
multiple problems.

Rob