linux-kernel - Re: [RESEND PATCH v2 1/5] riscv: dts: sifive: use only generic JEDEC SPI NOR flash compatible

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Date:   Tue, 12 Oct 2021 06:29:10 +0200
From:   Alexandre Ghiti <alexandre.ghiti@...onical.com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        Palmer Dabbelt <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>, devicetree@...r.kernel.org,
        linux-riscv <linux-riscv@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org List" <linux-kernel@...r.kernel.org>
Subject: Re: [RESEND PATCH v2 1/5] riscv: dts: sifive: use only generic JEDEC
 SPI NOR flash compatible

hi Krzysztof,

On Mon, Sep 20, 2021 at 3:05 PM Krzysztof Kozlowski
<krzysztof.kozlowski@...onical.com> wrote:
>
> The compatible "issi,is25wp256" is undocumented and instead only a
> generic jedec,spi-nor should be used (if appropriate).

Why not do it the other way around? I mean adding this compatible to
the expected list: don't we lose information using the generic
compatible?

Thanks,

Alex

>
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
>
> ---
>
> Changes since v1:
> 1. New patch
> ---
>  arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts | 2 +-
>  arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> index 60846e88ae4b..633b31b6e25c 100644
> --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts
> @@ -63,7 +63,7 @@ &i2c0 {
>  &qspi0 {
>         status = "okay";
>         flash@0 {
> -               compatible = "issi,is25wp256", "jedec,spi-nor";
> +               compatible = "jedec,spi-nor";
>                 reg = <0>;
>                 spi-max-frequency = <50000000>;
>                 m25p,fast-read;
> diff --git a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> index 2e4ea84f27e7..9b0b9b85040e 100644
> --- a/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> +++ b/arch/riscv/boot/dts/sifive/hifive-unmatched-a00.dts
> @@ -211,7 +211,7 @@ vdd_ldo11: ldo11 {
>  &qspi0 {
>         status = "okay";
>         flash@0 {
> -               compatible = "issi,is25wp256", "jedec,spi-nor";
> +               compatible = "jedec,spi-nor";
>                 reg = <0>;
>                 spi-max-frequency = <50000000>;
>                 m25p,fast-read;
> --
> 2.30.2
>
>
> _______________________________________________
> linux-riscv mailing list
> linux-riscv@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-riscv

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