linux-kernel - Re: [PATCH v2 05/11] iommu/ipmmu-vmsa: Make use of IOMMU_OF

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Date:   Tue, 7 Feb 2017 13:59:11 +0100
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Magnus Damm <magnus.damm@...il.com>
Cc:     iommu@...ts.linux-foundation.org,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Joerg Roedel <joro@...tes.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Simon Horman <horms+renesas@...ge.net.au>
Subject: Re: [PATCH v2 05/11] iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE()

Hi Magnus,

On Mon, Jun 6, 2016 at 5:58 AM, Magnus Damm <magnus.damm@...il.com> wrote:
> From: Magnus Damm <damm+renesas@...nsource.se>
>
> Hook up IOMMU_OF_DECLARE() support in case CONFIG_IOMMU_DMA
> is enabled. The only current supported case for 32-bit ARM
> is disabled, however for 64-bit ARM this is required.
>
> Signed-off-by: Magnus Damm <damm+renesas@...nsource.se>
> ---
>
>  Changes since V1:
>  - Reworked slightly to fit updated patch order and
>    [PATCH v3 00/06] iommu/ipmmu-vmsa: IPMMU multi-arch update V3
>
>  drivers/iommu/ipmmu-vmsa.c |   26 ++++++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>
> --- 0015/drivers/iommu/ipmmu-vmsa.c
> +++ work/drivers/iommu/ipmmu-vmsa.c     2016-06-06 10:57:26.790607110 +0900

> +#ifdef CONFIG_IOMMU_DMA
> +static int __init ipmmu_vmsa_iommu_of_setup(struct device_node *np)
> +{
> +       static const struct iommu_ops *ops = &ipmmu_ops;
> +
> +       ipmmu_init();
> +
> +       of_iommu_set_ops(np, (struct iommu_ops *)ops);

As of commit 65e251a4634c5644 ("iommu: Drop the of_iommu_{set/get}_ops()
interface"), this should become:

        iommu_register_instance(&np->fwnode, (struct iommu_ops *)ops);

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds