linux-kernel - Re: [PATCH v2] arm64: dts: renesas: rzg2l-smarc-som: Enable serial NOR flash

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Date:   Mon, 22 Nov 2021 23:05:57 +0300
From:   Sergey Shtylyov <s.shtylyov@....ru>
To:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        "Geert Uytterhoeven" <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        <linux-renesas-soc@...r.kernel.org>
CC:     <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Prabhakar <prabhakar.csengg@...il.com>,
        Biju Das <biju.das.jz@...renesas.com>
Subject: Re: [PATCH v2] arm64: dts: renesas: rzg2l-smarc-som: Enable serial
 NOR flash

On 22.11.2021 2:49, Lad Prabhakar wrote:

> Enable mt25qu512a flash connected to QSPI0.
> 
> Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> Reviewed-by: Biju Das <biju.das.jz@...renesas.com>
> ---
> v1->v2
> -> Renamed qspi_pins0 to qspi0_pins
> ---
>   .../boot/dts/renesas/rzg2l-smarc-som.dtsi     | 40 +++++++++++++++++++
>   1 file changed, 40 insertions(+)
> 
> diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
> index 7e84a29dddfa..aef1b8736732 100644
> --- a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
> +++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi
> @@ -178,6 +178,18 @@
>   		line-name = "gpio_sd0_pwr_en";
>   	};
>   
> +	qspi0_pins: qspi0 {
> +		qspi0-data {
> +			pins = "QSPI0_IO0", "QSPI0_IO1", "QSPI0_IO2", "QSPI0_IO3";
> +			power-source  = <1800>;

    Hrm, sorry for more nitpicking... Why 2 spaces before =?

> +		};
> +
> +		qspi0-ctrl {
> +			pins = "QSPI0_SPCLK", "QSPI0_SSL", "QSPI_RESET#";
> +			power-source  = <1800>;

    Here as well...

> +		};
> +	};
> +
>   	/*
>   	 * SD0 device selection is XOR between GPIO_SD0_DEV_SEL and SW1[2]
>   	 * The below switch logic can be used to select the device between
[...]

MBR, Sergey