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From: Geert Uytterhoeven <geert@linux-m68k.org>
To: "Lad, Prabhakar" <prabhakar.csengg@gmail.com>
Cc: "Lad Prabhakar" <prabhakar.mahadev-lad.rj@bp.renesas.com>,
	"Jens Axboe" <axboe@kernel.dk>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Vinod Koul" <vkoul@kernel.org>,
	"Mauro Carvalho Chehab" <mchehab@kernel.org>,
	"Marek Vasut" <marek.vasut+renesas@gmail.com>,
	"Yoshihiro Shimoda" <yoshihiro.shimoda.uh@renesas.com>,
	"Mark Brown" <broonie@kernel.org>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Kishon Vijay Abraham I" <kishon@ti.com>,
	"Liam Girdwood" <lgirdwood@gmail.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Magnus Damm" <magnus.damm@gmail.com>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	linux-ide@vger.kernel.org, dmaengine <dmaengine@vger.kernel.org>,
	"Linux I2C" <linux-i2c@vger.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@vger.kernel.org>,
	"Linux Media Mailing List" <linux-media@vger.kernel.org>,
	linux-pci <linux-pci@vger.kernel.org>,
	"ALSA Development Mailing List" <alsa-devel@alsa-project.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
	"USB list" <linux-usb@vger.kernel.org>,
	"Niklas Söderlund" <niklas.soderlund@ragnatech.se>
Subject: Re: [PATCH 20/20] arm64: dts: renesas: r8a774e1: Add VIN and CSI-2 nodes
Date: Thu, 6 Aug 2020 13:47:58 +0200
Message-ID: <CAMuHMdXie+GfKBO22mFrn4oG_y7YUxU9ekQdWnp1hn-6z2mLuQ@mail.gmail.com> (raw)
In-Reply-To: <CA+V-a8vXjhV-EeQb=bBhoRmuVA=0GSuFiV33N9nkhi39VNN6oA@mail.gmail.com>

Hi Prabhakar,

On Thu, Aug 6, 2020 at 1:17 PM Lad, Prabhakar
<prabhakar.csengg@gmail.com> wrote:
> On Wed, Aug 5, 2020 at 12:19 PM Geert Uytterhoeven <geert@linux-m68k.org> wrote:
> > On Thu, Jul 16, 2020 at 7:20 PM Lad Prabhakar
> > <prabhakar.mahadev-lad.rj@bp.renesas.com> wrote:
> > > Add VIN and CSI-2 nodes to RZ/G2H (R8A774E1) SoC dtsi.
> > >
> > > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
> > > Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
> >
> > Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> >
> > However, before I queue this in renesas-devel for v5.10, I'd like to
> > have some clarification about the issue below.
> >
> > > --- a/arch/arm64/boot/dts/renesas/r8a774e1.dtsi
> > > +++ b/arch/arm64/boot/dts/renesas/r8a774e1.dtsi
> >
> > > +               vin4: video@e6ef4000 {
> > > +                       compatible = "renesas,vin-r8a774e1";
> > > +                       reg = <0 0xe6ef4000 0 0x1000>;
> > > +                       interrupts = <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
> > > +                       clocks = <&cpg CPG_MOD 807>;
> > > +                       power-domains = <&sysc R8A774E1_PD_ALWAYS_ON>;
> > > +                       resets = <&cpg 807>;
> > > +                       renesas,id = <4>;
> > > +                       status = "disabled";
> > > +
> > > +                       ports {
> > > +                               #address-cells = <1>;
> > > +                               #size-cells = <0>;
> > > +
> > > +                               port@1 {
> > > +                                       #address-cells = <1>;
> > > +                                       #size-cells = <0>;
> >
> > "make dtbs W=1" says:
> >
> >     arch/arm64/boot/dts/renesas/r8a774e1.dtsi:1562.12-1572.7: Warning
> > (graph_child_address): /soc/video@e6ef4000/ports/port@1: graph node
> > has single child node 'endpoint@0', #address-cells/#size-cells are not
> > necessary
> >
> > (same for vin5-7 below)
> >
> Referring to commit 5e53dbf4edb4d ("arm64: dts: renesas: r8a77990: Fix
> VIN endpoint numbering") we definitely need endpoint numbering.
> Probably the driver needs to be fixed to handle such cases.

> > > +
> > > +                                       reg = <1>;
> > > +
> > > +                                       vin4csi20: endpoint@0 {
> > > +                                               reg = <0>;
> > > +                                               remote-endpoint = <&csi20vin4>;

On R-Car E3, the single endpoint is at address 2, so "make dtbs W=1"doesn't
complain. Here it is at address 0.

Niklas?

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-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

