linux-kernel - Re: [PATCH 4/5] iommu/sun50i: Add support for the D1 variant

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Date:   Thu, 28 Apr 2022 07:34:59 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        iommu@...ts.linux-foundation.org,
        Samuel Holland <samuel@...lland.org>
Cc:     Heiko Stuebner <heiko@...ech.de>,
        Palmer Dabbelt <palmer@...belt.com>,
        linux-riscv@...ts.infradead.org,
        Samuel Holland <samuel@...lland.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Maxime Ripard <mripard@...nel.org>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev
Subject: Re: [PATCH 4/5] iommu/sun50i: Add support for the D1 variant

Dne četrtek, 28. april 2022 ob 03:03:59 CEST je Samuel Holland napisal(a):
> D1 contains an IOMMU similar to the one in the H6 SoC, but the D1
> variant has no external reset signal. It also has some register
> definition changes, but none that affect the current driver.
> 
> Signed-off-by: Samuel Holland <samuel@...lland.org>

Reviewed-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej

> ---
> 
>  drivers/iommu/sun50i-iommu.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
> index b9e644b93637..1fb707e37fb3 100644
> --- a/drivers/iommu/sun50i-iommu.c
> +++ b/drivers/iommu/sun50i-iommu.c
> @@ -999,11 +999,15 @@ static int sun50i_iommu_probe(struct platform_device
> *pdev) return ret;
>  }
> 
> +static const struct sun50i_iommu_variant sun20i_d1_iommu = {
> +};
> +
>  static const struct sun50i_iommu_variant sun50i_h6_iommu = {
>  	.has_reset = true,
>  };
> 
>  static const struct of_device_id sun50i_iommu_dt[] = {
> +	{ .compatible = "allwinner,sun20i-d1-iommu", .data = 
&sun20i_d1_iommu },
>  	{ .compatible = "allwinner,sun50i-h6-iommu", .data = 
&sun50i_h6_iommu },
>  	{ /* sentinel */ },
>  };