linux-kernel - Re: [v2 3/6] of: address: add support to parse PCI outbound-ranges

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Date:   Mon, 16 Dec 2019 08:55:35 +0000
From:   "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Magnus Damm <magnus.damm@...il.com>,
        Kishon Vijay Abraham I <kishon@...com>,
        Marek Vasut <marek.vasut+renesas@...il.com>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        linux-pci <linux-pci@...r.kernel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Andrew Murray <andrew.murray@....com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, LKML <linux-kernel@...r.kernel.org>,
        LAK <linux-arm-kernel@...ts.infradead.org>,
        Linux-Renesas <linux-renesas-soc@...r.kernel.org>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Frank Rowand <frowand.list@...il.com>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Simon Horman <horms@...ge.net.au>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Tom Joseph <tjoseph@...ence.com>,
        Heiko Stuebner <heiko@...ech.de>,
        linux-rockchip@...ts.infradead.org,
        "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [v2 3/6] of: address: add support to parse PCI outbound-ranges

Hi Bjorn,

Thank you for the review.

On Fri, Dec 13, 2019 at 9:05 PM Bjorn Helgaas <helgaas@...nel.org> wrote:
>
> On Fri, Dec 13, 2019 at 08:47:45AM +0000, Lad Prabhakar wrote:
> > From: "Lad, Prabhakar" <prabhakar.mahadev-lad.rj@...renesas.com>
>
> $ git log --oneline drivers/of/address.c
> 951d48855d86 of: Make of_dma_get_range() work on bus nodes
> 645c138636de of/address: Fix of_pci_range_parser_one translation of DMA addresses
> 81db12ee15cb of/address: Translate 'dma-ranges' for parent nodes missing 'dma-ranges'
> b68ac8dc22eb of: Factor out #{addr,size}-cells parsing
> c60bf3eb888a of: address: Follow DMA parent for "dma-coherent"
> 862ab5578f75 of/address: Introduce of_get_next_dma_parent() helper
>
> Make yours match.  There are a few "of: address: " subjects, but the
> ones from Rob (the maintainer) use "of/address: ", so I'd use that.
>
will do the same for next iteration.

> > this patch adds support to parse PCI outbound-ranges, the
> > outbound-regions are similar to pci ranges except it doesn't
> > have pci address, below is the format for bar-ranges:
>
> s/pci/PCI/
> Capitalize sentences.
>
will fix that.

> Is "bar-range" an actual DT property?  If it's supposed to be a
> generic description, "BAR range" would be better.
>
my bad, it should be outbound-range.

Cheers,
--Prabhakar

> > outbound-ranges = <flags upper32_cpuaddr lower32_cpuaddr
> >                    upper32_size lower32_size>;