  reply index

Thread overview: 79+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-16 17:18 [PATCH 00/20] Add support for SATA/PCIe/USB2[3]/VIN/CSI on R8A774E1 Lad Prabhakar
2020-07-16 17:18 ` [PATCH 01/20] dt-bindings: pci: rcar-pci: Add device tree support for r8a774e1 Lad Prabhakar
2020-07-21  3:33   ` Rob Herring
2020-07-22  8:51   ` Wolfram Sang
2020-08-05  8:55   ` Geert Uytterhoeven
2020-08-27 17:34   ` Lad, Prabhakar
2020-08-28  1:13     ` Yoshihiro Shimoda
2020-09-19 10:46   ` Lad, Prabhakar
2020-07-16 17:18 ` [PATCH 02/20] arm64: dts: renesas: r8a774e1: Add PCIe device nodes Lad Prabhakar
2020-07-22  8:58   ` Wolfram Sang
2020-07-22  9:00     ` Wolfram Sang
2020-07-22  9:03       ` Lad, Prabhakar
2020-08-05 11:08   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 03/20] dt-bindings: ata: renesas,rcar-sata: Add r8a774e1 support Lad Prabhakar
2020-07-21  3:34   ` [PATCH 03/20] dt-bindings: ata: renesas, rcar-sata: " Rob Herring
2020-08-05  8:48   ` [PATCH 03/20] dt-bindings: ata: renesas,rcar-sata: " Geert Uytterhoeven
2020-09-19 10:23   ` Lad, Prabhakar
2020-07-16 17:18 ` [PATCH 04/20] arm64: dts: renesas: r8a774e1: Add SATA controller node Lad Prabhakar
2020-08-05 11:09   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 05/20] dt-bindings: phy: renesas,usb2-phy: Add r8a774e1 support Lad Prabhakar
2020-07-20  6:35   ` Vinod Koul
2020-08-05  8:54   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 06/20] arm64: dts: renesas: r8a774e1: Add USB2.0 phy and host (EHCI/OHCI) device nodes Lad Prabhakar
2020-08-05 11:09   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 07/20] dt-bindings: usb: renesas,usb3-peri: Document r8a774e1 support Lad Prabhakar
2020-07-21  3:35   ` [PATCH 07/20] dt-bindings: usb: renesas, usb3-peri: " Rob Herring
2020-08-05  8:56   ` [PATCH 07/20] dt-bindings: usb: renesas,usb3-peri: " Geert Uytterhoeven
2020-09-19 10:50   ` Lad, Prabhakar
2020-09-20 14:08     ` Greg Kroah-Hartman
2020-09-21  7:30       ` Geert Uytterhoeven
2020-09-22  8:39         ` Greg Kroah-Hartman
2020-09-22  8:40           ` Lad, Prabhakar
2020-07-16 17:18 ` [PATCH 08/20] dt-bindings: usb: usb-xhci: " Lad Prabhakar
2020-07-21  3:35   ` Rob Herring
2020-08-05  8:58   ` Geert Uytterhoeven
2020-08-27 17:15   ` Lad, Prabhakar
2020-08-28  1:11     ` Yoshihiro Shimoda
2020-08-28  7:52       ` Lad, Prabhakar
2020-07-16 17:18 ` [PATCH 09/20] dt-bindings: phy: renesas,usb3-phy: Add " Lad Prabhakar
2020-07-20  6:35   ` Vinod Koul
2020-08-05  9:01   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 10/20] arm64: dts: renesas: r8a774e1: Add USB3.0 device nodes Lad Prabhakar
2020-08-05 11:14   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 11/20] dt-bindings: usb: renesas,usbhs: Add r8a774e1 support Lad Prabhakar
2020-07-21  3:35   ` Rob Herring
2020-08-05  9:02   ` Geert Uytterhoeven
2020-08-27 17:08   ` Lad, Prabhakar
2020-08-28  1:08     ` Yoshihiro Shimoda
2020-09-19 10:54   ` Lad, Prabhakar
2020-09-20 14:08     ` Greg Kroah-Hartman
2020-09-21  7:29       ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 12/20] dt-bindings: dma: renesas,usb-dmac: Add binding for r8a774e1 Lad Prabhakar
2020-07-20  6:36   ` Vinod Koul
2020-08-05  9:03   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 13/20] arm64: dts: renesas: r8a774e1: Add USB-DMAC and HSUSB device nodes Lad Prabhakar
2020-08-05 11:14   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 14/20] dt-bindings: sound: renesas,rsnd: Document r8a774e1 bindings Lad Prabhakar
2020-08-05  9:05   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 15/20] arm64: dts: renesas: r8a774e1: Add audio support Lad Prabhakar
2020-08-05 11:15   ` Geert Uytterhoeven
2020-07-16 17:18 ` [PATCH 16/20] dt-bindings: media: renesas,csi2: Add R8A774E1 support Lad Prabhakar
2020-07-17 13:13   ` Niklas
2020-07-21  3:36   ` Rob Herring
2020-07-16 17:18 ` [PATCH 17/20] dt-bindings: media: renesas,vin: " Lad Prabhakar
2020-07-17 13:07   ` Niklas
2020-07-21  3:36   ` Rob Herring
2020-07-16 17:18 ` [PATCH 18/20] media: rcar-csi2: Enable support for R8A774E1 Lad Prabhakar
2020-07-17 13:13   ` Niklas
2020-07-16 17:18 ` [PATCH 19/20] media: rcar-vin: " Lad Prabhakar
2020-07-17 13:19   ` Niklas
2020-07-16 17:18 ` [PATCH 20/20] arm64: dts: renesas: r8a774e1: Add VIN and CSI-2 nodes Lad Prabhakar
2020-08-05 11:18   ` Geert Uytterhoeven
2020-08-06 11:16     ` Lad, Prabhakar
2020-08-06 11:47       ` Geert Uytterhoeven [this message]
2020-08-07 11:27         ` Niklas Söderlund
2020-08-07 11:36           ` Geert Uytterhoeven
2020-08-08  7:48             ` Niklas Söderlund
2020-07-17 15:39 ` [PATCH 00/20] Add support for SATA/PCIe/USB2[3]/VIN/CSI on R8A774E1 Mark Brown
2020-07-22  8:50 ` Wolfram Sang

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