linux-kernel - Re: [PATCH v3 6/7] arm: dts: sun8i: a33: Add the DSI-related nodes

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Date:   Thu, 22 Mar 2018 10:23:32 +0800
From:   Chen-Yu Tsai <wens@...e.org>
To:     Maxime Ripard <maxime.ripard@...tlin.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Mark Rutland <mark.rutland@....com>,
        Rob Herring <robh+dt@...nel.org>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Gustavo Padovan <gustavo@...ovan.org>,
        Daniel Vetter <daniel.vetter@...el.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Sean Paul <seanpaul@...omium.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>
Subject: Re: [PATCH v3 6/7] arm: dts: sun8i: a33: Add the DSI-related nodes

On Tue, Mar 6, 2018 at 9:56 PM, Maxime Ripard <maxime.ripard@...tlin.com> wrote:
> From: Maxime Ripard <maxime.ripard@...e-electrons.com>
>
> The A33 has a MIPI-DSI block, along with its D-PHY. Let's add it in order
> to use it in the relevant boards.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@...e-electrons.com>
> ---
>  arch/arm/boot/dts/sun8i-a33.dtsi | 44 +++++++++++++++++++++++++++++++++-
>  1 file changed, 44 insertions(+)
>
> diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi
> index 50eb84fa246a..94cfa7b1bbfa 100644
> --- a/arch/arm/boot/dts/sun8i-a33.dtsi
> +++ b/arch/arm/boot/dts/sun8i-a33.dtsi
> @@ -236,6 +236,11 @@
>                                         #address-cells = <1>;
>                                         #size-cells = <0>;
>                                         reg = <1>;
> +
> +                                       tcon0_out_dsi0: endpoint@1 {
> +                                               reg = <1>;
> +                                               remote-endpoint = <&dsi0_in_tcon0>;
> +                                       };
>                                 };
>                         };
>                 };
> @@ -280,6 +285,45 @@
>                         #io-channel-cells = <0>;
>                 };
>
> +               dsi0: dsi@...0000 {

Nit: There's only one so you don't need the numbered suffix. Also,
is "dsi" specific enough, or should we use "mipi-dsi"

> +                       compatible = "allwinner,sun6i-a31-mipi-dsi";
> +                       reg = <0x01ca0000 0x1000>;
> +                       interrupts = <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>;
> +                       clocks = <&ccu CLK_BUS_MIPI_DSI>,
> +                                <&ccu CLK_DSI_SCLK>;
> +                       clock-names = "bus", "mod";
> +                       resets = <&ccu RST_BUS_MIPI_DSI>;
> +                       phys = <&dphy0>;
> +                       phy-names = "dphy";
> +                       status = "disabled";
> +
> +                       ports {
> +                               #address-cells = <1>;
> +                               #size-cells = <0>;
> +
> +                               port@0 {
> +                                       #address-cells = <1>;
> +                                       #size-cells = <0>;
> +                                       reg = <0>;
> +
> +                                       dsi0_in_tcon0: endpoint {
> +                                               remote-endpoint = <&tcon0_out_dsi0>;
> +                                       };
> +                               };
> +                       };
> +               };
> +
> +               dphy0: d-phy@...1000 {

Same nit, and "dsi-phy" would be better.

Otherwise,

Reviewed-by: Chen-Yu Tsai <wens@...e.org>

> +                       compatible = "allwinner,sun6i-a31-mipi-dphy";
> +                       reg = <0x01ca1000 0x1000>;
> +                       clocks = <&ccu CLK_BUS_MIPI_DSI>,
> +                                <&ccu CLK_DSI_DPHY>;
> +                       clock-names = "bus", "mod";
> +                       resets = <&ccu RST_BUS_MIPI_DSI>;
> +                       status = "disabled";
> +                       #phy-cells = <0>;
> +               };
> +
>                 fe0: display-frontend@...0000 {
>                         compatible = "allwinner,sun8i-a33-display-frontend";
>                         reg = <0x01e00000 0x20000>;
> --
> git-series 0.9.1