linux-kernel - Re: [PATCH 11/14] ARM: dts: sun8i: r40: Add device node for CSI0

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Date:   Mon, 16 Dec 2019 14:53:57 +0100
From:   Maxime Ripard <mripard@...nel.org>
To:     Chen-Yu Tsai <wens@...nel.org>
Cc:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Linux Media Mailing List <linux-media@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 11/14] ARM: dts: sun8i: r40: Add device node for CSI0

On Mon, Dec 16, 2019 at 09:42:30PM +0800, Chen-Yu Tsai wrote:
> On Mon, Dec 16, 2019 at 9:39 PM Maxime Ripard <mripard@...nel.org> wrote:
> >
> > On Mon, Dec 16, 2019 at 12:59:21AM +0800, Chen-Yu Tsai wrote:
> > > From: Chen-Yu Tsai <wens@...e.org>
> > >
> > > The CSI0 and CSI1 blocks are the same as found on the A20. However only
> > > CSI0 is supported upstream right now.
> > >
> > > Add a device node for CSI0 using the A20 compatible as a fallback, and
> > > the standard pinctrl options. Also add the MBUS interconnect.
> > >
> > > Signed-off-by: Chen-Yu Tsai <wens@...e.org>
> > > ---
> > >  arch/arm/boot/dts/sun8i-r40.dtsi | 36 ++++++++++++++++++++++++++++++++
> > >  1 file changed, 36 insertions(+)
> > >
> > > diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi
> > > index 82ea0b5b0710..2d1e97cc4155 100644
> > > --- a/arch/arm/boot/dts/sun8i-r40.dtsi
> > > +++ b/arch/arm/boot/dts/sun8i-r40.dtsi
> > > @@ -180,6 +180,20 @@ nmi_intc: interrupt-controller@...0030 {
> > >                       interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>;
> > >               };
> > >
> > > +             csi0: csi@...9000 {
> > > +                     compatible = "allwinner,sun8i-r40-csi0",
> > > +                                  "allwinner,sun7i-a20-csi0";
> > > +                     reg = <0x01c09000 0x1000>;
> > > +                     interrupts = <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>;
> > > +                     clocks = <&ccu CLK_BUS_CSI0>, <&ccu CLK_CSI_SCLK>,
> > > +                              <&ccu CLK_DRAM_CSI0>;
> > > +                     clock-names = "bus", "isp", "ram";
> > > +                     resets = <&ccu RST_BUS_CSI0>;
> > > +                     interconnects = <&mbus 5>;
> > > +                     interconnect-names = "dma-mem";
> > > +                     status = "disabled";
> > > +             };
> > > +
> > >               mmc0: mmc@...f000 {
> > >                       compatible = "allwinner,sun8i-r40-mmc",
> > >                                    "allwinner,sun50i-a64-mmc";
> > > @@ -355,6 +369,20 @@ clk_out_a_pin: clk-out-a-pin {
> > >                               function = "clk_out_a";
> > >                       };
> > >
> > > +                     /omit-if-no-ref/
> > > +                     csi0_8bits_pins: csi0-8bits-pins {
> > > +                             pins = "PE0", "PE2", "PE3", "PE4", "PE5",
> > > +                                    "PE6", "PE7", "PE8", "PE9", "PE10",
> > > +                                    "PE11";
> > > +                             function = "csi0";
> > > +                     };
> > > +
> > > +                     /omit-if-no-ref/
> > > +                     csi0_mclk_pin: csi0-mclk-pin {
> > > +                             pins = "PE1";
> > > +                             function = "csi0";
> > > +                     };
> > > +
> > >                       gmac_rgmii_pins: gmac-rgmii-pins {
> > >                               pins = "PA0", "PA1", "PA2", "PA3",
> > >                                      "PA4", "PA5", "PA6", "PA7",
> > > @@ -624,6 +652,14 @@ gmac_mdio: mdio {
> > >                       };
> > >               };
> > >
> > > +             mbus: dram-controller@...2000 {
> > > +                     compatible = "allwinner,sun8i-r40-mbus";
> > > +                     reg = <0x01c62000 0x1000>;
> > > +                     clocks = <&ccu 155>;
> >
> > We should export the clock too?
>
> I meant to do it separately. Haven't gotten to it though.

Ok, great!

Maxime

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