linux-kernel - Re: [PATCH 2/2] arm64: allwinner: a64: Add Oceanic A64-5inMFD initial support

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Message-ID: <CAMty3ZCUSsN71Q5h_nj6de0Smhqht1S5zq0pLKUqpwq=85XqXw@mail.gmail.com>
Date:   Fri, 1 Mar 2019 22:27:14 +0530
From:   Jagan Teki <jagan@...rulasolutions.com>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Chen-Yu Tsai <wens@...e.org>, Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Ryan Pannell <ryan@...kl.com>,
        Michael Trimarchi <michael@...rulasolutions.com>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-amarula@...rulasolutions.com
Subject: Re: [PATCH 2/2] arm64: allwinner: a64: Add Oceanic A64-5inMFD initial support

On Fri, Mar 1, 2019 at 8:27 PM Maxime Ripard <maxime.ripard@...tlin.com> wrote:
>
> On Wed, Feb 27, 2019 at 09:49:23PM +0530, Jagan Teki wrote:
> > On Wed, Feb 27, 2019 at 9:03 PM Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> > >
> > > Hi,
> > >
> > > On Tue, Feb 26, 2019 at 11:32:40AM +0530, Jagan Teki wrote:
> > > > Oceanic A64-5inMFD is a 5 inch Multi function display baseboard
> > > > designed to mount SoPine SOM.
> > > >
> > > > Key features:
> > > > - Allwinner A64 Cortex-A53
> > > > - Mali-400MP2 GPU
> > > > - AXP803 PMIC
> > > > - 2GB DDR3 RAM
> > > > - SD Slot
> > > > - SPI-NOR flash
> > > > - EMAC, RTL8211E
> > > > - MCP2515 CAN
> > > > - MIPI-DSI
> > > > - Goodix 911 CTP
> > > > - USB Host
> > > > - 12V DC power supply
> > > >
> > > > Signed-off-by: Jagan Teki <jagan@...rulasolutions.com>
> > > > ---
> > > >  arch/arm64/boot/dts/allwinner/Makefile        |  1 +
> > > >  .../allwinner/sun50i-a64-oceanic-5inmfd.dts   | 46 +++++++++++++++++++
> > > >  2 files changed, 47 insertions(+)
> > > >  create mode 100644 arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5inmfd.dts
> > > >
> > > > diff --git a/arch/arm64/boot/dts/allwinner/Makefile b/arch/arm64/boot/dts/allwinner/Makefile
> > > > index a5fb1eaa8acf..ec39fe856117 100644
> > > > --- a/arch/arm64/boot/dts/allwinner/Makefile
> > > > +++ b/arch/arm64/boot/dts/allwinner/Makefile
> > > > @@ -2,6 +2,7 @@
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-amarula-relic.dtb
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-bananapi-m64.dtb sun50i-a64-bananapi-m64-icn6211.dtb
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-nanopi-a64.dtb
> > > > +dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-oceanic-5inmfd.dtb
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-olinuxino.dtb
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-orangepi-win.dtb
> > > >  dtb-$(CONFIG_ARCH_SUNXI) += sun50i-a64-pine64-lts.dtb
> > > > diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5inmfd.dts b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5inmfd.dts
> > > > new file mode 100644
> > > > index 000000000000..d73d1f55acb9
> > > > --- /dev/null
> > > > +++ b/arch/arm64/boot/dts/allwinner/sun50i-a64-oceanic-5inmfd.dts
> > > > @@ -0,0 +1,46 @@
> > > > +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> > > > +/*
> > > > + * Copyright (C) 2019 Oceanic Systems (UK) Ltd.
> > > > + * Copyright (C) 2019 Amarula Solutions B.V.
> > > > + * Author: Jagan Teki <jagan@...rulasolutions.com>
> > > > + */
> > > > +
> > > > +/dts-v1/;
> > > > +
> > > > +#include "sun50i-a64-sopine.dtsi"
> > > > +
> > > > +/ {
> > > > +     model = "Oceanic A64-5inMFD";
> > > > +     compatible = "oceanic,a64-5inmfd", "allwinner,sun50i-a64";
> > >
> > > The name of the DT is Oceanic 5inMFD, while you call the board
> > > A64-5inMFD here, which name is the actual name?
> >
> > Yes, this is something that we discussed during "Amarula A64-Relic"
> > naming convention.
> >
> > Since these boards are not famous like teres-i we agreed to add vendor
> > name after sun50i-a64- followed by real board name.
> >
> > Here A64 already covered during sun50i-a64- so the dts name simply the
> > <vendor_name>-<real_board_name>
>
> For the DT name, yeah, we want that pattern.
>
> For the compatible and model, we want to use the model name.

Entire model name after <vendor_name>, ?

model = "Oceanic A64-5inMFD";
compatible = "oceanic,a64-5inmfd", "allwinner,sun50i-a64";

is this not sufficient?

Let me understand with respective few existing stuff.

model = "Amarula A64-Relic";
compatible = "amarula,a64-relic", "allwinner,sun50i-a64";

model = "Olimex A64 Teres-I"
compatible = "olimex,a64-teres-i", "allwinner,sun50i-a64";

model = "FriendlyARM NanoPi A64";
compatible = "friendlyarm,nanopi-a64", "allwinner,sun50i-a64";

model = "Olimex A64-Olinuxino";
compatible = "olimex,a64-olinuxino", "allwinner,sun50i-a64"

Would you comment, what is the different with respect to my change?