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Message-ID: <20180831075631.GB16301@Red>
Date: Fri, 31 Aug 2018 09:56:31 +0200
From: Corentin Labbe <clabbe.montjoie@...il.com>
To: Maxime Ripard <maxime.ripard@...tlin.com>
Cc: axboe@...nel.dk, hdegoede@...hat.com, kishon@...com,
mark.rutland@....com, robh+dt@...nel.org, wens@...e.org,
devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-sunxi@...glegroups.com, Icenowy Zheng <icenowy@...c.io>
Subject: Re: [PATCH v4 09/13] ARM: dts: sun8i: r40: add sata node
On Fri, Aug 31, 2018 at 09:35:00AM +0200, Maxime Ripard wrote:
> On Thu, Aug 30, 2018 at 09:01:16PM +0200, Corentin Labbe wrote:
> > R40 have a sata controller which is the same as A20.
> > This patch adds a DT node for it.
> >
> > Signed-off-by: Icenowy Zheng <icenowy@...c.io>
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
> > ---
> > arch/arm/boot/dts/sun8i-r40.dtsi | 23 +++++++++++++++++++++++
> > 1 file changed, 23 insertions(+)
> >
> > diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> > index 852c2ccc3268..d6b5820da850 100644
> > --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> > +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> > @@ -550,6 +550,29 @@
> > #size-cells = <0>;
> > };
> >
> > + ahci: sata@...8000 {
> > + compatible = "allwinner,sun8i-r40-ahci";
> > + reg = <0x01c18000 0x1000>;
> > + interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>;
> > + clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>;
> > + resets = <&ccu RST_BUS_SATA>;
> > + resets-name = "ahci";
> > + #address-cells = <1>;
> > + #size-cells = <0>;
> > + status = "disabled";
> > +
> > + sata_port: sata-port@0 {
> > + reg = <0>;
> > + phys = <&sata_phy>;
> > + };
> > + };
> > +
> > + sata_phy: sata-phy@...80c0 {
> > + compatible = "allwinner,sun8i-r40-sata-phy";
> > + reg = <0x1c180c0 0x200>;
>
> Overlapping devices in the DTS is not ok.
>
I do the same than arch/arm/boot/dts/berlin2.dtsi (sata@...000 phy@...0a0)
But since it is not a good justification, it seems that regmap is my only solution ?
Regards
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