[PATCH v1] riscv: dts: starfive: remove non-existant spi device from jh7110-common.dtsi

Emil Renner Berthing emil.renner.berthing at canonical.com
Fri Jul 26 05:29:39 PDT 2024


Conor Dooley wrote:
> There is no rohm,dh2228fv on any of supported JH7110 boards - in fact
> the dh2228fv almost certainly does not exist as it is not a valid Rohm
> part number. Likely a typo by Maxime when adding the device originally,
> and should have been bh2228fv, but these boards do not have a bh2228fv
> either! Remove it from jh7110-common.dtsi - pretending to have a device
> so that the spidev driver will be bound by Linux is not acceptable.

Hi Conor,

This patch is correct, but as you mention the fake device was most likely added
in order to use spidev from userspace with random devices added on the exposed
pins. In case someone actually makes use of this wouldn't this be a regression?
What is the right way to support this?

/Emil

>
> Fixes: 74fb20c8f05d ("riscv: dts: starfive: Add spi node and pins configuration")
> Signed-off-by: Conor Dooley <conor.dooley at microchip.com>
> ---
> CC: Emil Renner Berthing <kernel at esmil.dk>
> CC: Conor Dooley <conor at kernel.org>
> CC: Rob Herring <robh at kernel.org>
> CC: Krzysztof Kozlowski <krzk+dt at kernel.org>
> CC: Paul Walmsley <paul.walmsley at sifive.com>
> CC: Palmer Dabbelt <palmer at dabbelt.com>
> CC: Albert Ou <aou at eecs.berkeley.edu>
> CC: William Qiu <william.qiu at starfivetech.com>
> CC: linux-riscv at lists.infradead.org
> CC: devicetree at vger.kernel.org
> CC: linux-kernel at vger.kernel.org
> ---
>  arch/riscv/boot/dts/starfive/jh7110-common.dtsi | 6 ------
>  1 file changed, 6 deletions(-)
>
> diff --git a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> index 8ff6ea64f048..395436ec0f97 100644
> --- a/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> +++ b/arch/riscv/boot/dts/starfive/jh7110-common.dtsi
> @@ -346,12 +346,6 @@ &spi0 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&spi0_pins>;
>  	status = "okay";
> -
> -	spi_dev0: spi at 0 {
> -		compatible = "rohm,dh2228fv";
> -		reg = <0>;
> -		spi-max-frequency = <10000000>;
> -	};
>  };
>
>  &sysgpio {
> --
> 2.43.2
>



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